Isabellenhütte SMS-PW Series

  • Isabellenhütte

Product Features

  • Space approved current sensing precision resistor
  • 2-terminal surface-mount design in a 2512 chip size
  • Resistance range of 0.003Ω to 1Ω
  • Tolerances of ±0.5% and ±1%
  • TCR from ±50ppm/°C (+22°C to +60°C)
  • Power rating of 2W (at +120°C)
  • Temperature range from -55°C to +170°C
  • Aerospace

Applications

The SMS-PW space approved current sensing precision resistor series from Isabellenhütte offers SnPb tinned connections suitable for aviation and aerospace applications being ESCC 4001/027 qualified. Higher power ratings and low internal temperature rises due to the larger pad termination sizes. The MANGANIN® alloy resistance element has a resistance range of 0.003Ω to 1Ω, TCR of ±50ppm/°C at ≥0.01Ω or ±100ppm/°C at <±0.01Ω over the temperature range of +22°C to +60°C (please see the table below for further information) and offers excellent long term stability. The SMS-PW model offers these capabilities in a 2512 chip size.

  • Space approved current sensing precision resistor
  • 2-terminal surface-mount design in a 2512 chip size
  • Resistance range from 0.003Ω to 1Ω
  • Tolerances of ±0.5% and ±1%
  • TCR of ±50ppm/°C at ≥0.01Ω or ±100ppm/°C at <±0.01Ω (+22°C to +60°C)
  • Permanent power rating of 2W (at +120°C)
  • Constant current up to 25A (0.005Ω)
  • Temperature range from -55°C to +170°C
  • Stability of <0.2% (TK=120°C)
    (at rated power, deviation after 2000h according to ESCC generic specification)
  • SnPb tinned connections
  • ESCC 4001/027 qualified

 

Typical applications for the SMS-PW Space approved current sensing precision resistor series include:

  • Aviation and aerospace applications
  • Current sensor for power hybrid applications
  • Control systems for the automotive market
  • Frequency converters and power modules
  • Switch mode power supplies

 

Isabellenhütte SMS-PW Series Specification Table

Attributes
Resistance value *3mΩ to <10mΩ10mΩ to 1Ω
Tolerance *±0.5% / ±1%±0.5% / ±1%
TCR-140, +0ppm/°C (-55 to +22°C)
±100ppm/°C (+22°C to +170°C)
±100ppm/°C (+22°C to +60°C)
-100, +0ppm/°C (-55 to +22°C)
±60ppm/°C (+22°C to +170°C)
±50ppm/°C (+22°C to +60°C)
Temperature range
-55°C to +170°C-55°C to +170°C
Power rating2W2W
Stability (deviation after 2000hrs)
According to ESCC Generic Specification
<0.2% (Tᴋ = 120°C)
Tᴋ = Terminal Temperature
<0.2% (Tᴋ = 120°C)
Tᴋ = Terminal Temperature

* Please contact us or see the Ordering Info tab for more information on the standard resistance values and tolerance
 

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.