67YR250KLF Datasheet/PDFTrimmer Potentiometers
67YR250KLF Application Field and Working Principle
The 67YR250KLF trimmer potentiometer is a miniature, surface mount adjustable resistive element that is used for precise setting or tuning of electrical or electronic circuits. The potentiometer type is single-turn cermet with linear eutectic (semi-conductive) element and a plastic shaft support. The resistance range is 250k ohms and the product is offered in a 6-pin 3.2 mm form, with rotational adjustments of +/- 40° maximum.
Particulars
The trimmer potentiometer is available in die-cast zinc alloy housing and molded end caps with 6 pins. It is intended for use in manual adjustments, with limited rotational life (around 15-25 turns). The resistance range is 250k ohms and the product provides 0.1W rating with ceramic element and 2W rating with eutectic element. The temperature range is - 25°C to + 85°C.
Applications
The 67YR250KLF trimmer can be used in a variety of applications, including audio or data processing and control systems. It is commonly used in industrial, automotive, communications, instrumentation and microphone systems. Since this trimmer potentiometer offers precise adjustment, it can be used to adjust critical parameters in sensitive systems such as frequency generators, oscillators and filters. The device is also used to make fine adjustments of levels or signals, controlling the output of audio amplification circuits and for setting voltages in power supplies.
Working Principle
A trimmer potentiometer is a type of variable resistor that is used to adjust the output voltage of an electronic circuit. The device consists of three terminals, one of which is connected to the reference voltage (the adjustable end), and the other two are connected to the external circuit. When a voltage is applied across the device, the resistance between the two terminals varies according to the position of the adjustable end. As the adjustable end is moved away from its reference voltage, the resistance between the two terminals reduces, allowing more current flow. As the adjustable end is moved closer to the reference voltage, the resistance between the two terminals increases, restricting the current flow.
The adjustment efficiency and performance of the trimmer potentiometer is determined by the type of material used for the element, its physical body and the resolution of its construction. For high precision applications, the trimmer type should offer resolution of 0.001 inches and use lapped elements to ensure reliable contact. To ensure long-term reliability and wear resistance, it is also important to use a sealed housing with a plastic shaft support. In order to protect against accidental adjustment, a locking mechanism should also be used.
Conclusion
The 67YR250KLF trimmer potentiometer is an accurate and reliable device used for manual adjustment of electrical and electronic circuits. It offers precise adjustments of levels or signals, controlling the output of audio amplification circuits and for setting voltages in power supplies. The device is available in a die-cast zinc alloy housing and molded end caps and offers a resistance range of 250k ohms. It is intended for use in manual settings, with limited rotational life and offers 0.1W rating with ceramic element and 2W rating with eutectic element.
The 67YR250KLF trimmer works on the principle of variable resistance and consists of three terminals, one of which is connected to the reference voltage (the adjustable end). It offers high precision adjustment, with a resolution of 0.001 inches and lapped elements for reliable contact. In order to protect against accidental adjustments, the device should have a locking mechanism for long-term reliability and wear resistance.