MIL-PRF-19500/501E
TABLE II. Groups B, C, and E delta measurements. 1/ 2/ 3/
Step
Inspection
Symbol
Limit
Unit
Method
Conditions
Min
Max
ĆhFE2
±40
1
Forward - current
3076
VCE = 3 V dc, IC = 6 A dc,
pulsed (see 4.5.1)
transfer ratio
percent
The delta measurements for table E-VIB (JAN, JANTX, and JANTXV) of MIL-PRF-19500 are subgroups
1/
3 and 6, see table II herein, step 1.
The delta measurements for table E-VII of MIL-PRF-19500 are subgroup 6, see table II herein, step 1.
2/
3/
The delta measurements for table E-IX of MIL-PRF-19500 are subgroup 1 and 2, see table II herein, step 1.
TABLE III. Group E inspection (all quality levels) - for qualification and re-qualification only.
Inspection
Sample
plan
Method
Conditions
Subgroup 1
45 devices
c=0
1051
500 cycles.
Temperature cycling
1071
Hermetic seal
Fine leak
Gross leak
Electrical measurements
Subgroup 2
45 devices
Test temperature = +125°C; VCB = 80 percent rated;
1048
c=0
Blocking life
T = 1,000 hours.
Electrical measurements
Subgroup 4
Sample size
N/A
Thermal impedance curves
See MIL-PRF-19500.
Subgroup 8
45 devices
c=0
Reverse stability
1033
Condition B.
11
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