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MIL-PRF-19500-124 Semiconductor Device, Diode, Silicon, Voltage Regulator Types 1N2970B Through 1N2977B, 1N2979B, 1N2980B, 1N2982B, 1N2984B Through 1N2986B, 1N2988B Through 1N2993B, 1N2995B, 1N2997B, 1N2999B Through 1N3005B, 1N3007B, 1N3008B, 1N3009B, 1N3011B, 1N3012B, 1N3014B, 1N3015B, Plus Rb Types, 1N3993A Through 1N3998A, And Ra Types, Jan, Jantx, Jantxv, And JansThis specification covers the performance requirements for 10 watt, silicon voltage regulator diodes: A and B type \(standard polarity\); RA and RB type \(reverse polarity\). Four levels of product assurance are provided for each device type as specified in MIL–PRF–19500.

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MIL­PRF­19500/124L
4.4.2 Group B inspection. Group B inspection shall be conducted in accordance with the conditions specified for
subgroup testing in table E­VIa (JANS) and table E­VIb (JAN, JANTX, and JANTXV), of MIL­PRF­19500, and as
follows. Electrical measurements (end-points) and delta requirements shall be in accordance with the applicable
steps of table II herein.
4.4.2.1 Product quality level JANS (table E­VIa of MIL­PRF­19500).
Subgroup
Method
Condition
Dwell time = 10 ±1 s; immersion to cover flat portion of terminal only.
B2
2026
2,000 cycles. See 4.5.6 herein.
B4
1037
IZ = column 15 of table III herein for 96 hours, TA = +125°C or adjusted, as required,
B5
1027
to give an average lot TJ = +225°C.
Option 1 ­ TJ = +200°C, 336 hours.
Option 2 ­ TJ = +175°C, 1,000 hours.
RΘJC = 12°C/W maximum, TA = +25°C. For purposes of this test "junction to case"
B6
4081
shall be used in lieu of "junction to lead" and "RΘJC" shall be used in lieu of "RΘJL".
The case shall be the reference point for calculation of junction to case thermal
resistance (RΘJC). The mounting arrangement shall be with heat sink to case.
4.4.2.2 Product quality levels JAN, JANTX and JANTXV (table E­VIb of MIL­PRF­19500).
Subgroup
Method
Condition
B2
4066
IZSM = column 10 of table III herein.
B3
1027
IZ = column 15 of table III herein, adjust TA, mounting, or both, to achieve
TC = 150ºC ±5ºC.
2,000 cycles. See 4.5.6 herein (separate samples may be used).
B3
1037
RΘJC = 12°C/W maximum; TA = +25°C. For purposes of this test, "junction to case"
B5
4081
shall be used in lieu of "junction to lead" and "RΘJC" shall be used in lieu of
"RΘJL".The case shall be the reference point for calculation of junction to case
thermal resistance (RΘJC). The mounting arrangement shall be with heat sink to
case.
TA = +200°C.
B6
1032
5



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