Digital potentiometer, potentiometer made of integrated circuit technology; A series of resistors are integrated into a chip, and MOS tube is used to control the series of resistors. Network connection with the public end; The control precision is determined by the control bit, generally 8, 10, 12, etc. It can be used in analog circuit to do impedance matching, amplification loop magnification control, etc. Avoid trouble of jitter adjustment operation; It provides a convenient way for automatic gain, voltage change and impedance matching of equipment. Multi-turn precision adjustable potentiometer: in some industrial control and instrument circuits, high adjustable precision is usually required. In order to meet the needs of production. This type of circuit uses a multi-turn adjustable potentiometer. This kind of potentiometer has a large step range! High precision. Potentiometer, Carbon Film: use Carbon Film as resistance Film. Metal Film: A special cermet Film made of ceramic and Metal materials is used as resistance Film. Wirewound: use Wirewound as a resistor. Compared with carbon film potentiometer or porcelain gold film, it can withstand higher power. Structure classification rotation type, common form. The usual rotation Angle is about 270 ~ 300 degrees.
2.2K
WTH118 2K2 4 PIN
WTH118 1K Ohm
WTH118 470R 1A Rotary Potentiometer
WTH118 680R Carbon Film
WTH118
For example, in humidity control, resistance values are displayed by controlling the different humidity. Four, potentiometer application Potentiometer is widely used, in many products will be applied, in power products, such as: switching power supply, UPS power supply, high-frequency switching power supply, inverse frequency power supply, charger, frequency converter and so on to use blue and white fine adjustable potentiometer, precision potentiometer; In home appliances, such as induction cooker, humidifier, air conditioning, range hood, lighting, electric fan and other small household appliances control board; On communication product for example: intercom of equipment of radio, catv, tone station, window can use patch adjustable potentiometer, iron case potentiometer to wait a moment.
potentiometer
B10K 8-PIN 103
B20K 8-PIN 203
B50K 8-PIN 503
B100K 8-PIN 104
B500K 8-PIN 504 Ohm
