MIL-STD-981C
TABLE IV. Inspection of transformers and inductors similar to Transformers and inductors that have
been qualified by test. (Families 03, 04, 20, 21, 31, 36,37,40, 41)
Test 1/ |
Class B |
|
Sample size |
Rejects allowed |
|
Visual and mechanical examination (external) Resistance to soldering heat Terminal strength Dielectric withstanding voltage (at atmospheric pressure) 2/ Temperature rise Vibration Shock Dielectric withstanding voltage(at reduced voltage) Insulation resistance Winding continuity Resistance to solvents Solderability Corona discharge (when specified) Electrical characteristics Life (minimum six week test duration, for 1000 hours minimum) Dielectric withstanding voltage (at reduced voltage) Insulation resistance 3/ Electrical characteristics Visual and mechanical examination (external) Visual and mechanical examination (internal) (one sample unit) |
3 |
0 |
1/ Specified test shall be performed in accordance with MIL-PRF-27 or MIL-PRF-21038 as applicable and in the order shown.
2/ At maximum temperature for the class.
3/ At specified voltage with insulation resistance (IR) of 7,500 megohms minimum.
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