EVM-1DSX30B15 Potentiometers, Variable Resistors

Trimmer Potentiometers are used in a wide variety of applications and the EVM-1DSX30B15 is one of the most versatile and robust of all of them. This product is designed to provide reliable operation with various loads including low-noise, high-performance devices and integrated circuits.

The EVM-1DSX30B15 is a three-terminal trimming potentiometer with a resistance of 1.25 kOhms and an operating voltage rating of 25Vdc. The device has a linear adjustment range of 5 to 99 degrees, providing excellent control and accuracy for applications such as circuit tuning, filter tuning, and so on. In addition, it is built with an SPRS (Separately Paired Resistance Segment) connection, enabling the user to select any two contacts separated by a pre-set distance. This makes it very flexible for use in a wider range of applications.

The working principle of the EVM-1DSX30B15 is based on the use of a variable resistor (VR) that can be set to any desired value within its specified range. The VR has three independent terminals – wiper, end-to-end (EtoE) and set. When adjusting the resistance, the wiper terminal is moved by applying a voltage across EtoE and set terminals. This movement is detected by the position sensor, which then translates this movement into the necessary resistance. The wiper terminal can be adjusted the to desired resistance without changing the end-to-end resistance, allowing for accurate tuning and control.

The EVM-1DSX30B15 is suitable for a wide range of applications, including power supplies, UPS systems, frequency control, automotive ECU and audio systems, as well as for general-purpose applications. Its excellent linearity and robust construction allow it to be used in environments with high vibration and shock levels, while its compact size, low cost and long life make it ideal for applications where cost and installation space are critical factors.

In conclusion, the EVM-1DSX30B15 is a versatile and robust trimmer potentiometer with excellent performance, flexibility, and reliability. With its low cost and long life, it is an ideal choice for a wide variety of tasks, from simple circuits to more complex systems.