NJL3281D (NPN) NJL1302D (PNP)
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6
Figure 11. Active Region Safe Operating Area
V
CE
, COLLECTOR−EMITTER VOLTAGE (VOLTS)
I
C
, COLLECTOR CURRENT (AMPS)
There are two limitations on the power handling ability o
a transistor; average junction temperature and secondar
breakdown. Safe operating area curves indicate I
C
− V
CE
limits of the transistor that must be observed for reliabl
operation; i.e., the transistor must not be subjected to greate
dissipation than the curves indicate.
The data of Figure 11 is based on T
J(pk)
= 150°C; T
C
i
variable depending on conditions. At high case temperature
thermal limitations will reduce the power than can be handle
to values less than the limitations imposed by secon
breakdown.
100
10
1.0
0.1
100101.0 1000
10 ms
50 ms
250 ms
1 sec
Figure 12. NJL1302D Typical Capacitance
V
R
, REVERSE VOLTAGE (VOLTS)
C, CAPACITANCE (pF)
Figure 13. NJL3281D Typical Capacitance
V
R
, REVERSE VOLTAGE (VOLTS)
C, CAPACITANCE (pF)
10000
1000
100
100101.00.1
10000
1000
100
100101.00.1
T
J
= 25°C
f
test
= 1 MHz
C
ib
C
ob
T
J
= 25°C
f
test
= 1 MHz
C
ib
C
ob
PNP NJL1302D NPN NJL3281D
1
0.01
80604020 200
V
R
, REVERSE VOLTAGE (VOLTS)
V
F
, VOLTAGE (VOLTS)
Figure 14. Typical Reverse Current
Figure 15. Typical Forward Voltage
0.0001
0.1
10
0
R
m
0.70.60.50.4 0.8
0.001
10
0.3
1
0.1
10.9
I
F
, FORWARD CURRENT (A)
T
J
= −25°C
T
J
= 100°C
T
J
= 25°C
−25°C
100°C
25°C
100 120
1
140 160 180
0.001
0.01
