jbcapacitors blog

Wirewound potentiometers remain one of the most reliable components for precise resistance adjustment in measurement and control systems.

The jb® JBR-BA ~ JBR-BG family covers a wide performance range, from compact single-turn models to multi-turn lock-type units used in calibration and automation equipment.

1. Overview

Each JBR model is based on a precision wire-winding element that ensures consistent linearity and minimal drift over time. The series offers several mechanical formats — single, five, or ten turns — with optional shaft types and mounting styles to match instrument or panel requirements.

2. Key Technical Characteristics

• Linearity tolerance ±0.5%
• Temperature coefficient ±100 ppm/°C
• Operational temperature −55°C to +125°C
• Rotational life 10,000 cycles (typ.)
• Insulation resistance ≥ 1 GΩ

These parameters make the series suitable for long-term stable adjustment in control loops, test instruments, and precision power supplies.

3. Design Flexibility

All JBR models can be customized — different shaft shapes or lengths, lock mechanisms, and alternative turn counts (3 / 5 / 10 turn). This flexibility allows engineers to standardize on a single platform while covering multiple mechanical interfaces.

4. Typical Applications

• Voltage or current calibration in measurement systems
• Gain or offset adjustment in audio and amplifier designs
• Set-point control in industrial automation
• Feedback trimming in power electronics

Video Demonstration