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New MKP Film Capacitors for AC Applications

Saturday, April 21, 2018

The TDK Group recently introduced a new EPCOS MKP (metallized polypropylene) film capacitor family (B3275*), which is ideally suited for high ripple current AC applications. The new series of capacitors are rated for 250 VRMS, 275 VRMS, and 310 VRMS, respectively, and capacitance values ​​from 1 μF to 70 μF. Its outstanding highlights are its superior resistance to moisture and heat, which can be tested by the high temperature and humidity (THB) test (rated voltage, ambient temperature of 60°C, and continuous pressurization at 95% relative humidity for 1,000 hours).

The MKP (metallized polypropylene) film capacitors have a maximum operating temperature of 105°C: Both the housing and the epoxy encapsulation meet the UL94V-0 standard. According to the difference of product capacitance and voltage level, the pin pitch of the capacitor is 27.5mm, 37.5mm or 52.5mm respectively, and the 37.5mm and 52.5mm pitch can provide four-pin model. At a temperature of 70°C and a voltage of 90% of the rated voltage, the life expectancy of the capacitor can be as long as 60,000 hours. This series is mainly applied to converters, uninterruptible power supplies and output filters for variable speed drives.

main application

• Converter's output filter

• ups

• Controllable drive

Main features and advantages

• Super stability, can withstand harsh high temperature and high humidity (THB) test (rated voltage, ambient temperature is 60°C, continuous pressure work under relative humidity of 95% for 1,000 hours).

• When the temperature is 70°C and the voltage is 90% of the rated voltage, the life expectancy can exceed 60,000 hours.

 

Relevant TDK Film Capacitors series products

Part Number  Mfg Code   Stock (pcs)

 RoHS 

 Category

 Unit Price($) 

B32923C3474M

EPCOS (TDK)

10083

RoHS

CAP FILM 0.47UF 20% 305VAC RAD

$0.205

B32921C3103M

EPCOS (TDK)

51500

RoHS

$0.102

EPCOS (TDK)

164

RoHS

CAP FILM 0.033UF 5% 1.6KVDC RAD

$0.205

EPCOS (TDK)

150

RoHS

CAP FILM 0.47UF 10% 305VAC RAD

$0.218

Author:Brittany Antonia (The author of article owns the copyright.)