MIL-R-5757J
3.18 Coil life (see 4.6.16). There shall be no evidence of damage.
3.19 Resistance to soldering heat (see 4.6.17). There shall be no damage which would adversely affect normal operation of the relay.
3.20 Salt spray or salt atmosphere (corrosion) (see 4.6.18). There shall be no evidence of breaking, cracking, chipping, or flaking of the finish, nor exposure of the base metal, due to corrosion, which would adversely affect the application or performance characteristics of the relay.
3.21 Overload (applicable to high level relays only) (see 4.6.19). The voltage drop across closed contacts shall be less than or equal to 5 percent of the applied load voltage and the voltage across open contacts shall be 95 percent or more of the applied load voltage. The case-to-ground fuse shall remain electrically continuous.
3.22 Life (see 4.6.20). For low level testing, the contact miss detector's monitoring level shall be less than or equal to 100 ohms (unless otherwise specified, see 3.1). For high level testing, the contact miss detector's monitoring level shall be less than or equal to 5 percent of the applied load voltage and the voltage across open contacts shall be 95 percent or more of the applied load voltage. Unless otherwise specified, the static contact resistance following
cycling shall be no greater than twice the initial specified contact resistance requirement. There shall be no mechanical or electrical failure. Welding of contacts, failure to make, carry or break the load, or failure of the fuse connected between case and load system ground or neutral shall constitute a failure. Relays indicating failure, not verified in accordance with a failure verification procedure approved by the Qualifying Activity, may be returned to test. During post life tests, failure of a diode shall constitute a failure.
3.23 Intermediate current (see 4.6.21). During cycling, unless otherwise specified (see 3.1), the resistance of a closed contact shall be less than or equal to 3 ohms and the voltage across an open contact shall be 95 percent or more of applied load voltage. After cycling, the static contact resistance shall be measured at room ambient (+25°C) and shall not exceed the limits as specified (see 3.1). Intermediate current shall not be considered a low level or high level contact load rating (see 6.1.1). There shall be no mechanical or electrical failure. Welding of contacts, failure to make, carry or break the load, or failure of the fuse connected between case and load system ground or neutral shall constitute a failure. Relays indicating failure, not verified in accordance with a failure verification procedure approved by the qualifying activity, may be returned to test.
3.24 Mixed loads (applicable to high level relays only; see 3.1 and 4.6.22). During cycling (unless otherwise specified) the dynamic contact resistance of a closed contact shall not exceed the applicable value specified. The voltage across an open contact shall be 95 percent or more of the applied load voltage. After cycling, the closed static contact resistance shall not exceed the limits specified.
3.25 Mechanical life (see 4.6.23). After cycling, the insulation resistance and dielectric withstanding voltage shall not exceed the limits as specified (see 3.1) and the operate and release time shall not exceed 120 percent of the limits specified (see 3.1). There shall be no mechanical or electrical failure during or following cycling. Failure of the
fuse connected between case and load system ground or neutral shall constitute a failure. The manufacturer's test system shall have the means to ensure that the required number of test cycles have been performed.
3.26 Resistance to solvents (see 4.6.24). All markings shall remain legible after testing.
3.27 Marking (see 3.1and 6.2). Relays shall be marked in accordance with MIL-STD-1285, with the following:
a. Part or Identifying Number (PIN) (see 1.2).
b. Rated coil voltage or current.
c. Coil resistance (or coil current) (see 3.10.3.1).
d. Contact rating (the highest dc resistive load rating shall be marked when plural loads are specified (see
3.4.3 and 3.1).
e. Circuit diagram (see 3.4.5).
f. Terminal identification (see 3.4.4.1).
g. Commercial and Government and date codes in accordance with MIL-STD-1285.
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