2SK741
Reverse Drain Current vs.
Source to Drain Voltage
10
Reverse Drain Current I
DR
(A)
Pulse Test
8
6
4
2
5 V, 10 V
V
GS
= 0, –5 V
0
0.4
0.8
1.2
1.6
2.0
Source to Drain Voltage V
SD
(V)
Normalized Transient Thermal Impedance
γ
S
(t)
Normalized Transient Thermal Impedance vs. Pulse Width
3
D=1
0.5
0.3
0.1
0.2
0.1
0.05
T
C
= 25°C
1.0
0.02
0.03
0.01
10
µ
tP
1
0.0
Sho
1
e
uls
θch–c
(t) =
γ
S
(t) ·
θch–c
θch–c
= 2.5°C/W, T
C
= 25°C
P
DM
PW
D=
T
PW
T
1m
10 m
Pulse Width PW (s)
100 m
1
10
100
µ
6
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