SR731E-RT (0402 Anti-Sulfur) Current Sensing Chip

By KOA Speer Electronics, Inc. 110

SR731E-RT (0402 Anti-Sulfur) Current Sensing Chip

KOA Speer Electronics has expanded its SR73-RT series of low-resistance anti-sulfuration current sense resistors with a 0402 package size. The SR731E-RT series is available in ±1%, ±2%, and ±5% tolerances with resistance values from 1 Ω up to 10 Ω, a power rating of 1/8 W, and an operating temperature range of -55°C to +155°C.

SR73-RT series current sense resistors offer excellent anti-sulfuration characteristics due to the use of a special high-sulfuration-proof inner top electrode material and are designed for use in harsh environments with a high level of sulfur contamination.

The SR731E-RT current sense resistors are ideal for use in outdoor environment applications in mining, agriculture, winemaking, and oil/gas. They are also an excellent choice for use in automotive electronics and factory automation. These resistors are AEC-Q200 qualified.

  • 0402 (0.166 W power rating) anti-sulfur current sense chip resistor
  • Excellent anti-sulfuration characteristics due to using high sulfuration-proof inner top electrode material
  • High reliability and performance with low +0.5% tolerance
  • AEC-Q200 qualified
Technical Information
  • Power rating: 0.166 W in a 0402 chip size
  • Resistance range: 1 Ω to 10 Ω
  • TCR: ±200 ppm/°C
  • Tolerances: ±1%, ±2%, and ±5%
  • Operating temperature range: -55°C to +155°C
  • HDDs
  • Cellular phones
  • Notebook PCs
  • Motor controls
  • Power supplies
Target Markets
  • Transportation
  • Industrial
  • Consumer electronics
  • Telecommunications