MIL-R-83516B
TABLE I. Ceramic insulating compound. 1/
Dielectric loss index at 1 MHz |
.016 maximum dielectric loss index |
Dielectric strength |
200 to 249, incl average dielectric strength volts/mil |
Flexural strength (modules of rupture) |
12,000 to 19,900 inch average flexural strength pounds/ sq. in. |
1/ Ceramic used for external surfaces shall be glazed.
3.3.3 Metals. Metals shall be of a corrosion-resistant type or shall be plated or treated to resist corrosion.
3.3.4 Magnet wire. Magnet wire shall conform to MW-1000.
3.3.5 Rubber. Rubber shall conform to A-A-59588.
3.3.6 Fungus-resistant. Materials used in the construction of relays shall be fungus inert (see requirement 4 of
3.4 Design and construction. Relays shall be of the design, construction, and physical dimensions specified (see
3.1).
3.4.1 Enclosures. Unless otherwise specified (see 3.1), relays shall be provided with a molded package to surround the coil and reed capsule and, when applicable (see 3.1), the diodes and electrostatic shielding.
3.4.2 Contacts. Contacts shall be glass enclosed, shall have the load ratings and arrangements as specified (see
3.1), and shall be capable of carrying the maximum rated current continuously.
3.4.3 Coils. Coils shall be adequately insulated electrically from the enclosure and the contacts, and shall be designed for continuous cycle at rated voltage. The resistance and rated voltage shall be as specified (see 3.1).
3.4.4 Terminal identification. The terminals shall be identified as specified (see 3.1).
3.4.5 Circuit diagram. The circuit diagram shall be as specified (see 3.1).
3.4.6 Operating temperature range. The operating temperature range shall be as specified (see 3.1).
3.5 Thermal shock. When tested as specified in 4.6.2, relays shall meet the following requirements at each operating temperature extreme:
Insulation resistance ------------------------------------Shall be as specified in 3.10. At high operating temperature, the insulation resistance between coil and enclosure shall be not less than 500 megohms.
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.
Visual examination- --------------------------------------There shall be no evidence of cracking, peeling, or flaking of the finish.
3.6 Run in. When relays are tested as specified in 4.6.3, the contact resistance shall not exceed 0.120 ohm (120 milliohms).
3.7 Contact stability. When relays are tested as specified in 4.6.4, the difference between static contact resistance measurements shall not exceed 0.005 ohm (5 milliohms).
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