Services

Services

Standard Resistors

Alpha USR-SF Series

Ultra-stable primary standard resistor
Resistance range from 1Ω to 10KΩ
Accuracy of ±2 ppm
TCR of ±0.05 ppm/°C
Power rating of 1W
long-term stability of resistance 0.5 ppm/year

Ultra-stable primary standard resistor
Resistance range from 1Ω to 10KΩ
Accuracy of ±2 ppm
TCR of ±0.05 ppm/°C
Power rating of 1W
long-term stability of resistance 0.5 ppm/year

Alpha ADR 1-Dial Series

Fully customisable 1-dial resistance box
Up to 24 unique 5-digit resistance values
Resistance range from 1Ω up to 1MΩ
Tolerance of ±0.02%, ±0.05% or ±0.1%
TCR of ±2.5 ppm/°C or ±5 ppm/°C
Lightweight, compact size

Fully customisable 1-dial resistance box
Up to 24 unique 5-digit resistance values
Resistance range from 1Ω up to 1MΩ
Tolerance of ±0.02%, ±0.05% or ±0.1%
TCR of ±2.5 ppm/°C or ±5 ppm/°C
Lightweight, compact size

Alpha ADR 6-Dial Series

6-Dial decade resistance box
Resistance range from 0.1Ω up to 11.1111MΩ
Accuracy down to ≤0.005%
TCR of ≤5 ppm/°C
Power rating of 0.5W
Long-term stability in resistance ≤50ppm/year

6-Dial decade resistance box
Resistance range from 0.1Ω up to 11.1111MΩ
Accuracy down to ≤0.005%
TCR of ≤5 ppm/°C
Power rating of 0.5W
Long-term stability in resistance ≤50ppm/year

Alpha ASR Series

Extremely stable primary standard resistor
Resistance range from 1Ω to 10MΩ
Accuracy of ±5 ppm or ±10 ppm
TCR of ±0.2 ppm/°C
Power rating of 0.5W or 0.1W
long-term stability of resistance <3 ppm/year

Extremely stable primary standard resistor
Resistance range from 1Ω to 10MΩ
Accuracy of ±5 ppm or ±10 ppm
TCR of ±0.2 ppm/°C
Power rating of 0.5W or 0.1W
long-term stability of resistance <3 ppm/year

Alpha ATS Series

Resistance transfer standard for calibrating standard resistors
Resistance range from 1Ω up to 100MΩ
Accuracy of ±10ppm, ±20ppm or ±50ppm
TCR of ±1 ppm/°C, ±5 ppm/°C or ±10 ppm/°C
Power rating of 0.01W (per element)
Consists of 10 nominal value resistors

Resistance transfer standard for calibrating standard resistors
Resistance range from 1Ω up to 100MΩ
Accuracy of ±10ppm, ±20ppm or ±50ppm
TCR of ±1 ppm/°C, ±5 ppm/°C or ±10 ppm/°C
Power rating of 0.01W (per element)
Consists of 10 nominal value resistors

Alpha ATV Series

Current / voltage conversion adaptor
Resistance range from 1Ω to 100 kΩ
Accuracy of ±0.1%
TCR of ±2.5 ppm/°C
Power rating of 0.1W or n0.25W (at +70°C)
Maximum working current of 0.001A to 0.5A

Current / voltage conversion adaptor
Resistance range from 1Ω to 100 kΩ
Accuracy of ±0.1%
TCR of ±2.5 ppm/°C
Power rating of 0.1W or n0.25W (at +70°C)
Maximum working current of 0.001A to 0.5A

Alpha CSR Series

Extremely stable primary standard resistor
Resistance range from 0.001Ω to 100MΩ
Accuracy from ±5 ppm to ±100 ppm
TCR from ±1 ppm/°C to ±10 ppm/°C
Power rating of 0.01W, 0.1W or 0.5W
Long-term stability of resistance from ±5 ppm/year

Extremely stable primary standard resistor
Resistance range from 0.001Ω to 100MΩ
Accuracy from ±5 ppm to ±100 ppm
TCR from ±1 ppm/°C to ±10 ppm/°C
Power rating of 0.01W, 0.1W or 0.5W
Long-term stability of resistance from ±5 ppm/year

Alpha LSR Series

High power standard resistor
Nominal resistance values of 0.001Ω, 0.01Ω or 0.1Ω
Accuracy of ±25 ppm, ±50 ppm or ±100 ppm
TCR of ±2.5 ppm/°C
Power rating of 1W or 4W
Long-term stability better than 20 ppm/year

High power standard resistor
Nominal resistance values of 0.001Ω, 0.01Ω or 0.1Ω
Accuracy of ±25 ppm, ±50 ppm or ±100 ppm
TCR of ±2.5 ppm/°C
Power rating of 1W or 4W
Long-term stability better than 20 ppm/year

Alpha MSR Series

Compact standard resistor for low resistance calibration
Lightweight, portable and easy to operate
Excellent performance versus cost
The resistive pattern is designed to minimize difference performance between AC and DC
Certificate of Calibration and Inspection sheets traceable to NMIJ (National Metrology Institute of Japan) are provided only for DC operation at shipment

Compact standard resistor for low resistance calibration
Lightweight, portable and easy to operate
Excellent performance versus cost
The resistive pattern is designed to minimize difference performance between AC and DC
Certificate of Calibration and Inspection sheets traceable to NMIJ (National Metrology Institute of Japan) are provided only for DC operation at shipment

Manufacturers

Looking for Standard Resistors?

Looking for Standard Resistors?

The below manufacturers are all of our authorised partners that produce Standard Resistors or related products.

Standard Resistors

Here at Rhopoint Components, we offer a range of high-quality standard resistors for calibration and measurement use. Manufactured by two of the industry leaders on the precision resistor market – Alpha Electronics and Isabellenhuette, our standard resistors are available in several configurations and second-to-none stability and reliability.