MIL-PRF-39016/28F
QUALIFICATION INSPECTION:
Qualification inspection and sample unit size: See table II.
TABLE II. Qualification inspection and sample size. 1/
Single submission
Group submission
M39016/28-030
18 units plus 1 open unit for
18 units plus 1 open unit for
level L at C = 0 2/
level L at C = 0 2/
33 units plus 1 open unit for
33 units plus 1 open unit for
level M at C = 0 2/
level M at C = 0 2/
Qualification inspection as
Qualification inspection as
applicable
applicable
M39016/28-025
2 units each PIN
M39016/28-026
Qualification inspection, Q1.
M39016/28-027
M39016/28-028
M39016/28-029
1/ For retention of qualification or extension of qualification to lower failure rate levels, all life
test data accumulated on MIL-PRF-39016/30 may be used in addition to MIL-PRF-
39016/28 data. Prior to performance of qualification or extension 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 Q5,
MIL-PRF-39016, if the relay manufacturer elects to test the number of units permitting
one or more failures. Prior to performance of qualification inspection testing, the relay
manufacturer shall preselect the sampling plan.
Initial qualification of relays supplied with spreader mounting pads (-031 through -036) 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; pickup voltage, hold voltage,
dropout voltage, coil resistance, operate and release time, contact dynamic characteristics, coil transient
suppression (when specified), solderability, seal, visual and mechanical inspection (external).
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