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Added value distributor and development

Power Resistors

  • High-quality power resistors for demanding applications
  • Broad product range from leading manufacturers
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Customized resistors
Over 60 years of experience
in the electrical engineering and electronics industry
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through optimized warehousing
Germany and Switzerland
Dual location strength and reliability

Power resistors from VPG Foil Resistors

Wirewound
Resistance Range0,1-1-1K Ω, 0,01-3K Ω, 0,1-4K Ω, 0,1-8K Ω, 0,01-0,1-15K Ω, 0,05 to 16K Ω, 0,05 to 22K Ω, 0,05 to 33K Ω, 0,05 to 50K Ω, 0,05 to 70K Ω, 0,01 - 50K Ω, 0,01 - 250K Ω
Tolerances1 %. 5 %. 10 %, 0,5 %.1 %. 5 %, 1 %. 5 %, 0,5 %. 1 %. 5 %, 0,05 % - 5 %, 0,01 % - 10 %
Power (Watts)60-100 - 500 W, 0,5-10 W, 0,5 - 4 W, 7,5 - 50 W, 20 - 100 W
Profile/Package StyleHigh Power Metal Clad Braking Resistor, Slim Profile High Power Metal Clad Braking Resistor, Surface Mount Wirewound, Aluminum Housed Wirewound, High Power Ceramic Wirewound Resistor
Wirewound product range
Power
Min. Resistance (Ω)1-500m, 5-50
Max. Resistance (Ω)1-500, 5-100m, 5M, 1-150K
Tolerance (±%)0,01-10
TCR (±ppm/°C)0,2-100
Rated Power (W)5-2500
Typical Load Life Stability (±%)0,01-1
Power product range
High Power Resistors
Resistance Range0,1-1-1K Ω, 0,01-3K Ω, 0,1-4K Ω, 0,1-8K Ω, 0,01-0,1-15K Ω, 0,05 to 16K Ω, 0,05 to 22K Ω, 0,05 to 33K Ω, 0,05 to 50K Ω, 0,05 to 70K Ω, 0,01 - 50K Ω, 0,01 - 250K Ω
Tolerances1 %. 5 %. 10 %, 0,5 %.1 %. 5 %, 1 %. 5 %, 0,5 %. 1 %. 5 %, 0,05 % - 5 %, 0,01 % - 10 %
Power (Watts)60-100 - 500 W, 0,5-10 W, 0,5 - 4 W, 7,5 - 50 W, 20 - 100 W
Profile/Package StyleHigh Power Metal Clad Braking Resistor, Slim Profile High Power Metal Clad Braking Resistor, Surface Mount Wirewound, Aluminum Housed Wirewound, High Power Ceramic Wirewound Resistor
High Power Resistors product range

Robust power resistors for harsh environments

Power resistors play a central role in modern electronic systems. They are designed to process high electrical power reliably and dissipate heat efficiently at the same time. In contrast to conventional resistors, they have been developed for use with high currents and voltages - wherever stable current limitation and voltage adjustment are required.

Finding power resistors with low inductance

Power resistors for battery management systems

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Our range of power resistors

Wirewound

PhotoSeriesResistance RangeTolerancesTemperature CoefficientPower (Watts)Profile/Package StyleMDSData Sheet
BR/BRT0.1-1K Ω1 %, 5 %, 10 %< 260 PPM/°C60 - 500 WHigh Power Metal Clad Braking ResistorTBD
BRS1-1K Ω1 %, 5 %, 10 %< 260 PPM/°C100 - 500 WSlim Profile High Power Metal Clad Braking ResistorTBD
PWR20100.1-1K Ω0.5 %,1 %, 5 %±20 to ±90 ppm0.5 WSurface Mount WirewoundPWR2010
PWR26150.01-3K Ω1 %, 5 %±20 to ±150 ppm1 WSurface Mount WirewoundPWR2615
PWR30140.1-4K Ω0.5 %,1 %, 5 %±20 to ±90 ppm1 WSurface Mount WirewoundPWR3014W
PWR43180.1-8K Ω0.5 %,1 %, 5 %±20 to ±90 ppm2 WSurface Mount WirewoundPWR4318W
PWR45250.01-15K Ω1 %, 5 %±20 to ±150 ppm2 WSurface Mount WirewoundPWR4525
PWR53220.1-15K Ω0.5 %,1 %, 5 %±20 to ±90 ppm3 WSurface Mount WirewoundPWR5322W
PWR69270.05 to 16K Ω0.5 %, 1 %, 5 %±20 PPM/°C ~ ±300 PPM/°C3 WSurface Mount WirewoundPWR6927
PWR80300.05 to 22K Ω0.5 %, 1 %, 5 %±20 PPM/°C ~ ±300 PPM/°C5 WSurface Mount WirewoundPWR8030
PWR89370.05 to 33K Ω0.5 %, 1 %, 5 %±20 PPM/°C ~ ±300 PPM/°C5 WSurface Mount WirewoundPWR8937
PWRA2470.05 to 50K Ω0.5 %, 1 %, 5 %±20 PPM/°C ~ ±300 PPM/°C7 WSurface Mount WirewoundPWRA247
PWRB0530.05 to 70K Ω0.5 %, 1 %, 5 %±20 PPM/°C ~ ±300 PPM/°C10 WSurface Mount WirewoundPWRB053
S-SL0.005 - 50K Ω0.05 % - 5 %±20 - ±150 ppm0.5 - 4 WSurface Mount WirewoundSSL
UAL0.01 - 250K Ω0.01 % - 10 %±20 - ±150 ppm7.5 - 50 WAluminum Housed WirewoundUAL
UWP1-1K Ω1 %, 5 %< 260 PPM/°C20 - 100 WHigh Power Ceramic Wirewound ResistorTBD

Power

PhotoProduct NameMin. Resistance (Ω)Max. Resistance (Ω)Tolerance (±%)TCR (±ppm/°C)Rated Power (W)Typical Load Life Stability (±%)Data Sheet
FHR 2-8011010m5000.5506000.1
FHR 2-80655m50m0.5503500.1
FHR 2-802162m5000.55012000.1
FHR 2-803202m5000.55020000.1
FHR 2-803705m5000.55025000.1
KHN 2-T22750m5M1502001
KPN 2-T22750m5M1501001
KPR 2-T21850m100K1100501
KHR 2-T21850m100K11001001
KHR 2-T22750m5M1502001
KHR 4-T22750m5M1502001
KPR 4-T22750m5M1501001
KHR 4-T60050300101006001
KHR 4-T900501K101009001
NHR 2-T22020m15K150500.5
NHR 2-T22120m15K150500.5
NPR 2-T22020m100K150300.5
NPR 2-T22120m100K150300.5
NPS 2-T22020m100K150300.5
NPRS 2-T126B25m10K1100250.5
NPRS 2-T22020m100K150300.5
NPS 2-T126B25m10K1100250.5
SHLR 4-23211m5m0.12400.1
SHLR 4-38251m5m0.12500.1
SHLR 4-3825H1m5m0.12500.1
UNS 2-T220500m5K0.013150.01
USS 2-T220500m150K0.013100.01
CSM3637PY2m100m0.11550.2
VFP450m5000.012100.05
VHP3100m80K0.012100.05
VHP450m5000.012100.05
VHP4Z250m5000.010.2100.01
VPR220Z510K0.010.280.05
VPR220SZ510K0.010.280.05
PSB1m10.15400.05
SHR 4-28201m10m0.270100.5

High Power Resistors

PhotoSeriesResistance RangeTolerancesTemperature CoefficientPower (Watts)Profile/Package StyleMDSData Sheet
BR/BRT0.1-1K Ω1 %, 5 %, 10 %< 260 PPM/°C60 - 500 WHigh Power Metal Clad Braking ResistorTBD
BRS1-1K Ω1 %, 5 %, 10 %< 260 PPM/°C100 - 500 WSlim Profile High Power Metal Clad Braking ResistorTBD
PWR20100.1-1K Ω0.5 %,1 %, 5 %±20 to ±90 ppm0.5 WSurface Mount WirewoundPWR2010
PWR26150.01-3K Ω1 %, 5 %±20 to ±150 ppm1 WSurface Mount WirewoundPWR2615
PWR30140.1-4K Ω0.5 %,1 %, 5 %±20 to ±90 ppm1 WSurface Mount WirewoundPWR3014W
PWR43180.1-8K Ω0.5 %,1 %, 5 %±20 to ±90 ppm2 WSurface Mount WirewoundPWR4318W
PWR45250.01-15K Ω1 %, 5 %±20 to ±150 ppm2 WSurface Mount WirewoundPWR4525
PWR53220.1-15K Ω0.5 %,1 %, 5 %±20 to ±90 ppm3 WSurface Mount WirewoundPWR5322W
PWR69270.05 to 16K Ω0.5 %, 1 %, 5 %±20 PPM/°C ~ ±300 PPM/°C3 WSurface Mount WirewoundPWR6927
PWR80300.05 to 22K Ω0.5 %, 1 %, 5 %±20 PPM/°C ~ ±300 PPM/°C5 WSurface Mount WirewoundPWR8030
PWR89370.05 to 33K Ω0.5 %, 1 %, 5 %±20 PPM/°C ~ ±300 PPM/°C5 WSurface Mount WirewoundPWR8937
PWRA2470.05 to 50K Ω0.5 %, 1 %, 5 %±20 PPM/°C ~ ±300 PPM/°C7 WSurface Mount WirewoundPWRA247
PWRB0530.05 to 70K Ω0.5 %, 1 %, 5 %±20 PPM/°C ~ ±300 PPM/°C10 WSurface Mount WirewoundPWRB053
S-SL0.005 - 50K Ω0.05 % - 5 %±20 - ±150 ppm0.5 - 4 WSurface Mount WirewoundSSL
UAL0.01 - 250K Ω0.01 % - 10 %±20 - ±150 ppm7.5 - 50 WAluminum Housed WirewoundUAL
UWP1-1K Ω1 %, 5 %< 260 PPM/°C20 - 100 WHigh Power Ceramic Wirewound ResistorTBD

Using power resistors for power supply systems

As an experienced distributor, Rotima AG offers high-performance solutions in the field of power resistors in close cooperation with the world's leading manufacturers Bourns and VPG Foil Resistors. Our customers benefit from a wide range of high power resistors specifically designed for industrial applications, power supply systems, motor controls or audio amplifiers.

Thanks to state-of-the-art technology, low inductance and high thermal stability, our products are also suitable for sensitive applications such as aviation or telecommunications. At Rotima AG, you not only receive reliable components, but also personal advice and technical support - for the safe and efficient integration of your power resistors.
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Our range of other resistors:

Wire resistors
Wire resistors
Current  Sense / Shunts
Current Sense / Shunts
Customized resistors
Customized resistors
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Technical properties of power resistors explained

Power resistors are designed in such a way that they can absorb large amounts of energy in the form of heat and dissipate it in a controlled manner. They typically consist of a resistor element on a ceramic or metallic carrier structure, which is realized using thick film, wire or foil technology, depending on the design. High-quality models such as those from Bourns or VPG Foil Resistors are characterized by low inductance, high thermal load capacity and precise resistance values. Electrical insulation from the heat sink and standardized housing shapes such as TO-220 or D2PAK enable easy integration into existing circuits. Power resistors regulate currents, protect sensitive components and stabilize operating voltages.
Customized resistors
What can we do for you?
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Tobias Nuffer
Tobias Nuffer
Managing Director & Key Accounting DE
+49 8341 93403 20
[email protected]
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Rotima Andrei Jantea
Andrei Jantea
Sales- and Productmanagement
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Further information on power resistors

In this section, we have compiled the most important questions on the subject of power resistors for you. Here you will find useful information on the basics, the areas of application and the advantages of our products
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