3214W-1-503E Bourns TRIMMER 50K OHM 0.25W J LEAD TOP


The Bourns 3214W-1-503E is a trimmer potentiometer, commonly known as a trimmer, with the following specifications:


  • Manufacturer: Bourns
  • Part Number: 3214W-1-503E
  • Type: Trimmer Potentiometer
  • Resistance: 50K Ohms
  • Power Rating: 0.25W (1/4W)
  • Package/Enclosure: J Lead Top
  • DataSheet

    3214W-1-503E PDF

Key Features:

  • Trimmer Potentiometer: A trimmer potentiometer is a type of adjustable resistor used for calibrating or fine-tuning circuit parameters.

  • Resistance (50K Ohms): This trimmer has a resistance of 50,000 ohms, which can be adjusted within its specified range.

  • Power Rating (0.25W): The power rating of 0.25W denotes the maximum power the trimmer can handle without damage, generally associated with its ability to dissipate heat.

  • Package/Enclosure (J Lead Top): The J Lead Top package style refers to the physical design and layout of the trimmer's leads.

Common Uses:

  • Calibration: Trimmer potentiometers are often used for calibrating circuits, adjusting voltage levels, or setting bias currents.

  • Fine-tuning: They are employed for fine-tuning parameters in electronic circuits, such as adjusting gain, offset, or frequency response.

  • Circuit Adjustment: Trimmers are used in various electronic devices and circuits where precise adjustments are required, like in audio equipment, instrumentation, or communication devices.

Installation and Adjustment:

  • Mounting: Ensure the trimmer is mounted securely on the circuit board or enclosure.

  • Adjustment: Using a compatible tool (such as a screwdriver or trimmer adjustment tool), the resistor can be fine-tuned to set the desired resistance value within its specified range.

  • Caution: Exercise care while adjusting the trimmer to avoid mechanical damage or exceeding the specified power rating.


  • Datasheet: Refer to the manufacturer's datasheet for detailed specifications, including mechanical dimensions and electrical characteristics.

  • Environmental Factors: Consider operating conditions like temperature range and humidity to ensure the trimmer's reliable performance.

  • Compatibility: Ensure the trimmer potentiometer is compatible with the circuit's voltage and current requirements.

The Bourns 3214W-1-503E trimmer potentiometer with a resistance of 50K ohms and power rating of 0.25W is a versatile component used for precise circuit adjustments in various electronic applications. When integrating this trimmer into your circuit design, follow the manufacturer's guidelines for optimal performance and reliability.