If you’re looking for a robust wirewound trimmer that offers both high accuracy and long-term reliability, the Suntan TSR Series delivers a complete range of options tailored to industrial, consumer, and power applications.
This series is designed for engineers seeking fine control over signal calibration, circuit tuning, or energy dissipation. Whether your priority is space-saving size, digital adjustability, or high-wattage stability, there’s a TSR model that fits your needs.
Watch Introduction Video
Watch our short video to explore how Suntan’s TSR series covers your circuit tuning and power needs with one cohesive product line.
TSR Series at a Glance – Designed for Every Circuit Need
TSR Family Overview
• TSR-01 / TSR-02 / TSR-04 / TSR-05 / TSR-06 / TSR-07: Multi-turn or single-turn wirewound trimmers designed for high-precision voltage adjustment and signal calibration.
• TSR-03: Compact trimmer potentiometer for cost-efficient tuning in tight PCB layouts.
• TSR-08 / TSR-09: Specialty rotary potentiometers using carbon film or conductive plastic, suitable for consumer or rugged rotary control.
• TSR-11 / TSR-12 / TSR-13: Digital or encoder-style potentiometers with user-friendly interfaces for instruments and front panels.
• TSR-14 / TSR-15 / TSR-16: High-power wirewound resistors designed for energy discharge, braking systems, or dummy loads.
Key Applications
• Industrial Electronics: Balancing and feedback control in motor drives, inverters, and automation panels
• Measurement Equipment: Precision signal trimming, calibration, and simulation
• Consumer Interfaces: Volume and contrast tuning, analog screen controls
• Power Circuits: Heat dissipation in motor braking or heavy-load testing
Why Choose Suntan TSR?
• Rugged wirewound construction ensures long-term performance
• Broad resistance range and tolerance options
• Compact and panel-mount designs available
• Trusted by engineers across automation, audio, and energy sectors
Suntan Technology – All Kinds of Capacitors.
We don’t just offer specifications — we deliver confidence for your design and sourcing decisions.


