BOURNS 3386 Series Cermet Trimming Potentiometer, 5kΩ, Top Adjust

The BOURNS 3386 Series cermet trimming potentiometer is a through-hole component designed for precise circuit adjustment in a wide array of electronic devices. Its single-turn operation provides straightforward and reliable calibration for everything from industrial controls to consumer electronics, ensuring optimal performance in your circuits.

Housed in a compact 3/8-inch square form factor, this top-adjust trimmer is built for stability. The cermet resistive element offers excellent long-term reliability and a stable temperature coefficient, making it suitable for environments where consistent performance is critical.

Key Features and Performance

• With a resistance value of 5kΩ and a tolerance of ±10%, it offers dependable adjustment within its range.
• It boasts a robust rotational life of 200 cycles, ensuring it can withstand repeated tuning over the product's lifetime.
• The component is rated for 0.5W (500mW) of power and can operate reliably across an extensive temperature range from -55°C to +125°C.
• Its temperature coefficient (TCR) is a stable ±100ppm/°C, minimising resistance drift with temperature changes.

Design and Mounting

As a through-hole device, it is designed for secure soldering onto printed circuit boards (PCBs), providing a strong mechanical and electrical connection. The top-adjust configuration allows for easy access and adjustment once the board is assembled. For user convenience, this model is available with an optional knob for finger adjustment or with an extended shaft and cross-slot rotor for tool-based tuning.

Applications

This versatile trimmer performs a variety of circuit adjustments in all types of electronic equipment. It is an essential component for calibration, offset nulling, and setting reference voltages or currents in prototypes, production runs, and repair work.