Product News May 18, 2015

Nichicon Corporation announces the development of the CH Series, chip-type aluminum electrolytic capacitors. Their high temperature resistance and low-temperature ESR specifications make them ideal for extending service life when used for in-vehicle applications. The CH Series is guaranteed for an industry high life of 2,000 hours at 125°C, and has an ESR of 6Ω after life testing. The CH Series will be displayed at Techno-Frontier 2015, held May 20 (Wednesday) to 22 (Friday) at the Makuhari Messe in Chiba Prefecture, Japan.

Development Background

There is a growing demand for chip-type capacitors, whose mounting efficiency in in-vehicle devices such as the ECU (engine control unit) and drive system peripheral ECUs help make for a more comfortable vehicle interior environment. There is an especially high demand for capacitors that can withstand a wide temperature range (-40°C to +125°C) and offer continuous low-ESR performance.
With the CH Series added to its lineup, Nichicon can not only respond to demands for high temperature resistance, a characteristic which contributes to a more comfortable vehicle interior; it can also contribute to more power-saving, longer-lasting equipment.

Main Features

The CH Series builds on Nichicon’s current technology, by adopting a new low-resistance electrolyte and an optimized internal structure that allow this series to achieve further improvements in low ESR characteristics over Nichicon’s current CZ Series (125°C low-ESR specification). With the development of the CH Series, electronic modules will be better able to withstand in-vehicle environments while also achieving better power savings and a longer service life. An life of 2,000 hours at 125°C guarantees that the CH Series achieves an ESR of 6Ω, (at -40°C/400kHz), the industry’s highest level.

Comparison at Same Rated Voltages (35V/47μF, φ6.3×7.7Lmm)

  ESR(Ω) ESR ratio
CH Series
(Newly developed series)
CZ Series
(Current series)
Initial ESR at 20°C 100kHz 0.3 0.45 ×0.67
Initial ESR at -40°C 100kHz 3 5 ×0.60
Post-test ESR at -40°C 400kHz* 6 40 ×0.15

* Life test: 125°C 2000hrs

Main Specifications

  • Rated voltage range

: 35V

  • Rated capacitance range

: 47 to 100μF

  • Product dimensions

: Φ6.3×7.7Lmm (one size only)

  • Endurance

: 2,000 hours at 125°C guaranteed

  • Samples

: Available now

  • Production capacity

: Available now; 2 million units/month

  • Production plant

: Nichicon (Iwate) Corporation
8-17-1, Kubo, Iwate-cho, Iwate-gun, Iwate-ken 028-4305 Japan
ISO 9001, ISO/TS 16949, ISO 14001 certified

  • CH Series of chip-type aluminum electrolytic capacitors, with industry’s highest level of specified ESR after endurance test
  • CH Series of chip-type aluminum electrolytic capacitors, with industry’s highest level of specified ESR after endurance test

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