Isabellenhütte

Isabellenhutte - Shape the Future with us

One of the most important manufacturers of electrical resistance and thermoelectric materials for temperature measurement as well as of passive components for the automotive, electrical and electronics industries.

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Our precision and power resistors can be divided into two areas, distinguished by their manufacturing technologies: ISA-PLAN® and ISA-WELD®. These two technologies make it possible for us to meet the highest requirements posed on precision resistors. In addition, we offer shunts with low temperature coefficients (TC). The two technologies complement each other, thus allowing for the extensive production of precision resistors in the value range of 2 µohm to 100 ohm.

Our precision and power resistors guarantee:

High continuous resilience with a small design
Standard delivery of the strictest tolerances
High continuous and pulse resistance
Low-resistance resistors from 2 µohm
Very good long-term stability
Extremely low TC values
Thermal stress against copper is largely eliminated

ISA-WELD®

The power and precision resistors of the patented ISA-WELD® procedure consist of solid, electron beam-welded composite material made of copper and one of our resistance alloys (MANGANIN®, ZERANIN®, ISAOHM®, Aluchrom). 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. These high-current shunts are used in battery management, in the automotive industry, battery charging technology, drive technology and in electronic energy meters for high-current applications.

ISA-PLAN®

With our ISA-PLAN® technology, the elements of a precision and power resistor are etched from the films of our resistance alloys (MANGANIN®, ZERANIN®), which are electrically isolated and applied to a good heat-conducting metal substrate. The planar structures of our precision and power resistors and an optimised current density distribution allow for low-inductance designs and very low thermal internal resistance. An optimised current density distribution thus prevents the risk of hot spots.