MIL-PRF-19500/437H
4.2 Qualification inspection. Qualification inspection shall be in accordance with MIL-PRF-19500 and as specified
herein.
4.2.1 Group E qualification. Group E inspection shall be performed for qualification or re-qualification only. In
case qualification was awarded to a prior revision of the specification sheet that did not request the performance of
table II tests, the tests specified in table II herein that were not performed in the prior revision shall be performed on
the first inspection lot of this revision to maintain qualification.
4.2.1.1 JANHC and JANKC devices. JANHC and JANKC devices shall be qualified in accordance with appendix
G, of MIL-PRF-19500 .
4.2.1.2 Sampling and inspection. Lot accumulation is 6 months in lieu of 6 weeks.
4.3 Screening (JANTX and JANTXV levels only). Screening shall be in accordance with appendix E, table E-IV of
MIL-PRF-19500 , and as specified herein. The following measurements shall be made in accordance with table I
herein. Devices that exceed the limits of table I herein shall not be acceptable.
Screening
Measurement
table E-IV of
MIL-PRF-19500
JANTX and JANTXV levels
3a
Temperature cycling
(1) 3c
Thermal impedance (see 4.3.2)
7a
Not applicable
7b
Optional
9
Not applicable
11
IR1 and VZ
12
See 4.3.3
ΔIR1 ≤ 100 percent of initial reading or 10 nA dc, whichever is greater;
(2) 13
ΔVZ ≤ ±2 percent of initial reading subgroup 2 of table I herein.
14a
Not applicable
(3) 14b
Required
15
Not required
16
Not required
(1) Thermal impedance may be performed any time after sealing provided temperature cycling is performed in
accordance with MIL-PRF-19500, screen 3 prior to this thermal test.
(2) PDA = 5 percent for screen 13, applies to ΔIR1 and ΔVZ. Thermal impedance (ZΘJX) is not required in
screen 13.
(3) For clear glass diodes, the hermetic seal (gross leak) may be performed at anytime after temperature
cycling.
4.3.1 Screening (JANHC and JANKC). Screening of JANHC and JANKC die shall be in accordance with
appendix G of MIL-PRF-19500 .
4.3.1.1 JAN testing. JAN level product will have temperature cycling and thermal impedance performed in
accordance with MIL-PRF-19500, JANTX screening level requirements.
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