Bourns 3296 Series Cermet Multi-Turn Trimmer Potentiometer, 1MΩ, 25 Turn

The Bourns 3296 Series represents a high-quality line of cermet, through-hole trimming potentiometers, designed for precision circuit adjustments. These multi-turn trimmers are engineered to perform a wide variety of calibration and tuning tasks across all types of electronic equipment, offering reliable and stable performance over their operational lifetime.

A key feature is the 25-turn adjustment mechanism, which provides exceptional resolution for fine-tuning resistance values. This allows for precise control in applications such as measuring linear distance, angle, or rotation within production equipment and instrumentation. The device boasts a rotational life of 200 cycles, ensuring durability through repeated adjustments.

Construction and Design

Constructed with a robust cermet element, this potentiometer delivers stable electrical characteristics. It features a 3/8-inch square profile with a choice of side or top adjustment via a lead screw. The chevron seal design provides an IP65 environmental rating, offering protection against dust and low-pressure water jets, making it suitable for use in challenging conditions.

Technical Specifications

With a resistance value of 1 MΩ (megaohm) and a ±10% tolerance, it offers a broad adjustment range. The temperature coefficient is ±100 ppm/°C, ensuring minimal resistance drift with temperature changes. It operates reliably across an extensive temperature range from -55°C to +125°C, with a power rating of 0.5W (500mW). The through-hole mounting and SIP (Single In-line Package) style ensure secure and straightforward PCB integration.

Ideal for engineers and technicians, the Bourns 3296 Trimmer is a versatile component for prototyping, production calibration, and repair work where precise resistance setting is critical.