Precautions when using the tact switch

Publish Time:2022-11-09 Author:jiaxi Views:92


1. When welding the tact switch terminals, if a load is applied to the terminals, there may be loosening, deformation and deterioration of electrical characteristics due to different conditions. Please pay attention when using them.

2. When using a through-hole printed circuit board or a circuit board other than the recommended one, the influence of thermal stress will change, so please confirm the soldering conditions beforehand.

3. When welding for two times, please do it after the first welding part has returned to normal temperature. Continuous heating may cause deformation of the outer part, loosening of the terminals, falling off and deterioration of electrical characteristics.

4. Regarding the setting of welding conditions, it is necessary to confirm the actual mass production conditions.


5. The product is designed and manufactured on the premise of DC resistive load. When using other loads [inductive load, capacitive load], please confirm separately.

6. For the mounting holes and patterns of the printed circuit board, please refer to the recommended dimensions recorded in the product drawings.

7. The switch should be used for the structure that is directly operated by a person. Please do not use it for the mechanical detection function.

8. When the light touch switch is operated, if the load above the specified value is applied, the switch may be damaged. Please be careful not to apply more than the specified force on the switch.

9. Please avoid the usage of pressing the operation part from the side.


10.For the flat shaft type, press the center of the switch as much as possible. For the hinge structure, the pressing position of the shaft will move when pressed, please pay special attention.

11. After the switch is installed, please contact a professional when it passes through the heat storage hardening furnace due to the hardening of the adhesive of other parts.

12. If the surrounding materials of the whole machine using the switch generate corrosive gas, it may cause poor contact and other phenomena, so please make full confirmation in advance.

13. The carbon contact point has the characteristic that the contact resistance changes due to the pressing load. When used in a voltage divider circuit, etc., please use it after sufficient confirmation.

14. For models other than the airtight type, please pay sufficient attention to the intrusion of foreign objects.