MIL-DTL-23971/5D
REQUIREMENTS:
Design and construction: See figures 1 and 2.
Case: Hermetically sealed.
Material: Cold rolled steel or iron nickel alloy in accordance with SAE-AMS-I-23011, class I (KOVAR).
Finish: Gold electroplated per SAE-AMS-2422 or ASTM-B488, type III, class 2, over nickel strike .00002-
.00005 thick.
Cover: Cold rolled steel or iron nickel alloy in accordance with SAE-AMS-I-23011, class I (KOVAR).
Finish: Electroless nickel per SAE-AMS2404, class I, 0.00012 inch thick.
Terminals: Iron nickel alloy in accordance with SAE-AMS-I-23011, class I (KOVAR). Gold-plated in accordance
with SAE-AMS-2422 or ASTM-B488, type III, class 2, over nickel strike .00002-.00005 thick.
Nickel is to be used in this component only if specification cannot be met using alternate material means.
Electrical characteristics: See table I.
Weight: See table I.
Ambient temperature: See table I.
Environmental tests: In accordance with MIL-DTL-23971 except:
Dash No. 01:
Barometric pressure: Not applicable.
Thermal shock: In accordance with method 107 of MIL-STD-202, test condition A (but using upper
temperature limit +125°C and lower temperature limit -40°C).
Vibration, High Frequency: In accordance with method 204 of MIL-STD-202, test condition D.
Shock: In accordance with method 213 of MIL-STD-202, test condition I.
Salt spray: Not applicable.
Resistance to soldering heat: In accordance with method 210 of MIL-STD-202, test condition D +600°F for
10 seconds.
Part number: M23971/5- (dash number from table I).
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