Tap type potentiometer procurement points to note

　　When purchasing potentiometers in many factories, they are generally communicated by telephone, and they are also used to describe the performance of the required potentiometer by telephone. In fact, when purchasing potentiometers, there are several key points that must be clear, so that you can buy the right potentiometer.

　　1. Model

　　When purchasing a potentiometer, the first thing to understand is the type or type of potentiometer. That gives us a general direction down there.

　　3, shaft type or sliding handle type or dial type and size length.

　　For example, a rotating potentiometer with a handle, we must first determine whether it is a die-cast iron handle tap type potentiometer or a plastic handle, whether it is a plum knob or a semi-circle, how long it is, with or without nuts. Is the dial to see whether it is black or white, how much diameter, how much thickness, etc., these are to be clear.

　　4, the form of the terminal.

　　See if the terminal is straight or curved. Maybe look at the Angle of the terminal heel. Generally 180 degrees is a straight foot, 90 degrees is a curved foot.

　　5, the way of wiring.

　　6, the presence or absence of segment points.

　　Is the potentiometer rotated to the middle of the positioning? These general sliding potentiometers will encounter, and some rotating potentiometers with handles will also have such problems.

　　7, there is no middle tap. Tap potentiometer This one needs to be read.

　　8, potentiometer use.

　　Potentiometer and circuit board is what tap type potentiometer wiring method, is it used to purchase, pay attention to spot welding wire or directly plugged into the circuit board and so on.

　　The first thing to look at is whether this is a dial potentiometer or a rotary potentiometer or a straight slide potentiometer, or just fine tuning the resistance. After the tap potentiometer is determined, then determine whether the dial potentiometer is single or double, how much is the stroke of the movement, only to determine these have a general pattern, and this most affects the price of the potentiometer.

　　2, resistance and linear requirements.

　　After determining the appearance of the potentiometer, then it is necessary to know the purchase, pay attention to the point how much is the resistance value of the potentiometer, and how much is the deviation of the resistance value accepted by the tap type potentiometer? What's the linear value of this resistance and so on. For example: B10K, that is marking the potentiometer is 10K resistance value, linear B.

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