Owner manual

Document Number: 93581 For technical questions, contact: [e-mail]
www.vishay.com
Revision: 22-Apr-08 3
VSK.250, .270, .320 Series
Standard Recovery Diodes, 250 to 320 A
(MAGN-A-PAK
TM
Power Modules)
Vishay High Power Products
Note
• The table above shows the increment of thermal resistance R
thJC
when devices operate at different conduction angles than DC
THERMAL AND MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS
VALUES
UNITS
VSK.250 VSK.270 VSK.320
Maximum junction operating and storage
temperature range
T
J
, T
Stg
- 40 to 150 °C
Maximum thermal resistance,
junction to case per junction
R
thJC
DC operation 0.16 0.125
K/W
Maximum resistance, case to heatsink
per module
R
thCS
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
AT T
J
MAXIMUM
RECTANGULAR CONDUCTION
AT T
J
MAXIMUM
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/WVSK.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