2SK974 L , 2SK974 S
Reverse Drain Current vs.
Source to Drain Voltage
10
Reverse Drain Current I
DR
(A)
8
Pulse Test
6
10 V
15 V
4
5V
2
V
GS
= 0, –5 V
0
0.8
0.4
1.2
2.0
1.6
Source to Drain Voltage V
SD
(V)
Normalized Transient Thermal Impedance
γ
s (t)
Normalized Transient Thermal Impedance vs. Pulse Width
3
1.0
D=1
0.5
0.3
0.1
T
C
= 25°C
0.2
0.1
0.05
0.02
θ
ch
–c (t) =
γ
s
(t) ·
θ
ch
–c
θ
ch
–c = 6.25°C/W, T
C
= 25°C
P
DM
lse
0.03
0.01
10
µ
0.01
ot Pu
h
1S
PW
T
1m
10 m
Pulse Width PW (s)
100 m
1
D =PW
T
100µ
10
6
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