MIL-R-835168
a. Mounting method: Rigidly mounted by normal mounting means. (Relays designed without mounting provisions shall be rigidly secured to a suitable nonmagnetic mounting plate by means of potting or adhesive applied between the top of the relay and the mounting plate.)
b. Test condition: A (50 g).
c. Electrical load conditions: The coil shall be deenergized and the contacts shall not be loaded or monitored for chatter and closure.
d. Measurements and examinations after shock: Dielectric withstanding voltage, static contact resistance, and pickup and dropout voltages (as applicable, see 3.1) shall be measured as specified in 4.6.6, 4.6.12, and 4.6.10, respectively. Relays shall then be examined for loosening of parts.
4.6.19 Vibration, high frequency (see 3.22). Relays shall be tested in accordance with method 204 of MIL-STD-
202. The contacts shall not be loaded or monitored for chatter or closure during vibration. The following details shall apply:
a. Mounting: Shall be as specified in 4.6.18a.
b. Test condition: D, except amplitude shall not exceed 20 g and frequency range shall be 10 to 2,000 Hz. c. Measurements: Shall be as specified in 4.6.18d.
4.6.20 Moisture resistance (see 3.23). Relays shall be tested in accordance with method 106 of MIL-STD-202. The following details and exceptions shall apply:
a. Mounting: On a corrosion-resistant panel by normal mounting means. b. Initial measurements: Not applicable.
c. Loading voltage: Not applicable.
d. Final measurements: Upon completion of step 6 of the final cycle, insulation resistance shall be measured as specified in 4.6.7. After a 24-hour drying period at a relative humidity of 50 ±5 percent, dielectric withstanding voltage shall be measured as specified in 4.6.6, except the test voltage shall be 90 percent of the initial potential. The insulation resistance, static contact resistance, and pickup and
dropout voltages (as applicable, see 3.1) shall be measured as specified in 4.6.7, 4.6.12, and 4.6.10,
respectively.
e. Examination after test: Relays shall be examined for evidence of breaking, cracking, chipping or flaking of the finish, and loosening of the terminals.
4.6.21 Contact sticking (see 3.24). Relays shall be energized for 24 hours at maximum operating temperature with 120 percent of rated voltage applied to the coil. No load shall be applied to the contacts. At the end of this period, without physically disturbing the relay, the coil shall be deenergized and the release time (or operate time for latching relays) shall be measured as specified in 4.6.13.
4.6.22 Resistance to soldering heat (see 3.25). Relays shall be tested in accordance with method 210 of
MIL-STD-202. The following details and exceptions shall apply:
a. Depth of immersion in molten solder: Within .060 ±.020 inch (1.52 ±0.51 mm) of the relay base. b. Test condition: C.
c. Measurements after test: Insulation resistance, static contact resistance, pickup and dropout voltages (as applicable, see 3.1), and dc coil resistance shall be measured as specified in 4.6.7, 4.6.12, 4.6.10, and
4.6.8, respectively.
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