TH0320 Reference Resistance Standard

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The TH0320 series is a high-precision, ultra-stable reference-grade standard resistor family engineered for demanding calibration and metrology environments. Built with advanced precision winding and stress-free structural techniques, the TH0320 delivers exceptional long-term stability, low temperature coefficient, and high repeatability under both AC and DC measurement conditions.

Designed for precision resistance calibration, current conversion, and traceability applications, the TH0320 can be paired with precision I/I conversion standards, high-accuracy digital multimeters, and metrology-grade voltmeters. Its extremely low power coefficient minimizes self-heating drift, ensuring accurate resistance values even under high operating currents.

With resistance values ranging from 1 Ω to 10 MΩ and well-defined operating limits, the TH0320 series is suitable for national metrology institutes, calibration laboratories, power test systems, and production-grade high-accuracy verification setups. Its robust mechanical design and 4-wire wiring method further ensure stable, low-EMF performance during long-term operation.

Model	Nominal Resistance @ 23°C	Initial Deviation (ppm)	Measurement Uncertainty (ppm)	Annual Stability (ppm)	Temp. Coefficient (ppm/°C)	Wiring Method	Rated Power (W)	Power Factor (ppm)	Max Current (mA)	Max Voltage (V)
TH0320-1R	1 Ω	5	2.5	3	0.2	4W	0.5	10	707	0.707
TH0320-10R	10 Ω	5	2.5	3	0.2	4W	0.1	10	100	1.00
TH0320-100R	100 Ω	5	2.5	3	0.2	4W	0.1	10	31.6	3.16
TH0320-1kR	1 kΩ	5	2.5	3	0.2	4W	0.1	10	10	10
TH0320-10kR	10 kΩ	5	2.5	3	0.2	4W	0.1	10	3.16	31.6
TH0320-100kR	100 kΩ	5	2.5	3	0.2	2W	0.1	10	1	100
TH0320-1MR	1 MΩ	5	2.5	3	0.2	2W	0.1	10	0.316	316
TH0320-10MR	10 MΩ	10	5	6	0.2	2W	0.1	10	0.1	1000

Ultra-Stable Reference Design: Ensures minimal drift with excellent annual stability as low as ±3 ppm.
Low Temperature Coefficient: Maintains precision in varying environmental conditions with ≤0.2 ppm/°C.
Wide Operating Range: Available from 1 Ω to 10 MΩ for diverse laboratory and calibration applications.
Precision 4-Wire Wiring Method: Provides accurate low-resistance measurements with reduced lead effects.
High Power Handling: Rated for 2 W–4 W operation with minimal power coefficient impact.
Suitable for AC & DC Systems: Ideal for resistance calibration, current conversion, and reference standard systems.
Low Power Factor: Ensures reduced self-heating and measurement noise for metrology-grade stability.
Long-Term Reliability: Engineered for calibration laboratories, national standards centers, and precision manufacturing lines.

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ONsys Technologies OPC Pvt Ltd was established in 2019 and has emerged as Indias preferred and leading supplier of precision test and measurement instrumentation, automated test systems, intelligent manufacturing systems, and test and automation turnkey solutions.Serve the increasing demand of Electronics and Electrical Test & Measurement equipment and customers application-based customized solutions of Indias rapidly growing Electronics Manufacturing industries. We supply, design, assemble, develop, and manufacture testing equipment, Automated Test Equipment (ATEs), Test Zig, and Test Benches as per requirement with highest global standards. To do this, ONsys invests heavily in sourcing, research, and development in order to offer great products with precision, reliability, and useful innovative test and measurement solutions for the technology industry.

TH0320 Reference Resistance Standard

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