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Supporting Manufacturer Information

±0.05% series

Alpha PE Series

Ultra-precision 4 terminal shunt resistor
Resistance range form 0.5Ω to 500Ω
Tolerance from ±0.01% to ±5%
TCR of ±2.5 ppm/°C, ±5 ppm/°C or ±15 ppm/°C
Power rating of upto 10W (on a heat sink at 70°C)
Temperature range from -55°C up to +155°C

Alpha RWA Series

High precision wraparound resistor
Resistance range form 100Ω to 5kΩ
Tolerance of ±005% or ±0.1%
TCR of ±5 ppm/°C
Power rating of 0.1W (at 70°C)
Temperature range from -65°C to +155°C

Alpha RWB Series

High precision wraparound resistor
Resistance range form 10Ω to 10kΩ
Tolerance from ±0.02% to ±0.5%
TCR of ±2 ppm/°C, ±5 ppm/°C or ±10 ppm/°C
Power rating of 0.2W (at 70°C)
Temperature range from -65°C to +155°C

Alpha RWC Series

High precision wraparound resistor
Resistance range form 5Ω to 130kΩ
Tolerance from ±0.01% to ±0.5%
TCR of ±2 ppm/°C, ±5 ppm/°C or ±10 ppm/°C
Power rating of 0.3W (at 70°C)
Temperature range from -65°C to +155°C

Alpha SC Series

Ultra precision resistor network
Resistance range form 30Ω to 120kΩ
Tolerance from ±0.01% to ±0.5%
TCR of ±5 ppm/°C
Power rating of 1.5W (at 70°C)
Temperature range from -65°C to +155°C

Alpha SE Series

Conformally coated precision resistor network
Resistance range 30Ω and 120kΩ
Tolerance from ±0.05% to ±0.1% available
TCR of ±5 ppm/°C
Power rating of 1W (at +70°C)
Temperature range from -25°C to +125°C

Alpha SF Series

Conformally coated precision resistor network
Resistance range 30Ω and 120kΩ
Tolerance from ±0.05% to ±0.1% available
TCR of ±5 ppm/°C
Power rating of 0.5W (at +70°C)
Temperature range from -25°C to +125°C

Alpha SLD Series

Ultra precision, 2 element resistor network
Resistance range 50Ω and 30kΩ
Tolerance from ±0.05% to ±0.1% available
TCR of ±2.5 ppm/°C or ±5 ppm/°C
Power rating of 0.25W (at +70°C)
Temperature range from -25°C to +125°C

Alpha SM Series

Ultra precision, 2 element resistor network
Resistance range 50Ω and 30kΩ
Tolerance from ±0.05% to ±0.1% available
TCR of ±2.5 ppm/°C or ±5 ppm/°C
Power rating of 0.3W (at +125°C)
Temperature range from -65°C to +150°C

Alpha SS Series

Conformally coated precision resistor network
Resistance range 30Ω and 120kΩ
Tolerance from ±0.05% to ±0.1% available
TCR of ±5 ppm/°C
Power rating of 0.5W (at +70°C)
Temperature range from -25°C to +125°C

Alpha TLA Series

Conformally coated thin film precision resistor
Resistance range from 100kΩ to 5MΩ
Tolerance from ±0.05% to ±1%
TCR of ±5 ppm/°C or ±10 ppm/°C
Power rating of 0.125W (at +70°C)
Temperature Range from -25°C up to +155°C

Alpha TLC Series

Conformally coated thin film precision resistor
Resistance range from 200kΩ to 10MΩ
Tolerance from ±0.02% to ±1%
TCR of ±5 ppm/°C or ±10 ppm/°C
Power rating of 0.25W (at +70°C)
Temperature Range from -25°C up to +155°C

Caddock 1787 Series

Current sensing resistor network
Resistance ranges from 0.9Ω to 1kΩ
Absolute Tolerance of ±0.05%, ±0.1% or ±0.25%
TCR from ±50 ppm/°C to ±100 ppm/°C
Power rating of 1W depending on the model
Temperature range from -55°C to +85°C

Caddock 1789 Series

Precision resistor network
Resistance range from 0.5Ω to 10kΩ
Tolerance of ±0.05% to ±1.0%
TCR of ±50, ±80 or ±100 ppm/°C
Power rating of 100mW up to 2W per resistor
Temperature range from 0°C to +70°C

Caddock T1794 Series

Custom through-hole low TCR precision SIP resistor networks
Ratio-of-ratios as required down to as close to 0.025%
Unique thin-profile, single-in-line edge-mounted package
Utilises Caddock’s Tetrinox® resistance technology

Caddock TF020 Series

Ultra-precision film through-hole resistor
Radial or axial leaded variants available
Maximum working voltage of 300V
Constructed with Caddock’s Tetrinox® resistance films
Long term stability to 0.01% per 1,000 hours
Storage temperature range from -55°C up to +105°C

Alpha PE Series

Ultra-precision 4 terminal shunt resistor
Resistance range form 0.5Ω to 500Ω
Tolerance from ±0.01% to ±5%
TCR of ±2.5 ppm/°C, ±5 ppm/°C or ±15 ppm/°C
Power rating of upto 10W (on a heat sink at 70°C)
Temperature range from -55°C up to +155°C

Alpha RWA Series

High precision wraparound resistor
Resistance range form 100Ω to 5kΩ
Tolerance of ±005% or ±0.1%
TCR of ±5 ppm/°C
Power rating of 0.1W (at 70°C)
Temperature range from -65°C to +155°C

Alpha RWB Series

High precision wraparound resistor
Resistance range form 10Ω to 10kΩ
Tolerance from ±0.02% to ±0.5%
TCR of ±2 ppm/°C, ±5 ppm/°C or ±10 ppm/°C
Power rating of 0.2W (at 70°C)
Temperature range from -65°C to +155°C

Alpha RWC Series

High precision wraparound resistor
Resistance range form 5Ω to 130kΩ
Tolerance from ±0.01% to ±0.5%
TCR of ±2 ppm/°C, ±5 ppm/°C or ±10 ppm/°C
Power rating of 0.3W (at 70°C)
Temperature range from -65°C to +155°C

Alpha SC Series

Ultra precision resistor network
Resistance range form 30Ω to 120kΩ
Tolerance from ±0.01% to ±0.5%
TCR of ±5 ppm/°C
Power rating of 1.5W (at 70°C)
Temperature range from -65°C to +155°C

Alpha SE Series

Conformally coated precision resistor network
Resistance range 30Ω and 120kΩ
Tolerance from ±0.05% to ±0.1% available
TCR of ±5 ppm/°C
Power rating of 1W (at +70°C)
Temperature range from -25°C to +125°C

Alpha SF Series

Conformally coated precision resistor network
Resistance range 30Ω and 120kΩ
Tolerance from ±0.05% to ±0.1% available
TCR of ±5 ppm/°C
Power rating of 0.5W (at +70°C)
Temperature range from -25°C to +125°C

Alpha SLD Series

Ultra precision, 2 element resistor network
Resistance range 50Ω and 30kΩ
Tolerance from ±0.05% to ±0.1% available
TCR of ±2.5 ppm/°C or ±5 ppm/°C
Power rating of 0.25W (at +70°C)
Temperature range from -25°C to +125°C

Alpha SM Series

Ultra precision, 2 element resistor network
Resistance range 50Ω and 30kΩ
Tolerance from ±0.05% to ±0.1% available
TCR of ±2.5 ppm/°C or ±5 ppm/°C
Power rating of 0.3W (at +125°C)
Temperature range from -65°C to +150°C

Alpha SS Series

Conformally coated precision resistor network
Resistance range 30Ω and 120kΩ
Tolerance from ±0.05% to ±0.1% available
TCR of ±5 ppm/°C
Power rating of 0.5W (at +70°C)
Temperature range from -25°C to +125°C

Alpha TLA Series

Conformally coated thin film precision resistor
Resistance range from 100kΩ to 5MΩ
Tolerance from ±0.05% to ±1%
TCR of ±5 ppm/°C or ±10 ppm/°C
Power rating of 0.125W (at +70°C)
Temperature Range from -25°C up to +155°C

Alpha TLC Series

Conformally coated thin film precision resistor
Resistance range from 200kΩ to 10MΩ
Tolerance from ±0.02% to ±1%
TCR of ±5 ppm/°C or ±10 ppm/°C
Power rating of 0.25W (at +70°C)
Temperature Range from -25°C up to +155°C

Caddock 1787 Series

Current sensing resistor network
Resistance ranges from 0.9Ω to 1kΩ
Absolute Tolerance of ±0.05%, ±0.1% or ±0.25%
TCR from ±50 ppm/°C to ±100 ppm/°C
Power rating of 1W depending on the model
Temperature range from -55°C to +85°C

Caddock 1789 Series

Precision resistor network
Resistance range from 0.5Ω to 10kΩ
Tolerance of ±0.05% to ±1.0%
TCR of ±50, ±80 or ±100 ppm/°C
Power rating of 100mW up to 2W per resistor
Temperature range from 0°C to +70°C

Caddock T1794 Series

Custom through-hole low TCR precision SIP resistor networks
Ratio-of-ratios as required down to as close to 0.025%
Unique thin-profile, single-in-line edge-mounted package
Utilises Caddock’s Tetrinox® resistance technology

Caddock TF020 Series

Ultra-precision film through-hole resistor
Radial or axial leaded variants available
Maximum working voltage of 300V
Constructed with Caddock’s Tetrinox® resistance films
Long term stability to 0.01% per 1,000 hours
Storage temperature range from -55°C up to +105°C