When choosing a tactile switch, it is important to pay attention to the following aspects:

1、Type: There are various types of tactile switches, including single pole single throw (SPST), double pole double throw (DPDT), etc. Choosing the type that suits your circuit requirements is very important to ensure that the switch can meet the required functionality.

2、Current and voltage level: Confirm whether the rated current and voltage level of the tactile switch meet the requirements in your circuit. If the current or voltage is too high, the switch may not work properly or even be damaged.

3、Size and installation method: Choose the appropriate size and installation method for the touch switch based on your device size and installation requirements. Ensure that the switch can be easily installed on the device and does not take up too much space.

4、Durability and lifespan: Considering the durability and lifespan of the switch, choose products with reliable quality and long service life. Some high-quality brands' tactile switches have undergone rigorous testing and have a long service life and good durability.

5、Waterproof and dustproof performance: If your device needs to work in a humid or dusty environment, you can consider choosing a touch switch with good waterproof and dustproof performance to ensure stable operation of the device.

6、Touch and operation sensation: Some tactile switches have different touch and operation sensations, including pressing force, button rebound, etc. Choosing a switch that suits your touch and operating habits can improve the user experience.

7、Price and brand: Consider the price and brand of the switch, and choose products with high cost-effectiveness and good reputation. Don't just pursue low prices and ignore quality and reliability.

8、Additional features: Some tactile switches may have additional functions, such as indicator lights, fire-resistant materials, etc. Choose products that require these additional features as needed.

In general, when choosing a tactile switch, it is necessary to consider the above factors comprehensively to ensure that you choose a product that suits your circuit needs, while also having good quality and performance.