1309P502

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Trimmer Potentiometers

A trimmer potentiometer, also known as a trimpot, is a small-sized adjustable or preset potentiometer used as an adjustable component. The “trim” in trimpot stands for trimming – adjusting a device or component to bring it into line with an expected value, tolerance or specification.

1309P502 Application Field and Working Principle

The 1309P502 is one type of trimmer potentiometer designed for a wide range of applications. It is a through-hole type trimmer with a maximum resistance of 50KΩ. This trimmer features 12.8mm diameter and 6mm body width making it ideal for small space applications. It comprises of one single-turn, resistive element and a solid shaft, which supports the spindle mount.

The 1309P502 has a logarithmic characteristics rather than linear taper. This means its output voltage increases (decreases) exponentially with clockwise (anti-clockwise) adjustment. The 1309Phas a rated operating power of 1W, and an operating temperature range of –25°C to +85°C.

The 1309P502 powers a wide range of devices and machines such as amplifiers, consumer electronic equipment, and audio systems. It is extremely versatile and can be used in both low and high-frequency applications as well as in circuit adjustments. The 1309P502 is also used to adjust output voltage, impedance, and frequency.

In terms of working principle, the 1309P502 functions like any other rotary potentiometer. The primary electrical characteristics of the device are the resistance and voltage. As the shaft from the device is rotated, resistance is increased and the voltage decreases. When the shaft is turned clockwise, resistance increases and voltage decreases.

The 1309P502 is constructed in a cylindrical housing composed of a two-piece molded plastic with an epoxy encapsulated body. The resistance element consists of carbon film wrapped on a cylindrical form spindle and is mounted with gold-plated shaft. The shaft is attached to a slotted brass knob which acts as the control knob.

The 1309P502 is composed of two separate components: the resistor element and the control knob. The resistor element is composed of resistive film deposited on a thin foil substrate. The resistor element is then encapsulated with the two-piece plastic casing. The control knob is mounted directly to the resistor element, allowing for precise adjustment.

Overall, the 1309P502 is a versatile and reliable trimmer potentiometer used in a variety of different applications. Its wide range of applications, logarithmic taper, and easy-to-use shaft make it an ideal choice for many electronics projects. It is a dependable and cost-effective solution for any circuit adjustment or component needing to be adjusted to a specific resistance or voltage level.

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