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The VMI current sensing precision resistor series from Isabellenhütte offers 2-terminal surface-mount connection technology for current sensing applications. Developed with a small chip size of 0805, resistance values available 0.01Ω, 0.012Ω, 0.02Ω, 0.03Ω and 0.05Ω, with a 0.5W power rating at +100°C. The VMI series from Isabellenhütte offers excellent long term stability and a high pulse power rating.
- Current sensing precision resistor
- 2-terminal surface-mount design in a 0805 chip size
- Resistance values of 0.01Ω, 0.02Ω, 0.03Ω and 0.05Ω
- Tolerance of ±5%
- TCR from <±30 ppm/°C (+20°C to +60°C) *
- Power rating up to 0.5W (at +100°C)
- Constant current up to 7A (0.01Ω)
- Temperature range from -65°C to +170°C
- Dielectric withstanding voltage of 200V AC/DC
- Inductance of <1nH
- Stability (at rated power) deviation after 2000h of <0.5% (TK=100°C) / <1% (TK=130°C) (TK = Terminal temperature)
- Dielectric withstanding voltage of 200V AC/DC
* 0.01Ω, 0.02Ω: TCR is <±50ppm/°C
Typical applications for the VMI current sensing precision resistor series include:
- Current sensor for power hybrid applications
- Control systems for the automotive market, amongst others for LED-applications
- Power modules
- Frequency converters
- Switch mode power supplies
Isabellenhütte VMI Series Specification Table
| Attributes | Value |
|---|---|
| Resistance value * | 10mΩ / 12mΩ / 20mΩ / 30mΩ / 50mΩ |
| Tolerance * | ±1% * / ±5% |
| TCR | <30ppm/°C (20-60°C) ** |
| Temperature range | -65°C to +170°C |
| Power rating | 0.5W |
| Internal heat resistance | <80°C/W (Rthi) |
| Dielectric withstanding voltage | 200V AC/DC |
| Inductance | <1nH |
| Stability (deviation after 2000hrs) | <0.5% (Tᴋ = 100°C) / <1% (Tk=130°C) Tᴋ = Terminal Temperature |
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.
