Connector mechanical specification and test requirement

As we mention in previous article, specification can be divided in to 4 parts (electrical, mechanical, environment and environment protection data) as different connectors are applied in various environment and different type of connector are needed, such as rectangularconnector, circular connector, pogo pin connector, twist pin connector, micro d connector(d-sub connector), etc.

Mechanical data:

1.       Mating and unmating force

Ensure connector functions and customer usage

Test method- MIL-STD-1344D, 2013.1

Main point for test:

a. Whole connector shall be tested (full assembly)

b. Test axis is the right direction of connector using

c. Test speed 25.4mm/min.

Specification requirement-:

a. Mating force 35N Max

b. Unmating force 7N Min. (initial); 3N Min. (final)

2. Locking force

Guarantee connector connection and function in case of emergency.

Test method N/A

Main points for test:

a. Whole connector shall be tested (full assembly)

b. Test axis is the right direction of connector using

c. Test speed 25.4mm/min.

Specification requirement 30N min

3.       Retention

Promise contact performance won’t be influenced by external force.

Test method- EIA-364-29

Main points for test:

a. Whole connector shall be tested (full assembly)

b. Test axis is the right direction of connector using

c. Test speed 25.4mm/min.

d. Destructive test

Specification requirement 4.9N min

4.       Normal force

Ensure connector with low contact resistance and friction force.

Test method N/A

Main points for test:

a. Positive contact stress will happen under working condition

b. Test speed 25.4mm/min

Specification requirement 60~150g

5.       Durability

Test method MIL-STD-1344A, 2016.1

Main points for test:

a. Test axis is the right direction of connector using

b. Test speed 200~500 cycles/H

c. No loading during testing

Specification requirement

a. Confirm all the data, such as mating and unmating force, contact resistance, insulation resistance, withstanding voltage, sealing performance, etc.

b. Check appearance

6.       Cable pull-out

Make sure that cable or connector won’t be damaged by external force.

Test method EIA-364-38

Main points for test

a. Speed 89+/-4 N/min., load 1H

b. Static load 40N for 1 min

Specification requirement Check appearance

7.       Visual and dimensional inspection

Sure connector appearance, size and quality.

Test method EIA-364-18

Main points for test

a. Appearance test

b, Size test