MIL-PRF-19500/347B
TABLE I. Group A inspection.
Inspection 1/
Symbol
Unit
MIL-STD-750
Limits
Method
Conditions
Min
Max
Subgroup 1
2071
Visual and mechanical
examination
Subgroup 2
°C/W
See 4.3.2
3131
Thermal impedance
ZθJX
Collector to emitter
3011
Bias condition D, IC = 10 mA dc;
V(BR)CEO
breakdown voltage
pulsed (see 4.5.1)
V dc
2N3253, S
40
V dc
2N3444, S
50
µA dc
Collector to base
3036
Bias condition D;
ICBO1
10
cutoff current
2N3253, S
VCB = 75 V dc
2N3444, S
VCB = 80 V dc
µA dc
Emitter to base voltage
3061
Bias condition D;
IEBO
10
cutoff current
VEB = 5 V dc
µA dc
Collector to emitter
3041
Bias condition A;
ICEX
0.5
cutoff current
VBE = 4 V dc; VCE = 60 V dc
µA dc
Collector to base
3036
Bias condition D; VCB = 60 V dc
ICBO2
0.5
cutoff current
Forward-current
3076
VCE = 1.0 V dc;
hFE1
transfer ratio
IC = 150 mA dc; pulsed
(see 4.5.1)
2N3253, S
25
2N3444, S
20
Forward-current
3076
VCE = 1.0 V dc; IC = 500 mA dc;
hFE2
transfer ratio
pulsed (see 4.5.1)
2N3253, S
25
75
2N3444, S
20
60
Forward-current
3076
VCE = 5 V dc;
hFE3
transfer ratio
IC = 1 mA dc;
pulsed (see 4.5.1)
2N3253, S
20
2N3444, S
15
Collector-emitter
3071
IC = 150 mA dc; IB = 15 mA dc;
VCE(SAT)1
0.35
V dc
saturated voltage
pulsed (see 4.5.1)
Collector-emitter
3071
IC = 500 mA dc; IB = 50 mA dc;
VCE(SAT)2
0.60
V dc
saturated voltage
pulsed (see 4.5.1)
Collector-emitter
3071
IC = 1.0 A dc; IB = 100 mA dc;
VCE(SAT)3
1.2
V dc
saturated voltage
pulsed (see 4.5.1)
See footnote at end of table.
7
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