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|  MIL-R-62197A(AT)
3. REQUIREMENTS
3.1 First article. When specified (see 6.2), relay shall be subjected to first article
inspection (see 4.4).
3.2 Materials. Materials shall be as specified herein and in referenced specifications,
standards, and drawings. Material shall be free from defects which adversely affect performance
or serviceability of the finished product.
3.2.1 Recycled, virgin, and reclaimed materials. There are no requirements for the
exclusive use of virgin materials. The use of recycled or reclaimed (recovered) materials is
acceptable provided that all other requirements of this specification are met (see 6.4.2).
3.3 Construction. The relay shall be a SPDT, hermetically sealed, electromagnetic,
direct-current, balanced-armature relay, defined as a Category III relay in MIL-R-5757, and shall
conform to Drawing 12251725.
3.3.1 Corrosion resistance. Exposed surfaces shall be of corrosion-resistant material or
suitably treated to prevent corrosion.
3.3.2 Case. The relay case shall be hermetically sealed per symbol 4 of MIL-R-5757.
3.3.3 Contact arrangement. The relay contact arrangement shall be a SPDT
configuration conforming to forming to form C of MIL-R-5757.
3.3.4 Terminals. The relay shall be provided with solder terminals located as shown in
Drawing 12251725.
3.3.5 Weight. The weight of the relay shall be not more than 3 ounces.
3.4 Performance.
3.4.1 Insulation resistance. Insulation resistance shall be not less than 1,000 megaohms,
with 500 volts, direct-current (vdc) applied (see 4.7.3).
3.4.2 Dielectric strength. The relay shall withstand the specified test voltage without
evidence of damage due to arcing, flashover, or insulation breakdown. Leakage current shall not
exceed 1.0 milliamperes (mA) (see 4.7.4).
Test Voltage:
(1) Across open contacts 500 vdc/300 volts, root mean square (vrms).
(2) Other than across open contacts 1500 vdc/1000 vrms.
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