MIL-PRF-19500/500E
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:
a. Qualification inspection (see 4.2).
b. Screening (see 4.3).
c. Conformance inspection (see 4.4, and tables I, II, III, and IV).
4.1.1 Sampling and inspection. Sampling and inspection shall be in accordance with MIL-PRF-19500, and as
specified herein except, lot accumulation shall be 6-months in lieu of 6-weeks.
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 IV
tests, the tests specified in table IV herein that were not performed in the prior revision shall be performed on the first
inspection lot of this revision to maintain qualification.
4.3 Screening (JANTX and JANTXV levels only). Screening shall be in accordance with 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.
Screen
Measurement
(see table E-IV of
MIL-PRF-19500)
JANTX and JANTXV levels
T(high) = +175C
3a
9, 10, 11
Not applicable
12
See 4.3.1
13
Interim electrical, delta, and table I, subgroups 2 and 3, electrical
parameters not applicable for this screen (performed in screen 12).
14
Required
15
For JANTXV devices only 100 percent inspection will be in
accordance with manufacturer's internal failure criteria.
* 4.3.1 Power burn-in (HTRB) and steady-state operation life test conditions. The test conditions and order of events
shall be as follows:
a. Pulse in accordance with 4.5.2.a herein, 20 times (screening and group B) and 100 times (group C) at TA =
+25C.
b. Read ID and V(BR) at TA = +25C, remove defective devices and record the number of failures.
c. Apply the working peak reverse voltage (VWM) (column 4 of table II herein) at TA = +125C as follows:
(1) For 96 hours (JANTX and JANTXV).
(2) For 340 hours (JANTX and JANTXV) for group B steady-state operation life test.
(3) For 1,000 hours for group C steady-state operation life test.
4
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business