MIL-PRF-94 Resistors, Variable, Composition General Specification ForThis specification covers the variable resistors having a composition resistance element shaped in an arc, and a contact bearing uniformly thereon, so that a change in resistance is produced between the terminal of the contact and the terminal of either end of the resistance element when the operating shaft is turned. These resistors are capable of full load operation \(where maximum resistance is engaged\) at a maximum ambient temperature of 70 degrees C and are capable for continuous operation when properly derated, at a maximum temperature of 120 degrees C \(see 6.9\).

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MIL-PRF-94G

APPENDIX A

TABLE A-I. Requirements for qualification sample.

Lot

4 1/

Number of samples to

be submitted (see A.3.1.2)

Lowest

10,000

Critical value

Highest

Total resistance

ohms

Switch

None

SPST

None

Taper

C or F

I / IA

1 to 6

7 to 12

III

1 to 6

13 to 18

1 to 6

13 to 18

Groups

(see table VIII)

19 to 24

13 to 18

19 to 24

and sample

units number

25 to 30

VII

31 t0 36

VIII

37 to 46

IX 4/

47 to 56

If lot 4 is not submitted, 24 sample units shall be submitted for lot 3. Six of the additional sample units

shall be subjected to the test of group III and the remaining 6 to the tests of group VI.

For which qualification is sought.

See Table A-III.

Manufacturers can provide certification that resistors are fungus free or shall test resistor.

TABLE A-II. Samples for qualification of additional locking bushing types.

Groups (see table IX)

Number of sample units

and sample units number

in the same style to be

submitted (see A.3.1.2)

III

1 to 12

1 to 6

7 to 12