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TH0300 High Power Resistor Standard

TH0300 is a series of reference high power resistance standards, it’s applied for precise AC and DC current measurement at high power conditions.

1. Summary

TH0300 is a series of reference high power resistance standards, it’s applied for precise AC and DC current measurement at high power conditions.

2. Features

• Nominal resistance: 0.1 Ω ~ 10 Ω

• Maximum operating current: 11 A

• Long-term stability: 5 ppm/year (typical)

• Temperature coefficient: 1 ppm /°C

• Low thermal potential

• On-site test

3. Applications

• Establish high precision current measurement system

• Calibrate the DC current standard source

• Calibrate high precision resistance meter

☆ DC High Current Precision Measurement

TH0300 High Power Resistor Standard DC High Current Precision Measurement

• When I ≥ 11 A, establish the current measurement system with I/I transfer standard and precision voltmeter.

☆ DC Small Current Precision Measurement

TH0300 High Power Resistor Standard DC Small Current Precision Measurement

• when ≤ 11 A, TH0300 can be directly used as I/V transfer standard.

Model	Nominal Resistance @ 23°C	Initial Deviation ±ppm)	Accuracy (±ppm)	Annual Stability (±ppm)	Maximum Current (A)	Temperature Coefficient (±ppm/°C)
TH0300-0.1R	0.1 Ω	5	2.5	15	11.0	1
TH0300-0.2R	0.2 Ω	5	2.5	15	5.5	1
TH0300-0.5R	0.5 Ω	5	2.5	15	2.2	1
TH0300-1R	1 Ω	5	2.5	5	1.1	1
TH0300-2R	2 Ω	5	2.5	5	0.55	1
TH0300-5R	5 Ω	5	2.5	5	0.22	1
TH0300-10R	10 Ω	5	2.5	5	0.11	1

Model	Nominal Resistance @ 23°C	Initial Deviation ±ppm)	Accuracy (±ppm)	Annual Stability (±ppm)	Maximum Current (A)	Temperature Coefficient (±ppm/°C)
TH0300-0.1R	0.1 Ω	5	2.5	15	11.0	1
TH0300-0.2R	0.2 Ω	5	2.5	15	5.5	1
TH0300-0.5R	0.5 Ω	5	2.5	15	2.2	1
TH0300-1R	1 Ω	5	2.5	5	1.1	1
TH0300-2R	2 Ω	5	2.5	5	0.55	1
TH0300-5R	5 Ω	5	2.5	5	0.22	1
TH0300-10R	10 Ω	5	2.5	5	0.11	1

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