Model selection and parameter characteristics of patch potentiometer

SMD potentiometers can be said to be widely used at present, and there are many commonly used specifications and models. In addition, we also have carbon film potentiometers, sealed potentiometers, blue and white potentiometers. SMD potentiometers are mainly used in switching power supplies, home appliances, and communication products. Here I would like to tell you a few tips for choosing a patch potentiometer. First of all, we can judge whether the product meets the selection requirements from its appearance, including the logo, terminal, tap, and shaft end form. Secondly, we can judge by the quality of the skeleton or substrate used in the resistor body of the product, and select the appropriate potentiometer according to the purpose and working environment. The shape and size of the potentiometer can also be selected according to the installation method, location, space, etc., and the movement form of the potentiometer drive device should be suitable for the requirements of the adjustment method during use. Next, I will explain more product knowledge to everyone!

　　 One, potentiometer packaging method

　　 According to the production process, there are two types of potentiometer packaging: plastic molding and potting. Generally, they are based on common usage types. Secondly, the potentiometer packaging types include DIP potentiometer packaging, plug-in potentiometer packaging, and SMD potentiometer packaging. The mechanical life after potentiometer encapsulation is also called wear life, which is indicated by the commonly used mechanical durability. Mechanical durability usually refers to the potentiometer under the specified test conditions, the movable contact can be based on the total number of movements, usually "week" to indicate. The mechanical life is related to the structure, type, material and manufacturing process of the patch potentiometer, so the difference is usually quite large.

　　 2. Potentiometer specification classification

　　 1. Classified by operation mode

　　The potentiometer can be divided into manual adjustment potentiometer and electric adjustment potentiometer according to the driving mode.

　　 2. Classified by adjustment method

　　 Potentiometers can be divided into rotary potentiometers, push-pull potentiometers, and slide potentiometers according to their adjustment methods.

　　3. Classified by structural characteristics

　　 potentiometers can be divided into single potentiometers, double potentiometers, single-turn potentiometers, multi-turn potentiometers, multi-connection potentiometers, switch potentiometers and patch potentiometers according to their structural characteristics.

　　 4. Classified according to the changing law of resistance value

　　 General potentiometers can be divided into linear potentiometers, logarithmic potentiometers, and exponential potentiometers according to the changing law of resistance value.

　　Three, three-pin patch potentiometer model

Mainly include: patch potentiometer RM085G-V2, RM085G-V3, RM085G-V5, RM065-V5, RM063-H3, RM065-V1, RM063-H1, RM065C-H2, RM065-H5, RM065-V3, RM85G-V6 , RM065G-H3, RM065G-V3, RM065G-V4, RM065G-V5, RM065G-V8, RM085G-H3, RM085G-H4, RM085G-H5, RM085C-V1 and many other models.

　　 Fourth, the pin type of the patch potentiometer

　　 The pin types of patch potentiometers are three-pin, four-pin, six-pin, etc. There are many types and structures of potentiometers. The usual potentiometers are composed of a sliding shaft, a shell, three terminals and a resistor body. The types can also be divided in many ways, such as single-connection according to the number of connections. Potentiometers and multi-connected potentiometers can be divided into rotary, patch and direct sliding potentiometers according to the scheduling method. There are many other potentiometers such as linear, exponential, and logarithmic.

　　 Five, the parameter characteristics of the patch potentiometer

　　 (1) Resolution: One of the primary factors affecting the accuracy of the patch potentiometer is the resolution, which is used to indicate the percentage of the change in resistance to the total resistance caused by each turn of the moving contact on the winding.

　　 (2) Fit: Also known as fit, it is the degree of fit between the characteristics of the output function of the patch potentiometer and the required theoretical function.

　　(3) Mechanical life: The mechanical life after the pin definition of the patch potentiometer is also called wear life. Usually marked with mechanical durability.

　　 The above is the relevant introduction about the potentiometer packaging method, the potentiometer specification classification, the three-pin patch potentiometer model, the pin type of the patch potentiometer, and the parameter characteristics of the patch potentiometer. If you still don't understand the above knowledge, please consult our online customer service staff. If you need to use our products, you can call us at any time!