Product News October 2, 2014

NICHICON has just developed the EJ Series of DC-filtering cylindrical film capacitors, mainly for use in the automotive, industrial equipment and environmental sectors.

The EJ Series will be on display at the CEATEC JAPAN 2014 exhibition to be held at Makuhari Messe October 7–11 (Tuesday–Saturday).

Overview, Background of Development

NICHICON developed this series to meet the market need for DC-filtering/smoothing capacitors which offer higher performance (smaller, capable of performing in low-temperature as well as hot and humid environments, etc.) in the growing automotive, industrial and environmental sectors.

Main Features

By developing an even thinner vapor-deposited film and improving the component storage efficiency, NICHICON has achieved a 40% reduction in size compared to its earlier EU Series product. In addition, the use of resin-molded case-less construction makes this capacitor capable of performing in both low-temperature (-40°C) and high-temperature/high-humidity (85°C, 85% RH, 1000h) environments.

Safety is also enhanced with the adoption of a safety mechanism in the vapor-deposited film, which also increases the lifespan of the product. Finally, this product is composed of environmentally friendly materials.

1.Compact (40% smaller than NICHICON’s previous comparable product)
2.Performs in both low-temperature (-40°C) and high-temperature/high-humidity (85°C, 85% RH, 1000h) environments
3.Resin-mold type with safety mechanism
4.Maintenance-free (long life, high reliability)
5.Environmentally friendly (RoHS Directive compliant, oil-less)

<Comparison> Characteristics comparison with earlier product, Volume Ratio Comparison at Same Rated Voltage

Characteristics comparison
with earlier product
EJ Series
(New Series)
EU Series
(Current Product)
Category temperature range -40°C to +75°C -25°C to +70°C
Humidity resistance 85°C, 85% RH, 1000h 40°C, 90%RH, 500h
Product size at
same rated voltage
EJ Series
(New Series)
EU Series
(Current Product)
1650V - 3200µF W460×D120×H220 mm W570×D119×H295 mm -40%

Main Specifications

Main specifications are as follows:

  • Uses

: DC filtering/smoothing
Automotive (Main circuit inverters, auxiliary power inverters, etc.)
Industrial equipment (Main circuit inverters, etc.)
Environmental (Wind power, solar power, etc.)

  • Types

: Customizable (please inquire for details)

  • Ambient temperature
    (Max temperature
    for internal components)

: -40 to +75°C(+85°C)

  • Voltage rating

: 750 to 3300VDC

  • Capacitance

: 100 to 18000μF

  • Product size

: Dependent upon customization

  • Samples

 Sample prep period: Available Now
Number of units: One or more can be ordered

  • Mass production

Time frame: Available Now

  • Produced by

 3-1, Yagura 2-chome, Kusatsu-shi, Shiga Prefecture
 (ISO 9001, ISO 14001 certified)

  • Addition of 500V Rated Product to LT and LV Series
  • Development of the EJ Series of DC Dry Film Capacitors

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