Production and sales of capacitors and electronic components

Shinyei Capacitor Co., Ltd.



Please refer to the specification and confirm circuit conditions when used, and consult with us for over loading issues or any unclear points. Since organic films are used as dielectric substance for capacitor, depending on circuit configuration, breakage due to the overvoltage or overcurrent may lead to smoking and/or ignition.

Please follow these safety instructions when using our products. We shall have no liability for any damage resulting from improper use of our products.

All descriptions in catalogue are subject to change without prior notice. Data described in catalogue are central values that shall not insure any performance of all ranged capacitors.

Ordering information

Please refer to the followings when ordering

  1. Working voltage (DC or AC)
  2. Nominal capacitance and acceptable tolerance
  3. Operating temperature range
  4. Application type
  5. Application or circuit diagram(resonance,smoothing,sunbber,etc.)
  6. Operating conditions(voltage,current,frequency,waveform,etc.)
  7. Dimensions,lead spacing (forming style,taping,etc.)
  8. Soldering conditions
  9. Operating environmental conditions

Capacitor type selection

Choose the capacitor best suited for the operating conditions. Improper choice may facilitate degradation of capacitor's characteristic.

Please consult us or local dealership if you use products designed for specific purposes for unauthorized purposes.

Confirmation of specifications

Please check the operating and installation environment and use within the rated performance in the specifications.

Applied voltage

  1. Voltage shall be applied to capacitor(s) so that peak values of surge voltage and ripple voltage (DC voltage + AC peak value) will not exceed the rated voltage, unless specified. Consult us or your local dealership if the above-mentioned values exceed rated voltage. When it is used under the conditions exceeding the rated temperature (maximum temperature under the rated voltage), derate the rated voltage acco
  2. DC rated capacitors that the specifications allows to be used for AC circuit or pulse circuit, should be used in accordance with the specified rating.
  3. Consult us or your local dealership when connecting 2 or more capacitors in series.

Category temperature range

  1. Use capacitor(s) within the range of specified category temperature. Pay attention to the difference between the storage temperature and operating temperature in some type of capacitors.
  2. Do not use capacitor(s) in adverse environment where sudden temperature changes occur even if it is within the range of the specified operating temperature.
  3. Do not use capacitor(s) at high humidity to avoid dews on capacitor(s).

Acceptable current

  1. Do not use capacitor(s) under the conditions exceeding permissible current. There are differences depending on material and design even with similar shapes. Moreover acceptable current varies with waveform or frequency of applied pulse. Consult us or your local dealership for further information.
  2. Ambient temperature also imposes limitations on permissible. Check "self-temperature-rise" and ambient temperature.

For charge and discharge

As sudden charge or discharge exceeding the specified conditions may lead to degradation and/or breakage of capacitor (s), please do not execute the sudden charge or discharge.


Hum produced by capacitors is due to mechanical vibration of the film caused by the coulomb force which exists between electrodes of opposite polarity. A louder hum is produced when applied voltage waveform has distortion, and/or higher frequency component, etc.Although hum does not spoil characteristics of capacitors, please consult us or your local dealership incase that Hum (Buzz) become a problem.


  1. Mounting (capacitors with lead wire terminal)
    • Care must be taken when attaching lead wire terminal of capacitor into printed circuit board so that pulling and/or torsion force exceeding the specified force will not be applied to it
    • When large-sized capacitor(s) are used or when capacitor(s) are mounted on printed circuit board which is subject to vibration, the body must be secured by jigs or resin that will not adversely affect capacitor performance.
    • Capacitor(s) must be mounted in the manner in which they make no contact with other parts.(Capacitor(s) may suffer any damage if other parts have high voltage or are heat-producing.)
  2. Soldering

     When soldering capacitors, observe the specified requirements.

    【Soldering conditions】
    • Flow soldering conditions…Pre-heating:120℃、Less than 90sec. / Solder conditions:260℃、Less than 7sec
    • Soldering iron…Soldering bit temperature 380℃ Less than 5sec.

    ※In either case, please make sure that the temperature of the base of the lead wire does not exceed 125℃ .

  3. Washing
    • When washing printed circuit board with solvent in order to remove flux, observe the specified requirements.
    • Wash circuit board immediately after soldering is completed.
    • Should capacitors produce fire, smoke or objectionable odor during the operation, disconnect them from power immediately.

Precautions during operation

  1. Do not touch capacitor(s) with your bare hands.
  2. Do not make a short circuit in terminals of a capacitor.Do not splash any conductive solvent, such as acid and alkaline solution, on capacitors.
  3. Check installation environment for the set in which capacitor(s) are mounted.
  4. Should capacitors produce fire, smoke or objectionable odor during the operation, disconnect them from power immediately.


  1. Storage requirements
    • Storage location shall be indoor with the temperature of-10 to 40 ℃ and with the relative humidity of 75 % or less. Do not subject capacitor(s) to the atmosphere in which sudden temperature changes, direct sunlight and/or any corrosive gas(such as hydrogen sulfide, sulfide, sulfur dioxide, chlorine and ammonia gas) exists.
    • Store capacitor(s) in the shipping carton so that no load will be imposed on them. Capacitor(s) for which special storage manners are required should be stored in such manners.
  2. Handling
    • Do not subject capacitor(s) to excessive vibration, shock (such as drop) and/or pressure.
    • Do not subject lead wire(s) to excessive force (including bending and pulling).
    • Do not use if the capacitor is dropped, its characteristics may be damaged.


As capasitors are classified into industrial waste, consult your local professionals specialized in industrial wastes on disposal of capacitor(s).

Other notes

For details, please refer to "Guidelines for Precautions in the Use of Fixed Plastic Film Capacitors for Electronic Equipment" (JEITA RCR-2350) by Japan Electronics and Information Technology Industries Association.