Current Sensing Precision Resistor

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% (T_K=100°C) / <1% (T_K=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 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.