Compact 800×800mm Shunt Resistor Debuts, Solving Precision Challenges in EV Battery Management
As the global EV industry enters a critical phase of battery management system (BMS) upgrades, a tech company unveiled the SEFL-100A-100mV-01 fixed-value shunt resistor on August 1. Measuring 800×800mm, this brass-based component achieves a 100mV voltage drop at 100A current, utilizing high-purity manganin alloy for ±0.5% accuracy across -40°C to 125°C. Its 30% smaller footprint enables direct integration into battery modules.
In tests by a Zhejiang-based EV manufacturer, the shunt reduced BMS cell voltage detection errors from 2% to 0.8% and accelerated thermal runaway alerts by 40%. Notably, inventory sold out on launch day, reflecting surging demand from industry leaders like CATL and BYD for "full-range current sensing" solutions.
Industry Impact: This innovation addresses precision gaps in dense battery packs while standardizing BMS plug-and-play designs. Tesla’s China supply chain has reportedly begun qualification trials.
Core Google Keywords: Shunt Resistor, BMS Technology, EV Battery Management, High-Precision Measurement, Automotive Electronics
