Bourns 3299 Series 500k Ohm Cermet Trimmer Potentiometer, 25 Turn

The Bourns Trimpot 3299 Series is a high-quality, multi-turn trimming potentiometer designed for precise circuit adjustments. Constructed with a reliable cermet element and featuring a through-hole mount, this component is built to perform in a wide variety of electronic equipment. Its multi-turn design allows for exceptionally fine and accurate adjustment of resistance, making it ideal for applications where precision is paramount, such as calibration, tuning, and setting precise voltage levels.

This trimmer potentiometer offers a resistance value of 500k ohm with a tolerance of ±10%, ensuring consistent performance. It is engineered to withstand demanding conditions, with an operational temperature range from -55°C to +125°C and a robust rotational life of 200 cycles over its 25 turns. The device is sealed to an IP65 rating, providing protection against dust and water jets, which is crucial for reliability in industrial or harsh environments.

The 3/8 inch square form factor and availability in five popular terminal styles, including standoffs for thorough PC board washing, offer excellent design flexibility. It features a top adjustment type with a lead screw for easy access and control. With a power rating of 0.5W and a temperature coefficient of ±100ppm/°C, this trimmer provides stable and dependable operation for critical electronic circuits.

Key Applications:

• Precise calibration and tuning in electronic test and measurement equipment.
• Adjusting signal levels and bias points in audio and communication devices.
• Setting reference voltages and currents in power supplies and control systems.
• Use in industrial automation equipment for fine control adjustments.

A staple for engineers and technicians, the Bourns 3299 Series Trimmer Potentiometer combines precision, durability, and versatility in a compact, through-hole package.