3057P-1-501

Series:	Trimpot® 3057 - Sealed
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Resistance:	500 Ohms
Power (Watts):	1W
Tolerance:	±5%
Temperature Coefficient:	±50ppm/°C
Number of Turns:	22
Adjustment Type:	Side Adjustment
Resistive Material:	Wirewound
Mounting Type:	Chassis Mount
Termination Style:	PC Pins
Size / Dimension:	Rectangular - 0.315" x 0.190" Face x 1.250" L (8.00mm x 4.83mm x 31.75mm)

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Overview

Trimmer potentiometers, also known as trim pots, are multi-turn variable resistors that are used to adjust the electrical characteristics of circuits. A 3057P-1-501 is a trimmer potentiometer designed with a standard Bourns® pin assignment for easy connection and a 15-turn, linear adjustment feature for precision control. This article provides an overview of the 3057P-1-501\'s application field and working principle.

Applications

The 3057P-1-501 is a trimmer potentiometer with a custom axial design to ensure precise adjustment. It is widely used in various applications such as:

• Power supplies
• Timers
• Filters
• Pre-amplifiers
• Control circuits
• Medical equipment
• Automotive electronics

Working Principle

The 3057P-1-501 is a trimmer potentiometer that uses a multiturn screw to adjust its resistance value. Its linear taper provides precise, 15-turn adjustment from 0 to maximum output. The device consists of a resistive element, a wiper, and a switch. The resistive element is made of a conductive plastic and is in the shape of a helix. The wiper is attached to the screw, and it moves along the helix as the screw is turned. As the wiper moves, it makes contact with different points on the resistive element, causing the resistance value to change. The switch is used to complete the circuit and supplies the current to the component.

Conclusion

The 3057P-1-501 trimmer potentiometer is a multi-turn variable resistor with a linear taper and a 15-turn adjustment feature. It is widely used in many applications including power supplies, timers, filters, pre-amplification, control circuits, medical equipment, and automotive electronics. The device employs a resistive element, a wiper, and a switch to adjust the resistance and complete the circuit.

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