What test methods are available to test connector reliability?
Understand the reliability of the connector, generally carry out various tests on the connector, the test generally involves the following items:
(1) plug force test
Purpose: To verify whether the plugging force of the connector meets the product specifications ;
Principle: The connector is fully inserted or pulled out at a specified rate, and the corresponding force value is recorded.
(2) Durability test
Purpose: To evaluate the effect of repeated insertion and removal on the connector and simulate the insertion and removal of the connector in actual use.
Principle: The connector is continuously inserted and removed at a specified rate until the specified number of times is reached.
(3) Insulation resistance test
Purpose: To verify whether the insulation performance of the connector meets the requirements of circuit design or when subjected to high temperature, humidity and other environmental stresses, whether the resistance value meets the requirements of relevant technical conditions.
Principle: A resistance value is applied by applying a voltage to an insulating portion of a connector to cause a leakage current to be generated on the surface or inside of the insulating portion.
(4) Withstand voltage test
Purpose: To verify whether the connector can work safely at rated voltage, and whether it can withstand the potential of overpotentials, thereby assessing whether the connector insulation or insulation gap is appropriate: between the connector contacts and the contacts, the contacts and A specified voltage is applied between the outer casings for a predetermined period of time to observe whether the sample has breakdown or discharge.
(5) Contact resistance test
Purpose: To verify the resistance value generated when current flows through the contact surface of the contact.
Principle: By measuring the current through the connector, the voltage drop across the connector is measured to obtain the resistance value.
(6) Vibration test:
Purpose: To verify the effect of vibration on the performance of electrical connectors and their components.
Vibration type: random vibration, sinusoidal vibration
(7) Mechanical impact test
Purpose: To verify the ability of the connector and its components to withstand impact or to assess its structural integrity;
Test waveform: half sine wave, square wave.
(8) Thermal shock test
Purpose: To evaluate the effect of the connector on its functional quality under rapid large temperature differences.
(9) Temperature and humidity combined cycle test
Purpose: To evaluate the effect of connectors on connector performance after storage in a high temperature, high humidity environment.
(10) High temperature test
Purpose: To assess whether the terminal and insulator properties have changed after exposure to a high temperature environment for a specified period of time.
(11) Salt spray test
Purpose: To evaluate the salt spray resistance of connectors, terminals and coatings
(12) Mixed gas corrosion test