EBW Manganin Shunt Resistor

Our EBW (electron-beam welding) manganin shunts, which are punched from precision alloy strip by high-speed stamping machines, have temperature coefficient as low as 20 ppm/k, and the resistance tolerance less than 3%. Due to our high-power electron-beam welding machine, the boundary area of manganin and copper is very smooth, and nearly no welded seam can be observed.

Due to the stable resistivity, narrow resistance tolerance, and low TCR value, our high precision shunts play an important role in the current metering or measurement devices, like battery management system (BMS), electronic control unit, EV/HEV vehicles, power tools, digital meters, or watt meters. The through-holes are important for screw-type EBW shunts, which can be easily connect with the primary wire.

Usually, there are two or three points at the shunt, which serve as sampling points. We can provide lead wire integrated EBW shunt or PCB mount shunt resistor. By further processing, we can also make copper lugs brazed EBW shunt, neutral wire EBW manganin shunt, or brass terminal shunt.

We have devoted to this area for more than 15 years, and can design and manufactured customzied shunt resistors of complicated structures and provide sample within a couple of days, based on the quick prototype technology.

EBW Manganin Shunt Resistor


  • High accuarcy, resistance tolerance <±3%
  • T2 Copper, 6J13 / 6J12 Manganin
  • Temperature coefficient as low as 40 / 20 ppm/K
  • No visible welds, smooth surface
  • Power loss less than 50mW
  • Wide-range of resistance value available
  • Punched by high-speed stamping machines
  • 100% tested by high precision micro ohm meters
  • Quick prototype development and sampling


  • Electrical measuring instruments
  • Electrical protective devices
  • Electronic energy meter
  • Current sensing modules
  • Automatic control system
  • Electric cabinet
  • Motor circuit
  • Electric bicycle (E-bike)
  • Cordless power tool
  • EV/HEV vehicles


DescriptionEBW Manganin Shunt Resistor
TypeFixed Resistor
TechnologyPrecision Alloy
Package TypeThrought Hole
MaterialT2 Copper, 6J13/6J12 Manganin
FinishDegreasing and Anti-tarnishing Treatment, Nickel/Silver/Tin Plating
Welding MethodEBW (Electron Beam Welding)
Resistance Value10~1500 μΩ
Resistance Tolerance±3%, ±5%
Temperature Coefficient±20ppm/K, ±40ppm/K
Current Rating10~200 A
Rated Power0.3~3.6 W
Operating Temperature:-65~+170℃
WeightApprox. 1~200 g
Accept CustomizedYes

Typical Products

Model (Part Number) Resistance (μΩ) Mounting Hole (mm) Length (Dist.) (mm) Thickness (mm) Weight (g)
SE100-10A 100 2-Φ5.2 26.4 (16.4) 2.0 10
SE100-12B 120 2-Φ5.3 33 (21) 2.0/3.0 16
SE100-12C 120 2-Φ4.2 26 (16) 3.0 15.6
SE60-18A 175 2-Φ6.2 32 (21) 1.2 4
SE60-30B 300 2-Φ5.2 28 (18) 1.5 12
SE80-30A 300 / 29.5 1.0 4
SE70-35A 350 2-Φ5.2 74 (64) 1.6 9.1
SE80-35B 350 / 82 2.0 12.5
SE70-40B 400 2-Φ5.3 33 (21) 2.0/3.0 15.2
SE30-50C 500 2-Φ5.0 27.5 (18) 1.0 3
SE50-50A 500 2-Φ4.2 30 (21) 1.5 4
SE45-72A 720 2-Φ4.2 53.3 (46.3) 1.2 4.6
SE30-100A 1000 2-Φ4.2 34 (25) 1.0 3
SE30-150A 1500 2-Φ4.2 34 (25) 1.0 3

The above data are selected from some popular models we produce. Please contact us for detail datasheet. We can also design some special EBW manganin shunt resistors to meet customers’s special requirements.

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EBW Manganin Shunt Resistor