Document Number: 93581

For technical questions, contact: ind-modules@vishay.com

www.vishay.com

Revision: 30-Oct-08

3

VSK.250, VSK.270, VSK.320 Series

Standard Recovery Diodes, 250 to 320 A

Vishay High Power Products

Note

THERMAL AND MECHANICAL SPECIFICATIONS

PARAMETER

SYMBOL

TEST CONDITIONS

VALUES

UNITS

VSK.250 VSK.270 VSK.320

Maximum junction operating and storage

temperature range

- 40 to 150

°C

Maximum thermal resistance,

junction to case per junction

DC operation

0.16

0.125

K/W

Maximum resistance, case to heatsink

per module

Mounting surface flat, smooth and greased

0.035

Mounting torque ± 10 %

MAP to heatsink

A mounting compound is recommended

and the torque should be rechecked

after a period of about 3 hours to allow for

the spread of the compound.

4 to 6

Nm

busbar to MAP

8 to 10

Approximate weight

800

g

30

oz.

ΔR CONDUCTION PER JUNCTION

DEVICE

SINUSOIDAL CONDUCTION

RECTANGULAR CONDUCTION

UNITS

180°

120°

90°

60°

30°

180°

120°

90°

60°

30°

VSK.250-

0.009

0.010

0.014

0.020

0.032

0.007

0.011

0.015

0.021

0.033

K/W

VSK.270-

0.008

0.012

0.014

0.020

0.032

0.007

0.011

0.015

0.020

0.033

VSK.320-

0.008

0.010

0.013

0.020

0.032

0.007

0.011

0.015

0.020

0.033