MIL-DTL-83503 Connectors, Electrical, Flat Cable, And/Or Printed Wiring Board, Nonenvironmental, General Specification ForThis specification covers the requirements for multi-contact electrical connectors terminating flexible flat cable, and for mounting on printed wiring boards. It includes insulation displacement connectors \(IDC\), solder transition connectors, and header style connectors.

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MIL-DTL-83503C

.100 MIN

(2.54 mm)

.7L

.100 MIN

(2.54 mm)

OPTIONAL

POWER

SUPPLY

NOTES:

1. Voltage drop measurement connection points shall be permanent connections and may be protected

by potting or equivalent means.

2. Total resistance equals the wire resistance plus the mated contact resistance.

FIGURE 2. Test circuit for measurement of contact resistance.

4.6.13 Temperature cycling (see 3.5.11). Connectors shall be tested in accordance with test

procedure EIA-364-32, test condition I, 5 cycles. The following details shall apply:

Test connectors: Wired and mated.

A mated connector shall be weighed and the weight recorded.

The dwell time shall be determined by test procedure EIA-364-32.

Step 3 shall be 120�C.

At the completion of the last cycle, the connectors shall be returned to room temperature and shall

meet the contact resistance specified in 3.5.10.

Connectors shall exhibit no visual evidence of physical degradation and shall pass succeeding

tests of table II or table VI as applicable in sequence.

4.6.14 Shock (specified pulse) (see 3.5.12). The connectors shall be tested in accordance with

test procedure EIA-364-27, condition H. The following details shall apply:

a. Fixture: The test specimens shall be attached to the test fixture using their normal attaching

means. The cables shall be rigidly supported at a distance of 4 inches from the connector body

(see figure 1).

b. Test specimens: Wired and mated; conductors shall be connected in series with a suitable

monitoring circuit to detect any interruptions of current greater than 1 microsecond. Special

mounting means may be utilized upon agreement between the manufacturer, customer and the

government.

c. Applied current: 10 milliamperes.

d. The cable shall be supported at a distance of 4 inches (101.6 mm) from the connector body.

e. Following completion of shocks on each axis, solder joints and contacts shall be examined at 10X

magnification for signs of cracks or other degradation. The remainder of the connectors shall be

inspected for damage and evidence of unusual wear.