Introduction

Isabellenhütte Shunt Resistors

Isabellenhütte is one of the world’s leading suppliers of high-quality precision and power resistors. They produce these low-resistance resistors for a variety of applications. They are your ideal partner when it comes to achieving the best possible measurement results in the smallest spaces.

Isabellenhütte’s innovative shunt technology affords you the best possible measurement results. With decades of experience and profound expertise, Isabellenhütte produces precision resistors for the highest technical requirements. Their series is qualified according to AEC-Q200 specifications. They are RoHs-compliant and in part are qualified for use in space according to ESCC.

Application and customer-specific designs: Isabellenhütte sees itself as a strong partner with customer-specific solutions. In the field of ISA-WELD® resistors, Isabellenhütte provides solutions in the area of resistance values, construction methods and bonding methods.

Products

  • SMD Assembly
  • High Current Applications
  • Hybrid Assembly
  • Aviation and Aerospace
  • Printed Circuit Board Assembly
  • Heat Sink Assembly
  • Calibration Resistors

Shunt Resistors for SMD Assembly

SMD stands for surface-mounted-device. By their connecting surfaces the SMD-components are soldered directly on a PCB. Isabellenhütte’s precision and power resistors in the field of SMD-mounting offer many advantages in standard sizes.

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All DATASHEETS for each part are available on the Isabellenhütte page.

 

TypePictureDescriptionDesignPowerToleranceTCRResistance (min)Resistance (max)
BRS2-terminal-resistors made of composite material. Ideal for use on DBC or ceramic. Space-saving design.38122 W0.01100 ppm/K0.002 Ω0.025 Ω
BVB4-terminal-resistors made of composite material. Ideal for use on DBC or ceramic. Space-saving design.272512 W0.0120 ppm/K0.0002 Ω0.005 Ω
BVE2-terminal-resistors with large connectors for high performance.593015 W0.0150 ppm/K0.0001 Ω0.002 Ω
BVF2-terminal current sensing resistor, very small size12133 W0.0170 ppm/K0.001 Ω0.0015 Ω
BVHSolid copper connections38205 W0.03300 ppm/K0.0003 Ω0.002 Ω
BVN4-terminal resistor of composite material. Ideal for use on DBC or ceramic. Space-saving design.121610 W0.0150 ppm/K0.0005 Ω0.001 Ω
BVR4-terminal resistor of composite material. Ideal for use on DBC.40265 W0.0120 ppm/K0.0002 Ω0.003 Ω
BVS2-terminal resistor of composite material.392012 W0.0150 ppm/K0.0002 Ω0.005 Ω
BVT2-terminal resistor of composite material.25126 W0.0150 ppm/K0.0003 Ω0.0068 Ω
BVZ2-terminal-resistors made of composite material. Ideal for use on DBC or ceramic. Space-saving design.40269 W0.0160 ppm/K0.000525 Ω0.003 Ω
CMK2-terminal resistor for medium power requirements. Low TCR.12061 W0.0150 ppm/K0.010 Ω0.100 Ω
CMP2-terminal resistor for medium power requirements. Low TCR.20102 W0.0150 ppm/K0.010 Ω0.500 Ω
CMS2-terminal resistor for medium power requirements. Low TCR.25122.5 W0.0150 ppm/K0.010 Ω0.050 Ω
FMK2-terminal-resistor. Low resistance values <= 6 milliohm. Good TCR. Under development. 12064 W1/5 %<50 ppm/K0,001 Ω0,006 Ω
FMP2-terminal-resistor. Low resistance values <= 6 milliohm. Good TCR. Under development. 20202,5 W1/5 %<50 ppm/K0,003 Ω0,005 Ω
FMS2-terminal-resistor. Low resistance values <= 6 milliohm. Good TCR. Under development25125 W1 / 5 %<50 ppm/K0,0015 Ω0,006 Ω
GMP4-terminal resistor with gold-plated contact surface.20101 W0.0150 ppm/K0.010 Ω0.080 Ω
SMK2-terminal resistor with large solder pads.12061 W0.0150 ppm/K0.005 Ω0.5 Ω
SMK-R000Power bridge / jumper.12060.5 W3800 ppm/K0.0002 Ω
SMP2-terminal resistor with large solder pads.20103 W0.00550 ppm/K0.005 Ω1 Ω
SMR2-terminal resistor for high pulse load.47235 W0.00550 ppm/K0.01 Ω4.7 Ω
SMS2-terminal resistor with large solder pads.25125 W0.00550 ppm/K0.005 Ω1 Ω
SMS-R000Power bridge / jumper. Standard solder pad geometry.25122 W3800 ppm/K0.0002 Ω
SMT2-terminal resistor with large solder pads.28177 W0.00550 ppm/K0.004 Ω4.7 Ω
SMT-R000Power bridge / jumper. Standard solder pad geometry.28172 W3800 ppm/K0.0002 Ω
SMV4-terminal resistor for high pulse load.47235 W0.00530 ppm/K0.001 Ω1 Ω
VLK2-terminal resistor. Large solder pads. Very low resistance values.6121 W0.0150 ppm/K0.001 Ω0.005 Ω
VLP2-terminal resistor. Long side terminated. Large solder pads. Very low resistance values.10202 W0.0150 ppm/K0.003 Ω0.006 Ω
VMI2-terminal resistor. Standard solder pad geometry. Low TCR.8050.5 W0.0530 ppm/K0.01 Ω0.05 Ω
VMI-R000Power bridge / jumper.8050.25 W3200 ppm/K0.0002 Ω
VMK2-terminal resistor. Standard solder pad geometry. Low TCR.1206up to 1.5 W0.0120 ppm/K0.01 Ω0.47 Ω
VMK-NA2-terminal resistor. Standard solder pad geometry. Low TCR. Gold-plated contact.12061 W0.0120 ppm/K0.1 Ω0.1 Ω
VMP2-terminal resistor. Standard solder pad geometry. Low TCR.2010up to 3 W0.0120 ppm/K0.005 Ω1 Ω
VMP-NA2-terminal resistor. Standard solder pad geometry. Low TCR. Gold-plated contact.20102 W0.0120 ppm/K0.025 Ω0.080 Ω
VMS2-terminal resistor. Standard solder pad geometry. Low TCR.2512up to 4 W0.0120 ppm/K0.005 Ω1 Ω

 

Features

  • Permanent power up to 15 W
  • Constant currents up to 220 A
  • Small size, e.g. 0805 or 1206
  • Very high pulse power rating
  • Very good long-term stability
  • Low TCR (Temperature Coefficient of the Resistor)
  • Extremely low Rthi
  • Components mounting: Reflow- and IR-soldering, (conductive adhesive) bonding
  • Mainly standard-soldering-pad-geometry
  • Many components with AEC-Q200-qualification
  • RoHS compliant

 Advantages

  • Very low thermal EMF (Electromotive Force) versus copper (under 1 µV/K)
  • Large soldering and contact field
  • High mechanical strength of the solder joint
  • Impervious to thermocycling

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Shunt Resistors for high current applications

Composite material (ISA-WELD®) for high current sensing and energy measuring. To assure an ideal transition these resistors are ideally mounted on a busbar. If you are interested in buying Isabellenhütte products, please visit our Webshop

TypePictureDescriptionDesignPowerToleranceTCRResistance (min)Resistance (max)
BACPrecision resistor incl. PCB with sense connection, eg. for battery management systems or welding equipment.8420 (metrisch)15 W0.05150 ppm/K0.00005 Ω0.0001 Ω
BASPrecision resistor, eg. for battery management systems or welding equipment.8420 (metrisch)30 W0.0550 ppm/K0.000035 Ω0.0005 Ω
BAXPrecision resistor, eg. for battery management systems or welding equipment.8436 (metrisch)50 W0.0550 ppm/K0.00002 Ω0.000005 Ω
BKW4-terminal precision resistor eg. for energy meters / kWh meters.2919 (metrisch)3 W0.0520 ppm/K0.0003 Ω0.0005 Ω
BVDPrecision resistor for kWh meters and battery charger. Power connection via threaded bolts.3512 (metrisch)3 W0.0550 ppm/K0.0005 Ω0.0005 Ω
BVM-FPrecision resistor for kWh meters and battery charger. Power connection via threaded bolts.3516 (metrisch)5 W0.0550 ppm/K0.0001 Ω0.0005 Ω
KVMPrecision resistor for battery management systems and battery charger.3516 (metrisch)7 W0.0550 ppm/K0.0001 Ω0.0001 Ω

Features

  • Continuous power up to 30 W
  • Constant current up to 350 A
  • High current and pulse load capacity
  • Low ohmic current sensors
  • Made of electron beam welded composite material
  • RoHS compliant

Advantages

  • 4-terminal-connecting technology
  • Suitable for soldering temperatures up to 350 °C (except  product type BAC)
  • Components are in case of correct handling nearly indestructible
  • Can be soldered and welded
  • Very low ohmic resistance values

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Shunt Resistors for Hybrid Assembly

Bondable resistors for power hybrids used in power modules in frequency converters. The resistors are highly durable and offer a large flexibility in design due to an integrated assembly in semi conducted modules.

Extensive bonding on an ideal heat conductive DBC (Direct Bonded Copper) substrate is the benefit of this design.

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TypePictureDescriptionDesignPowerToleranceTCRResistance (min)Resistance (max)
PLU 4-terminal resistor with gold-plated contact surface.24395 W0.0550 ppm/K0.001 Ω0.001 Ω
PMBBondable high power resistor. 2- and 4-terminal connection.393920 W0.0130 ppm/K0.001 Ω20 Ω
PMHBondable high power resistor with gold-plated contact surface. 2- and 4-terminal connection.25125 W0.00530 ppm/K0.005 Ω0.05 Ω
PMH-DBondable high power resistor with gold-plated contact surface. 2- and 4-terminal connection.25125 W0.0550 ppm/K0.002 Ω0.002 Ω

Features

  • Bondable resistor
  • Permanent power up to 20 W
  • Constant currents up to 140 A
  • Very good heat dissipation
  • High loading capacity
  • Mounting: Reflow-, IR-soldering or bonding on substrate
  • RoHS compliant

Advantages

  • 4-terminal-connecting technology
  • Conductive DBC-/IMS(Injection Molded Solder)-soldering assembly
  • Nickel-plated/Au-plated bondpads
  • Low resistance values

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Shunt Resistors in the aviation and aerospace areas

Whenever the highest reliability, precision and longevity are required, there is no way around the low-ohmic precision and power resistors from Isabellenhütte.

It is not without reason that  Isabellenhütte has been supplying measuring resistors to the aerospace industry for more than ten years.

Isabellenhütte always meets the toughest quality standards and consider customers’ individuals requirements (ESCC 4001). In addition, the SnPb-tinned contacts avoid the forming of whisker and thus short circuits in many applications.

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TypePictureDescriptionDesignPowerToleranceTCRResistance (min)Resistance (max)
SMP2-terminal resistor, ESCC 4001/027 qualified.20101 W0.00550 / 100 ppm/K0.005 Ω1 Ω
SMS-PW2-terminal resistor, ESCC 4001/027 qualified.25122 W0.00550 / 100 ppm/K0.003 Ω1 Ω
SMT-PW2-terminal resistor, ESCC 4001/027 qualified.28173 W0.00550 / 100 ppm/K0.004 Ω2 Ω
SMV-PW4-terminal resistor, ESCC 4001/028 qualified.47233 W0.00530 / 50 ppm/K0.0033 Ω1 Ω

Features

  • Power rating up to 3 W (SMD mounting)
  • Constant currents up to 30 A
  • Sizes: 2010, 2512, 2817, 4723
  • Very high pulse power rating
  • Very good long-term stability
  • Low TCR

Service

  • Application-oriented support
  • Internal qualification of the components according to ESC 4001 and customer-specific qualification
  • Simulation of your conditions of use
  • Component optimization for critical applications
  • SMD test board for first trials
  • Comprehensive documentation
  • Standard values can be supplied with SnPb-tinned contacts

Qualification

  • ESCC 4001/027 for aerospace applications
  • ESCC 4001/028 for aerospace applications

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Shunt Resistors for Printed Circuit Board Assembly

Precision and power resistors with low self-heating, intelligent housing-shapes and easily mounted on a heatsink. If you are interested in buying Isabellenhütte products, please visit our Webshop

TypePictureDescriptionDesignPowerToleranceTCRResistance (min)Resistance (max)
A-H4-terminal resistor with low TCR. Low resistance values ​​for high accuracy. ** Installed on heat sink4618,3825 (metrisch)10** W0.00130 ppm/K0.001 Ω100 Ω
AZ-H4-terminal resistor with very low TCR. Low resistance values ​​for high accuracy. ** Installed on heat sink4618,3825 (metrisch)10** W0.0013 ppm/K0.002 Ω1 Ω
PBH2-terminal resistor in space-saving design similar to TO 247. ** Installed on heat sinkTO-247 (ähnlich)10** W0.00550 ppm/K0.002 Ω100 Ω
PBV4-terminal resistor in space-saving design. ** Installed on heat sink2317 (metrisch)10** W0.00530 ppm/K0.0005 Ω1 Ω
PSB2-terminal resistor in space-saving design similar to TO-247. ** Installed on heat sinkTO-247 (ähnlich)10** W0.0150 ppm/K0.005 Ω1 Ω

Features

  • Permanent power up to 10 W
  • Constant currents up to 70 A
  • Ultra low resistance values
  • Very high pulse power rating
  • Very good long-term stability
  • Lower TC values start at 3 ppm/K
  • Heatsink and PCB-mounting possible
  • RoHS compliant

Advantages

  • 4-terminal-connection technology (A-H, AZ-H, PBV)
  • Suitable for wave- and manual-soldering
  • Highest precision

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Shunt Resistors for Heat Sink Assembly

Precision resistors for high currents and power and the possibility for mounting on a heatsink. Suitable as a calibration and reference resistor. If you are interested in buying Isabellenhütte products, please visit our Webshop

TypePictureDescriptionDesignPowerToleranceTCRResistance (min)Resistance (max)
RUG-ZDAkkS-calibratable high-load precision resistor. Suitable as calibration and measuring resistor. ** Installed on heat sink7056 (metrisch)250** W0.0011 ppm/K0.0005 Ω100 Ω

Features

  • Permanent power up to 250 W
  • Constant currents up to 387 A
  • Pulse power rating up to 50 J
  • Lowest resistor values start at 0.5 Ω
  • Very low TC start at 1ppm/K
  • RoHS compliant

Advantages

  • DAkkS*-calibration possible (RUG-Z)
  • Ideal for calibration- and metering applications
  • For highest currents and precision
  • Excellent heat dissipation

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Shunt Resistors as Calibration Resistors

Compact resistor, easy to assemble and able to be calibrated. Suitable for metering of high pulse currents as well as for secure data acquisition of extremely low DC-currents in mA-range. If you are interested in buying Isabellenhütte products, please visit our Webshop

TypePictureDescriptionDesignPowerToleranceTCRResistance (min)Resistance (max)
IKL-FPlug-in calibration resistor for the measurement of currents up to 200 A. *** Only with factory calibration certificate in own DAkkS calibration labaratory possible0.000110 ppm/K0.06 Ω0.06 Ω
IKL-GPlug-in calibration resistor for the measurement of currents up to 200 A. *** Only with factory calibration certificate in own DAkkS calibration laboratory possible0.000110 ppm/K0.00006 Ω0.000005 Ω
IKL-HPlug-in calibration resistor for the measurement of currents up to 2000 A. *** Only with factory calibration certificate in own DAkkS calibration laboratory possible0.000110 ppm/K0.000005 Ω0.00006 Ω
RUG-ZDAkkS-calibratable high-load precision resistor. Suitable as calibration and measuring resistor. ** Installed on heat sink7056 (metrisch)250** W0.0011 ppm/K0.0005 Ω100 Ω

Features

  • Pulse current up to 2,000 A
  • Tolerance up to +/- 0.05 %
  • Long-term stability < 0.05 %
  • Calibration and reference resistor
  • RoHS compliant

Advantages

  • DAkkS*-calibration possible
  • For highest currents and precision

*Die Deutsche Akkreditierungsstelle GmbH (National Accreditation body for the Federal Republic of Germany)

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All information represents the best possible values.

Technology

ISA-PLAN® technology

ISA-PLAN® technology differs from other ISA-WELD® products with respect to the production process, among other aspects. With ISA-PLAN®, the precision resistor elements are etched from films of our resistor alloys. Currently seven ISA-PLAN® SMD product series are available in addition to the conventional 2 and 4-wire current measuring resistors, enabling a wide range of possible applications.

ISA-WELD® technology

In contrast to the manufacturing process for ISA-PLAN® products, the precision and power resistor for the ISA-WELD® procedure consists of solid electron beam-welded composite material made from two copper strips and one of our resistance alloys. This composite material can be adapted to virtually any shape or application in a punching and bending process and therefore allows for the highest possible flexibility within your application design.

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Applications

Shunt Resistors Applications

Several applications areas for the precision and power resistors are covered by Isabellenhütte. For a more detailed overview, please see this Isabellenhütte video.

Since these properties are influenced both by the resistance material used as well as the design and technology, Isabellenhütte has developed two fundamentally different production technologies: ISA-PLAN® and ISA-WELD®.

Application Examples of Power and Precision Resistors in the Automotive Industry

  • ABS (Antilock-Braking-System)
  • Traction Control
  • ACC (Automatic Distance Control)
  • Electrical Steering
  • Electric Park Brake
  • BMS (Battery-Management-System)
  • Catalyst Regulation
  • Diesel- and Gasoline Injection

Application examples of power and precision resistors in different markets

ISA-PLAN® film technology

  • Automotive
  • Power electronics
  • Drive technology
  • Medical technology
  • Aviation and aerospace

ISA-WELD® composite material

  • Automotive
  • E-Mobility
  • Battery charging technology
  • Drive technology
  • Electronic energy meters
  • Energy measurement

Supplier Profile

Company overview

  • Company name: ISABELLENHÜTTE HEUSLER GMBH & CO. KG
  • Headquarters: Dillenburg, Germany
  • Products: shunt resistors distributed by FEEU
  • Company home page: https://www.isabellenhuette.de

ISABELLENHÜTTE, a family-run company, is one of the most important manufacturers of electrical resistance materials and thermoelectric materials for temperature measurement as well as of passive components for the automotive, electrical and electronics industries.

As an internationally recognized specialist and technology leader, Isabellenhütte repeatedly defines the state of technology with its innovative products and underlines the technological and innovative expertise of Isabellenhütte. Isabellenhütte has three different divisions and we distrubute their precision and power resistors.

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