8 inch printed wiring boards, and for interconnections between printed wiring boards. The connectors are intended to provide a reliable connection between printed wiring and conventional wiring. The interconnector concept is intended to provide connection of printed wiring on one board to printed wiring on another board.

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MIL-DTL-21097G

3.7 Insulation resistance. When connectors are tested in accordance with 4.6.3, the initial insulation resistance shall

be not less than the applicable value specified below:

a. Connectors (individual contact) mounted to PC boards � 500 megohms.

b. Connectors not mounted PC boards � 5,000 megohms.

3.8 Dielectric withstanding voltage. When connectors are tested as specified in 4.6.4, there shall be no evidence of

breakdown of insulation or flashover when the voltages specified in table IV are applied between adjacent contacts and

between any external mounting hardware and the closest contacts to the hardware.

TABLE IV. Voltages for contact spacing.

Altitude

Test voltages for

contact spacing (in inches)

0.050

0.075

0.100

0.125

0.156

0.200

Sea level

375

650

1500

1800

50,000 feet

275

500

675

70,000 feet

275

325

450

3.9 Contact resistance. When connectors are tested as specified in 4.6.5, unless otherwise specified (see 3.1), the

initial contact resistance shall not exceed 30 millivolts. In addition, the difference between the initial measurement and

any succeeding measurement made upon an identical individual contact shall not increase by more than 50 percent of

the initial measurement.

3.10 Engagement and separation forces (board side).

3.10.1 Individual contact engagement and separation forces.

3.10.1.1 Test I (applicable on to types A and AD). When connectors are tested as specified in 4.6.6.1.1, the

individual contact engagement force shall not exceed 16 ounces. Unless otherwise specified (see 3.1), the separation

force shall be not less than 1 ounce.

3.10.1.2 Test II (type CR, as applicable). When connectors are tested as specified in 4.6.6.1.2, the individual contact

engagement force shall not exceed 16 ounces and the separation force shall be not less than 2 ounces.

3.10.2 Total engagement force (applicable on to types A and AD). When connectors are tested as specified in

4.6.6.2, unless otherwise specified (see 3.1), the total engagement force shall be not greater than values specified in

table V.

TABLE V. Total connector engagement force.

Number of contact

Maximum board

positions

insertion force (gage)

8 pounds