MIL-R-835168
3.23 Moisture resistance. When relays are tested as specified in 4.6.20, there shall be no evidence of breaking, cracking, chipping, or flaking of the finish, and no loosening of the terminals. Immediately after step 6 of the final cycle, the insulation resistance shall be not less than 100 megohms. After the 24-hour drying period, the dielectric withstanding voltage; insulation resistance; static contact resistance; and pickup and dropout voltages (as applicable, see 3.1) shall be as specified in 3.9, 3.10, 3.15, and 3.13, respectively.
3.24 Contact sticking. When relays are tested as specified in 4.6.21, the release time (or operate time for latching relays) shall not exceed 1.0 ms (1.5 ms for form C contacts).
3.25 Resistance to soldering heat. When relays are tested as specified in 4.6.22, the insulation resistance; static contact resistance; pickup and dropout voltages (as applicable, see 3.1); and dc coil resistance shall be as specified in 3.10, 3.15, 3.13, and 3.11, respectively.
3.26 Salt spray (corrosion). When relays are tested as specified in 4.6.23, there shall be no evidence of breaking, cracking, chipping, or flaking of the finish, and no exposure of the base metal due to corrosion which would adversely affect the application or performance characteristics of the relay.
3.27 Lead integrity. When relays are tested as specified in 4.6.24, there shall be no evidence of loosening or breaking of the terminals or other damage that could adversely affect the normal operation of the relay. 8ending of printed circuit terminals shall not be construed as damage provided they can be satisfactorily reformed to their original configuration.
3.28 Cross talk (applicable to relays with electrostatic shielding). When relays are tested as specified in 4.6.25, the attenuation shall be not less than -20 decibels.
3.29 Life. When tested as specified in 4.6.26, relays shall remain electrically operative and no mechanical damage shall exist. During and following this test, relays shall meet the following requirements:
DC coil resistance ------------------------- Shall be as specified in 3.11. Static contact resistance ---------------- Shall be as specified in 3.15. Pickup and dropout voltages
(as applicable, see 3.1)----------------- Shall be as specified in 3.13. Operate and release times
(as applicable, see 3.1)----------------- Shall be as specified in 3.16.
Dielectric withstanding voltage--------- Shall be as specified in 3.9. Insulation resistance---------------------- Shall be as specified in 3.10.
3.30 Marking. Relays shall be marked in accordance with method I of MIL-STD-1285 with the following information:
a. Military part number (see 3.1). b. Rated coil voltage (see 3.1).
c. Source and date codes.
d. Manufacturer's part number.
3.31 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle costs.
3.32 Pure tin. The use of pure tin, as an underplate or final finish, is prohibited both internally and externally. Tin content of (product) and solder shall not exceed 97 percent, by mass. Tin shall be alloyed with a minimum of 3 percent lead, by mass (see 6.4).
3.33 Workmanship. Relays shall be so fabricated as to be uniform in quality, and shall be free from cracks, displaced parts, sharp edges, burrs, and other defects that will affect life, serviceability, and appearance.
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