MIL-PRF-19500/413F
* TABLE I. Group A inspection - Continued.
Unit
Symbol
Inspection 1/
MIL-STD-750
Limits
Min
Max
Method
Conditions
Subgroup 4 - Continued
|hfe|
VCE = 4 V dc, IC = 1.0 A dc
Magnitude of common
6
30
3306
f = 100 kHz
emitter small-signal
short-circuit forward-
current transfer ratio
hfe
40
3206
VCE = 10 V dc, IC = 1.0 A dc
Small-signal short-circuit
f = 1 kHz
forward-current transfer ratio
1,200
pF
VCB = 10 V dc, IE = 0,
Output capacitance
3236
Cobo
100 kHz ≤ f ≤ 1 MHz
(open circuit)
Subgroup 5
TC = +25°C, t = 1 s, 1 cycle,
Safe operating area
3051
(dc operation)
(see figure 3)
Test 1
IC = 30 A dc
VCE = 5 V dc
(2N3771 only)
IC = 3.75 A dc
Test 2
VCE = 40 V dc
(2N3771 only)
IC = 20 A dc
Test 3
VCE = 7.5 V dc
(2N3772 only)
IC = 2.5 A dc
Test 4
VCE = 60 V dc
(2N3772 only)
Load condition B, TC = +25°C,
Safe operating area
3053
duty cycle ≤ 10 percent, (vary
(clamped inductive)
pulse width to achieve IC),
Rs = 0.1Ω, (see figure 4)
RBB1 = 2Ω, VBB1 ≤ 14 V dc,
Test 1
RBB2 = 100Ω, VBB2 ≤ 1.5 V dc,
(2N3771 only)
IC = 30 A dc, VCC = 20 ±5 V dc,
RL ≤ .67Ω, L = 5 mH,
0.01 (Signal Transformer Co.
CH-30 or equivalent),
CR = 1N1186A, clamp voltage =
50 +0, -5 V dc, (device fails if
clamp voltage not reached)
See footnotes at end of table.
9
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