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
Description
Product Overview
Our 100A DC Shunt Resistor offers precise current measurement with ±1% tolerance and stable performance under high loads. Built with a robust metal element, it ensures low resistance drift and thermal stability, making it ideal for EVs, battery BMS, solar inverters, and industrial control systems.
Feature of DC 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
Model D A B F M C (Test screw hole) Thread 100A-75mV 120±2 22±1 100±1 49±1 4±0.2 Φ10.5±0.2 M4 100A-75mV (Alt) 104±2 22±1 85±1 62±1 2±0.2 Φ8.5±0.2 M4 100A-75mV (Alt 2) — — — 49±1 3±0.2 Φ8.5±0.2 M4 200A-75mV 120±2 22±1 100±1 49±1 4±0.2 Φ10.5±0.2 M4 200A-75mV (Alt) 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 300A-75mV (Alt) 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 - DC Shunt Resistor Key Specifications
| Product Range | Rated Current | Rated Voltage Drop | Accuracy |
|---|---|---|---|
| FL3 Series | 100A | 75mV | 0.2% / 0.5% / 1% / 2% / 5% |
| 200A | 0.2% / 0.5% / 1% / 2% / 5% | ||
| 250A | 0.2% / 0.5% / 1% / 2% / 5% | ||
| 300A | 0.2% / 0.5% / 1% / 2% / 5% | ||
| 400A | 0.2% / 0.5% / 1% / 2% / 5% | ||
| 500A | 0.2% / 0.5% / 1% / 2% / 5% | ||
| 600A | 0.2% / 0.5% / 1% / 2% / 5% |
Applications in EV & Solar Systems
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.
For technical standards on shunt resistors and current sensing design, refer to
IEEE Official Website.
Learn More About Precision Current Sensing
