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High-Precision Alloy Current Detection Resistors & Shunts
Product Description
Detailed Classification Table of Alloy Resistor Products
As a national high-tech enterprise, NCT Electronic Technology specializes in the R&D and manufacturing of precision micro-resistance current sensing components. Its products are renowned for their high reliability, automotive-grade certification, and complete domestic production. The detailed table below summarizes product specifications, application examples, and core advantages.
| Category | Series | Function | Tolerance | Features | Dimensions (package) | Application scenarios |
|---|---|---|---|---|---|---|
| Stamped plastic-sealed 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 document mentions “5% automotive-grade” for automotive applications; some products can be customized to achieve even higher precision). | - The entire series supports automotive-grade AEC-Q200 certification. - Wide resistance range: 0~910 mΩ - Power range: 0.25W to 7W - Temperature Coefficient of Resistance (TCR): 25–100 ppm - High-scale production with high yield rates - Purely domestically sourced raw materials, 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 inverters, Electric Power Steering (EPS) - New energy: photovoltaic inverters, energy storage systems - Consumer electronics: power management, industrial control |
| Semiconductor ultra-thin alloy (Thin Film Alloy) | LRNN, LRLN | High-frequency, high-precision current sensing, suitable for space-constrained applications. | The tolerance is typically ±1% (based on industry standards, as not explicitly stated in the document). | - Ultra-thin design, with a thickness of ≤0.3mm (2025 roadmap) - Resistance range: 0.2~120 mΩ - Power range: 0.5W ~ 7W - Temperature Coefficient of Resistance (TCR): 25–100 ppm - Semiconductor process, suitable for miniaturized applications | Package sizes: 0603, 1206 (metric 2012–3216), or 0508, 0612 (ultra-thin series) | - Automotive domain controller, headlight module - AI and Robotics: Servo Drives - Power management for portable devices: mobile phones and tablets |
| Alloy Welding Process (Alloy Welder) | LRS, LRC, CRK, LRP | High-current shunt detection, supporting high-power applications (such as 80A to 400A). | The tolerance is ±5% (the automotive case mentioned in the document refers to “5% automotive-grade”). | - High-power design: 3W~30W - Resistance range: 0.1–5 mΩ - Temperature Coefficient of Resistance (TCR): 15–100 ppm (lower temperature drift) - Welded structure with excellent heat dissipation - Through rigorous reliability testing, such as lightning surge and failure analysis. | Package sizes: 1216, 2512, 3920, 5930, 8518, etc. (large packages) | - Automotive electric drive systems, DC-DC/OBC (on-board charger) - Industrial motor drives: robots, elevators - Energy sector: wind power converters, charging stations |
Additional notes
Function Overview All alloy resistors are used for current sensing, providing precise resistance measurements to ensure circuit safety and efficiency. NCT products are renowned for their “zero defects in electrical characteristics” and achieve high performance through self-developed formulations.
Tolerance details The document does not explicitly list all tolerances; however, automotive application cases indicate that tolerances are typically around ±5%, with some precision series potentially reaching as low as ±1%. Actual tolerances can be customized according to customer requirements.
Core features The products all comply with the automotive-grade AEC-Q200 standard and feature high reliability. In addition, the production process utilizes advanced equipment to ensure that the products meet the requirements of “High-Acceleration Stress Testing” and “Solderability Testing.”
Size and Power The size range covers from 0603 (small) to 8518 (large), with power increasing as the package size grows. For specific dimensions, refer to the package descriptions in the documentation (e.g., 2512 corresponds to the 6432 metric designation).
Application scenario expansion Based on partner case studies in the document (such as BYD, SAIC, and EVE Energy), our products are widely used in automotive, new energy, and consumer electronics. As AI and robotics continue to advance, our products are undergoing iterative upgrades toward ultra-high precision and miniaturization (see the 2024-2026 roadmap).
Delivery and Customization NCT offers “4W lead times that outperform the market” and supports OEM/ODM customization to meet urgent order demands.
For the parameters and detailed, specific product scenarios mentioned above, please contact Mr. Huang at Lingkun Technology directly: 17704051972 (same number on WeChat); email: sales@lea-kin.com. Thank you!
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High-Precision Alloy Current Detection Resistors & Shunts
Detailed Classification Table of High-Precision Alloy Current Detection Resistors & Shunts
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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