MIL-PRF-23648 Resistor, Thermal \(Thermistor\) Insulated, General Specification ForThis specification covers the general requirements for general purpose insulated thermal resistors to be used for temperature compensation, control, and measurement over the temperature range specified.

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MIL-PRF-23648F

d. Number and direction of applied shocks: The thermistors shall be subjected to a total of ten

shocks in each of two mutually perpendicular planes (one perpendicular and the other parallel to

longitudinal axis of the thermistor).

e. Measurements during shock: Each thermistor shall be monitored to determine electrical

discontinuity by a method which shall at least be sensitive enough to monitor or register

automatically any electrical discontinuity of 0.1 millisecond or greater duration.

f. Measurement after shock: Zero power resistance shall be measured at 25�C as specified in 4.8.2.

g. Inspection after test: Thermistors shall be inspected for evidence of mechanical and electrical

damage.

4.8.21 Immersion (see 3.23). Thermistors shall be tested in accordance with method 104 of MIL-STD-

202. The following details and exceptions shall apply:

a. Test condition letter: B.

b. Inspection after last cycle: There shall be no evidence of mechanical damage.

c. Resistance measurement: Measure zero power resistance not later than 24 hours after the last

cycle as specified in 4.8.2. Within 2 hours, insulation resistance shall be performed in accordance

4.8.22 Resistance to solvents (see 3.24). Thermistors shall be tested in accordance with method 215

of MIL-STD-202. The following details shall apply:

a. Marked portion of thermistor shall be brushed.

b. The number of sample units shall be as specified in tables IV and VII, as applicable.

c. Thermistors shall be inspected for mechanical damage and legibility of markings.

5. PACKAGING

5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the

contract or order (see 6.2). When packaging of materiel is to be performed by DoD or in-house

contractor personnel, these personnel need to contact the responsible packaging activity to ascertain

packaging requirements. Packaging requirements are maintained by the Inventory Control Point's

packaging activity within the Military Service or Defense Agency, or within the military services system

commands. Packaging data retrieval is available from the managing Military Department's or Defense

Agency's automated packaging files, CD-ROM products, or by contacting the responsible packaging

activity.