3057J-1-103

Trimmer Potentiometers

Introduction

A trimmer potentiometer is a resistive component used in circuit balancing. They can be used to adjust resistance in a specific region of an electronic circuit, such as to adjust the gain of an amplifier. Trimmer potentiometers are available in two types - single turn and multi turn. The 3057J-1-103 is a single-turn trimmer potentiometer.

Application Field

The 3057J-1-103 is a single turn trimmer potentiometer used in a variety of applications, including test and measurement equipment, audio/video applications, automotive, communications, elevator controls, household appliances, industrial computers, and more. It is often used in high-end audio and other precision electronics due to its low-noise characteristics and ease of use.

This trimmer can be used for fine-tuning and calibration, relatively small adjustments, and for converting linear and rotary motion into a variable voltage. It is often used in conjunction with a mechanical/electrical switch to adjust the current of a device. Some applications of the 3057J-1-103 include:

• Motor speed controllers
• Telephone switching systems
• Channel identification technology
• Phase locked audio systems
• Power supply regulation
• Position and speed sensing
• Instrumentation and control
• Analog signal control
• Medical equipment

Working Principle

Trimmer potentiometers are adjustable resistors which are typically used when a precise level of resistance needs to be set. The 3057J-1-103 is a single-turn type of trimmer potentiometer, meaning that it has a single adjustment point; the resistance can only be changed by rotating the control knob. This is in contrast to the multi-turn type, which has several adjustment points and therefore can be adjusted more precisely.

The 3057J-1-103 has an internal resistance that ranges from 0 ohms to 100 ohms. It is typically biased at a nominal 10-ohm level, meaning that the internal resistance is set to about 10 ohms unless the knob is adjusted. The resistance of the 3057J-1-103 can be adjusted by turning the control knob clockwise or counterclockwise to increase or decrease the resistance, respectively.

The 3057J-1-103 has a rated power of 0.3 watts and a maximum voltage rating of 30 volts. This means that the device should not be used in applications where AC or DC voltages greater than 30 volts are present, as this can cause the device to fail. The 3057J-1-103 also has a temperature coefficient of 500 ppm/°C, meaning that the resistance of the device will change with changes in temperature.

Conclusion

The 3057J-1-103 trimmer potentiometer is a single-turn type of trimmer which is used in a variety of applications, including test and measurement equipment, audio/video applications, automotive, communications, elevator controls, and more. It is typically biased at 10 ohms and has an adjustable resistance range of 0-100 ohms. The maximum voltage rating is 30 volts and the temperature coefficient is 500 ppm/°C. The 3057J-1-103 is a versatile and low-noise trimmer potentiometer which is used in high-end audio and other precision electronics due to its ease of use.