MIL-PRF-19500/544H
TABLE III. Group E inspection (all quality levels) - for qualification only.
Inspection
Qualification
Method
Conditions
Subgroup 1
45 devices
c=0
1051
Test condition C, 500 cycles
Temperature cycling (air to
air)
Hermetic seal
Fine leak
1071
Gross leak
Electrical measurements
Subgroup 2
45 devices
c=0
1037
Intermittent life
VCB = 10 V dc, 6,000 cycles
Electrical measurements
Subgroup 4
See MIL-PRF-19500, table E-IX, group E, subgroup 4
Thermal impedance
Subgroup 5
Not applicable
Subgroup 8
45 devices
c=0
Reverse stability
1033
Condition B
TABLE IV. Groups B, C and E delta and electrical measurements. 1/ 2/ 3/ 4/
Step
Inspection
Symbol
Limits
Unit
Method
Conditions
Min
Max
±20 percent
ĆhFE2
1.
Forward - current
3076
IC = 2.5 A dc, VCE = 5 V dc, pulsed
transfer ratio
change from
(see 4.5.1)
initial reading
1/ The delta measurements for table E-VIA (JANS) of MIL-PRF-19500 are as follows: Subgroups 4 and 5, see table
IV herein, step 1.
2/ The delta measurements for 4.4.2.2 (JAN, JANTX and JANTXV) are as follows: All steps, see table IV herein,
step 1.
3/ The delta measurements for table E-VII of MIL-PRF-19500 are as follows: Subgroup 6, see table IV herein,
step 1.
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