Owner manual
www.vishay.com For technical questions, contact: ind-modules@vishay.com
Document Number: 93581
10 Revision: 22-Apr-08
VSK.250, .270, .320 Series
Vishay High Power Products
Standard Recovery Diodes, 250 to 320 A
(MAGN-A-PAK
TM
Power Modules)
Fig. 29 - Forward Power Loss Characteristics
Fig. 30 - Maximum Non-Repetitive Surge Current
Fig. 31 - Maximum Non-Repetitive Surge Current
Fig. 32 - Forward Voltage Drop Characteristics
Fig. 33 - Thermal Impedance Z
thJC
Characteristics
0 25 50 75 100 125 150
0
.
0
4
K
/
W
0
.
0
5
K
/
W
0
.
0
6
K
/
W
0
.
1
2
K
/
W
0
.
3
K
/
W
0
.
6
K
/
W
Maximum Allowable Ambient Temperature (°C)
0.
0
3
K
/W
R
=
0
.
0
2
K
/
W
-
D
e
l
t
a
R
0
.
2
K
/
W
0
.
0
8
K
/
W
t
h
S
A
0
400
800
1200
1600
2000
2400
2800
0 200 400 600 800 1000
120°
(Rect)
Total Output Current (A)
M a x im u m To t a l Po w e r Lo ss ( W )
3 x VSK.320.. Series
Three Phase Bridge
Connected
T = 15 0 ° C
J
2000
3000
4000
5000
6000
7000
8000
9000
10000
110100
Peak Half Sine Wave Forward Current (A)
Number Of Equal Amplitude Half Cyc le Current Pulses (N)
VSK.320.. Se ries
Pe r Ju n c t io n
Initial T = 150°C
@ 60 Hz 0.0083 s
@ 50 Hz 0.0100 s
At Any Rated Load Condition And With
Rated V App lied Following Surge.
RRM
J
2000
3000
4000
5000
6000
7000
8000
9000
10000
0.01 0.1 1
Peak Half Sine Wave Forward Current (A)
Pulse Train Duration (s)
Maximum Non Repetitive Surge Current
Initia l T = 150°C
No Voltage Reapplied
Ra t e d V Re a p p l ie d
Versus Pulse Train Duration.
RRM
J
VSK.320.. Serie s
Pe r Ju n c t io n
100
1000
10000
0.5 1 1.5 2 2.5 3 3.5 4
T = 2 5 ° C
J
Instantaneous Forward Current (A)
In st a n t a n e o u s Fo rw a rd V o lt a g e (V )
VSK.320.. Series
Pe r Ju nc t i o n
T = 1 5 0 ° C
J
0.001
0.01
0.1
1
0.001 0.01 0.1 1 10 100
Square Wave Pulse Duration (s)
thJC
Transient T
hermal Imp eda nc e Z (K/ W)
VSK.320.. Series
Pe r Ju n c t io n
St e a d y St a t e V a l u e :
R = 0 . 45 K/ W
(DC Operation)
thJC