MIL-PRF-49462C
d. Test condition; I (100 G's, 6 ms sawtooth).
e. Measurement during shock (not applicable for resistance values greater than 10 megohms): Each
resistor shall be monitored to determine electrical discontinuity by a method which shall at least be
sensitive enough to monitor or register, automatically, any electrical discontinuity of 0.1 ms or
greater duration.
f. Measurement after shock: DC resistance shall be examined for evidence of 4.8.2.
g. Examination after test: Resistors shall be examined for evidence of mechanical and electrical
damage.
4.8.15 Vibration, high frequency (see 3.20). Resistors shall be tested in accordance with method 204
of MIL-STD-202. The following details and exceptions shall apply:
a. Mounting of specimens: Resistors shall be mounted on appropriate jig fixtures as specified in
4.8.14a. These fixtures shall be constructed in a manner to insure that the points of the resistor
mounting supports will have the same motion as the vibration test table. The fixtures shall also be
of a construction that will preclude any resonance in the fixture when subjected to vibration within
the test range and the fixture shall be monitored for these features on the vibration table. A
shielded cable containing test leads no larger than AWG 22 stranded wire shall be clamped to the
resistor mounting fixture. The test lead length shall be no greater than necessary.
b. Initial measurement: DC resistance shall be measured as specified in 4.8.2.
c. Test condition: D (10 to 2,000 Hz, 20 G).
d. Direction of motion: In each of two mutually perpendicular planes, one perpendicular and the
other parallel to the longitudinal axis of the resistor. Duration shall be 4 hours in each plane with
total test time of 8 hours.
e. Measurements during vibration (not applicable to resistance values greater than 10 megohms):
Each resistor shall be monitored to determine electrical discontinuity by a method which shall at
least be sensitive enough to monitor or register, automatically, any electrical discontinuity of 0.1
ms or greater duration.
f. Measurement after vibration: DC resistance shall be measured as specified in 4.8.2.
g. Examination after test: Resistors shall be examined for evidence of mechanical damage.
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