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The A-H1 current sensing precision resistor series from Isabellenhütte offers 4-terminal through-hole connection technology for current sensing applications. Designed for easy heat sink mounting, the Kelvin connections on this resistor allow high precision measurements even with low resistance values ranging from 1mΩ to 100Ω. The A-H1 series from Isabellenhütte has a low inductance of <10nH and has high pulse power handling capabilities.
- 4-terminal current sensing resistor
- Through-hole
- Resistance range from 0.001Ω to 100Ω
- Tolerance options available of ±0.1% and ±1%
- TCR of <±30 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 81A
- Designed for easy heat sink mounting
- Low self-heating
Typical applications for the A-H1 current sensing precision resistor series include:
- Measurement equipment
- Reference resistors in laboratories
- Current sources
- Laboratory power supplies
Isabellenhütte A-H Series Specification Table
| Attributes | Value |
|---|---|
| Resistance value * | 1mΩ to 100Ω |
| Tolerance | ±0.1% / ±1% |
| TCR | <±30 ppm/°C (20-60°C) |
| Temperature range | -55°C to +140°C |
| Power rating | 3W (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 voltage | 500V AC/DC |
| Inductance | <10nH |
| Stability (deviation after 2000hrs) | <0.1% (Tᴋ = 80°C with heatsink) / <0.2% (Tᴋ = 95°C with heatsink) Tᴋ = Terminal Temperature |
* Please visit the Ordering Info tab or contact us for further details
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 www.isabellenhuette.de for more information.
