Isabellenhütte SMP-PW Series

The SMP-PW space approved precision resistor series from Isabellenhütte offers SnPb tinned connections suitable for aviation and aerospace applications being ESCC 4001/027 qualified. They are designed with high power ratings and have low internal temperature rises due to the larger pad termination sizes. Their low resistance range enables makes them ideal for current sensing applications. The MANGANIN^® alloy resistance element has a resistance range of 0.005Ω 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 SMP-PW model offers these capabilities in a 2010 chip size.

• Space approved precision current sensing resistor
• 2-terminal surface-mount design in a 2010 chip size
• Resistance range from 0.005Ω 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)
• Power rating of 1W (at +130°C)
• Constant current up to 24A (0.005Ω)
• Temperature range from -55°C to +170°C
• Stability of <0.2% (T_K=130°C)
  (at rated power, deviation after 2000h according to ESCC generic specification)
• SnPb tinned connections
• ESCC 4001/027 qualified

Typical applications for the SMP-PW space approved precision resistor series include:

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