1K Rotatory Variable Potentiometer with a 4mm D-Shaft

1K Rotatory Variable Potentiometer with 4mm D Shaft offers precise and reliable resistance variation for fine-tuning electronic circuits and providing user input. This specific model features a 1-kiloohm (1 kΩ) resistance value, making it highly suitable for applications requiring moderate current control or precise voltage division in a low-resistance range. The key feature is its 4mm diameter D-shaft, which ensures an excellent grip for common knobs and provides a stable, anti-rotation connection, preventing slippage during adjustment. You can easily integrate this component into audio equipment, motor speed controllers, and sensor calibration circuits, achieving stable performance and accurate control over the desired parameter.

Key Features:

• Accurate Resistance: Provides a nominal 1 kΩ resistance value for precise circuit adjustment and measurement.
• 4mm D-Shaft: The industry-standard D-cut shaft allows for easy, secure mounting of knobs and prevents rotational slippage.
• Single Turn Operation: Offers quick, continuous adjustment of resistance from 0 Ω up to the nominal value.
• Panel Mountable: Features a threaded bushing and nut, allowing you to securely mount the potentiometer on control panels and enclosures.
• Versatile Use: Functions as a voltage divider or a variable resistor, accommodating a wide range of electronic control needs.

Technical Specifications:

• Nominal Resistance: 1 kΩ (1000 Ohms)
• Tolerance: ± 20% (Standard)
• Power Rating: ≈ 0.1 W to 0.5 W (Varies by specific model/manufacturer)
• Taper Type: Linear (B-Taper) or Logarithmic (A/C-Taper, depending on selection)
• Maximum Operating Voltage: ≈ 50 V DC / 25 V AC

Mechanical Specifications:

• Rotation Angle: ≈ 300° ± 5°
• Mounting Type: Panel Mount with Threaded Bushing
• Shaft Material: Metal or Plastic
• Termination: 3-Pin PCB or Solder Lugs

Dimensions:

• Shaft Diameter: 4 mm (D-cut)
• Shaft Length: Varies (Typically 15 mm to 25 mm)
• Body Diameter: ≈ 16 mm to 17 mm
• Weight: ≈ 5 g to 10 g

Pinout and Wiring:

• Pin 1 (Terminal A): Connect to Ground (GND) or the lower voltage rail.
• Pin 3 (Terminal C): Connect to V_CC or the higher voltage rail (Max. 5V in typical micro-controller circuits).
• Pin 2 (Wiper/Output): Connect to the input pin of the circuit (e.g., analog input on a microcontroller) that reads the variable voltage.
• Voltage Divider Configuration: Pins 1 and 3 are across the voltage source; Pin 2 outputs the proportional voltage.
• Variable Resistor (Rheostat) Configuration: Use Pin 1 or Pin 3 (one end) and Pin 2 (Wiper) to control current flow.

Datasheet Reference:

• Download 1K Rotary Potentiometer Specification

Commonly Used in:

• Microcontroller Projects: Providing variable analog input for control systems.
• Audio Equipment: Serving as volume or tone control knobs in amplifiers and mixers.
• Laboratory Power Supplies: Adjusting voltage or current limits.

Applications:

• Motor Speed Control: Adjusting the duty cycle of a PWM signal.
• Light Dimming Circuits: Providing variable resistance to control LED brightness.
• Reference Voltage Setting: Precisely setting a stable reference voltage for sensors or comparators.

Equivalent Models:

• 10K Rotary Potentiometer: Used for higher input impedance circuits.
• Trimmer Potentiometers: Smaller, multi-turn versions for PCB-level, infrequent calibration.
• Digital Potentiometers: ICs that control resistance electronically via digital communication (e.g., I²C, SPI).

Package Includes:

• 1 x 1K Rotatory Variable Potentiometer with 4mm D Shaft
• 1 x Nut and Washer for Panel Mounting