BOURNS 3386 Series Single Turn Cermet Trimmer Potentiometer, 20kΩ

The BOURNS 3386 Series is a line of high-quality, single-turn cermet trimming potentiometers designed for through-hole mounting. These precision components are engineered for reliable circuit adjustment across a vast spectrum of electronic equipment, providing stable performance and excellent durability.

These trimmers utilise a robust cermet element, offering a reliable resistance track with a wide operating range. They are available in two primary adjustment configurations to suit different board layouts and access requirements: a top-adjust type or a side-adjust type. This flexibility makes them suitable for a variety of PCB designs and assembly scenarios.

Key Features & Performance

• Wide Resistance Range: Offers a broad selection from 10 ohms up to 2 megaohms, with a standard tolerance of ±10%.
• Stable Temperature Performance: Features a low temperature coefficient (TCR) of ±100ppm/°C, ensuring minimal resistance drift across its operating range.
• Robust Construction: Built to withstand an operating temperature range from -55°C to +125°C, making it suitable for demanding environments.
• Reliable Power Handling: Rated for 0.5W (500mW), providing ample headroom for typical adjustment applications.
• Extended Mechanical Life: Designed for a rotational life of 200 cycles, ensuring long-term adjustability and reliability.

Versatility and Options

To enhance usability, the 3386 series is available with optional accessories. A finger-adjust knob can be fitted for easier manual tuning without tools. For applications requiring tool adjustment or where space is constrained, versions with an extended shaft and a cross-slot rotor are also available. The compact 3/8-inch square footprint allows for efficient use of board space while maintaining easy adjustability.