MIL-PRF-39016/11G
accumulated on MIL-PRF-39016/16, and MIL-PRF-39016/21 may be used in addition to MIL-PRF-
39016/11 data. Prior to performance of retention of qualification testing, the relay manufacturer shall
preselect the sampling plan.
2/ The number of units required for qualification testing shall be increased as required in Q, MIL-PRF-
39016, if the contractor elects to test the number of units permitting one or more failures. Prior to
performance of qualification testing, the relay manufacturer shall preselect the sampling plan.
Initial qualification of relays supplied with spreader mounting pads (-041 through -048) 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, or
dropout values (voltages), 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 (-041 through -048): Two (2) units of the 26.5-volt rated coil voltage (-044) 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-39016 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 spreader mounting pads (-041 through -048), shall be tested as specified
below:
Perform seal test immediately, preceding the A2 electrical tests. Relay leads shall be formed and the spreader
mounting pad removed before the seal test. After the seal test, the spreader mounting pad shall be rigidly
attached to the relay and the remaining group A tests performed.
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