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The A-H2 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 a low resistance value range from 1mΩ to 100Ω available. The A-H2 series from Isabellenhütte has low inductance 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/K (between +20°C and +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-H2 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.
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