3009P-1-100LF

Trimmer Potentiometers

The 3009P-1-100LF is an adjustable trimming potentiometer (variable resistor) manufactured by Vishay. It is mainly used for fine tuning and adjusting an electrical output current/voltage. The device has a 3 terminal construction inside an industry standard package, making it an ideal component for applications requiring precision adjustments.

Application Field and Working Principle

The 3009P-1-100LF is specifically designed for the task of setting an electrical output voltage or current over a range of known parameters. It is often employed in the control mechanisms of audio equipment, automotive systems, communications devices, instrumentation and industrial control systems. In order to control the output of a circuit, these types of potentiometers employ a rotary motion to move an electrical contact arm across the surface of a resistive element. This resistance is then translated into an electric current, depending on how the contact has been adjusted.

These particular trimmers feature wire leads which make them can be incorporated into various circuit assemblies. They are commonly used in relay controllers that regulate the output current, and are also useful in system PCB design. This type of trim-pot also features an end stop design with built-in self-lock which ensures the mechanical position remains fixed.

Design Style and Electrical Characteristics

The 3009P-1-100LF features a 3-terminal construction, with a resistance value of 100Ω and tolerance of ± 10%. It has a rotary angle of 270°, temperature coefficient of ± 100ppm/°C, and mechanical life rating of 10,000 cycles. The maximum power dissipation of the trim-pot is 0.3W. It has two-piece bushing and case construction with a superior insulation resistance greater than 500MΩ. The maximum voltage between terminals is 30VAC or 60VDC.

The 3009P-1-100LF is packaged in an industry standard 3-terminal package easily integrated into a circuit design. It is also hermetically sealed in a lead-free, UL approved, surface mountable, plastic body package, allowing for easy installation in confined spaces. It has an overall size of 6.7 x 8.6mm, and a weight of 17.6g.

Applications

This model of trimmer is ideal for applications that require rapid and precise adjustment of electrical output voltage or current. Its features make it suitable for use as an amplifier bias control, voltage or current stabilization, and sensitivity settings for a variety of electronic circuits. Its versatility makes it invaluable in various types of equipment such as amplifiers, computer systems, laboratory and industrial control systems, and communication systems.

Conclusion

The 3009P-1-100LF is a precision trim-pot capable of rapidly and accurately adjusting electrical output voltage or current. Its adjustable construction provides a wide range of options for use in audio equipment, automotives systems, instruments, communications devices and industrial control systems. Its design ensures a precision adjustment of the contact arm across the resistive element, which in turn yields an electric current, enabling the required voltage or current output.