Panasonic Industry Commercializes Conductive Polymer Tantalum Solid Capacitors (POSCAP) with The Industry's Lowest Profile*1 to Support High-Output Power Delivery Required for USB Type-C Connections
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Panasonic Industry Commercializes Conductive Polymer Tantalum Solid Capacitors (POSCAP) with The Industry's Lowest Profile*1 to Support High-Output Power Delivery Required for USB Type-C Connections

　　Panasonic Industry Co., Ltd., a Panasonic Group company, announced  that it will begin commercial production of its two models of Conductive Polymer Tantalum Solid Capacitors (POSCAP), 50TQT33M and 63TQT22M. These capacitors are incorporated into power circuits used for information and communication equipment, including laptops and tablets. They offer an ultra-high withstand voltage and high capacitance in a body with the industry’s lowest profile of 3 mm, supporting high-output power delivery through USB Type-C connectors. Mass production for these models is planned to start in December 2025.　　These capacitors are ideal for voltage stabilization and noise reduction in power supplies compliant with USB Power Delivery (USB-PD)[1] 3.1. While previous USB-C connectors supplied up to 100 W (20 V/5 A), USB-PD 3.1 expands this to 240 W (48 V/5 A). This enables widespread use of USB-C connectors for high-speed data transfer and rapid charging, and is expected to further expand applications to larger equipment requiring high power output, such as displays.　　On the other hand, information and communication equipment such as laptops are increasingly required to be thinner and more compact. Capacitors therefore must combine an ultra-high withstand voltage, high capacitance, and a low profile in order to fit into limited space. Panasonic Industry began mass production of Conductive Polymer Tantalum Solid Capacitors (POSCAP) in 1997 and, as an industry leader, has continuously delivered first-of-their-kind products. Leveraging proprietary powder molding technology and film formation technologies, the company has newly developed two models that achieve both an ultra-high withstand voltage and high capacitance in a package with the industry's lowest profile of 3 mm.　　Through these unique device technologies, Panasonic Industry will continue to contribute to enhancing the functionality of electronic equipment, including laptops, while also reducing the environmental impact through smaller, lighter devices and lower material usage.　　Key features:　　1. Achieves both an ultra-high withstand voltage and high capacitance*2 to support high-output USB Type-C power delivery, in a 3 mm profile—the lowest in the industry*1—enabled by proprietary powder molding and film formation technologies　　2. Lineup of USB-PD 3.1-compliant models rated at 50 V and 63 V　　3. Contributes to reduced material usage lower environmental impact through low-profile design　　*1 As of September 18, 2025, Conductive polymer tantalum solid capacitors with rated voltages of 50 V and 63 V and capacitance of 22 μF or higher (Panasonic Industry data)　　*2 USB-Power Delivery 3.1 (180 W/240 W output) compliant high-capacitance conductive polymer tantalum solid capacitors with rated voltages of 50 V and 63 V, and a capacitance of 22 μF or higherDetailed features:　　1. Achieves both an ultra-high withstand voltage and high capacitance to support high-output USB Type-C power delivery, in a 3 mm profile—the lowest in the industry—enabled by proprietary powder molding and film formation technologies　　To achieve capacitor performance required for USB-PD 3.1 power supplies in a low-profile body, both high capacitance and a high withstand voltage must be ensured, despite their trade-off relationship. High-capacitance tantalum powder is necessary for electrode materials, but its fine particle size makes molding difficult, creating challenges for stable production. Forming a uniform dielectric film on the surface of the electrodes is important for enhancing the withstand voltage. However, since electrodes made with high-capacitance tantalum powder contain extremely small internal pores, dielectric oxide films tend to develop imperfections.　　Panasonic Industry overcame these challenges by establishing proprietary technology to mold high-capacitance tantalum powder with uniform density, and by optimizing the film deposition process to create flawless dielectric films. This enabled the development of two new models that combine an ultra-high withstand voltage and high capacitance, meeting the USB-C high-output power delivery requirements in a 3 mm low-profile package.Cross-sectional view of POSCAP and enlarged view of the inside of the electrode body　　2. Lineup of USB-PD 3.1-compliant models rated at 50 V and 63 V　　Until now, Panasonic Industry’s POSCAP lineup extended only up to 35 V, with no models compatible with USB-PD 3.1, which extends the rated voltage specification to 36 V (180 W) and 48 V (240 W). The two new models, rated at 50 V and 63 V, each achieve a high capacitance of 22 μF or higher in a package with the industry's lowest profile of 3 mm. The full lineup provides flexibility to meet diverse applications and equipment specifications.　　3. Contributes to reduced material usage lower environmental impact through low-profile design　　Compared to the industry standard size*3, the new models reduce volume by 25%, contributing to a lower environmental impact through reduced material usage.　　*3 Comparison with the industry standard size (7.3 mm × 4.3 mm × 4 mm) of conductive polymer tantalum solid capacitors used in USB-PD 3.1 compliant power suppliesApplications:　　Voltage stabilization and noise reduction of USB-PD 3.1-compliant power supplies for laptops, displays, and peripheral equipment　　Arc discharge[2] countermeasures for USB-PD 3.1-compliant connectors　　Specifications:　　Life: 2,000 hours at 105°C; guaranteed operating temperature range: -55°C to 105°C　　Ripple current[3]: 100 kHz, 105°C　　ESR[4]: 100 kHz, 20°C　　*4 Product dimensional tolerance:　　Length (L): ±0.3 mm; Width (W): ±0.2 mm; Height (H): ±0.2 mmTerm descriptions:　　[1] USB-PD　　The power delivery standards established by the standard-setting organization USB Implementers Forum, Inc. (USB-IF). With the launch of USB-PD 3.1 in 2021, USB Type-C cables and connectors can now deliver up to 240 W of power, supporting a wide range of applications—from smartphones and laptops to larger equipment such as monitors.　　[2] Arc discharge　　An electric spark or discharge phenomenon that occurs when a high current flows at low voltage in electrical circuits.　　[3] Ripple current　　When a voltage fluctuation is applied to a capacitor, a corresponding charging or discharging current flows through the capacitor. The current applied to this capacitor is referred to as a ripple current. The higher the ripple current, the higher the allowable current.　　[4] ESR (Equivalent Series Resistance)　　Represents the value of an internal resistance component that can cause heat generation. Capacitors with lower ESR allow higher ripple currents and provide excellent noise absorption.
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Release time：2025-11-06 15:35 reading：455 Continue reading>>
TAIYO YUDEN Commercializes 1005M-Size Embeddable Multilayer Ceramic Capacitor with 22-μF Capacitance for AI Servers
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TAIYO YUDEN Commercializes 1005M-Size Embeddable Multilayer Ceramic Capacitor with 22-μF Capacitance for AI Servers

　　TAIYO YUDEN CO., LTD. has commercialized and begun mass production of embeddable multilayer ceramic capacitor (MLCC) that achieves a capacitance of 22-μF in a 1005M size (1.0 x 0.5 mm).　　This ceramic capacitor is an MLCC designed for decoupling applications on IC power lines used in AI servers and other types of information devices.　　Components embedded in a board require high precision in terms of flatness of the external electrodes for connection to the circuit. With respect to this requirement, TAIYO YUDEN has commercialized an embeddable MLCC that achieves a 22-μF capacitance in a 1005M size by enhancing external electrode formation technology and other elemental technologies.　　Mass production of the capacitor began at our Tamamura Plant (Sawa District, Gunma Prefecture) in August 2025. Samples are available for 20 yen per unit.　　Technology Background　　AI servers and other types of devices with advanced information processing capabilities are equipped with ICs that consume extremely large amounts of power. For decoupling purposes in such power supply circuits, small, high-capacity MLCCs are required to handle large currents.　　Additionally, to minimize circuit loss and noise, it is important to route the power supply circuit close to the ICs. Traditional power supply circuits are routed around ICs. But, technological developments are progressing, allowing them to be placed closer, such as on the back of the board or directly under the ICs. Thus, embeddable MLCCs need to be equipped with high-precision external electrodes to connect to the lines.　　To satisfy this need, TAIYO YUDEN has improved its external electrode formation technology and commercialized 1005M-size embeddable MLCC with a capacitance of 22 μF.　　TAIYO YUDEN is continuing to develop new MLCCs with higher capacitance and other distinguishing features.　　■ Application　　Decoupling applications on IC power lines used in AI servers and other types of information devices
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Release time：2025-10-20 16:40 reading：451 Continue reading>>
Murata Begins World’s First Mass Production of 47µF Multilayer Ceramic Capacitor in 0402-inch Size
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Murata Begins World’s First Mass Production of 47µF Multilayer Ceramic Capacitor in 0402-inch Size

　　Murata Manufacturing Co., Ltd. has begun the world’s first mass production of the 0402-inch size (1.0 × 0.5 mm) multilayer ceramic capacitors (MLCC) with a capacitance of 47µF*. The new product line, available in two variants with different temperature characteristics, is designed to advance MLCC miniaturization and enhance customer system performance.　　In recent years, high-performance IT solutions, such as those used in AI servers and data centers, have seen rapid growth. Due to the often high component density demanded by these devices, optimized component placement within limited PCB areas is paramount. As a result, there is increasing demand for capacitors that offer both miniaturization and higher capacitance, along with high reliability under high-temperature conditions caused by heat generated from PCBs and integrated circuits (ICs).　　In response to these requirements, Murata has utilized its proprietary technologies in ceramic dielectric layers and internal electrode miniaturization to facilitate the world’s first mass production of this innovative 47µF product in the compact 0402-inch size. Compared to Murata’s conventional 0603-inch size product with the same capacitance, this new capacitor reduces mounting area by approximately 60%. Additionally, it delivers about 2.1 times the capacitance of Murata’s previous 22µF product in the same 0402-inch size.　　The MLCC is available in two variants – the X5R (EIA) GRM158R60E476ME01 with an operating temperature range of -55 to +85°C, and the X6S (EIA) GRM158C80E476ME01 with an operating temperature range of -55 to +105°C. The ability to operate in environments up to 105°C, makes the X6S variant well-suited for placement near ICs, thereby contributing to improved device performance and integration. Both devices feature a ±20% tolerance and rated voltage of 2.5Vdc.　　Murata is committed to advancing miniaturized capacitors with higher capacitance and improved high-temperature reliability to meet evolving market demands. These innovations not only support the ongoing miniaturization and functional enhancement of electronic devices but also contribute to lower material usage and increased production efficiency per unit, ultimately helping reduce power consumption at Murata’s factories and lessen environmental impact.　　For inquiries regarding this product, please contact us.　　Notes　　*Based on Murata research as of July 9, 2025.
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Release time：2025-07-10 14:13 reading：700 Continue reading>>
Murata Unveils the World’s Smallest Multilayer Ceramic Capacitor with the First 006003-inch Size (0.16mm×0.08mm) Device
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Murata Unveils the World’s Smallest Multilayer Ceramic Capacitor with the First 006003-inch Size (0.16mm×0.08mm) Device

　　Murata Manufacturing Co. Ltd has expanded its innovative range of multilayer ceramic capacitors (MLCCs) with yet another groundbreaking addition. Exemplifying Murata’s continual commitment for minimization, it has developed the world’s first 006003-inch size (0.16 mm x 0.08 mm) MLCC. This achievement represents a volume ratio approximately 75% lower than the existing smallest product, the 008004-inch size (0.25×0.125mm).　　In recent years, as electronic devices become more sophisticated and compact, the number of electronic components installed has increased, while simultaneously the space required for installation has been reduced. As electronic devices continue to advance in intelligence, there has been a corresponding increase in the incorporation of MLCCs across all types of electronic devices, with the latest smartphones utilizing up to 1000 units. Against this background, there is a growing need for ultra-compact products that enable high-density component mounting with limited mounting space.　　Since its inception in 1944, Murata has been committed to the exploration and advancement of ceramic capacitors, nurturing its unparalleled understanding of raw materials, manufacturing processes, and production technologies. In 2014, Murata successfully brought to market the world’s first 008004-inch size (0.25×0.125mm) multilayer ceramic capacitors, which have experienced growing utilization in smartphone modules and wearable devices. The creation of this MLCC is the outcome of years of focused R&D in elemental technologies, resulting in a device that measures just 0.16mm x 0.08mm x 0.08mm (L/W/T).　　“Under our slogan 'Innovator in Electronics' we will continue to lead the electronics industry by providing innovative products and developing technologies,” said Hidetoshi Nakagawa, General Manager of Ceramic Capacitor Marketing at Murata Manufacturing Co Ltd. He continued, “This product is another world’s first in a long line of Murata’s market defining MLCCs and will significantly contribute to the future miniaturization and improvement of our customer’s electronic devices.”　　This revolutionary product will be showcased at Murata’s booth (6H104) during the CEATEC JAPAN 2024 event, scheduled to take place at Makuhari Messe in Chiba Prefecture on October 15, 2024. For further information on CEATEC 2024 and tickets visit here
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Release time：2024-09-26 11:09 reading：984 Continue reading>>
How to Discharge a Capacitor : A Step-by-Step Guide
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How to Discharge a Capacitor : A Step-by-Step Guide

　　Capacitors are essential components in electronic circuits, storing electrical energy for later use. However, when working with capacitors, it’s crucial to handle them properly to ensure safety and prevent damage. One important aspect of working with capacitors is “How to Discharge a Capacitor”. In this guide, we’ll walk you through the steps to safely discharge a capacitor, why it’s necessary, and the precautions you should take.　　What is capacitors?Before diving into the discharge process, it’s helpful to understand what capacitors are and how they function. A capacitor is an electrical component that stores and releases energy in the form of an electric charge. It consists of two conductive plates separated by an insulating material called a dielectric. When a capacitor is charged, it holds a voltage difference between its plates, which can persist even after power is disconnected.　　Why Discharge a Capacitor?1. Safety: Capacitors can retain a significant amount of charge even after the power is turned off. Discharging a capacitor is crucial to avoid electric shocks or damage to electronic components.　　2. Maintenance and Repair: When servicing electronic devices, discharging capacitors ensures that there are no residual charges that could interfere with repairs or adjustments.　　3. Circuit Design: In some cases, you might need to discharge a capacitor to reset or test electronic circuits.　　How to discharge a capacitor?1. Safety First: Power Off the Device　　– Unplug the Device: Ensure the device or circuit is completely disconnected from the power source. This is the most critical step in preventing electrical shocks.　　– Wait for a Safe Period: Even after disconnecting power, give the capacitor some time to self-discharge. However, don’t rely solely on this; always use proper discharge methods.　　2. Use Proper Discharge Tools　　– Discharge Tool: For high-voltage capacitors, it’s advisable to use a dedicated capacitor discharge tool, which often includes a resistor to safely dissipate the charge.　　– Insulated Tools: For lower-voltage capacitors, you can use insulated screwdrivers or pliers.　　3. Discharge Process　　– Connect the Discharge Tool: If using a discharge tool with a resistor, connect it across the capacitor’s terminals. If using a screwdriver, carefully touch the insulated handle to both terminals, ensuring you don’t touch the metal parts directly.　　– Hold for a Few Seconds: Allow the tool to stay in contact with the terminals for several seconds to ensure the capacitor is fully discharged.　　4. Verify the Capacitor is Discharged　　– Use a Multimeter: To confirm that the capacitor is completely discharged, use a multimeter to check the voltage across the terminals. A reading close to 0 volts indicates that the capacitor is safe to handle.　　5. Dispose of or Store Safely　　– Handling: Once discharged, handle the capacitor with care. If it’s to be reused, store it in a safe location where it won’t accidentally get recharged or come into contact with conductive materials.　　– Disposal: If you need to dispose of the capacitor, follow local electronic waste disposal regulations to ensure environmentally responsible handling.　　Precautions　　– Never Short the Terminals Directly: Directly shorting the capacitor terminals with a metal object can cause sparks, heat, and potential damage.　　– Use Insulated Equipment: Always use tools with proper insulation to avoid accidental electric shocks.　　– Handle with Care: Even discharged capacitors can have residual charges. Handle them carefully to avoid any accidental charge buildup.　　ConclusionDischarging a capacitor is a straightforward but essential task when working with electronic devices. By following these steps and taking the necessary precautions, you can ensure both your safety and the proper functioning of your electronic components. Always prioritize safety and use the appropriate tools to handle capacitors effectively. With these practices, you’ll be better equipped to handle capacitors in various electronic applications.
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Release time：2024-09-25 15:20 reading：915 Continue reading>>
TAIYO YUDEN AEC-Q200 Conductive Polymer Hybrid Capacitors
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TAIYO YUDEN AEC-Q200 Conductive Polymer Hybrid Capacitors

　　TAIYO YUDEN AEC-Q200 Conductive Hybrid Capacitors feature a superior electrical performance with a low equivalent series resistance (ESR) rating and a high ripple current range. The capacitors are AEC-Q200 qualified for various automotive applications and vibration resistant up to 30G. The capacitors deliver a low leak current, which ensures product longevity. The AEC-Q200 Hybrid Capacitors are ideal for automotive applications, including powertrain, power steering, body control modules, battery management systems (BMS), brake systems, parking assist, infotainment, ADAS systems, and more.　　FEATURESSuperior electrical performanceLow ESRHigh ripple current≤30G guaranteed vibration resistanceLow leak currentEnsures product longevityAEC-Q200 qualified　　SPECIFICATIONS　　5mm x 5.8mm to 12.5mm x 13.5mm case sizes　　10μF to 820μF capacitance range　　6.3V to 80V rated voltage range　　-55°C to +105°C or +125°C or +135°C operating temperature range　　500mArms to 4500mArms max rated ripple current range　　Endurance　　10,000 hours at +105°C　　4000 to 6000 hours at +125°C　　4000 hours at +135°C　　APPLICATIONSAutomotivePowertrain and safetyEngine/motor systemPower steeringBody control moduleBMS systemsBrake systemsParking assist systemsInfotainmentLighting systemsAD and ADAS systemsNavigation systemsSensor systemsAirbag control units
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Release time：2024-07-26 13:23 reading：1911 Continue reading>>
Why use tantalum <span style='color:red'>capacitor</span>s in circuit board assembly
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Why use tantalum capacitors in circuit board assembly

　　A capacitor is a component made up of two metal films placed close together and separated by an insulating material. The two pieces of metal are called pole plates, and the material in between is called the dielectric. The key reason why capacitors can be divided into different types is that there are certain differences. There are many differences not only in materials, but even in design principles, working principles and structures.　　Tantalum is the second most precious metal after precious metals, and is one of the most expensive of the rare metals. Tantalum capacitors are electronic components with tantalum as the main component, small in size and high in capacity, installed on printed circuit boards of many small electrical/electronic devices such as personal computers, cell phones and digital.　　What is tantalum capacitor　　Electrolytic capacitors with tantalum as a component are called tantalum capacitors. They are polarized capacitors with good frequency and stability. It has a tantalum anode and electrolytic capacitor.　　Tantalum capacitors have been used in electronic circuits since the 1950’s. Today they still play an important role in many different types of electronics.　　Tantalum capacitors are a kind of electronic components which is widely used in the industries. They can be found in every electronic product such as speakers and cell phones, TV and microwave oven, computer and headphone.　　What is a tantalum capacitor used for　　Tantalum capacitors are small, high-capacity capacitors. Tantalum capacitors come in various shapes and are made into small and chip components suitable for surface mounting. Tantalum capacitors are used not only in military communications, but also in aviation, aerospace and other fields, and are widely used in industrial control and vision, in frequency equipment, communication instruments and other products.　　Due to the thin oxide film, the distance between the two pole plates of tantalum capacitors is very close, and there is almost no inductive reactance, which is very sensitive, so the charging and discharging speed is very fast. In addition, because there is no electrolyte inside the tantalum capacitor, it is very suitable for working under high temperature.　　Tantalum capacitors are used in many different applications, including:　　●Power supplies and inverters　　●Radio frequency systems　　●Telecommunications equipment　　●Scientific instrumentation equipment (e.g., oscilloscopes)　　What are the pros and cons of tantalum capacitors　　Tantalum capacitors are a good choice for electronic applications. They are used in power supplies and other low-power devices, as they provide high capacitance while maintaining low leakage currents. They also have excellent ESR (equivalent series resistance), which means that they can withstand high voltages without affecting their performance.　　Pros　　Tantalum capacitors have several advantages over traditional aluminum electrolytic capacitors:　　●Tantalum has better conductivity than aluminum, making it ideal for applications where heat dissipation is important (such as switching power supplies).　　●It has lower drift rate than aluminum due to its higher dielectric constants (dielectric constant is the property of an insulating material that determines how easily electricity flows through it).　　●You can use tantalum capacitors with no risk of arcing or explosions because there’s no need for venting holes on them—and if you do want one then you’ll be able to find one at any electronics store!　　Cons　　There are some disadvantages of tantalum capacitors:　　●Tantalum capacitors are more expensive than ceramic capacitors, and they can be up to twice as expensive as aluminum electrolytic capacitors.　　●It takes time for the capacitor to break in and get its full potential.　　What are the features of tantalum capacitor　　The Reliability:　　Tantalum capacitors are reliable, and they have a longer service life than other types of capacitors. They have high current handling capability with low losses in comparison to other ceramic types such as alumina/silicon carbide (ACSR).　　The low power consumption　　The low power consumption is another advantage of tantalum capacitors. Since they have a low voltage drop, they require less energy to run at full capacity. This means that you will use less electricity per day than you would with other types of capacitors. Another benefit is that your system will generate less heat during operation so there’s no need for fans or cooling systems.　　The high energy density　　The high energy density of tantalum capacitors is a great substitute for the traditional ceramic capacitors. This is because it has a high electrical conductivity, which makes it an excellent choice for use in applications that require high power densities or large currents.　　In addition to its excellent electrical properties, tantalum capacitors also have the ability to be stacked together to form larger assemblies for even greater power handling capacity. These stacking designs can be used as independent units or as building blocks toward larger projects.　　Resistance to high temperatures and voltages　　Tantalum capacitors have low temperature coefficients and can withstand high voltage applications without any problems, unlike the aluminum electrolytic type which has a low coefficient of thermal expansion at elevated temperatures.What is polarity on tantalum capacitor　　Tantalum capacitor has one-way conductivity, which is called “polarity”, when using, the current should be accessed according to the positive and negative direction of the power supply, the anode (positive) of the capacitor is connected to the “+” pole of the power supply, and the cathode (negative) is connected to the “-” pole of the power supply, if the capacitor is connected wrongly, not only the capacitor can not play a role, but also the leakage current is very large, and the core will be hot in a short time, and the oxide film will be destroyed and then fail.　　In general, positive polarity means positive terminal of the battery is connected to positive terminal of the capacitor while negative polarity means that it is connected to negative terminal of the capacitor.
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Release time：2024-07-05 14:09 reading：862 Continue reading>>
Murata：Commercialized polymer aluminum electrolytic <span style='color:red'>capacitor</span>s that have achieved low ESR 4.5 mΩ with a thin design and high capacitance
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Murata：Commercialized polymer aluminum electrolytic capacitors that have achieved low ESR 4.5 mΩ with a thin design and high capacitance

　　Key features　　Achieved low ESR 4.5 mΩ with a thin design and high capacitance　　A low ESR product with high output noise level reduction effects　　Contributes to stable power supply for CPU, GPU, and FPGA of data centers and accelerators that require high currents　　Key applications: Server, accelerator, laptop PC　　Request a free sample on the “my Murata” registered members-only portal website　　Murata Manufacturing Co., Ltd. (hereinafter “Murata”) has developed the “ECASD40E477M4R5KA0” (hereinafter “this product”) polymer aluminum electrolytic smoothing capacitor that achieves low ESR (4.5 mΩ) while maintaining a thin design (2.0 mm Max) and large capacitance (470 μF) in a D case (7.3 x 4.3 mm), equivalent to conventional products*1. Mass production has already begun, and samples can also be provided.　　*1ECASD40E477M006KA0 (470uF/2.5V/6mΩ)　　In recent years, IT devices such as servers and accelerators used in data centers are being created to support larger currents. Since IC voltage fluctuation and heat generation are major issues that must be tackled to achieve stable device operation, it is necessary to both increase the capacitance of the capacitors used to suppress voltage fluctuations and to mount large, high-performance heat sinks (cooling units) on the ICs. Murata has proposed component costs reduction through problem solving using conventional low-profile and high-capacitance products as well as by reducing the number of components used.　　However, there is a growing demand for lower ESR products as a response to noise amplification due to the application of larger currents. Murata has now developed this product with a ESR value improved by 25% while maintaining the height and high-capacitance of conventional products. With this product, Murata contributes to providing stable device power supply while suppressing mounting areas and costs of electronic components.　　Specifications
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Release time：2024-06-11 15:13 reading：919 Continue reading>>
What is <span style='color:red'>capacitor</span> polarity? How do you determine the polarity of a <span style='color:red'>capacitor</span>?
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What is capacitor polarity? How do you determine the polarity of a capacitor?

　　Capacitor is an electronic element which is passive in nature. This electronic element is utilized for storing charge. The capacitors are of two types: Polarized and non-polarized. Capacitor polarity is defined as having either negative or positive charge on the capacitor. The capacitors with no signs or charge are known as non-polarized capacitors. This element consists of two leads or ends. One off the end is positive or anode and the other is cathode or negative.　　What is capacitor polarity?　　Capacitor polarity can be elaborated as having a negative or positive influence or charge on the terminals of the capacitor. Numerous methods are advised for finding the capacitor polarity. The capacitors polarity can be distinguished by looking at its terminal’s length. The one with longer lead is supposed to be anode or negative terminal of the capacitor while the one with shorter lead is positive and one with large length is negative. Non-polar capacitors have nothing relevant to the specific format when it is to be connected within a circuit.　　Is capacitor always negative?　　No, the capacitor is not always negative; however, when connecting the capacitor with a source of voltage, the charge or potential of the capacitor can be determined. Capacitor polarity is needed to be considered because if ignored then its layer of oxide becomes vulnerable to damage and avalanche current is drawn by capacitor making it out of work or even destroyed.　　Are capacitors polarity sensitive?　　A total of three layers are present in capacitor when its fabrication process is considered. The layer which is for insulation is known as dielectric. It is in the middle of the anode and cathode which are metallic sheets. The anode and cathode are always in parallel to each other. The insulator is supposed to be in the middle of the sheets of metal. The main purpose of dielectric is that it separates the electrodes.　　The polarized capacitors are always polarity sensitive. The basic rules of the circuit theory must be obeyed in order to allow capacitors to work. For installation of a polar capacitor within a circuit, its polarity is surely to be considered. Capacitor polarity if ignored can cause damage to the circuit and to the capacitor as well.　　How do you determine the polarity of a capacitor?　　There are a number of ways through which the capacitor polarity can be determined. During the process of fabrication of capacitor, its polarity is to be taken care off. Some kinds of capacitors are having bars for its positive and negative terminals identification.　　The one with longer lead is supposed to be anode or positive terminal of the capacitor while the one with shorter lead is a cathode or negative terminal. However, sometimes the terminals have equal length and it gets very difficult to identify the terminal. Working out on the polarity of capacitor is of great importance as it will destroy the capacitor or even entire circuit if connected in wrong manner when the capacitor is polar in nature.　　Which capacitor must be connected with the correct polarity?　　The polar capacitors must be connected in a proper way within the circuit in accordance to the polarity of the circuit. The polarized capacitors never gets damaged with the heat when soldering is in progress.　　What are the examples of capacitor polarity?　　The following are some major and famous types of capacitor polarity.　　Electrolytic capacitors　　Electrolytic capacitors are widely utilized kind of capacitors. Such are of polar kind and are manufactured in two styles i.e., axial and radial. Both terminals of radial capacitors are on same side. Both sides of axial capacitors are on opposite sides. The radial capacitors are cheaper in price and also small in size.　　Tantalum capacitors　　Capacitor polarity is mentioned on tantalum capacitors too. These capacitors are having lower voltage and current ratings. These are of small size. Such capacitors are very expensive. Tantalum capacitors are only used for high demand and sensitive applications.　　Ceramic capacitors　　These are often in round shape and its ratings and values are mentioned on it. The length of its leads or terminals is answer to its positive and negative terminal like electrolytic capacitors. The applications of ceramic capacitors comprise of RF devices.　　Super capacitors　　Ultra-capacitor is another name given to super capacitor and such capacitors may range up to certain thousand Farads. Such elements are used in applications like consumer electronics.　　Film capacitors　　Such capacitors are in square or rectangular shape. Film capacitors are cheap and economical. These elements are having less frequency response. These are small in size and are utilized in most of the electronic equipment.　　How do you check capacitor polarity with a multi-meter?　　For determining the capacitor polarity with the help of a multi-meter, the device is to be set at higher resistance measuring range up to 1 Mega Ohms. The multi-meter is then to be connected to the legs of capacitor for its terminal identification. The red lead of multi-meter is to be connected to positive terminal while black lead is to be attached to negative terminal. Monitoring the meter to start reading from zero and slowly moving to measure higher resistance until infinity is reached.　　What happens if you reverse the polarity of a capacitor?　　In case if the polarity of the capacitor is reversed then the capacitor may get damaged because of the flow of high amount of current through it. Another possibility is that it may create a short-circuit destroying entire circuit.
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Release time：2024-02-23 14:00 reading：2303 Continue reading>>
Ceramic <span style='color:red'>capacitor</span>s vs. electrolytic <span style='color:red'>capacitor</span>s – what are the differences?
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Ceramic capacitors vs. electrolytic capacitors – what are the differences?

　　In the vast realm of electronic components, capacitors stand as fundamental devices for storing and releasing electrical energy. Among the diverse spectrum of capacitors available, two prominent types—ceramic capacitors vs. electrolytic capacitors —emerge with distinct characteristics, applications, and performance attributes. Delving deeper into their nuances is crucial for discerning engineers, hobbyists, and electronic enthusiasts aiming to optimize circuit designs and performance.　　What is capacitor?Capacitors, as passive electronic components, are pivotal in numerous circuit applications. They consist of two conductive plates (electrodes) separated by a dielectric material. When a voltage is applied across these plates, they accumulate and store electrical charge, which can be discharged when required, aiding in various electrical functions within circuits.　　Ceramic Capacitors　　Characteristics:　　Ceramic capacitors are renowned for their reliability, stability, and an extensive range of capacitance values. These capacitors utilize ceramic materials with a metal layer serving as the electrodes. They are available in diverse shapes and sizes, encompassing both surface-mount (SMD) and through-hole configurations.　　Advantages:　　Low ESR (Equivalent Series Resistance): Ceramic capacitors are known for their low ESR, enabling swift responses to voltage fluctuations and changes.　　High Frequency Response: Their minimal parasitic effects make ceramic capacitors highly suitable for high-frequency applications.　　Stability and Temperature Performance: They exhibit commendable stability across temperature variations, ensuring consistent performance.　　Limitations:　　Capacitance Variability: Ceramic capacitors may demonstrate significant variations in capacitance concerning voltage and temperature fluctuations.　　Piezoelectric Effect: Certain types of ceramic capacitors exhibit the piezoelectric effect, generating electrical charge under mechanical stress.　　Applications:　　Ceramic capacitors find extensive usage in high-frequency circuits, decoupling applications, signal filtering, and as crucial components in power supply bypass circuits.　　Electrolytic Capacitors　　Characteristics:　　Electrolytic capacitors employ an electrolyte as the dielectric material between their plates. They primarily exist in two major types: aluminum electrolytic and tantalum electrolytic capacitors.　　Advantages:　　High Capacitance: Electrolytic capacitors offer substantially higher capacitance values compared to ceramic capacitors, making them suitable for applications requiring significant energy storage.　　Cost-Effectiveness: They are generally more cost-effective for higher capacitance requirements.　　Polarity: Electrolytic capacitors are polarized, rendering them ideal for DC circuit applications.　　Limitations:　　Higher ESR: Electrolytic capacitors typically exhibit higher ESR compared to ceramic counterparts.　　Temperature and Lifespan Sensitivity: They are more susceptible to temperature variations and have a limited operational lifespan compared to ceramics.　　Applications:　　Owing to their higher capacitance values, electrolytic capacitors find applications in power supply filtering, audio systems, and situations demanding substantial energy storage capabilities.　　Ceramic capacitors vs. electrolytic capacitors – what are the differences?Capacitance Range:　　Ceramic capacitors offer a lower capacitance range in comparison to electrolytic capacitors. For high-frequency applications or instances necessitating low ESR, ceramic capacitors are preferred. However, for applications requiring higher capacitance values, electrolytic capacitors become the go-to choice.　　Frequency Response:　　Ceramic capacitors exhibit remarkable performance in high-frequency applications due to their minimal parasitic effects and low ESR. Hence, they are particularly well-suited for RF circuits and high-speed digital designs. On the other hand, electrolytic capacitors, with higher ESR, are more adept in low-frequency applications.　　Size and Form Factor:　　Ceramic capacitors possess a smaller form factor and are available in compact surface-mount packages, making them ideal for space-constrained designs. In contrast, electrolytic capacitors are relatively larger and are commonly utilized in applications where space availability isn’t a limiting factor.　　Cost Considerations:　　Ceramic capacitors offer cost-effectiveness for lower capacitance values, while electrolytic capacitors provide cost advantages for applications requiring higher capacitance values, making cost a crucial factor in the selection process.　　ConclusionIn conclusion, while both ceramic and electrolytic capacitors exhibit distinct attributes and serve varied purposes, their selection profoundly impacts the performance and reliability of electronic circuits across diverse applications. The optimal choice hinges on an intricate understanding of specific application requirements, encompassing capacitance range, frequency response, size constraints, cost considerations, and voltage stability.
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