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Alpha Electronics

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

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

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

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

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

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

Alpha CLA Series

Thermosensitive through-hole resistor
Resistance range from 5Ω to 100Ω
Tolerance from ±0.5% available
TCR of linear +4250 ±1% ppm/°C
Power rating of 0.125W (at +70°C)
Temperature range from -65°C to +125°C

Alpha CLB Series

Thermosensitive through-hole resistor
Resistance range from 5Ω to 200Ω
Tolerance from ±0.5%
TCR linear +4250 ±1% ppm/°C
Power rating of 0.25W (at +70°C)
Temperature range from -65°C to +125°C

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

Alpha FLA Series

High precision resistor
Conformally coated through-hole design
Resistance range from 5Ω to 100kΩ
Tolerance from ±0.05% to ±1%
TCR of ±2.5 ppm/°C or ±5 ppm/°C
Temperature Range from -25°C up to +155°C
Power rating of 0.125W (at +70°C)

Alpha FLB Series

High precision resistor
Conformally coated through-hole design
Resistance range from 1Ω to 150kΩ
Tolerance from ±0.02% to ±1%
TCR of ±2.5 ppm/°C or ±5 ppm/°C
Power rating of 0.25W (at +70°C)
Temperature Range from -25°C up to +155°C

Alpha FLC Series

High precision resistor
Conformally coated through-hole design
Resistance range from 1Ω to 200kΩ
Tolerance from ±0.01% to ±1%
TCR of ±2.5 ppm/°C or ±5 ppm/°C
Power rating of 0.25W (at +70°C)
Temperature Range from -25°C up to +155°C

Alpha FNP Series

High power precision shunt resistor
Resistance range form 0.001Ω to 1Ω
Tolerance from ±0.05% to ±1%
TCR from ±1 ppm/°C to ±5 ppm/°C
Power rating of 500W (on a heat sink)
Temperature range from -55°C up to +125°C

Alpha HC Series

Ultra-precision hermetically sealed resistor
Resistance range form 1Ω to 120kΩ
Tolerance from ±0.005% to ±1%
TCR from ±1 ppm/°C to ±15 ppm/°C
Power rating of 0.3W (at 125°C)
Temperature range from -65°C up to +150°C

Alpha HD Series

Ultra-precision hermetically sealed resistor
Resistance range form 1Ω to 120kΩ
Tolerance from ±0.005% to ±1%
TCR from ±1 ppm/°C to ±15 ppm/°C
Power rating of 0.3W (at 125°C)
Temperature range from -65°C up to +150°C

Alpha HG Series

Ultra-precision hermetically sealed resistor
Resistance range form 1Ω to 10kΩ
Tolerance from ±0.005% to ±1%
TCR of ±1 ppm/°C or ±2.5 ppm/°C
Power rating of 0.3W (at 125°C)
Temperature range from -65°C up to +150°C

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

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

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

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

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

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

Alpha CLA Series

Thermosensitive through-hole resistor
Resistance range from 5Ω to 100Ω
Tolerance from ±0.5% available
TCR of linear +4250 ±1% ppm/°C
Power rating of 0.125W (at +70°C)
Temperature range from -65°C to +125°C

Alpha CLB Series

Thermosensitive through-hole resistor
Resistance range from 5Ω to 200Ω
Tolerance from ±0.5%
TCR linear +4250 ±1% ppm/°C
Power rating of 0.25W (at +70°C)
Temperature range from -65°C to +125°C

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

Alpha FLA Series

High precision resistor
Conformally coated through-hole design
Resistance range from 5Ω to 100kΩ
Tolerance from ±0.05% to ±1%
TCR of ±2.5 ppm/°C or ±5 ppm/°C
Temperature Range from -25°C up to +155°C
Power rating of 0.125W (at +70°C)

Alpha FLB Series

High precision resistor
Conformally coated through-hole design
Resistance range from 1Ω to 150kΩ
Tolerance from ±0.02% to ±1%
TCR of ±2.5 ppm/°C or ±5 ppm/°C
Power rating of 0.25W (at +70°C)
Temperature Range from -25°C up to +155°C

Alpha FLC Series

High precision resistor
Conformally coated through-hole design
Resistance range from 1Ω to 200kΩ
Tolerance from ±0.01% to ±1%
TCR of ±2.5 ppm/°C or ±5 ppm/°C
Power rating of 0.25W (at +70°C)
Temperature Range from -25°C up to +155°C

Alpha FNP Series

High power precision shunt resistor
Resistance range form 0.001Ω to 1Ω
Tolerance from ±0.05% to ±1%
TCR from ±1 ppm/°C to ±5 ppm/°C
Power rating of 500W (on a heat sink)
Temperature range from -55°C up to +125°C

Alpha HC Series

Ultra-precision hermetically sealed resistor
Resistance range form 1Ω to 120kΩ
Tolerance from ±0.005% to ±1%
TCR from ±1 ppm/°C to ±15 ppm/°C
Power rating of 0.3W (at 125°C)
Temperature range from -65°C up to +150°C

Alpha HD Series

Ultra-precision hermetically sealed resistor
Resistance range form 1Ω to 120kΩ
Tolerance from ±0.005% to ±1%
TCR from ±1 ppm/°C to ±15 ppm/°C
Power rating of 0.3W (at 125°C)
Temperature range from -65°C up to +150°C

Alpha HG Series

Ultra-precision hermetically sealed resistor
Resistance range form 1Ω to 10kΩ
Tolerance from ±0.005% to ±1%
TCR of ±1 ppm/°C or ±2.5 ppm/°C
Power rating of 0.3W (at 125°C)
Temperature range from -65°C up to +150°C

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About Alpha Electronics

Ultra Precision Bulk Metal® Foil Resistors

Wide range of SMD and through-hole resistors and resistor networks
Z-foil technology ultra-high precision SMD resistors (MPP & MQP series)
Tightest tolerance of ±0.005%, typical TCR of 0.14ppm/°C
Excellent long term stability of 5ppm/year
Standard resistors and resistance boxes