What’s the Common environmental performance of push pull self-locking circular connector?
The push pull self-locking circular connector includes temperature, humidity, salt spray, vibration and impact.
1. The Temperature resistance of circular connector:
The current maximum operating temperature of the connector is 200°C (except for a few high temperature special connectors), and the minimum temperature is -65°C. As the connector works, current generates heat at the contact point, causing temperature rise, so it is generally believed that the operating temperature should be equal to the sum of the ambient temperature and the temperature rise of the contact. In some specifications, the maximum allowable temperature rise of the connector at the rated operating current is specified.
2. The Moisture resistance of push-pull connector:
Intrusion of moisture can affect the insulation performance of the connector and corrode metal parts. The constant humidity and heat test conditions are relative humidity of 90%~95% (up to 98% according to product specifications), temperature of +40±20°C, and test time of at least 96 hours according to product specifications. Alternating heat and humidity tests are more severe.
3. The Salt spray resistance:
When the connector is operated in an environment containing moisture and salt, the metal structure parts and the surface treatment layer of the contact parts may cause galvanic corrosion, affecting the physical and electrical properties of the connector. In order to evaluate the ability of the electrical connector to withstand this environment, a salt spray test was specified. It suspends the connector in a controlled temperature test chamber and uses a predetermined concentration of sodium chloride solution to be sprayed with compressed air to form a salt spray atmosphere. The exposure time is specified by the product specification and is at least 48 hours.
4. The Vibration and Impact:
Resistance to vibration and impact are important properties of electrical connectors, especially important in special application environments such as aerospace, railway and road transport. It is to test the ruggedness and electrical contact of electrical structures of electrical connectors and the reliability of important indicators. There are clear rules in the relevant test methods. The peak acceleration, duration, and pulse shape of the shock and the duration of electrical continuity interruption should be specified in the impact test.
5. The Other environmental performance:
According to the requirements of use, the other environmental performance of the electrical connector is hermeticity (air leakage, liquid pressure), liquid impregnation (tolerant to specific liquids tolerance), and low pressure and so on.
Post time: Mar-20-2019