Isabellenhütte AZ-H1 Series

  • Isabellenhütte

Product Features

  • Current sensing resistor
  • 4-terminal through-hole design
  • Resistance range from 0.002Ω to 5Ω
  • Tolerance of ±0.1% or ±1%
  • TCR of <±3 ppm/°C or <±10 ppm/°C (+20°C to +60°C)
  • Power rating 10W on a suitable heat sink
  • Temperature range from -55°C to +140°C


The AZ-H1 current sensing precision resistor series from Isabellenhütte offers 4-terminal through-hole connection technology for current sensing applications with very low TCR. Designed for easy heat sink mounting, the Kelvin connections on this resistor allow high precision measurements even with a low resistance range of 2mΩ to 5Ω. The AZ-H1 series from Isabellenhütte has low inductance and has high pulse power handling capabilities.

  • 4-terminal current sensing resistor
  • Through-hole
  • Resistance range from 0.002Ω to 5Ω
  • Tolerance options available of ±0.1% and ±1%
  • TCR of <±3 ppm/°C or <±10 ppm/°C (+20°C to +60°C)
  • Temperature range from -55°C to +140°C
  • Power rating of 10W on a suitable heat sink
  • Power rating of 3W in free air
  • Inductance of <10nH
  • Maximum constant current of 70A (0.002Ω)
  • Designed for easy heat sink mounting
  • Low self-heating


Typical applications for the AZ-H1 current sensing precision resistor series include:

  • Measurement equipment
  • Reference resistors in laboratories
  • Current sources
  • Laboratory power supplies

Isabellenhütte AZ-H1 Series Specification Table

Resistance value *2mΩ to 5Ω
Tolerance±0.1% / ±1%
TCR±3 ppm/°C, ±10 ppm/°C (20-60°C)
Temperature range-55°C to +140°C
Power rating3W (free air) / 10W (on a suitable heatsink)
Thermal resistance to ambient<15°C/W (Rth)
Thermal resistance to aluminium substrate<3°C/W (Rthi)
Dielectric withstanding voltage500V AC/DC
Stability (deviation after 2000hrs)<0.1% (Tᴋ = 80°C with heatsink) / <0.2% (Tᴋ = 95°C with heatsink)
Tᴋ = Terminal Temperature

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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 such as the ones above. Isabellenhütte & Rhopoint Components are your ideal partners when it comes to achieving the best possible measurement results in the smallest spaces. Please visit for more information.

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Dimensions 18.5 x 5 x 46mm
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