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High-Precision Alloy Current-Sensing Resistors & Shunts (Alloy Resistors)
Product Description
Detailed Classification Table of Alloy Resistor Products
Lishengda Electronic Technology, a national high-tech enterprise, specializes in the R&D and manufacturing of precision, ultra-low-resistance current-sensing components. Its products are renowned for their high reliability, automotive-grade certification, and full domestic production. The following detailed table summarizes product specifications, application examples, and core competitive advantages.
| Category | Series | Function | Tolerance | Characteristics | Dimensions (Package) | Application Scenarios |
|---|---|---|---|---|---|---|
| Stamping and Plastic-Sealing Alloy (Metal Alloy Series) | LRA, LRB, LRH, LRLH, LJR | Precision current sensing for current measurement and overcurrent protection in circuits. | The standard tolerance is ±1% or ±5% (the documentation for automotive applications mentions “5% automotive-grade”; higher precision can be customized for certain products). | - The entire product series is AEC-Q200 automotive-grade certified. - Wide resistance range: 0–910 mΩ - Power range: 0.25 W ~ 7 W - Temperature Coefficient of Resistance (TCR): 25–100 ppm - High-scale production with high yield - All domestically sourced raw materials, with a stable supply chain | Package sizes: 0603, 1206, 2010, 2512, 4527, etc. (corresponding metric sizes: 2012–6432). | - Automotive Electronics: BMS (Battery Management System), T-BOX (Telematics), On-board Inverter, Electric Power Steering (EPS) - New Energy: Photovoltaic Inverters, Energy Storage Systems - Consumer Electronics: Power Management, Industrial Control |
| Ultra-thin semiconductor alloy (Thin Film Alloy) | LRNN, LRLN | High-frequency, high-precision current sensing, ideal for space-constrained applications. | Tolerance is typically ±1% (inferred from industry standards; not explicitly stated in the documentation). | - Ultra-thin design, with a thickness of ≤0.3 mm (2025 roadmap) - Resistance range: 0.2–120 mΩ - Power range: 0.5 W ~ 7 W - Temperature Coefficient of Resistance (TCR): 25–100 ppm - Semiconductor process, suitable for miniaturization applications | Package sizes: 0603, 1206 (metric 2012–3216), or 0508, 0612 (ultra-thin series). | - Automotive domain controllers, lighting modules - AI and Robotics: Servo Drives - Portable devices: power management for smartphones and tablets |
| Alloy Welding Process (Alloy Welder) | LRS, LRC, CRK, LRP | High-current shunt sensing, supporting high-power applications (e.g., 80 A to 400 A). | Tolerance is ±5% (the document’s automotive case mentions “5% automotive-grade”). | - High-power design: 3W~30W - Resistance range: 0.1–5 mΩ - Temperature Coefficient of Resistance (TCR): 15–100 ppm (lower temperature coefficient) - Welded structure with excellent heat dissipation - Through rigorous reliability testing, such as lightning surge testing and failure analysis | Package sizes: 1216, 2512, 3920, 5930, 8518, etc. (large packages) | - Automotive electric drive systems, DC-DC converters/OBC (on-board chargers) - Industrial motor drives: robots, elevators - Energy sector: wind power converters, charging stations |
Additional Note
Function Overview All alloy resistors are designed for current sensing, delivering precise resistance values to ensure circuit safety and efficiency. Lishengda products are renowned for “zero defects in electrical performance” and achieve high performance through proprietary formulations.
Tolerance Details : The documentation does not explicitly list all tolerances; however, automotive application cases indicate that tolerances are typically ±5%, with some precision series potentially reaching ±1%. Actual tolerances can be customized to meet customer requirements.
Core Features : All products comply with the automotive-grade AEC-Q200 standard and exhibit high reliability. In addition, the manufacturing process employs state-of-the-art equipment to ensure that they meet the requirements for “High-Acceleration Stress Testing” and “Solderability Testing”:
Dimensions and Power : Package sizes range from 0603 (small) to 8518 (large), with power rating increasing as package size grows. Refer to the package descriptions in the documentation for specific dimensions (e.g., 2512 corresponds to the 6432 metric size).
Application Scenario Expansion Based on partner case studies—such as BYD, SAIC, and EVE Energy—our products are widely used in the automotive, new-energy, and consumer-electronics sectors. With the advancement of AI and robotics, our offerings are evolving toward ultra-high precision and miniaturization.
Delivery and Customization Lishengda offers “4W lead times that outperform the market” and supports OEM/ODM customization to meet urgent order demands.
For the parameters provided above and for detailed, specific product applications, please contact Andy, Manager at LeaKin Technology, at 13714204032 or via email at andy@lea-kin.com. Thank you!
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High-Precision Alloy Current-Sensing Resistors & Shunts (Alloy Resistors)
Detailed Classification Table of High-Precision Alloy Current-Sensing Resistors and Shunts (Alloy Resistors) Contact: Andy, Tel: 13714204032; Email: andy@lea-kin.com.
Product Inquiry
LEAKIN International (Hong Kong) Co.,Limited
Contact：
Manager Liu
Fax：
+86 0755-2357 5852
R&D Base：
Unit 804-805, Building 1, COFCO Yunjing Plaza, Heshuikou Community, Matian Subdistrict, Guangming District, Shenzhen City
PCB Base：
Building C and D, Baishixia Industrial Zone, Jian'an Road, Fuhai Subdistrict, Bao'an District, Shenzhen City
Patch Base：
Building 12, 4th Floor, Sha’er Lantian Science and Technology Park, Ditang Road, Shajing Town, Bao’an District, Shenzhen City