MJ423
10
100 µs
1.0
0.1
0.01
1.0
TJ = 150°C
SECONDARY BREAKDOWN LIMITATION
dc
THERMAL LIMITATION AT TC = 25°C
(BASE-EMITTER DISSIPATION IS
PERCEPTIBLE ABOVE IC ≈ 5 AMP)
The Safe Operating Area Curves indi-
cate IC – VCE limits below which the de-
vice will not enter secondary breakdown.
Collector load lines for specific circuits
must fall within the applicable Safe Area to
avoid causing a catastrophic failure. To in-
sure operation below the maximum TJ,
power temperature derating must be ob-
served for both steady state and pulse
power conditions.
1.0 ms
2.0 4.0 6.0 10 20 40 60 100 200 400
VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS)
1000
Figure 1. Active–Region Safe–Operating Area
125
100
75
50
25
0
0 20 40 60 80 100 120 140 160 180 200
TC, CASE TEMPERATURE (°C)
Figure 2. Power–Temperature Derating Curve
500
400
50 mHy
300
200
VCEO(sus) IS ACCEPTABLE WHEN
VCE ≥ 325 V AT IC = 100 mA
100
Hg RELAY
+
6.0 V
-
X
200 Ω
TO SCOPE
+
50 V
Y
-
0
0
100
200
300
400
500
VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS)
Figure 3. Sustaining Voltage Test Load Line
300 Ω
1.0 Ω
Figure 4. Sustaining Voltage Test Circuit
100
70
50
30
20
10
7.0
5.0
3.0
2.0
1.0
0.1
TJ = 100° C
VCE = 5.0 V
25°C
0.2 0.3 0.5 0.7 1.0 2.0 3.0
IC, COLLECTOR CURRENT (AMP)
Figure 5. Current Gain
5.0 7.0 10
10
7.0
5.0
3.0
2.0
1.0
0.7
0.5
0.3
0.2
0.1
0
TJ = 100° C
25°C
VCE = 10 V
0.5
1.0
1.5
2.0
2.5
VBE, BASE-EMITTER VOLTAGE (VOLTS)
Figure 6. Transconductance
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