C&H Technology 30PT100 - Manual (Page 5)

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4 Revision: 24-Jul-08
30PT100
Vishay High Power Products High Performance
Schottky Generation 5.0, 30 A
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
Fig. 7 - Maximum Non-Repetitive Surge Current
Note
(1) Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward power loss = I
F(AV)
x V
FM
at (I
F(AV)
/D) (see fig. 6);
Pd
REV
= Inverse power loss = V
R1
x I
R
(1 - D); I
R
at V
R1
= 80 % rated V
R
Average Forward Current - I F
(AV)
(A)
Allowable Case Temperature (°C)
0 5 10 15 20 25 30 35 40 45
145
150
155
160
165
170
175
180
DC
Square wave (D=0.50)
80% rated Vr applied
see note (1)
Average Forward Current - I F
(AV)
(A)
Average Power Loss - (Watts)
0 5 10 15 20 25 30 35 40 45
0
5
10
15
20
25
30
180°
120°
90°
60°
30°
DC
RMS Limit
Square Wave Pulse Duration - t
p
(microsec)
Non-Repetitive Surge Current - I
FSM
(A)
10 100 1000 10000
100
1000
10000