Power

Power

Here at Rhopoint Components we can offer a vast selection of power resistors for various applications by a range of industry leading manufacturers including Alpha Electronics, Caddock, Isabellenhuette, RARA, Riedon and Susumu. Variety of package sizes both surface-mount and through-hole, resistance values, tolerances and other variables, as well as fully customisable options are available, with the most common options held in the UK stock for quick delivery.

Can't find what you're looking for? Contact us, we can often offer customised solution to meet all your needs.

Show:
Sort By:

Alpha FNP Series

The FNP high power precision shunt resistor series from Alpha Electronics offers a range of very high precision current sensing shunts with a maximum power rating of 500W on a suitable heat sink at +25°C. By utilising a Ni-Cr Bulk Metal® foil resistor technology, they are able to produce resistors with low temperature coefficients. The FNP shunt resistor series has a built in Pt100 sensor for monitoring the temperature of the resistive element.

  • High power precision shunt resistor
  • Available in any resistance between 0.001Ω and 1Ω (higher values may be available upon request)
  • Tight tolerance options as low as ±0.05% available
  • Tight TCR options available of ±1 ppm/°C and ±2.5 ppm/°C (+25°C to +60°C) or ±5 ppm/°C (-25°C to +125°C)
  • Maximum rated power of 500W
  • Maximum working current of 320A
  • Maximum rated operating temperature +75°C (resistance values greater than 0.01Ω, +25°C for resistances of 0.01Ω or below)
  • Working temperature from -55°C up to +125°C
  • Single pulse power load of 50J (<10ms)

The Alpha Electronics FNP precision shunt resistor series are constructed out of the following materials:

  • Base plate - Nickel-plated Copper
  • Current terminals - Nickel-plated Copper (T = 1.0mm)
  • Voltage and Pt terminals - Nickel-plated Copper (T = 0.5mm)
  • Package - PPS injection-moulded case

Alpha's Ni-Cr Bulk Metal® foil resistor technology means these high power precision shunt resistors resistors are ideal in applications like:

  • Output reference of precision power supply
  • Reference of charge-discharge test for high capacity batteries

The below table gives a summary of the specifications and options available for the Alpha FNP series:

Alpha FNP Specifications

* Keep temperature of the resistive element surface less than +125°C
** Please contact us for higher resistance values

£0.00 Ex Tax: £0.00

Alpha PSB Series

The PSB ultra-precision power shunt resistor series from Alpha Electronics offers 4-terminal (Kelvin) connections for current sensing and a power rating of up to 40W on a heat sink or 12W in free air (at +25°C) all with a low ohmic resistance range from 0.001Ω to 1Ω. By utilising Alpha's Bulk Metal® foil resistor technology, they are able to offer excellent temperature characteristics with low temperature coefficients down to ±5 ppm/°C between the resistance range 0.005Ω and 1Ω.

  • Ultra-precision power shunt resistor
  • Available in any resistance between 0.001Ω and 1Ω
  • 4-terminal (Kelvin) connection high power shunt
  • High heat dissipation due to aluminium-clad construction with fins
  • Power rating of 40W on a heat sink or 12W in free air at +25°C
  • Tolerances as low as ±0.1% over the whole resistance range
  • Tight TCR available of ±5 ppm/°C between 0.005Ω and 1Ω
  • Maximum working current of 100A
  • Maximum rated operating temperature +25°C
  • Working temperature from -55°C up to +85°C

The PSB ultra-precision shunt resistor series exhibits excellent temperature characteristics thanks to Alpha's Bulk Metal® foil resistor technology, making them suitable for the most demanding precision and high power applications.

The 4-terminal connections of this high power shunt series offers accurate current sensing capabilities even in low extremity of resistance.

The PSB series has been designed for easy mounting to heat sink or water-cooled radiator as well as with threaded holes to fix cables with screws (Caution: please screw current terminals >5N·m and voltage terminals >1N·m)

Their 4-terminal design and high precision make them ideal for current sensing in precise power supply or motor driver applications.

The below table gives a summary of the specifications and options available for the Alpha PSB series:

Alpha PSB Specifications

* Thermal resistance of the heat sink 1°C/W
Available to use higher rated power with elevation of cooling effect
Please keep temperature of element surface less than +60°C

£0.00 Ex Tax: £0.00

Caddock MP2060 Series

The MP2060 Kool-Pak® clip mount power film resistors from Caddock offer a resistance range from 0.005Ω up to 1KΩ and a power range of up to 60W continuous power at +25°C case temperature for 0.02Ω and above. The MMP2060 series tolerance values available are ±1.0% (as standard) ±2.0% and ±5.0% (depending on the resistance value required). These power resistors are in a TO-220 style package designed for clip mounting and offer non-inductive design for high speed switching, snubbers and RF applications.

  • Kool-Pak® clip mount power film through hole resistor in a TO-220 style package
  • Resistance values available between 0.005Ω and 1KΩ
  • Excellent pulse / surge performance
  • Non-inductive design
  • TCR of 0 to +300 ppm/°C (between 0.005Ω and 0.014Ω), 0 to +200 ppm/°C (between 0.015Ω and 0.049Ω), 0 to +100 ppm/°C (between 0.05Ω and 0.49Ω) and -20 to +80 ppm/°C (from 0.5Ω and above)
  • Tolerance of ±5.0% at 0.005Ω and ±2.0% at 0.01Ω and 0.015Ω, ±1.0% from 0.02Ω and greater
  • Power range of up to 60W at +25°C case temperature for 0.02Ω and above
  • Continuous current of up to 60A at +25°C case temperature for 0.015Ω and below
  • Operation up to +150°C case temperature
  • Electrically isolated case

Custom resistance values and tolerances are also available on request

The below table gives the specifications available for the complete MP2060 resistor series:

Caddock MP2060 Specifications

* Please see the datasheet for the derating curve.

£0.00 Ex Tax: £0.00

Caddock MP725 Series

The MP725 D-Pak style surface-mount power film resistors from Caddock offer a resistance range from 0.02Ω up to 1KΩ and a power rating of up to 25W at +25°C case temperature. The MP725 series tolerance values available are ±1.0%, ±5.0% and ±20.0% (depending on the resistance value required). These resistors introduce Caddock's proven Micronox® resistance film system in the widely accepted D-Pak style surface-mount power package. The non-inductive design makes this resistor ideal in high frequency communications, power switching circuits, and snubbers.

  • D-Pak style surface-mount power film resistor
  • Resistance values available between 0.02Ω and 1KΩ
  • Metal tab assists in post surface-mount soldering inspection
  • Non-inductive design
  • TCR of 0 to +300 ppm/°C (between 0.02Ω and 0.049Ω), 0 to +200 ppm/°C (between 0.05Ω and 0.49Ω) and -20 to +80 ppm/°C (from 0.5Ω and above)
  • Tolerance of ±5.0% from 0.02Ω to 0.049Ω and ±1.0% from 0.05Ω and 1kΩ (±5.0% and ±20.0% are available for most resistance values)
  • Power rating of up to 25W at +25°C case temperature
  • Maximum voltage rating of 200V
  • Resisor element is electrically isolated from the metal heat sink tab

Use your thermal design experience with power semiconductors in D-Pak style power packages. This experience will help you get the most out of this unique family of surface-mount power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design.

The below table gives the specifications available for the complete MP725 resistor series:

Caddock MP725 Specifications

* Please see the datasheet for the derating curve.

£0.00 Ex Tax: £0.00

Caddock MP820 Series

The MP820 Kool-Pak® power film resistors from Caddock offers a resistance range from 10Ω up to 10KΩ and a power rating of up to 20W at +25°C case temperature derated to zero at +175°C. The MP820 series tolerance is ±1.0% as standard (±0.5%, ±2.0%, ±5.0%, ±10.0% and ±20.0% are available for most resistance values). The MP820 Kool-Tab® power film resistors are constructed with Caddock's Micronox® resistance film fired onto a flat ceramic substrate which is thermally bonded to the copper heat sink tab. The resistor body is then moulded with a high temperature moulding compound to finish the metal tab TO-220 package. The lead wire attachment and resistance element geometry are configured to provide outstanding non-inductive performance.

  • Kool-Pak® power film through-hole resistor
  • Resistance values available between 10Ω and 10KΩ
  • Metal heat sink mounting tab
  • Non-inductive design
  • TCR of -20 to +50 ppm/°C
  • Tolerance of ±1.0% as standard (±0.5%, ±2.0%, ±5.0%, ±10.0% and ±20.0% are available for most resistance values)
  • Power rating of up to 20W at +25°C case temperature derated to zero at +175°C
  • Maximum voltage rating of 300V
  • Resistor element is electrically isolated from the mounting surface

Use your thermal design experience with power semiconductors in TO-220 style power packages to help you get the most out of this unique family of power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design.

The below table gives the specifications available for the complete MP820 resistor series:

Caddock MP820 Specifications

* Please see the datasheet for the derating curve.

£0.00 Ex Tax: £0.00

Caddock MP821 Series

The MP821 Kool-Pak® power film resistors from Caddock offers a resistance range from 0.02Ω up to 9.99Ω and a power rating of up to 20W at +25°C case temperature derated to zero at +175°C. The MP821 series tolerance is ±1.0% as standard (±0.5%, ±2.0%, ±5.0%, ±10.0% and ±20.0% are available for most resistance values). The MP821 Kool-Tab® power film resistors are constructed with Caddock's Micronox® resistance film fired onto a flat ceramic substrate which is thermally bonded to the copper heat sink tab. The resistor body is then moulded with a high temperature moulding compound to finish the metal tab TO-220 package. The lead wire attachment and resistance element geometry are configured to provide outstanding non-inductive performance.

  • Kool-Pak® power film through-hole resistor
  • Resistance values available between 0.02Ω and 9.99Ω
  • Metal heat sink mounting tab
  • Non-inductive design for high speed switching, snubbers and RF applications
  • TCR of 0 to +300 ppm/°C (between 0.02Ω and 0.049Ω), 0 to +200 ppm/°C (between 0.05Ω and 0.49Ω), -20 to +80 ppm/°C (from 0.5Ω up to 4.99Ω) and-20 to +50 ppm/°C (from 5Ω and above)
  • Tolerance of ±1.0% as standard (±0.5%, ±2.0%, ±5.0%, ±10.0% and ±20.0% are available for most resistance values)
  • Power rating of up to 20W at +25°C case temperature derated to zero at +175°C
  • Resistor element is electrically isolated from the mounting surface

Use your thermal design experience with power semiconductors in TO-220 style power packages to help you get the most out of this unique family of power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design.

The below table gives the specifications available for the complete MP800 resistor series including the MP821:

Caddock MP821 Specifications

* Please see the datasheet for the derating curve.

£0.00 Ex Tax: £0.00

Caddock MP825 Series

The MP825 Kool-Pak® power film resistors from Caddock include an integral metal mounting surface for highly efficient thermal transfer. The resistance range is from 0.02Ω up to 10KΩ with a power rating of up to 25W at +25°C case temperature derated to zero at +150°C. The MP825 series tolerance is ±1.0% as standard (±0.5%, ±2.0%, ±5.0%, ±10.0% and ±20.0% are available for most resistance values). Caddock MP825 Kool-Pak® Power Film Resistors are constructed with Caddock's Micronox® resistance film fired onto a flat ceramic substrate. The ceramic substrate is bonded to a copper heat sink which becomes the metal mounting surface. This assembly is moulded with the copper heat sink flush with the back surface of the part. The terminal attachment and resistance element geometry are configured to provide outstanding non-inductive performance.

  • Kool-Pak® power film through-hole resistor
  • Resistance values available between 0.02Ω and 10KΩ
  • Copper heat sink integral in the moulded package
  • Non-inductive design
  • TCR of 0 to +300 ppm/°C (between 0.02Ω and 0.049Ω), 0 to +200 ppm/°C (between 0.05Ω and 0.49Ω), -20 to +80 ppm/°C (from 0.5Ω up to 4.99Ω) and -20 to +50 ppm/°C (from 5Ω and above)
  • Tolerance of ±1.0% as standard from 0.05Ω and above and ±5.0% from 0.02Ω up to 0.04Ω (±0.5%, ±2.0%, ±5.0%, ±10.0% and ±20.0% are available for most resistance values)
  • Power rating of up to 25W at +25°C case temperature derated to zero at +150°C
  • Resistor element is electrically isolated from the mounting surface

Use your thermal design experience with power semiconductors in TO-126 style power packages to help you get the most out of this unique family of power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design.

The below table gives the specifications available for the complete MP800 resistor series including the MP825:

Caddock MP825 Specifications

* Please see the datasheet for the derating curve.

£0.00 Ex Tax: £0.00

Caddock MP850 Series

The MP850 Kool-Pak® power film resistors from Caddock include an integral metal mounting surface for highly efficient thermal transfer. The resistance range is from 0.2Ω up to 10KΩ with a power rating of up to 50W at +25°C case temperature derated to zero at +150°C. The MP850 series tolerance is ±1.0% as standard (±0.5%, ±2.0%, ±5.0%, ±10.0% and ±20.0% are available for most resistance values). Caddock MP850 Kool-Pak® power film resistors are constructed with Caddock's Micronox® resistance film fired onto a flat ceramic substrate. The ceramic substrate is bonded to a copper heat sink which becomes the metal mounting surface. This assembly is moulded with the copper heat sink flush with the back surface of the part. The terminal attachment and resistance element geometry are configured to provide outstanding non-inductive performance.

  • Kool-Pak® power film through-hole resistor
  • Resistance values available between 0.2Ω and 10KΩ
  • Copper heat sink integral in the moulded package
  • Non-inductive design
  • TCR of 0 to +200 ppm/°C (between 0.05Ω and 0.49Ω), -20 to +80 ppm/°C (from 0.5Ω up to 4.99Ω) and -20 to +50 ppm/°C (from 5Ω and above)
  • Tolerance of ±1.0% as standard (±0.5%, ±2.0%, ±5.0%, ±10.0% and ±20.0% are available for most resistance values)
  • Power rating of up to 50W at +25°C case temperature derated to zero at +150°C
  • Resistor element is electrically isolated from the mounting surface

Use your thermal design experience with power semiconductors in TO-126 style power packages to help you get the most out of this unique family of power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design.

The below table gives the specifications available for the complete MP800 resistor series including the MP850:

Caddock MP850 Specifications

* Please see the datasheet for the derating curve.

£0.00 Ex Tax: £0.00

Caddock MP9100 Series

The MP9100 Kool-Pak® power film resistors from Caddock are a low cost, heat sink mountable design featuring an exposed ceramic heat dissipating mounting surface. The resistance range is from 0.05Ω up to 100Ω with a power rating of up to 100W at +25°C case temperature derated to zero at +175°C. The MP9100 series tolerance is ±1.0% as standard (±5.0% and ±20.0% are available for most resistance values). The MP9100 series Kool-Pak® power film resistors are constructed with Caddock's Micronox® resistance film fired onto a flat ceramic substrate. The terminal attachment and resistance element geometry are configured to provide outstanding non-inductive performance.

  • Kool-Pak® power film through-hole resistor
  • Low-cost heat sink mountable design featuring an exposed ceramic heat dissipating mounting surface.
  • Resistance values available between 0.05Ω and 100Ω
  • Non-inductive design
  • TCR of 0 to +200 ppm/°C (between 0.05Ω and 0.49Ω) and -20 to +80 ppm/°C (from 0.5Ω and above)
  • Tolerance of ±1.0% as standard (±5.0% and ±20.0% are also available for most resistance values)
  • Power rating of up to 100W at +25°C case temperature derated to zero at +175°C
  • Maximum temperature 175°C

Use your thermal design experience with power semiconductors in TO-247 style power packages to help you get the most out of this unique family of power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design.

The below table gives the specifications available for the complete MP9000 resistor series including the MP9100:

Caddock MP9100 Specifications

* Please see the datasheet for the derating curve.

£0.00 Ex Tax: £0.00

Caddock MP915 Series

The MP915 Kool-Pak® power film resistors from Caddock are a low cost, heat sink mountable design featuring an exposed ceramic heat dissipating mounting surface. The resistance range is from 0.02Ω up to 1KΩ with a power rating of up to 15W at +25°C case temperature derated to zero at +150°C. The MP915 series tolerance options available are ±1.0% ( standard), ±5.0% and ±20.0% depending on the resistance values required. The MP915 series Kool-Pak® power film resistors are constructed with Caddock's Micronox® resistance film fired onto a flat ceramic substrate. The terminal attachment and resistance element geometry are configured to provide outstanding non-inductive performance.

  • Kool-Pak® power film through-hole resistor
  • Low-cost heat sink mountable design featuring an exposed ceramic heat dissipating mounting surface.
  • Resistance values available between 0.02Ω and 1KΩ
  • Non-inductive design
  • TCR of 0 to +300 ppm/°C (between 0.02Ω and 0.049Ω), 0 to +200 ppm/°C (between 0.05Ω and 0.49Ω) and -20 to +80 ppm/°C (from 0.5Ω and above)
  • Tolerance of ±5.0% from 0.02Ω up to 0.04Ω and ±1.0% from 0.05Ω and above (±5.0% and ±20.0% are available for most resistance values)
  • Power rating of up to 15W at +25°C case temperature derated to zero at +150°C
  • Maximum voltage 200V
  • Maximum temperature 150°C

Use your thermal design experience with power semiconductors in TO-126 style power packages to help you get the most out of this unique family of power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design.

The below table gives the specifications available for the complete MP900 resistor series including the MP915:

Caddock MP915 Specifications

* Please see the datasheet for the derating curve.

£0.00 Ex Tax: £0.00

Caddock MP916 Series

The MP916 Kool-Pak® power film resistors from Caddock are a low cost, heat sink mountable design featuring an exposed ceramic heat dissipating mounting surface. The standard resistance values available are 0.01Ω and 0.015Ω with a power rating of up to 16W at +25°C case temperature derated to zero at +150°C. The MP916 series tolerance options available are ±5.0% ( standard) and ±20.0%. The MP915 series Kool-Pak® power film resistors are constructed with Caddock's Micronox® resistance film fired onto a flat ceramic substrate. The terminal attachment and resistance element geometry are configured to provide outstanding non-inductive performance.

  • Kool-Pak® power film through-hole resistor
  • Low-cost heat sink mountable design featuring an exposed ceramic heat dissipating mounting surface.
  • Standard resistance values available are 0.01Ω and 0.015Ω
  • Non-inductive design
  • TCR of 0 to +500 ppm/°C
  • Tolerance of ±5.0% (standard), ±20.0% is also available
  • Power rating of up to 16W at +25°C case temperature derated to zero at +150°C
  • Maximum temperature 150°C

Use your thermal design experience with power semiconductors in TO-220 style power packages to help you get the most out of this unique family of power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design.

The below table gives the specifications available for the complete MP900 resistor series including the MP916:

Caddock MP916 Specifications

* Please see the datasheet for the derating curve.

£0.00 Ex Tax: £0.00

Caddock MP925 Series

The MP925 Kool-Pak® power film resistors from Caddock are a low cost, heat sink mountable design featuring an exposed ceramic heat dissipating mounting surface. The resistance range is from 5KΩ up to 100KΩ with a power rating of up to 25W at +25°C case temperature derated to zero at +150°C. The MP915 series tolerance options available are ±1.0% (standard), ±5.0% and ±20.0% are also available depending on the resistance values required. The MP925 series Kool-Pak® power film resistors are constructed with Caddock's Micronox® resistance film fired onto a flat ceramic substrate. The terminal attachment and resistance element geometry are configured to provide outstanding non-inductive performance.

  • Kool-Pak® power film through-hole resistor
  • Low-cost heat sink mountable design featuring an exposed ceramic heat dissipating mounting surface
  • Resistance values available between 5KΩ and 100KΩ
  • Non-inductive design
  • TCR of -20 to +80 ppm/°C (from 0.5Ω and above)
  • Tolerance of ±1.0% as standard (±5.0% and ±20.0% are available for most resistance values)
  • Power rating of up to 25W at +25°C case temperature derated to zero at +150°C
  • Maximum voltage 500V
  • Maximum temperature 150°C

Use your thermal design experience with power semiconductors in TO-220 style power packages to help you get the most out of this unique family of power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design.

The below table gives the specifications available for the complete MP900 resistor series including the MP925:

Caddock MP925 Specifications

* Please see the datasheet for the derating curve.

£0.00 Ex Tax: £0.00

Caddock MP930 Series

The MP930 Kool-Pak® power film resistors from Caddock are a low cost, heat sink mountable design featuring an exposed ceramic heat dissipating mounting surface. The resistance range is from 0.02Ω up to 4.99kΩ with a power rating of up to 30W at +25°C case temperature derated to zero at +150°C. The MP930 series tolerance options available are ±5.0% from 0.02Ω up to 0.04Ω, ±1.0% from 0.05Ω and above, (±5.0% and ±20.0% are available for most resistance values). The MP930 series Kool-Pak® power film resistors are constructed with Caddock's Micronox® resistance film fired onto a flat ceramic substrate. The terminal attachment and resistance element geometry are configured to provide outstanding non-inductive performance.

  • Kool-Pak® power film through-hole resistor
  • Low-cost heat sink mountable design featuring an exposed ceramic heat dissipating mounting surface
  • Resistance values available between 0.02Ω and 4.99kΩ
  • Non-inductive design
  • TCR of 0 to +300 ppm/°C (between 0.02Ω and 0.049Ω), 0 to +200 ppm/°C (between 0.05Ω and 0.49Ω) and -20 to +80 ppm/°C (from 0.5Ω and above)
  • Tolerance of ±5.0% from 0.02Ω up to 0.04Ω and ±1.0% from 0.05Ω and above (±5.0% and ±20.0% are available for most resistance values)
  • Power rating of up to 30W at +25°C case temperature derated to zero at +150°C
  • Maximum voltage 250V
  • Maximum temperature 150°C

Use your thermal design experience with power semiconductors in TO-220 style power packages to help you get the most out of this unique family of power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design.

The below table gives the specifications available for the complete MP900 resistor series including the MP930:

Caddock MP930 Specifications

* Please see the datasheet for the derating curve.

£0.00 Ex Tax: £0.00

Caddock MPM20 Series

The MPM20 Kool-Pak® power film resistors from Caddock are pure tin free design for high performance industrial and military applications in TO-220 style power package with metal mounting tab. The resistance range is from 0.02Ω up to 10kΩ with a power rating of up to 20W at +25°C case temperature. The MPM20 series tolerance is ±1.0% (±0.5% is available for most resistance values). MPM20 series uses Caddock’s proven Micronox® resistance film system to provide a compact heat sink mountable resistor. The non-inductive design makes this resistor ideal in high frequency communications, power switching circuits and snubbers.

  • Kool-Pak® power film through-hole resistor
  • Pure tin free design for high performance industrial and military applications
  • Resistance values available between 0.02Ω and 10kΩ
  • Non-inductive design
  • TCR of 0 to +300 ppm/°C (between 0.02Ω and 0.049Ω), 0 to +200 ppm/°C (between 0.05Ω and 0.99Ω), -20 to +80 ppm/°C (from 1Ω to 4.99Ω) and -20 to +50 ppm/°C (from 5Ω and above)
  • Tolerance of ±1.0% (±0.5% is available for most resistance values)
  • Power rating of up to 20W at +25°C case temperature
  • Maximum voltage 300V
  • Single screw mounting simplifies resistor attachment to the heat sink
  • Low profile provides an easier fit in tight places with a moulded case for environmental protection

Use your thermal design experience with power semiconductors in TO-220 style power packages. This experience will help you get the most out of this unique family of surface-mount power resistors. The thermal design issues are the same where power handling capability is based on the case temperature which is maintained in your design.

The below table gives the specifications available for the complete MPM20 resistor:

Caddock MPM20 Specifications

* Please see the datasheet for the derating curve.

£0.00 Ex Tax: £0.00

Caddock MS Series

The MS power film resistor family from Caddock are axial-lead resistors with a wide resistance range from 20Ω to 30MΩ and a maximum operating temperature of +275°C. These resistors have a power rating of up to 22W at +25°C and maximum voltage of 6000V. Caddock MS power film high voltage resistors are cost effective high voltage resistors. Caddock MS power film high voltage resistors performance begins with Caddock's Micronox® resistance films which are fired directly onto a ceramic core at temperatures above 1400°F (760°C). These resistance films have demonstrated outstanding stability when exposed to a high ambient temperature, thermal shock and high power densities.

  • High voltage power film through-hole resistor
  • Higher voltage ratings without the limitations of minimum wire size and spacing
  • Resistance values available between 20Ω and 30MΩ
  • TCR ±80 ppm/°C (between 0°C and +70°C)
  • Tolerance of ±1.0% (±0.1% are available on special order)
  • Maximum power rating of up to 22W (at +25°C, MS322 model) or up to 13.2W (at +125°C, MS322 model)
  • Maximum voltage 6000V
  • Maximum operating temperature +275°C
  • Excellent long term stability

Most models are manufactured with Caddock's non-inductive serpentine resistive pattern that provides a truly non-inductive resistor that is about as inductive as a straight piece of wire the length of the resistor body. Caddock MS series lead material is nickel clad copper with thin gold plate, solderable. For welding applications, optional pure nickel leads are available on Models MS126, MS150, MS151, MS175, MS176, MS210.

The below table gives the specifications available for the complete MS resistor series:

Caddock MS series Specifications

Caddock MM SpecificationsModels with low inductance construction are in shaded areas

Caddock MM Specifications Models with Caddock's non-inductance resistance pattern are in non-shaded areas

* limited by power rating

£0.00 Ex Tax: £0.00