The following are the main brands of professional low resistance resistors (usually referring to resistors below 1 Ω, also known as milliohm resistors, current detection resistors, or sampling resistors), classified and organized according to their technical characteristics and market positioning:
1、 Guangjie Technology (Viking, Taiwan, China)
Focused on thin film and alloy resistance technology, renowned for its high precision and wide product line:
LR series alloy resistor
Resistance range: 0.0005 Ω -0.2 Ω (0.5m Ω -200m Ω)
Accuracy: ± 0.5% - ± 5%
Temperature coefficient (TCR): as low as ± 50ppm/℃
Power: up to 3W (packaged in 2512)
Applications: power adapter, car battery protection board, motor control.
CS series thin film current detection resistor
TCR optimization: ± 50ppm/℃ (thin film process)
Power coverage: 1/20W-3W (packaged 7520/1225, etc.)
High frequency scene adaptation: low inductance design.
2、 Yezhan Electronics (Mainland China)
Chinese professional low resistance resistor manufacturer, established in 2005, certified according to IATF 16949 automotive standards, focusing on customization and high-power scenarios:
Core advantages
Patent alloy technology: temperature coefficient as low as ± 40ppm/℃, accuracy of ± 2% - ± 10%
Overcurrent capability: 3-25 amperes (such as YSR pin type resistors).
Application Fields
Automotive electronics (battery management system), military, medical equipment power supply
Fill the domestic gap: Micro alloy surface mount resistors for mobile phone batteries.
3、 Dejian Electronics (Token, Taiwan, China)
Kelvin Connection Technology Leader, specializing in high current shunt resistors:
LPS series four terminal resistor
Resistance range: 0.002 Ω -0.05 Ω (2m Ω -50m Ω)
Power: 1-5W (supporting 100A instantaneous current)
Structural design: U-shaped pins reduce inductance and are suitable for high-frequency/surge environments.
Key applications:
Inverter, CPU driver, and overcurrent protection for electric tools.
4、 Start Electronics (RESI, Chinese Mainland)
High power ultra-low resistance resistor representative, certified by IATF 16949:
PWSL series features:
Resistance as low as 0.5m Ω, power up to 7W
Accuracy ± 1%, TCR ± 50ppm
Low thermoelectric potential design, suitable for precision current detection.
5、 Other international brand supplements
Vishay (USA): WSK/WSI series alloy resistors with TCR as low as ± 20ppm (not directly mentioned, industry recognized).
KOA (Japan): SP/RLP series, high-power metal plate resistors (not directly mentioned, industry recognized).
Brand selection suggestions
|Demand scenario | Recommended brand | Key advantages|
|High precision, wide resistance | Viking | Thin film technology ± 0.01% accuracy, 5ppm TCR|
|Automotive/Military Customization | Industrial Exhibition Electronics | IATF 16949 Certification, ± 40ppm TCR|
|High current shunt (>50A) | Token | Four terminal Kelvin structure, 100A load capacity|
|Ultra high power (>5W) | RESI | 7W power, 0.5m Ω ultra-low resistance|
>Note: The above parameters are from publicly available brand information, and actual selection needs to be verified in conjunction with circuit design. The complete product specifications can refer to the official websites of various brands or the technical documents of agents.