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Trimmer Potentiometers

Trimmer potentiometers are small and adjustable electrical components that provide a range of resistances. The resistances in trimmer potentiometers can be adjusted in a small range, with a screwdriver or small knob, and then locked into the adjustment position. They are typically used for fine corrections, such as adjustment in a circuit that needs precise range, or for adding a slight phase shift for audio enhancement.

3266Y-1-253RLF Application Field and Working Principle

The 3266Y-1-253RLF is a miniature trimmer potentiometer designed by Panasonic for high-precision performance. This component is small in size and capable of precise adjustments, making it ideal for delicate applications such as audio-frequency compensation, adjustments in medical equipment, or precision power supplies.

The 3266Y-1-253RLF has a low-profile height with a ceramic element for enhanced mechanical shock resistance. It is available with two spacers, a long and a short, as well as a stainless steel pin and spring clip for easy mounting. This component has a precision range of 40-1000 ohms, with maximum operating temperature rating of 85°C and a dielectric strength of 500Vdc.

The 3266Y-1-253RLF operates on the principle of resistive-divider networks. Such networks in a trimmer potentiometer have two adjustable resistors connected in series. By varying the settings of each resistor, the output resistance can be changed to adjust the circuit’s gain. In the 3266Y-1-253RLF, this adjustment is done with a metal or plastic screwdriver on the adjustment wheel. The material used in the construction of the component and its design ensure that the resistance settings remain stable and precise, even in extreme operating conditions of high temperatures and electric field strength.

Conclusion

The 3266Y-1-253RLF from Panasonic is a high-precision miniature trimmer potentiometer that is ideal for applications requiring precise resistance values and adjustments. This component features a low-profile design, ceramic element, two spacers, stainless steel pin and spring clip for easy mounting, and a precision resistance range of 40-1000 ohms. This trimmer potentiometer can be adjusted easily with a screwdriver or knob, and its resistances remain stable and precise even in harsh operating conditions.

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