- ISO 9001:2015 CERTIFIED FACILITY
Precision Wire Wound Resistors, Sensors & Shunts — Manufactured in the USA Since 1932
Custom-built to your exact specifications. Tolerances to ±0.005%. TCRs to 0±1 ppm/°C. Resistance values from 0.001Ω to 10MΩ. Engineering samples in 7–10 days.
TOLERANCES TO
±0.005%
TCRs DOWN TO
0±1 ppm/°C
RESISTANCE RANGE
0.001Ω – 10MΩ
PROTOTYPE SAMPLES
-10 Days
Engineering Capabilities
Every component is custom wound to your specifications and 100% tested for
defense, aerospace, medical, and industrial applications.
Precision Power Resistors
Wire wound power resistors in 2-terminal and 4-terminal (Kelvin) configurations from 0.5W to 25W+. Epoxy or silicone coated. Tolerances to ±0.05%, TCRs to 0±10 ppm/°C. Resistance values from 0.015Ω to 4MΩ.
Ultra-Precision & Reference Resistors
Laboratory-grade resistors with tolerances to ±0.005% and TCRs to 0±1 ppm/°C. Stability of ±0.001%/year. Ideal for calibration, test equipment, and measurement standards. Values from 0.1Ω to 10MΩ.
Current Sensing Shunt
Precision 4-terminal and 2-terminal shunts in both surface mount and through-hole packages. Values down to 1 milliohm. Low EMF construction for accurate voltage-drop measurements under load.
Temperature Sensors & Compensators
Wire wound RTD-alternative sensors that track the platinum DIN curve at a fraction of the cost. TCR characteristics to +6000 ppm/°C. Custom compensators for stabilizing negative drift in precision circuits.
Why Precision Resistor Company?
For over nine decades, we have set the standard for wire wound precision. We don’t just build components; we build certainty.
- 90+ Years of Expertise
Founded in 1932, PRC has manufactured precision wire wound components through every generation of electronic design. Our manufacturing techniques are refined by decades of real-world production for defense, aerospace, medical, instrumentation, and industrial applications.
- 100% USA Manufactured
All PRC products are designed and manufactured at our facility in Clearwater, Florida. Domestic production means shorter lead times, direct engineering support, and full traceability.
- Any Quantity, Any Spec
Whether you need 5 pieces for prototype evaluation or 50,000 for production, every part is custom wound to your specifications and 100% tested to specified limits. Engineering samples are typically available in 7–10 business days at no cost.
- Pure Copper Construction
All PRC components use hot-tinned, oxygen-free, high-conductivity commercially pure copper terminals — delivering low EMF (<0.3 to 1.5 μV/°C), superior solder wetting, longer shelf life, and higher current-carrying capacity compared to copper-clad or plated alternatives.
- Part of the Electro Technik Industries Family
PRC is a subsidiary of Electro Technik Industries, Inc. (ETI), a privately held manufacturer of passive electronic components with 15+ subsidiary companies spanning resistive products, magnetics/transformers, and RF/microwave components. ETI’s family of companies provides complementary capabilities for complex designs requiring multiple passive component types.
Ready to specify precision?
Contact our engineering team directly to discuss your requirements. We provide samples typically within 7-10 business days.