MIL-C-5G
4.6.8.2 For conformance inspection. Capacitors shall be tested as specified in 4.6.8.1, except that only three of
the five thermal shock cycles shall be required; however, at the option of the manufacturer, the temperature within the
cold chamber may be lower than -55°C, and the temperature within the hot chamber may be higher than the
applicable maximum temperature of 4.6.8.1.1; and the temperature of the water may be higher than 65°C, or lower
than 20°C.
4.6.9 Shock (specified pulse) (see 3.12). Capacitors shall be tested in accordance with
method 213 of MIL-STD-202. The following details shall apply:
a. Mounting: Capacitors shall be rigidly mounted by the body.
b. Test condition: Letter I (100G (pk)).
c. Measurements and electrical loading during shock: DC rated voltage shall be applied to the capacitor during
test. Observations shall be made to determine intermittent contact or arcing or open-circuiting or short-circuiting.
Detection equipment shall be sufficiently sensitive to detect any interruption of 0.5 ms or greater duration.
d. Measurements after shock: Capacitors shall be visually examined for evidence of arcing, breakdown, and
mechanical damage.
4.6.10 Solderability (see 3.13). Capacitors shall be tested in accordance with method 208 of MIL-STD-202. The
following details shall apply:
a. The number of terminations of each capacitor to be tested: 2.
b. Special preparation of terminations: None; to be tested in an "as received" condition.
c. Depth of immersion in flux and solder: Both leads to be immersed to within 0.05 inch of the capacitor body.
4.6.11 Terminal strength (see 3.14)
4.6.11.1 Pull test. Capacitors shall be held by one terminal and a load gradually applied to the other terminal (the
capacitor shall not be supported by its body) until the applied load reaches 5 pounds, unless otherwise specified (see
3.1). The maximum pull shall be applied for at least 5 seconds. The capacitors shall then be examined for evidence
of loose or ruptured terminals.
4.6.11.2 Twist test (straight leads only) (see 3.1). All straight lead terminals shall be bent through 90 degrees at a
point 1/4 inch from the body of the capacitor, with the radius of curvature at the bend approximately 1/32 inch. The
terminals shall be clamped to within 3/64 ± 1/64 inch of the bend on the side between the bend and the remaining
portion of the lead, away from the body. The body of the capacitor shall then be rotated about the original axis of the
bent terminal through 360 degrees in alternating directions for five such 360-degree rotations, at the rate of
approximately 5 seconds per rotation.
4.6.11.3 Bend test (crimped leads only) (see 3.1). Capacitors with crimped leads shall be clamped at the first
bend at the bottom of the crimp. The body of the capacitor shall then be bent 90 degrees from the vertical in one
direction, then back to the vertical, then bent 90 degrees in the opposite direction and then back to the vertical. This
sequence shall be performed one time. After the test, capacitors shall be examined for loose or ruptured terminals or
other damage.
4.6.12 Moisture resistance (see 3.15). Capacitors shall be tested in accordance with method 106 of MIL-STD-
202. The following details and exceptions shall apply:
a. Mounting: Except during measurements, capacitors shall be securely fastened by normal mounting means to
rigidly supported terminals, so spaced that the length of each lead between support and capacitor body shall be
5/8 inch.
b. Initial measurements: Not applicable.
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