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Bourns MSF Four-Terminal Shunt Power Resistors

Bourns MSF Four-Terminal Shunt Power Resistors feature a four-terminal Kelvin design that minimizes measurement errors caused by lead resistance. These four-terminal shunt power resistors are constructed using a Manganin® resistance element welded to Oxygen-Free High Conductivity (OFHC) copper terminals and protected by a flame-resistant high-temperature silicone coating. The construction allows the resistors to provide outstanding thermal stability and rugged environmental performance. Bourns MSF resistors deliver accurate current sensing in power conversion, battery management, motor control, welding equipment, and industrial power systems.

Features

  • Radial, self-supporting, PC board mounting
  • Four-terminal Kelvin measurement design
  • 5W power rating
  • 100A maximum current
  • -55°C to +275°C operating temperature range
  • ±100ppm/°C TCR
  • 1000VAC dielectric strength
  • 0.5mΩ to 5mΩ resistance range
  • Flame-resistant coating
  • RoHS compliant

Applications

  • Battery management systems (BMS)
  • Power supplies and power conversion equipment
  • Industrial motor controls
  • Current monitoring circuits
  • Welding equipment
  • Energy storage systems (ESS)
  • Industrial automation and control systems

Dimensions

Mechanical Drawing - Bourns MSF Four-Terminal Shunt Power Resistors

Power Derating Curve

Performance Graph - Bourns MSF Four-Terminal Shunt Power Resistors
Published: 2026-10-30 | Updated: 2026-11-03