Scientific Instrumentation

A wide range of precision and ultra-precision resistors from Alpha Electronics, General Resistance and Susumu, power resistors from Caddock and current sensing resistors and shunts from Isabellenhรผtte in a variety surface-mount and through-hole packages and virtually any resistance value.

Variety of NTC and PTC thermistors, thermal probes and inrush current limiters from Ametherm.

A range of digital isolators from NVE Corporation, based on their patented spintronic GMR technology.

Scientific Instrumentation

  • Caddock

Caddock HVD Series

  • Ultra-precision through-hole high voltage divider
  • 6 standard models of the HVD series
  • Monolithic voltage dividers built with ceramic sandwich construction
  • Ratios (RT:R2) of 100:1 or 1,000:1
  • Ideal for high performance voltage division applications in medical equipment, laboratory equipment and analytical instruments
  • Over voltage of 1.5 times rated voltage for 5s
  • Caddock

Caddock MG Standard Range

  • Cylindrical high voltage axial leaded resistor
  • Maximum operating voltage from 600V up to 30kV *
  • Resistance values from 200ฮฉ up to 2Gฮฉ *
  • Tolerances of ยฑ0.1%, ยฑ0.25%, ยฑ0.5% and ยฑ1%
  • TCR as tight as ยฑ80 ppm/ยฐC from -15ยฐC to +105ยฐC
  • Maximum power rating from 0.5W up to 15W *
  • Operating Temperature Range of -55ยฐC to +225ยฐC
* Dependant on selected resistor model
  • Ametherm

Ametherm ACC-001

  • Precision interchangeable NTC thermistor
  • Brown coloured small bead design
  • Resistance of 2.252kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Temperature range from -40ยฐC to +150ยฐC
  • Ametherm

Ametherm ACC-002

  • Precision interchangeable NTC thermistor
  • Red coloured small bead design
  • Resistance of 3kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Temperature range from -40ยฐC to +150ยฐC
  • Ametherm

Ametherm ACC-003

  • Precision interchangeable NTC thermistor
  • Orange coloured small bead design
  • Resistance of 5kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Temperature range from -40ยฐC to +150ยฐC
  • Ametherm

Ametherm ACC-004

  • Precision interchangeable NTC thermistor
  • Yellow coloured small bead design
  • Resistance of 10kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Yellow colour code
  • Temperature range from -40ยฐC to +150ยฐC
  • Ametherm

Ametherm ACW-005

  • Precision interchangeable NTC thermistor
  • Green colour small bead design
  • Resistance of 30kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Temperature range from -40ยฐC to +150ยฐC
  • Ametherm

Ametherm ACW-006

  • Precision interchangeable NTC thermistor
  • Blue coloured small bead design
  • Resistance of 50kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Temperature range from -40ยฐC to +150ยฐC
  • Ametherm

Ametherm ACW-007

  • Precision interchangeable NTC thermistor
  • Violet coloured small bead design
  • Resistance of 100kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Temperature range from -40ยฐC to +150ยฐC
  • Caddock

Caddock CC2015FC Series

  • Current sensing resistor
  • Resistance range from 0.02ฮฉ to 10ฮฉ
  • Tolerance from ยฑ1.0% to ยฑ5.0%
  • TCR of -20 to +80, 0 to +200 or +300 ppm/ยฐC
  • Power rating of 1W at 70ยฐC
  • Temperature range from -55ยฐC to +150ยฐC
  • Caddock

Caddock MG -15 Range

  • Cylindrical high voltage axial leaded resistor
  • Maximum operating voltage from 960V up to 48kV *
  • Resistance values from 6.5Mฮฉ up to 2Gฮฉ *
  • Tolerances of ยฑ1% and ยฑ5%
  • TCR as tight as ยฑ80 ppm/ยฐC from -15ยฐC to +105ยฐC
  • Maximum power rating from 0.5W up to 15W *
  • Operating Temperature Range of -55ยฐC to +225ยฐC
* Dependant on selected resistor model
  • Caddock

Caddock MG Extended Range

  • Cylindrical high voltage axial leaded resistor
  • Maximum operating voltage from 2kV up to 30kV *
  • Resistance values from 600ฮฉ up to 10Gฮฉ *
  • Tolerances of ยฑ1% and ยฑ5%
  • TCR as tight as ยฑ80 ppm/ยฐC from +25ยฐC to +105ยฐC
  • Operating Temperature Range of -55ยฐC to +225ยฐC
  • Maximum power rating from 1.5W up to 15W *
* Dependant on selected resistor model
  • Caddock

Caddock TF020 Series

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

Caddock TF050 Series

  • Ultra-precision film through-hole resistor
  • Radial or axial leaded variants available
  • Maximum working voltage of 1.4kV
  • Constructed with Caddock’s Tetrinoxยฎ resistance films
  • Long term stability to 0.01% per 1,000 hours
  • Storage temperature range from -55ยฐC up to +105ยฐC
  • Caddock

Caddock TF626 Series

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

Caddock TF656 Series

  • Ultra-precision film through-hole resistor
  • Radial or axial leaded variants available
  • Maximum working voltage of 1.4kV
  • Constructed with Caddock’s Tetrinoxยฎ resistance films
  • Long term stability to 0.01% per 1,000 hours
  • Storage temperature range from -55ยฐC up to +105ยฐC

Caddock HVD Series

  • Ultra-precision through-hole high voltage divider
  • 6 standard models of the HVD series
  • Monolithic voltage dividers built with ceramic sandwich construction
  • Ratios (RT:R2) of 100:1 or 1,000:1
  • Ideal for high performance voltage division applications in medical equipment, laboratory equipment and analytical instruments
  • Over voltage of 1.5 times rated voltage for 5s

Caddock MG Standard Range

  • Cylindrical high voltage axial leaded resistor
  • Maximum operating voltage from 600V up to 30kV *
  • Resistance values from 200ฮฉ up to 2Gฮฉ *
  • Tolerances of ยฑ0.1%, ยฑ0.25%, ยฑ0.5% and ยฑ1%
  • TCR as tight as ยฑ80 ppm/ยฐC from -15ยฐC to +105ยฐC
  • Maximum power rating from 0.5W up to 15W *
  • Operating Temperature Range of -55ยฐC to +225ยฐC
* Dependant on selected resistor model

Ametherm ACC-001

  • Precision interchangeable NTC thermistor
  • Brown coloured small bead design
  • Resistance of 2.252kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Temperature range from -40ยฐC to +150ยฐC

Ametherm ACC-002

  • Precision interchangeable NTC thermistor
  • Red coloured small bead design
  • Resistance of 3kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Temperature range from -40ยฐC to +150ยฐC

Ametherm ACC-003

  • Precision interchangeable NTC thermistor
  • Orange coloured small bead design
  • Resistance of 5kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Temperature range from -40ยฐC to +150ยฐC

Ametherm ACC-004

  • Precision interchangeable NTC thermistor
  • Yellow coloured small bead design
  • Resistance of 10kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Yellow colour code
  • Temperature range from -40ยฐC to +150ยฐC

Ametherm ACW-005

  • Precision interchangeable NTC thermistor
  • Green colour small bead design
  • Resistance of 30kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Temperature range from -40ยฐC to +150ยฐC

Ametherm ACW-006

  • Precision interchangeable NTC thermistor
  • Blue coloured small bead design
  • Resistance of 50kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Temperature range from -40ยฐC to +150ยฐC

Ametherm ACW-007

  • Precision interchangeable NTC thermistor
  • Violet coloured small bead design
  • Resistance of 100kฮฉ (at 25ยฐC)
  • Tolerance of ยฑ0.2ยฐC
  • Maximum power rating of 250mW
  • Temperature range from -40ยฐC to +150ยฐC

Caddock CC2015FC Series

  • Current sensing resistor
  • Resistance range from 0.02ฮฉ to 10ฮฉ
  • Tolerance from ยฑ1.0% to ยฑ5.0%
  • TCR of -20 to +80, 0 to +200 or +300 ppm/ยฐC
  • Power rating of 1W at 70ยฐC
  • Temperature range from -55ยฐC to +150ยฐC

Caddock MG -15 Range

  • Cylindrical high voltage axial leaded resistor
  • Maximum operating voltage from 960V up to 48kV *
  • Resistance values from 6.5Mฮฉ up to 2Gฮฉ *
  • Tolerances of ยฑ1% and ยฑ5%
  • TCR as tight as ยฑ80 ppm/ยฐC from -15ยฐC to +105ยฐC
  • Maximum power rating from 0.5W up to 15W *
  • Operating Temperature Range of -55ยฐC to +225ยฐC
* Dependant on selected resistor model

Caddock MG Extended Range

  • Cylindrical high voltage axial leaded resistor
  • Maximum operating voltage from 2kV up to 30kV *
  • Resistance values from 600ฮฉ up to 10Gฮฉ *
  • Tolerances of ยฑ1% and ยฑ5%
  • TCR as tight as ยฑ80 ppm/ยฐC from +25ยฐC to +105ยฐC
  • Operating Temperature Range of -55ยฐC to +225ยฐC
  • Maximum power rating from 1.5W up to 15W *
* Dependant on selected resistor model

Caddock TF020 Series

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

Caddock TF050 Series

  • Ultra-precision film through-hole resistor
  • Radial or axial leaded variants available
  • Maximum working voltage of 1.4kV
  • Constructed with Caddock’s Tetrinoxยฎ resistance films
  • Long term stability to 0.01% per 1,000 hours
  • Storage temperature range from -55ยฐC up to +105ยฐC

Caddock TF626 Series

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

Caddock TF656 Series

  • Ultra-precision film through-hole resistor
  • Radial or axial leaded variants available
  • Maximum working voltage of 1.4kV
  • Constructed with Caddock’s Tetrinoxยฎ resistance films
  • Long term stability to 0.01% per 1,000 hours
  • Storage temperature range from -55ยฐC up to +105ยฐC

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