Bourns 3386 Series Cermet Trimmer Potentiometer, 100kΩ, Top Adjust

The Bourns 3386 Series is a high-quality range of cermet, through-hole trimming potentiometers designed for precision circuit adjustments in electronic equipment. These single-turn trimmers, available in both top and side adjustment types, provide reliable performance across a wide resistance range from 10Ω to 2MΩ with a ±10% tolerance. Their robust construction ensures stable operation in diverse environments, making them suitable for a variety of applications from prototyping to final product assembly.

Constructed with a durable cermet element, this potentiometer offers excellent long-term stability and a low temperature coefficient (TCR) of ±100ppm/°C. It operates reliably across a broad temperature range from -55°C to +125°C, with a power rating of 0.5W (500mW) and a rotational life of 200 cycles. The top-adjust version featured here allows for easy calibration with a standard adjustment tool.

Key Features & Specifications

• Element Material: High-reliability cermet for stable resistance characteristics.
• Adjustment Type: Top adjust for straightforward access and calibration.
• Mounting Style: Through-hole design for secure PCB mounting.
• Resistance Value: 100kΩ (100,000 ohms).
• Tolerance: ±10% for consistent performance.
• Power Rating: 0.5W (500mW).
• Operating Temperature Range: -55°C to +125°C.
• Temperature Coefficient: ±100ppm/°C.
• Rotational Life: 200 cycles.
• Physical Size: 3/8 inch square footprint.
• Dimensions: 33mm (Width) x 43mm (Height) x 15mm (Depth).

This component is an essential part of any electronics toolkit, ideal for setting bias points, tuning oscillator frequencies, or adjusting gain in amplifier circuits. Its through-hole design ensures a strong mechanical bond to the circuit board, while the cermet track provides a stable and precise adjustable resistance. Available