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|  MIL-R-5757H
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3.7.2 All other relays. There shall be no leakage in excess of 1 x 10 atmospheric cubic centimeters
3
per second of air (atm cm /s).
3.8 Insulation resistance (see 4.6.6). The insulation resistance shall be 10,000 megohms or more,
unless otherwise specified (see 3.1). After the high level life tests, the insulation resistance shall be
1,000 megohms or more.
3.9 Dielectric withstanding voltage (see 4.6.7). There shall be no leakage current in excess of 100
microamperes (A). After high level tests, the dielectric withstanding voltage measured at atmospheric
or reduced barometric pressure shall be at least 75 percent of the initial value (see 3.1).
3.10 Electrical characteristics (see 4.6.8). The following tests as specified in 3.10.1 through 3.10.5
inclusive, shall comprise the electrical characteristics tests. Unless otherwise specified, electrical
characteristics shall be 100 percent inspected and performed in the order as shown below.
3.10.1 Static contact resistance (see 4.6.8.1). Unless otherwise specified (see 3.1), the static contact
resistance shall not exceed 0.05 ohm.
3.10.2 Specified pickup, hold, and dropout values (voltages) (or current);(see 4.6.8.2). The specified
pickup, hold, and dropout values (voltages) shall be as specified (see 3.1).
3.10.3 Coil resistance (or coil current) (see 4.6.8.3).
3.10.3.1 Coil resistance (or coil current) (see 4.6.8.3.1). The coil resistance (or coil current) shall be
as specified (see 3.1).
3.10.3.2 Coil current (see 4.6.8.3.2). The coil current shall be as specified (see 3.1).
3.10.4 Operate and release time (see 4.6.8.4). The operate and release time shall be as specified
(see 3.1). In multipole relays, during each of the operate and the release time measurements, the
difference between the first moving contact to make and the last moving contact to make shall not
exceed 1 millisecond (ms). This shall be exclusive of contact bounce. Release time is not applicable to
latching relays.
3.10.4.1 Break before make (see 4.6.8.4.1). Moving contacts within a multipole relay shall show no
evidence of any open contact closing before all closed contacts have opened (see 3.1). This applies to
either state of the relay.
3.10.5 Contact dynamic characteristics (see 4.6.8.5).
3.10.5.1 Contact bounce (see 4.6.8.5.1). The duration of the contact bounce shall be as specified
(see 3.1).
3.11 Thermal shock (see 4.6.9). Insulation resistance (3.8), specified pickup, hold, and dropout values
(voltages)(3.10.2), and operate and release time (3.10.4) shall meet the specified requirements at each
temperature extreme. Following the temperature excursions, there shall be no cracking, peeling, or
flaking of the finish; dielectric withstanding voltage shall meet the requirements of 3.9.
3.12 Shock (specified pulse) (see 4.6.10). Unless otherwise specified (see 3.1), there shall be no
opening of closed contacts in excess of 10 microseconds (s) and there shall be no closure or bridging of
open contacts in excess of 1 s and no evidence of mechanical or electrical damage.
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