Document Number: 26013

For technical questions, contact: dc-film@vishay.com

www.vishay.com

Revision: 08-Dec-08

25

MKT 1813

DC Film Capacitor

MKT Axial Type

Vishay Roederstein

5. Since in circuits used at voltages over 280 V peak-to-peak the risk for an intrinsically active flammability after a capacitor

breakdown (short circuit) increases, it is recommended that the power to the component is limited to 100 times the values

mentioned in the table: “Heat conductivity”

6. When using these capacitors as across-the-line capacitor in the input filter for mains applications or as series connected with

an impedance to the mains the applicant must guarantee that the following conditions are fulfilled in any case (spikes and

surge voltages from the mains included).

Voltage Conditions for 6 Above

EXAMPLE

C = 3300 nF - 100 V used for the voltage signal shown in next figure.

The ambient temperature is 35 °C

Checking conditions:

2. The peak-to-peak voltage 80 V is lower than 2

√2 x 63 Vac = 178 U

P-P

3. The voltage pulse slope (dU/dt) = 80 V/500 µs = 0.16 V/µs

This is lower than 8 V/µs (see specific reference data for each version)

4. The dissipated power is 60 mW as calculated with fourier terms

This is lower than 15 °C temperature rise at 35 °C, according figure max. allowed component temperature rise

5. Not applicable

6. Not applicable

Voltage Signal

ALLOWED VOLTAGES

Maximum continuous RMS voltage

Maximum temperature RMS-overvoltage (< 24 h)

Voltage

U

P

Time

U

P-P

T

1

T

2