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1K Preset Variable Resistor – Potentiometer (Pack of 2)

1K Preset Variable Resistor – Potentiometer (Pack of 2)

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ComponentSpecification
Resistance Value1K Ohms (102)
Tolerance±20% to ±30%
Power Rating0.1W (100mW)
Adjustment TypeTop Adjustment (Single Turn)
Mounting TypePCB Through-Hole
Package TypeRM065
Price
₹ 12.71 ₹ 12.71
(Tax included)

Product Description The 1K Ohm RM065 Trimpot Trimmer Potentiometer is a compact, single-turn variable resistor designed for direct PCB mounting. Also known as a trimpot or preset, it is specifically engineered for circuit calibration and fine-tuning where space is at a premium. This 1K ohm version is frequently used in low-resistance voltage divider circuits and for setting bias points in transistor-based designs. Its miniature open-frame design makes it an essential component for high-density electronic prototypes.

Key Features

  • Precise Calibration: Ideal for initial circuit tuning and long-term stable performance in semi-permanent settings.

  • PCB Friendly: Standard 3-pin configuration with a 5mm pitch for easy soldering and stability.

  • Compact RM065 Package: Small footprint (approx. 7mm x 6.5mm) for space-constrained boards.

  • Simple Adjustment: Top-access screwdriver slot allows for quick, hassle-free resistance changes during testing.

  • Reliable Performance: Features a carbon film resistive element for smooth linear tapering and consistent contact.

Technical Details

  • Resistive Element: Carbon film material ensuring a standard linear (B) taper response.

  • Voltage Rating: Supports a maximum operating voltage of 50V DC across outer terminals.

  • Rotational Angle: Total mechanical rotation is approximately 210° to 270° with a single turn.

  • Torque Range: Smooth rotational torque between 20 to 200 gf.cm for fine adjustment control.

  • Insulation Resistance: Rated at more than 100MΩ at 100V DC for signal integrity and safety.

  • Operating Temperature: Reliable performance across a range of -10°C to +70°C.

  • Residual Resistance: Low residual resistance, typically less than 5% of the total 1K value.

  • Mechanical Life: Designed for calibration cycles, with a rotational life of around 20 to 100 cycles.

  • Humidity Stability: Tested to withstand high humidity (90% R.H.) with minimal resistance drift over time.

  • Marking Code: Clearly labelled with "102" (10 x 10^2) for quick value identification in kits.

  • Mounting Pitch: Standard lead spacing of 5mm (bottom) and 2.5mm (top) for breadboard compatibility.

  • Load Life: Maintains stability within ±5% resistance change after 3 hours of loaded operation at rated power.

  • Environmentally Robust: Enclosed cover or open-frame designs offer varied levels of protection against dust.

  • Weight: Extremely lightweight at approximately 0.1g per unit, perfect for portable electronics.

Prototyping and Engineering Tips from Robogears

  • 9V Battery Use: In 9V battery projects, use this 1K preset as a variable voltage divider to provide a reference voltage for low-impedance op-amp comparators.

  • 18650 Cell Calibration: Ideal for fine-tuning the low-voltage cutoff in custom 18650 battery protection or monitoring circuits where higher precision is needed.

  • Resistance and ICs: Perfect for adjusting the contrast of 16x2 LCD modules or setting the output current of an LM317 voltage regulator.

  • Noise Management: For sensitive analogue signals, place a small 10uF electrolytic capacitor near the wiper pin to stabilise the output voltage during adjustment.

  • Related Products: We recommend keeping a Precision Screwdriver Set and a Digital Multimeter on hand to verify your exact resistance settings.

Package Includes

  • 2 x 1K Ohm RM065 Preset Variable Resistors.

Disclaimer: Images are for illustration purposes only. Actual product may vary slightly in physical appearance or marking based on the production batch.