MIL-PRF-19500/441K
4.4.3 Group C inspection. Group C inspection shall be conducted in accordance with the conditions specified for
subgroup testing in table E-VII of MIL-PRF-19500, and 4.4.3.1 (JANS), and 4.4.3.2 (JAN, JANTX, and JANTXV)
herein for group C testing. Electrical measurements (end-points) shall be as specified in table I, subgroup 2. Delta
requirements shall be in accordance with table II herein.
4.4.3.1 Group C inspection, table E-VII (JANS only) of MIL-PRF-19500.
Subgroup
Method
Conditions
C2
2036
Test condition A, weight = 3 lbs, t = 15 s, not applicable to 2N3740U4 and 2N3741U4.
Thermal resistance; see 4.3.3, RθJC = 7°C/W for 2N3740, 2N3741; RθJC = 6°C/W for
C5
3131
2N3740U4, 2N3741U4.
6,000 cycles, tON = tOFF = 3 minutes, PD(ON) = PD max rated in accordance with 1.3;
C6
1037
PD(OFF) = 0.
4.4.3.2 Group C inspection, table E-VII (JAN, JANTX, and JANTXV only) of MIL-PRF-19500.
Subgroup
Method
Conditions
C2
2036
Test condition A, weight = 3 lbs, t = 15 s, not applicable to 2N3740U4 and 2N3741U4.
Thermal resistance; see 4.3.3, RθJC = 7°C/W for 2N3740, 2N3741; RθJC = 6°C/W for
C5
3131
2N3740U4, 2N3741U4.
C6
Not applicable.
4.4.3.3 Group C inspection sample selection. Samples for subgroups in group C shall be chosen at random from
any lot containing the intended package type and lead finish procured to the same specification which is submitted to
and passes table I tests for conformance inspection. Testing of a group using a single device type enclosed in the
intended package type shall be considered as complying with the requirements for that subgroup.
* 4.4.4 Group D inspection. Conformance inspection for hardness assured JANS and JANKC types shall include
the group D tests specified in table III herein. These tests shall be performed as required in accordance with
MIL-PRF-19500 and method 1019 of MIL-STD-750, for total ionizing dose or method 1017 of MIL-STD-750 for
neutron fluence as applicable (see 6.2 herein), except group D, subgroup 2 may be performed separate from other
subgroups. Group D inspection may also be performed ahead of the screening lot using die selected in accordance
with MIL-PRF-19500 and related documents. Alternate package options may also be substituted for the testing
provided there is no adverse effect to the fluence profile.
4.4.5 Group E inspection. Group E inspection shall be conducted in accordance with the conditions specified for
subgroup testing in table E-IX of MIL-PRF-19500 and as specified herein. Electrical measurements (end-points) shall
be in accordance with the applicable steps of table I, subgroup 2. Delta requirements shall be in accordance with
table II herein.
4.5 Methods of inspection. Methods of inspection shall be as specified in the appropriate tables and as follows.
4.5.1 Pulse measurements. Conditions for pulse measurement shall be as specified in section 4 of MIL-STD-750.
4.5.2 Inspection conditions. Unless otherwise specified, all inspections shall be conducted at a case temperature of
+25°C ±3°C.
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