Electrolytic capacitors Product List and Ranking from 37 Manufacturers, Suppliers and Companies

Automotive Polymer Tantalum Capacitor "KO-CAP"

Introducing the high-performance automotive-grade series! Tape reel packaging compliant with EIA 481.

The "KO-CAP" is a polymer tantalum capacitor developed to provide high reliability and stability under harsh environmental conditions for automotive applications. This design and materials have been specially reinforced to achieve 1000 hours at 85°C/85% RH and comply with all AEC-Q200 certification tests. Additionally, it is manufactured in an ISO TS16949 certified factory and is subject to PPAP/PSW and change control. 【Features】 ■ Ultra-low ESR ■ AEC-Q200 certified ■ High reliability for up to 1000 hours under 85°C/85% RH load ■ Manufactured in a TS 16949 certified factory ■ Subject to PPAP/PSW and change management * An English version of the catalog is available for download. * For more details, please refer to the PDF materials or feel free to contact us.

Company：マウザーエレクトロニクス
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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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

Capacitor

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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 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 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] 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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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.
Price：Other

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Ultra-small high-capacity screw terminal aluminum electrolytic capacitor

It is a large-capacity aluminum electrolytic capacitor that contributes to miniaturization and high energy density.

This is a super compact, high-capacity screw terminal aluminum electrolytic capacitor, ideal for bank applications that require a large amount of energy instantaneously. ◆ The HCGW3 type offers up to 200% higher output compared to conventional VF types. - It is a top-level large-capacity aluminum electrolytic capacitor in the industry. - Utilizing our special anode foil and winding technology, we have achieved high storage capacity. ◆ With the industry's largest dimensions of φ121×283L, it reduces the number of units used. - The HCGWA type supports large capacities up to 400WV and 50,000μF. - By reducing the number of units used, it can lower the costs of associated components, wiring, and assembly. - It is also suitable for applications that require lightweight solutions, such as X-ray equipment for rounds. *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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Handbook Giveaway! '15 Case Studies on Causes and Countermeasures for Capacitor Failures'

We are offering a handbook that explains 15 cases of phenomena, causes, and countermeasures related to capacitor failures, complete with illustrations!

AICTech's capacitors apply strict quality control and safety standards in product design and manufacturing. However, it is difficult to achieve zero failures in capacitors with current technological standards. The handbook explains the phenomena and causes of capacitor failures, along with examples of countermeasures, illustrated with diagrams. [Contents (partial)] ■ Symptoms to look for in capacitors ■ How capacitors fail (failure modes and factors) ■ Phenomena and examples of failures, factors and countermeasures (15 selected examples included!) ■ Appendix: Basic knowledge of capacitors *If you would like a copy of the handbook, please request the materials or view the PDF data from the download.

Company：AIC tech Inc.
Price：Other

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Screw Terminal Type Aluminum Electrolytic Capacitor High Ripple Series VGLR

Supports up to 100A, ideal for applications that require high current.

The "VGLR type" is a screw terminal aluminum electrolytic capacitor that improves the allowable ripple current value by approximately 50% compared to the conventional VGL type. The operating temperature range is -40 to +105°C, and the rated voltage is 350 to 500V.DC. By adopting low ESR technology and newly developed special anode foil, along with a high heat dissipation structure, it is possible to utilize the ripple correction factor based on wind speed conditions. 【Features】 ■ 105°C - 5,000 hours rated ■ Compliant with RoHS Directive ■ High ripple handling product with approximately 50% improved allowable ripple current value compared to conventional types ■ New heat dissipation structure, low ESR technology, and newly developed anode foil adopted *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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High Ripple Capability Standalone Aluminum Electrolytic Capacitor 'ZR2 Type'

Adopts newly developed high-reliability electrolyte and special anode foil! Compliant with RoHS directive.

The "ZR2 type" is a board-mounted aluminum electrolytic capacitor that improves the allowable ripple current value by approximately 15% compared to the ZR type, which is designed for high ripple applications. The operating temperature range is -25 to +105°C. The rated voltage is 400, 450V.DC. It features a high heat dissipation structure with a pressure relief valve placed on the product's side, and it utilizes a newly developed high-reliability electrolyte and special anode foil. 【Features】 ■ 105°C - 3,000 hours rated ■ Compliant with RoHS directive ■ Approximately 15% improvement in allowable ripple current value compared to the ZR type, which is designed for high ripple applications ■ High heat dissipation structure with a pressure relief valve placed on the product's side ■ Utilizes a newly developed high-reliability electrolyte and special anode foil *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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[Information] Basic Knowledge of Capacitor Characteristics: Capacitance Edition

Understanding the characteristics correctly will also lead to safe usage!

In this document, we explain the basic knowledge of capacitor characteristics, incorporating examples and data. In "Capacitance (Main Text)," we discuss dielectrics, the rules for units and symbols of capacitance, and the range of capacitance covered by capacitors. In "About the Capacitance of Aluminum Electrolytic Capacitors," we introduce the structure of the elements and the changes in capacitance due to temperature, using diagrams and graphs. Please feel free to download and take a look. [Contents (Partial)] ■ Capacitance (Main Text) - What is capacitor capacitance? - About dielectrics - Rules for units and symbols of capacitance - Range of capacitance covered by capacitors - Characteristics and properties of capacitance (things to be careful about) *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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A guidebook on how to choose capacitors by learning from failures! Basic knowledge materials are currently being offered.

The capacitor is the key device in the circuit! An explanation about failures and lifespan that aligns with practical work [over 60 pages].

This document explains the basic properties, types, and characteristics of capacitors, as well as methods for extending their lifespan, using charts and diagrams. Based on the mechanisms of failure, it introduces how to select and use capacitors. Please download it and take a look. 【Contents (excerpt)】 ■ Failure modes and failure mechanisms (the difference between failure modes and failure mechanisms) ■ Lifetime estimation (basics of lifetime estimation / key points for estimating the lifetime of main capacitors) ■ Selection and usage (design margins and derating / variation in characteristics)

Company：AIC tech Inc.
Price：Other

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Electrolytic capacitors Product List and Ranking from 37 Manufacturers, Suppliers and Companies

Electrolytic capacitors Manufacturer, Suppliers and Company Rankings

Electrolytic capacitors Product ranking