The following is a comprehensive review of the main manufacturers of shunt resistors, summarized based on their technological advantages, product features, and market position:
1、 Internationally renowned manufacturers
Rohm Semiconductor (Japan)
Technical highlights: Focusing on high-power low resistance shunt resistors, such as the GMR series (10W rated power) and LTR series (1W ultra-high power under 1220 size). Its products have passed AECQ200 certification and are suitable for high-precision current detection scenarios such as automotive ECU and industrial equipment power supply. They also have excellent heat dissipation performance and low temperature coefficient (TCR).
Market position: One of the top five shunt resistor manufacturers in the world, with products covering fields such as automotive and consumer electronics, and an annual production capacity of millions.
TT Electronics (UK)
Technical highlights: Launch LRMAP1216 (5W power, 500 μ Ω low resistance) and EBW5216 series (supporting 6000A current detection), using electron beam welding technology, with low inductance and high overload capacity, and certified by AECQ200, suitable for automotive motor control and industrial power management.
Application areas: battery management, welding equipment, energy metering, etc. The product is known for its compact design and precise measurement.
Bourns (Boone, USA)
Technical highlight: Riedon ™ The series shunt resistor covers a current range of 1A to 6000A, with a resistance as low as 0.025m Ω and a tolerance of 0.25%. Manganin is used ™ Alloy material with a working temperature range of 40 ° C to+80 ° C, suitable for high-precision scenarios such as solar inverters and battery management systems (BMS).
Product advantages: Provides panel and bus installation options, supporting harsh environments such as ships and mobile accessories.
Ellon, Vishay, Yageo, etc
Market Overview: The top five global manufacturers hold a 53% market share. Vishay is well-known for its WSBS series splitters, Yageo (Guoju) leads in the field of surface mount resistors, and Murata is deeply involved in the communication and automotive electronics markets.
2、 Chinese domestic manufacturers
Shenzhen Haoou Electronic Technology Co., Ltd
Technical highlights: The core supplier of automotive grade splitters, with products including 0.01% precision thin-film surface mount resistors, constantan/manganese copper wire resistors (temperature drift 50ppm), and support for customized sampling resistors (power 0.1W200W). Through IATF16949 certification, it is widely used in fields such as new energy vehicles and industrial power supplies.
Capacity advantage: With a daily output of 400K, the four major production bases cover South and East China.
Suzhou Lishengda Electronic Technology
Product features: High power shunt resistor (201000W, current 50800A), using alloy welding technology, with various packaging sizes (2512~8518), temperature drift of 15100ppm, suitable for high-power industrial equipment and power systems.
3、 Industry Trends and Competitive Landscape
Market size: China accounts for 52% of the global production share of shunt resistors, with a market size of billions of yuan by 2024. It is expected to have a significant compound growth rate by 2031, driven mainly by the demand for new energy vehicles and renewable energy.
Technical direction: High power miniaturization (such as ROHM's GMR320 size of 7.1mm × 4.2mm), low TCR (below ± 25ppm/℃), and integration of thermal simulation tools have become research and development priorities.
International manufacturers dominate the high-end market with high-precision and automotive certification technology, while Chinese domestic enterprises are rapidly rising in the industrial and automotive grade fields with cost advantages and fast customization capabilities. Users can choose the appropriate manufacturer based on the current range, accuracy requirements, and application scenarios (such as automotive/industrial). For more details, please refer to the official websites of various manufacturers or industry reports.