Capacitor Product List and Ranking from 105 Manufacturers, Suppliers and Companies

Electrolytic Polymer Aluminum Solid Electrolytic Capacitor "UPB Series"

The rated voltage range is 2.5V to 16V, guaranteed for 2,000 hours at 105°C! Achieves ultra-low ESR.

The "UPB Series" is a high ripple current conductive polymer aluminum solid electrolytic capacitor. It employs a conductive polymer electrolyte, achieving ultra-low ESR. It is guaranteed for 2,000 hours at 105°C, with a rated voltage range of 2.5V to 16V and a capacitance range of 100 to 2,200μF. 【Specifications (partial)】 ■ Operating temperature range: -55 to +105°C ■ Rated voltage range: 2.5V to 16V ■ Capacitance range: ±20% (at 120Hz/20°C) ■ Surge voltage: Rated voltage x 1.15 ■ Loss angle tangent (tanδ): 0.12 or less *For more details, please refer to the PDF document or feel free to contact us.

Company：ユニエレックス
Price：Other

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Conductive Polymer Aluminum Solid Electrolytic Capacitor "UPT Series"

The rated voltage range is 2.5V to 35V, with high ripple current! Uses conductive polymer electrolyte.

The "UPT Series" is a conductive polymer aluminum solid electrolytic capacitor guaranteed for 5,000 hours at 105°C. It employs high ripple current and conductive polymer electrolyte, achieving ultra-low ESR. The rated voltage range is 2.5V to 35V, and the capacitance range is 22 to 2,700μF. 【Specifications (partial)】 ■ Operating temperature range: -55 to +105°C ■ Rated voltage range: 2.5V to 35V ■ Capacitance range: ±20% (at 120Hz/20°C) ■ Surge voltage: Rated voltage x 1.15 ■ Loss tangent (tanδ): 0.10 or less *For more details, please refer to the PDF document or feel free to contact us.

Company：ユニエレックス
Price：Other

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San Electronics Industry Co., Ltd. Masuda Factory Business Introduction

Small power to the power of the world!

To respond to the rapid changes in the market environment and the advanced and diversified needs of our customers, we consistently prioritize quality in our manufacturing, providing products that satisfy customers worldwide. At the Masuda factory, we produce small, high-performance aluminum electrolytic capacitors primarily for automotive component manufacturers, utilizing state-of-the-art equipment and rigorous quality control. ■ Main Products Manufacturing of aluminum electrolytic capacitors (surface mount type and radial lead type) ■ Major Business Partners Koito Manufacturing Co., Ltd., JTEKT Corporation, Panasonic Corporation, Hitachi, Ltd., Kojima Press Industry Co., Ltd., Paloma Co., Ltd., Kyocera Corporation, Noritz Corporation, Omron Corporation, Omobio, Sumitomo Electric Industries, Valeo, Apple, Visteon, Marelli, Lear, HP, ZF

Company：しまね産業振興財団
Price：Other

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AC adapter 12V 8A maximum output 96W made in Japan electrolytic capacitor

We handle various types of AC adapters.

● 96W, ultra-compact AC adapter ● Obtained global safety certifications (PSE, UL, CE) ● Compliant with tracking resistance tests and glow wire flammability tests ● Despite its small size, it incorporates an insulated transformer ● Wide input compatibility (AC100–240V) ● Manufactured by major OEM companies for longer, reliable use ● Uses electrolytic capacitors from Japanese manufacturers (Nichicon, Rubycon) that are high-reliability products with a durability of over 4000 hours at 105°C.

Company：サクル
Price：Less than 10,000 yen

Switching Power Supply
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Polyester Film Capacitor "AMZ"

Highly miniaturized polyester film capacitor

We handle the polyester film capacitors "AMZ" from Nissei Electric Co., Ltd. Due to their compact and lightweight design, they are suitable for automatic insertion. They can be widely used in consumer electronics as well as industrial equipment. 【Specifications (excerpt)】 ■ Operating temperature range: -40 to +85℃ (+105℃) ■ Rated voltage: 50V, 100V, 250V, 400Vdc ■ Capacitance tolerance: ±5% (J), ±10% (K) ■ Dissipation factor: 0.008 or less (at 1kHz) ■ Insulation resistance: 30,000 MΩ or more *For more details, please download the PDF or feel free to contact us.

Company：ブラスト
Price：Other

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Plastic Film Capacitor 'HYX'

Using polyester film as a dielectric! A film capacitor with excellent performance.

The "HYX" is a plastic film capacitor that uses epoxy resin for its exterior, offering excellent heat resistance, moisture resistance, and solvent resistance. The thin film uniform exterior gives it a more rectangular shape, making it suitable for automatic insertion. Additionally, it uses polyester film as the dielectric, providing outstanding performance. 【Specifications】 ■ Operating temperature range: -40℃ to +85℃ ■ Rated voltage: 50VDC (1H) 100VDC (2A) ■ Rated capacitance range: 0.001 to 0.47μF ■ Rated capacitance tolerance: ±5% (J) ±10% (K) ■ Dissipation factor: 0.8% or less (at 1kHz 20℃) ■ Insulation resistance: 30,000MΩ or more ■ Dielectric strength: (Rated voltage) × 250% for 1 to 5 seconds ■ Exterior: Epoxy resin *For more details, please download the PDF or feel free to contact us.

Company：ハーバー電子
Price：Other

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WIMA film capacitor DC link capacitor

As a capacitor specialist, I will respond to your needs!

■WIMA【Manufacturer】■ A German manufacturer specializing in capacitors, established in 1948. It has four factories in Germany and has been producing exclusively in Germany since its founding. As a top manufacturer in the world, it develops and manufactures high-quality film capacitors for professional use in all areas of electronics. It is capable of producing standard products as well as custom products tailored to customer requests. ● Our company is an official distributor of WIMA and is expanding its sales network (there are only three official distributors in Japan). *If you have any questions, please feel free to contact us.

Company：富士電機産業
Price：Other

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WIMA GmbH & Co. Business Introduction

Film capacitor specialist! Solutions available to meet all customer needs.

Our affiliated company, WIMA GmbH & Co., specializes in the development and manufacturing of high-quality film capacitors for professional use in all areas of electronics. Since 1948, we have been exclusively producing in Germany as a private company. We manufacture and design not only standard products but also customized products that require experience and highly developed expertise. Therefore, solutions can be provided to meet all customer needs. [Business Description] ■ Development and manufacturing of high-quality film capacitors * You can download the English version of the catalog. * For more details, please refer to the PDF materials or feel free to contact us.

Company：SUPREME COMPONENTS INTERNATIONAL
Price：Other

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WIMA Company Profile - Plastic Film Capacitors

Design and manufacturing of customized products requiring experience and advanced expertise! Responding to various customer needs.

WIMA is a specialized manufacturer of plastic film capacitors designed and produced exclusively in Germany. Our goal is to maximize customer satisfaction in terms of quality, innovation, and service, with our strength lying in the design and manufacturing of customized products that require experience and advanced expertise. Therefore, we can provide solutions that meet the diverse needs of our customers. Our main customer groups include the automotive, consumer electronics, industrial electronics, and lighting industries. Among them are well-known and demanding customers such as Bosch and Siemens, to whom we supply products worldwide. [Business Description] ■ Design and production of plastic film capacitors * You can download the English version of the catalog. * For more details, please refer to the PDF materials or feel free to contact us.

Company：SUPREME COMPONENTS INTERNATIONAL
Price：Other

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FKP02

Strict tolerance of ±2.5%! CM2.5mm IMA plastic film capacitor.

We would like to introduce the 'FKP02' that we handle. It is one of the smallest plastic film capacitors in the world, with very low dielectric absorption. Additionally, it is compliant with RoHS2015/863/EU. Please feel free to contact us when you need it. 【Features】 ■ PCM 2.5mm ■ Strict tolerance of ±2.5% ■ Very low dielectric loss tangent ■ Change in negative capacitance ■ Very low dielectric absorption ■ Compliant with RoHS2015/863/EU * You can download the English version of the catalog. * For more details, please refer to the PDF materials or feel free to contact us.

Company：SUPREME COMPONENTS INTERNATIONAL
Price：Other

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Capacitor "GTO MKP"

High pulse reliability and high effective current-carrying capacity! Excellent mechanical stability with nearly infinite lifespan.

The "GTO MKP" is a capacitor designed for pulse applications with internal series connections. It features high pulse reliability, high effective current-carrying capacity, excellent self-healing characteristics, high shock and vibration resistance, outstanding mechanical stability, and an almost infinite lifespan. It is a converter device used in power generation, as well as in traction technologies such as train drive systems, hoists, and crane drive systems. 【Functions (partial)】 ■ Pulse duty structure ■ Self-healing ■ Cylindrical capacitor body with axial screw and screw connection sizes M6 or M8 ■ Internal series connection from 400VAC ■ Very low dielectric loss tangent *You can download the English version of the catalog. *For more details, please feel free to contact us.

Company：SUPREME COMPONENTS INTERNATIONAL
Price：Other

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Capacitor "SNUBBER FKP"

The plate is directly soldered to the scoop page! It has a high pulse duty.

The "SNUBBER FKP" is a capacitor with a very low dielectric loss tangent. It features a low inductance structure with end-face contact. It is available in a reliable contact configuration with a 4-pin version and a screw-type plate connection. It is equipped with functions such as internal series connection and negative capacitance change with temperature. 【Functions (partial)】 ■ High pulse duty ■ Self-repairing ■ Particularly reliable contact configuration: 4-pin version and screw-type plate connection ■ Internal series connection ■ Very low dielectric loss tangent *You can download the English version of the catalog. *For more details, please feel free to contact us.

Company：SUPREME COMPONENTS INTERNATIONAL
Price：Other

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Capacitor "POWERBLOCK"

Realizing high-speed supply of electrical energy! A product that actively maintains balance.

The "POWERBLOCK" is a dual-layer capacitor with a very high capacitance. It is a cascade-connected double-layer capacitor module for voltage support, enabling high-speed delivery of electrical energy. Additionally, the displayed configuration is a representative example, and it can be adapted in terms of capacitance, voltage, or dimensions at any time. 【Features (partial)】 ■ Modules with very high capacitance values ranging from 62F to 500F and rated voltages from 16VDC to 125VDC ■ Discharge current of up to 1900A ■ Maintenance-free ■ Series connection *You can download the English version of the catalog. *For more details, please feel free to contact us.

Company：SUPREME COMPONENTS INTERNATIONAL
Price：Other

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Capacitor "DC-LINK HC"

Safe contact configuration with screw-in plates! This product has very low dielectric absorption.

The "DC-LINK HC" is a metallized polypropylene (PP) capacitor for DC link applications. It features an internal safety disconnector with self-healing capabilities and a secure contact configuration with screwable plates. Additionally, a 105°C version is available upon request. 【Features (partial)】 ■ Very high volume/capacitance ratio ■ Internal safety disconnector with self-healing capabilities ■ Secure contact configuration with screwable plates ■ Dry structure that does not use electrolytic liquid or oil ■ Negative capacitance change with temperature *You can download the English version of the catalog. *For more details, please feel free to contact us.

Company：SUPREME COMPONENTS INTERNATIONAL
Price：Other

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Plastic film capacitor

All series are compliant with the RoHS directive! We introduce a variety of capacitors with different temperature ranges and rated voltages.

We would like to introduce our "Plastic Film Capacitors." We offer a wide range of products, including large-capacity cylindrical capacitors suitable for wind power generation, solar power generation, various inverters, chopper control, and charging/discharging, such as the "MLC type." Additionally, we have resin case capacitors suitable for DC link circuits and box-type capacitors in our lineup. 【Plastic Film Capacitor Lineup (Partial)】 ■ MLC type ■ MLC2 type ■ MLCA type ■ MKCP4 type ■ MKCP4T type *For more details, please refer to the PDF document or feel free to contact us.

Company：AIC tech Inc.
Price：Other

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Causes and Countermeasures for Capacitor Failure: What to Look For

To use the capacitor properly! We will introduce examples of failure phenomena, causes, and countermeasures.

AICTech's capacitors apply strict quality control and safety standards in the design and manufacturing of their products. However, with current technology levels, it is difficult to achieve zero failures in capacitors. When a failure occurs, the capacitor loses its basic functions of storing charge in direct current and eliminating noise and ripple current. In the worst case, there is a risk of ignition leading to a fire. If you notice conditions such as "cracks in the case" or "smoke coming out," it indicates a failure, and you must immediately disconnect the power and take appropriate action. The related catalog explains the phenomena and causes of failures, as well as examples of countermeasures, to help you use capacitors properly. Please take a moment to read it. *For more details, please refer to the PDF document or feel free to contact us.*

Company：AIC tech Inc.
Price：Other

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Causes and Countermeasures for Capacitor Failure: Open Failure

The main causes of open failure are mainly disconnection and significant increase in resistance! Introducing how capacitors fail.

When a capacitor fails open, the circuit becomes completely disconnected. For example, using a large-capacity capacitor in the power supply smoothing circuit can flatten a voltage waveform that resembles a large wave into a stable DC voltage. However, if the capacitor opens, high voltage may be applied to the circuit, potentially causing semiconductor failure. The main causes of open failure are disconnection or a significant increase in resistance. These often occur at the connection points between the capacitor's external terminals and the wiring. Since the external terminals, internal wiring, and structure vary depending on the type of capacitor, there are various types of open failures. In addition to usage of the capacitor, factors such as vibrations or shocks during transport, and the arrangement of equipment on the circuit board can also contribute to open failures. Our related catalog provides a wealth of information on various failure phenomena and cases, as well as causes and countermeasures. Please feel free to download and take a look. *For more details, please refer to the PDF materials or feel free to contact us.*

Company：AIC tech Inc.
Price：Other

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Causes and Countermeasures for Failure of Data Capacitors: Aluminum Electrolytic Capacitors

Failures occur due to rapid chemical reactions that are greatly influenced by environmental factors such as temperature and atmosphere!

Aluminum electrolytic capacitors are essential electronic components for power circuits and electronic circuits due to their small size and large capacity. Most aluminum electrolytic capacitors are polarized, so they are typically used in DC circuits. Their operating principle utilizes chemical reactions, and they are also known as chemical capacitors. As a result, the performance of aluminum electrolytic capacitors is greatly affected by environmental factors such as temperature and atmosphere, and failures can occur due to rapid chemical reactions. In the related catalog, we provide detailed explanations of failure cases of aluminum electrolytic capacitors and film capacitors, along with their causes, root causes, and countermeasures. Please take a look. *For more details, please refer to the PDF materials or feel free to contact us.*

Company：AIC tech Inc.
Price：Other

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Causes and Countermeasures for Capacitor Failures: Basic Knowledge of Capacitors

Aluminum electrolytic capacitors can be used in a wide range of DC circuits! Here is an introduction to the basics of capacitors.

Aluminum electrolytic capacitors are polarized capacitors with a limited lifespan that apply electrochemical operating principles, and they are also known as chemical capacitors. These capacitors have high volumetric efficiency (capacitance per unit volume), can achieve large capacitance values in the thousands of microfarads, can withstand large ripple currents, and have high reliability, making them suitable for a wide range of applications in DC circuits. On the other hand, it is necessary to consider their relatively high leakage current compared to other capacitors, a wide capacitance tolerance range of ±20%, high equivalent series resistance, and their finite lifespan when using them. Related catalogs provide detailed information on the features and structure of aluminum electrolytic capacitors and film capacitors. Please feel free to download and take a look. *For more details, please refer to the PDF materials or feel free to contact us.*

Company：AIC tech Inc.
Price：Other

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[Explanation of the cause of capacitor failure] It failed due to excessive ripple, and the electrolyte was ejected.

Please choose a capacitor considering the allowable ripple current, temperature, and frequency corrections!

We would like to introduce a case where an aluminum electrolytic capacitor used in the DC link of an inverter circuit overheated, causing the pressure relief valve to activate and the electrolyte to spray out from the capacitor. The cause was that a ripple current exceeding the allowable value flowed into the capacitor, causing it to overheat beyond its design specifications. Due to the overheating, the insulation deteriorated, leading to a short circuit, and the gas generated from the electrolyte increased the pressure inside the capacitor. The pressure relief valve activated, resulting in the electrolyte spraying out in aerosol form. **Countermeasures** - Confirm that the magnitude and waveform of the expected ripple current during the design phase match the specifications. - Select capacitors considering the allowable ripple current, temperature, and frequency corrections. *For more details, please refer to the PDF document or feel free to contact us.*

Company：AIC tech Inc.
Price：Other

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[Explanation of the Causes of Capacitor Failure] Capacitor capacity reduction in the charge and discharge circuit.

As a countermeasure, please use capacitors that are compatible with the charging and discharging circuit!

We will introduce a case where the capacity of aluminum electrolytic capacitors decreased in a circuit where the charging and discharging of capacitors, such as welding machines and strobe flashes, is frequently repeated. When charging and discharging aluminum electrolytic capacitors repeatedly, the following reactions continuously occur on the surface of the cathode foil. [During Charging] Gas generation due to the electrolysis of the electrolyte [During Discharging] The charge on the anode foil moves to the cathode foil, oxidizing the cathode surface As a result, internal pressure rises, leading to open failures when the pressure relief valve operates, or failures due to the decrease in capacity of the cathode foil, which reduces the capacitance of the capacitor. This phenomenon can occur not only during charging and discharging but also when a large voltage fluctuation is applied to the capacitor. [Countermeasures] ■ Use capacitors with specifications suitable for the charging and discharging circuit in circuits where frequent charging and discharging occurs. *For more details, please refer to the PDF document or feel free to contact us.

Company：AIC tech Inc.
Price：Other

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[Explanation of the cause of capacitor failure] The pressure valve does not operate, and steam is ejected from the grounding surface.

Review the requirements for the pressure valve to operate and the regulations for ensuring safety, and secure the necessary space!

In this case, snap-in aluminum electrolytic capacitors were used in the power supply equipment, and to make the equipment thinner, the heat sink was closely positioned against the top of the capacitor. During a test for abnormal conditions in the equipment, an intentional overvoltage was applied to the capacitor, which caused the pressure valve located on the top of the capacitor to fail to operate and resulted in overheating. Subsequently, vapor from the electrolyte burst out from the grounding surface of the capacitor. The cause was that the capacitor shorted due to the overvoltage, leading to current flow and overheating. The heat vaporized the electrolyte, causing pressure inside the capacitor to rise, and since the pressure valve did not operate, gas from the electrolyte burst out from the sealing part of the capacitor on the grounding surface, shorting the wiring pattern on the substrate and causing a spark that resulted in smoke. [Countermeasures] - Review the requirements for the pressure valve to operate and the regulations for ensuring safety, and secure the necessary space. - If sufficient space cannot be secured, a type with a pressure valve on the side of the capacitor is recommended. *For more details, please refer to the PDF document or feel free to contact us.

Company：AIC tech Inc.
Price：Other

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Explanation of the cause of capacitor failure: One of the capacitors connected in parallel has failed.

Revised the installation layout of the capacitor and changed the cooling method to reduce the effects of radiant heat!

We were using five aluminum electrolytic capacitors of the same rating and lot in parallel to eliminate ripple current, but I would like to introduce a case where one of these capacitors failed and the pressure relief valve was activated. Due to the constraints of the component layout on the circuit board, the failed capacitor was installed at a position away from the other capacitors. In that position, there were heat-generating components adjacent to it, and due to the radiant heat from these components, this capacitor was exposed to higher temperatures than the others. As a result, it experienced wear failure in a relatively short period, which caused the pressure relief valve to activate. [Countermeasures] - Review the mounting arrangement of the capacitors - Change the cooling method to mitigate the effects of radiant heat - It is recommended to use long-life capacitors that can handle high ripple currents *For more details, please refer to the PDF document or feel free to contact us.

Company：AIC tech Inc.
Price：Other

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[Explanation of the Causes of Capacitor Failure] The characteristics of electrolytic capacitors deteriorate at low temperatures.

The cause is the deterioration of the transient response performance of the output voltage, resulting in the inability to obtain the specified voltage! Here are some countermeasures.

We will introduce a case where a malfunction occurred during a low-temperature operation test of a DCDC converter, resulting in a decrease in output voltage. An aluminum electrolytic capacitor using electrolyte was used in the output section of the DCDC converter. Generally, at low temperatures below -20°C, the electrical conductivity of the electrolyte decreases and its viscosity increases, leading to a reduction in capacitance by several tens of percent, worsening frequency response, and increasing equivalent series resistance. As a result, it was determined that the transient response performance of the output voltage deteriorated, preventing the specified voltage from being achieved. [Countermeasures] - Confirm the capacitance, ESR, impedance, and frequency characteristics of the capacitor at low temperatures, and select an appropriate capacitor. *For more details, please refer to the PDF document or feel free to contact us.

Company：AIC tech Inc.
Price：Other

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[Explanation of the Cause of Capacitor Failure] The aluminum electrolytic capacitor sparked.

As a precaution, please discharge the accumulated charge before handling the capacitor!

During the replacement work of an aluminum electrolytic capacitor, when the terminals of the capacitor were connected with metal, a spark occurred, surprising the operator. When the capacitor is discharged, the charge stored in the electrodes disappears instantly, and the voltage between the terminals appears to be zero, but the dipole polarization of the dielectric is maintained. If the capacitor is opened with a short discharge time, the voltage is induced again at the electrodes due to the dipole polarization remaining in the dielectric. In other words, the charge stored in the dielectric seeps out and generates a re-induced voltage at the terminals. A spark occurred because the terminals were short-circuited with a conductor in this state. [Countermeasures] ■ Before handling the capacitor, connect a resistor of about 100Ω to 1kΩ between the terminals of the capacitor to discharge the accumulated charge. *For more details, please refer to the PDF document or feel free to contact us.

Company：AIC tech Inc.
Price：Other

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[Explanation of the Cause of Capacitor Failure] An electrolytic capacitor installed horizontally has burst.

A structure that eliminates the filler material and fixes the element with ribs has been adopted! The installation method has been changed to be at the "12 o'clock position"!

We would like to introduce a case where a horizontally mounted screw terminal aluminum electrolytic capacitor failed and the sealing part burst. The failed screw terminal aluminum electrolytic capacitor was mounted horizontally with the pressure relief valve positioned at the "6 o'clock" direction. When a capacitor deteriorates or fails, the temperature of the capacitor element rises rapidly, causing gas to be generated inside. This capacitor uses a filler material to secure the element, and as the element temperature increases, this filler material softens and flows, blocking the pressure relief valve. As a result, the smooth operation of the pressure relief valve was hindered, leading to a crack in the sealing part. [Countermeasures] - Change the mounting method so that the pressure relief valve of the aluminum electrolytic capacitor is positioned at the "12 o'clock" direction. - Adopt a structure that secures the element with ribs instead of using filler material. *For more details, please refer to the PDF document or feel free to contact us.

Company：AIC tech Inc.
Price：Other

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[Explanation of the Cause of Capacitor Failure] Electrolytic capacitors connected in series are shorted.

Increase the rated voltage of the capacitor to reduce the difference in leakage current, and also review the voltage divider resistance value!

We would like to introduce a case where a series-connected aluminum electrolytic capacitor short-circuited. When a capacitor with a high leakage current is included in a capacitor series, the voltage balance can be disrupted, causing the voltage to drift above the rated voltage, which may lead to the capacitor short-circuiting. For this reason, it is recommended to connect resistors (voltage divider resistors) in parallel with each individual capacitor when connecting capacitors in series. However, in this case, the leakage resistances of the individual capacitors varied significantly, causing the voltage divider resistors to not function properly. 【Countermeasures】 - To achieve a uniform voltage distribution across the series-connected individual capacitors, increase the rated voltage of the capacitors to reduce the disparity in leakage currents, and review the values of the voltage divider resistors. - Use capacitors from the same manufacturing lot to align the behavior of leakage currents against temperature changes and voltage fluctuations. - This can help stabilize the voltage division. *For more details, please refer to the PDF document or feel free to contact us.

Company：AIC tech Inc.
Price：Other

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[Explanation of the Cause of Capacitor Failure] Capacity loss occurred, and then it became open.

As a countermeasure, please ensure that the actual current applied is below the allowable value!

When the foil electrode type film capacitor was changed to a vapor-deposited electrode type film capacitor with the same rating, the capacitor failed open. Even with the same rating, the vapor-deposited electrode type is set to have a lower pulse current tolerance than the foil electrode type. This is because the vapor-deposited electrode has a higher resistance and generates more heat than the foil electrode. When a steep pulse current or high-frequency current is applied to the vapor-deposited electrode type, the capacitor heats up, causing the dielectric film to thermally shrink, which damages the junction between the vapor-deposited electrode and the collector electrode (metal spraying), leading to an unstable connection. Ultimately, the connection between the two becomes disconnected and fails open, but when high voltage is applied, sparks may occur, potentially causing a fire. [Countermeasures] ■ Ensure that the actual applied current remains below the allowable value. *For more details, please refer to the PDF document or feel free to contact us.

Company：AIC tech Inc.
Price：Other

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[Explanation of the Causes of Capacitor Failure] A resin-coated capacitor ignited.

When applying an overcoat, please select the resin considering the thermal expansion coefficient of the substrate!

The lead wire film capacitor mounted on the substrate was coated with resin. The connection between the capacitor element and the lead wire sparked, causing the capacitor to ignite. The cause was that the coated resin repeatedly expanded and contracted, applying stress to the capacitor. As a result, the connection between the capacitor element and the lead wire experienced stress and delaminated, leading to a spark when voltage was applied, which caused the capacitor to ignite. [Countermeasures] ■ When applying an overcoat, select resin considering the thermal expansion coefficient of the substrate. * For more details, please refer to the PDF document or feel free to contact us.

Company：AIC tech Inc.
Price：Other

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Introduction to Capacitors: How Capacitors Work

Compact, high-capacity, high-voltage, and long-lasting! Capacitors have a simple yet very important role.

I will introduce the mechanism and function of a capacitor. The circuit symbol representing a capacitor consists of two parallel lines. This indicates that the capacitor is made up of two parallel conductive plates. The larger the surface area of the capacitor's electrode plates and the closer the distance between the two plates, the greater the capacity to store electricity. Additionally, the electrode plates are electrically separated by an insulating material, which gives the capacitor the ability to block direct current while storing electricity (capacitance). These materials are generally referred to as dielectrics. 【Functions of a Capacitor】 ■ Stores charge (electricity) ■ Does not allow direct current to pass, but allows alternating current to pass *For more details, please refer to the PDF document or feel free to contact us.

Company：AIC tech Inc.
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Capacitor Product List and Ranking from 105 Manufacturers, Suppliers and Companies | IPROS GMS

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