MIL-PRF-39009-1 Resistors, Fixed, Wire-Wound, \(Power Type, Chassis Mounted\), Nonestablished Reliability, And Established Reliability, Styles Rer60, Rer65, Rer70, And Rer75This specification covers the associated requirements for nonestablished reliability and established reliability styles RER60, RER65, RER70, and RER75 resistors. These resistors are inductively wound.

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MIL-PRF-39009/1D

4.2 Dielectric withstanding voltage.

4.2.1 At atmospheric pressure. The magnitude of the test voltage shall be as specified in table V.

TABLE V. Dielectric withstanding voltages at atmospheric pressure.

Resistor

Dielectric withstanding

style

test voltage

Volts (rms)

1,000

RER60

1,000

RER65

1,000

RER70

2,000

RER75

4.2.2 At reduced barometric pressure. The magnitude of the test voltage shall be 500 volts.

4.3 Terminal strength. The direct pull shall be as specified in table VI.

TABLE VI. Direct pull.

Resistor

Direct pull

style

(pounds)

RER60

5 +0, -1/4

RER65

5 +0, -1/4

RER70

10 +0, -1/2

RER75

10 +0, -1/2

4.4 Chassis dimensions. The chassis dimensions shall be as specified in table VII.

TABLE VII. Chassis dimensions.

Resistor

Length, width,

Thickness

style

and height

Inches

Inch

6x4x2

.04

RER60

6x4x2

.04

RER65

7x5x2

.04

RER70

7x5x2

.04

RER75