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New energy vehicle capacitor customization
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New energy vehicle capacitor customization

DC-LINK Capacitor

The capacitor has the advantages of low self-inductance, low impedance, long life, low capacity loss, good self-healing, high-current impact resistance, and fast charging and discharging speed. It is suitable for photovoltaic inverters, wind power converters, frequency converters, etc., and helps DC circuit filtering.

  • Film Metallized polypropylene film (Safety film) (ROHS)
  • Electrode Tinned copper sheet (ROHS)
  • Potting compound Flame retardant black epoxy (ROHS)
  • Housings Plastic Housing (ROHS)
Product parameter Contact us Data Sheet
product details

MKP-QB Series  

  

 

 

       

      Model

 

 

 

 450-1100V / 80-3000uF

 

 

 

 

 

 

Parameters

 

 

 Imax=150A（10Khz）

 AEC-Q200

Ls ≤ 10nH (1MHz）

 IEC61071:2017

 -40~105℃

 

      

 

      Features

 

 High ripple current capability high withstanding voltage capability

 

 Compact size, low ESL.

 

 Safety film design with self-healing properties.

 

 

 

Applications

 

 DC filiter circuits.

 

 Electric and hybrid passenger vehicles.

Operating voltage

The rated voltage indicated for the capacitor is the maximum DC voltage at which the capacitor can be operated continuously over the entire temperature range of the capacitor (-40°C to 85°C). Maximum DC voltage.

Operating current

Make sure that the ripple current and pulse current are within the permissible range when using the product. Otherwise, there is a risk of breaking the capacitor.

Capacitor charging and discharging

Since the capacitor charge/discharge current depends on the product of the capacitance and the rate of voltage rise, even low voltage discharging. Even for low voltage discharge, a large charge/discharge may occur instantaneously, which may result in damage to the performance of the capacitor, e.g. short circuit or open circuit. When charging and discharging, please connect current limiting resistors in series according to GB/T2693 to limit the charging and discharging current to the specified level.
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Flame retardancy

Despite the use of fire-resistant epoxy resin or plastic shells as fire-retardant materials in the outer package of film capacitors, external. Continuous high temperature or flame can still deform the capacitor core and cause rupture of the outer package, resulting in the capacitor core melting or burns.

Storage environment requirements

● Humidity, dust, acid, etc. will have a deteriorating effect on capacitor electrodes and must be paid attention to.

● Especially avoid high temperature and humid places, the storage temperature should not exceed 35℃, humidity should not exceed 80%RH, and the capacitors should not be directly exposed to water or moisture to avoid water intrusion and damage.

● Can not be directly exposed to water or moisture, so as to avoid moisture intrusion and damage to the capacitor.

● Avoid drastic temperature changes, direct sunlight and corrosive gases.

● For capacitors that have been stored for more than one year, please check the electrical performance of the capacitors before using them again.

Humming sound due to film vibration

● The humming sound of a capacitor is due to the vibration of the capacitor film caused by the Coulomb force of the two opposite electrodes.

● The more serious the voltage waveform and frequency distortion through the capacitor, the greater the humming sound produced. But this hum.

● The humming sound will not cause any damage to the capacitor.

Installation

The terminal block should not be twisted or bent in any way to avoid breakage or other phenomena. Please check the appearance and electrical performance of the capacitor and make sure there is no damage before reuse. Please check the appearance and electrical performance of the capacitor and make sure there is no damage before reuse.

Special Precautions

Despite the safety design of the capacitors, the insulation of the capacitors may be damaged if they are subjected to overvoltage and overcurrent or abnormally high temperatures, or at the end of their product life.

● The insulation of the capacitor may be damaged when it is subjected to overvoltage and overcurrent or abnormally high temperature or at the end of its life. Therefore, if smoke or fire occurs during the operation of the capacitor, disconnect it immediately.

● When smoke or fire occurs during operation of the capacitor, the power supply should be disconnected immediately to avoid accidents.

Tests

Unless otherwise specified, all tests and measurements shall be carried out in accordance with the test standards specified in IEC 60068-1:1998, 5.3.
Atmospheric conditions.
Temperature: 15°C to 35°C;
Corresponding humidity: 25% to 75%;
Barometric pressure: 86kPa to 106kPa.
Prior to measurement, the capacitor shall be stored at the measurement temperature for a sufficient period of time to allow the entire capacitor to reach this temperature.
Life curve VS hot spot temperature VS voltage
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