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MIL-R-5757H
Six pole relays shall be tested as follows:
Samples 1 through 4 (pole 1):
0.1 ampere resistive at 28 1 V dc.
(pole 2):
0.3 ampere inductive load (220 mH) at 28 1 V dc.
(pole 3):
0.5 ampere resistive at 28 1 V dc.
(pole 4):
rated resistive load at 28 1 V dc.
(pole 5):
0.1 ampere resistive at 28 1 V dc.
(pole 6):
rated resistive load at 28 1 V dc.
4.6.23 Mechanical life (see 3.25). Relays shall be cycled one million cycles at room ambient
temperature. The cycling rate shall be as specified in 4.6.20.4. Each contact load shall be 10 A to 50
A at 10 mV to 50 mV (dc or peak ac). The coil shall be energized at rated voltage (or current) during 50
percent 10 percent of each cycle.
4.6.24 Resistance to solvents (see 3.26). Relays shall be tested in accordance with method 215 of
MIL-STD-202. The following details and exceptions shall apply:
a. Portion to be brushed: All marking.
b. Specimens to be tested: One sample shall be tested with each solvent solution. For qualification
inspection, samples in excess of the available number of solvents shall be exempt from test. For
group C testing, two additional samples shall be selected. The additional samples may be
electrical rejects from group A2.
c. Examination: Specimens shall be examined for legibility of marking.
5. PACKAGING
5.1 Packaging. For acquisition purposes, packaging requirements shall be as specified in the
contract or order (see 6.2). When actual packaging of materiel is to be performed by DoD personnel,
these personnel need to contact the responsible packaging activity to determine the appropriate
packaging requirements. Packaging requirements are maintained by the Inventory Control Point's
packaging activity within the Military Department or Defense Agency, or within the Military Department's
System Command. Packaging data retrieval is available from the managing Military Department's or
Defense Agency's automated packaging files, CD-ROM products, or by contacting the responsible
packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not
mandatory.)
6.1 Intended use. Relays conforming to this specification are intended for use in electronic and
communication equipment. Their principal areas of application are for aircraft, missiles, spacecraft and
ground-support electronic and communication equipment. This does not preclude the use of these relays
in other military applications. The relays covered by this specification shall be able to operate
satisfactorily in systems under the following demanding conditions: vibration up to 15 g's shock of 100
g's, and temperature ranges of -65C to +125C
CAUTION: The use of any coil voltage (or current) less than the rated coil voltage (or current) will
compromise the operation of the relay.
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