High Power Precision Current Measurement
100A shunt resistor
Metal DC Shunt Resistor

100A Precision Metal Current Sensor DC Shunt Resistor

  • Precision current sensing up to 100A

  • Low resistance, high efficiency

  • Stable metal alloy construction

  • Low TCR (≤50ppm/°C)

  • Compact open-air design

  • Ideal for BMS, inverters, DC systems

Category:

Description

100A Metal Shunt | DC Current Measurement Resistor

Product Overview

A current shunt resistor, also known as a current sense resistor or ammeter shunt, is a specially designed low-resistance component used to monitor and measure electrical current in a circuit. By placing the shunt in series with the load, it creates a small, measurable voltage drop that reflects the amount of current flowing — as described by Ohm’s Law (I = V/R).

Our 100A metal DC shunt resistors are engineered for high-precision current measurement in demanding applications. With excellent thermal stability and robust mechanical structure, they are ideal for both DC and AC circuits requiring reliable current sensing.

Key Features of the 100A Shunt Resistor

  • ✅ High accuracy and stability under continuous load

  • ✅ Low temperature coefficient (TCR ≤ 50ppm/°C) ensures precision across wide temperature ranges

  • ✅ Non-inductive design improves high-frequency performance

  • ✅ High overload capacity for demanding electrical systems

  • ✅ Fully compliant with RoHS environmental standards

  • Dimension


  • Productsize:unit mm
    model D A B F M C(Test screwempt)
    100A-75mV 120±2 22±1 100±1 49±1 4±0.2 φ10.5±0.2 M4
    104±2 22±1 85±1 62±1   2±0.2
    3±0.2    		 Φ8.5±0.2 M4
    49±1
    200A-75mV 120±2 22±1 100±1 49±1 4±0.2 φ10.5±0.2 M4
    104±2 22±1 85±1 49±1 3±0.2 Φ8.5±0.2 M4
    250A-75mV 120±2 22±1 100±1 49±1 4±0.2 Φ8.5±0.2 M4
    300A-75mV 120±2 22±1 100±1 49±1 4±0.2 Φ8.5±0.2 M4
    120±2 26±1 100±1 55±1 4±0.2 Φ10±0.2 M4
    400A-75mV 120±2 29±1 100±1 49±1 4±0.2 Φ10.5±0.2 M4
    500A-75mV 120±2 36±1 100±1 49±1 4±0.2 Φ10.5±0.2 M4
    600A-75mV 120±2 44±1 100±1 49±1 4±0.2 Φ8.5±0.2 M4

Technical Parameters

Product range Rated current Rated voltage drop accuracy
FL3 series 100A 75mV 0.2%

0.5%

1%

2%

5%
200A
250A
300A
400A
500A
600A

Applications

These current sensing resistors are widely used across various industries for current detection, monitoring, and protection:

  • ⚡ Power electronics – inverters, converters, SMPS

  • 🔋 Battery management systems (BMS)

  • 🛠️ Motor control and drives

  • 🏭 Industrial automation equipment

  • 🚗 Automotive electronics

  • 📡 Communication and smart grid systems

Whether you’re designing DC power supplies, electric vehicles, or precision instruments, our metal alloy shunt resistors offer the accuracy, durability, and efficiency your system requires.

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