MIL-PRF-39016/20J
Initial qualification of relays supplied with spreader mounting pads (-061 through -066 and -073 through -078 and -
091 through -096), shall be tested as specified below:
Perform the following tests as specified in the qualification inspection table of MIL-PRF-39016, in the order shown
below:
Before installation of spreader mounting pad: Screening, visual and mechanical examination (internal),
thermal shock, resistance to solvents, vibration (sinusoidal), vibration (random), shock (specified pulse),
acceleration, terminal strength, magnetic interference (when specified), capacitance (when specified), coil life
(applicable to continuous duty relays only), resistance to soldering heat, salt spray (corrosion), overload
(applicable to high level relays only), life, terminal strength, and intermediate current.
After installation of spreader mounting pad, perform the following tests as specified in the qualification inspection
table of MIL-PRF-39016, in the order shown below:
Insulation resistance, dielectric withstanding voltage, static contact resistance, specified pickup, hold and
dropout values (voltage), coil resistance, operate and release time, contact dynamic characteristics, coil
transient suppression (when specified), solderability, seal, visual and mechanical inspection (external).
Qualification inspection (reduced testing for previously qualified relays) for relays supplied with spreader mounting
pads (-061 through -066, -073 through -078, and -091 through -096), two units from figure 3 and two units from
figure 4 of the 26.5 volt rated coil voltage (-066 and -078) shall be tested as specified below:
Before installation of spreader mounting pad, perform the following tests as specified in the qualification
inspection table of MIL-PRF-39106 in the order shown below:
For failure rate level L only: Screening.
For failure rate levels M, P, and R: Vibration (sinusoidal) test duration shall be 10 minutes, vibration
(random), and screening.
After installation of spreader mounting pad, perform the following tests as specified in the qualification
inspection table of MIL-PRF-39016 in the order shown below:
Insulation resistance, dielectric withstanding voltage, static contact resistance, specified pickup, hold, and
dropout values (voltages), coil resistance, operate and release time, contact dynamic characteristics, coil
transient suppression (when specified), solderability, seal, visual and mechanical inspection (external).
Group A testing for relays supplied with spread mounting pads (-061 through -066, -073 through -078, and -091
through -096) shall be tested as specified below:
Perform seal test immediately, preceding the A2 electrical tests. Relay leads shall be formed and the mounting
pad removed before the seal test. After the seal test, the mounting pad shall be rigidly attached to the relay and
the remaining group A tests performed.
Qualification inspection (reduced testing) and sample size: See table III.
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