EVER OHMS's alloy resistor product line covers various application scenarios and technical requirements, and its series of products are subdivided according to materials, packaging forms, and functional characteristics. The following is a comprehensive analysis of its main alloy resistor series and technical characteristics:
1、 Pure metal plate alloy resistor (Metal Strip)
MA series
Features: Featuring ultra-low resistance (0.3m Ω~0.45 Ω) and high power (0.5W~7W), using materials such as manganese copper (MnCu) and iron chromium aluminum (FeCrAl), with an accuracy range of ± 0.5% to ± 5%.
Application: Suitable for industrial control, new energy power modules, and high-precision current detection, such as battery management systems (BMS) and inverter current sampling.
MAL series
Features: Resistance range of 0.5m Ω~0.25 Ω, power of 1W~5W, materials including MnCuSn and NiCrAl, suitable for medium to high power scenarios.
Application: Current feedback control for industrial frequency converters and servo drives.
MR series
Features: High cost-effectiveness, resistance of 1m Ω~50m Ω, power of 1W~5W, suitable for compact design.
Applications: Consumer electronics power management, drone charging circuits, etc.
MRE series
Features: Small volume packaging (0201 to 1206), power of 0.2W~1W, resistance of 1m Ω~50m Ω, specially designed for space limited equipment.
Application: Smartphone fast charging module, miniature sensor circuit.
MU series
Features: Ultra low resistance (0.3m Ω~2m Ω), power of 0.2W~1W, made of manganese copper material, suitable for high-frequency switching environment.
Application: High current sampling scenarios, such as electric vehicle motor drive systems.
2、 Metal foil alloy resistor
MFR series
Features: Made of manganese copper or copper alloy material, ultra-low parasitic inductance (<5nH), resistance of 1m Ω~560m Ω, power of 0.5W~5W, accuracy of ± 0.5%~± 2%.
Application: High frequency circuit, communication base station power management, reducing electromagnetic interference.
Variant: Four terminal design (four electrode pads), used for high-precision current measurement, eliminating the influence of wiring resistance.
3、 Bare copper metal shunt
SR series
Features: Resistance of 0.2m Ω~5m Ω, power of 2W~15W, made of materials such as MnCuSn, suitable for high current shunt detection.
Application: High load circuits for new energy vehicle charging stations and industrial power management.
SRF series
Features: Four terminal design, resistance of 0.2m Ω~3m Ω, power of 4W~7W, enhanced heat dissipation and anti vibration performance.
Application: Current monitoring for automotive power systems and energy storage devices.
4、 Technological advantages and market competitiveness
Materials and processes: Special alloys (such as manganese copper, iron chromium aluminum) and vacuum sputtering technology are used to enhance high temperature resistance (55 ℃~+170 ℃) and sulfur resistance.
Environmental certification: Compliant with RoHS and AECQ200 automotive standards to meet the electronic needs of automobiles.
Customized service: Support adjusting packaging, resistance, and power parameters according to customer needs.
5、 Typical application areas
Automotive electronics: MA series is used for BMS current detection, SR series is used for power system shunt.
Industrial automation: MFR series is used for frequency converter current feedback, and SRF series is used for high-precision industrial control.
Consumer Electronics: MRE series is compatible with mobile fast charging modules, and MR series is used for drone power management.
Tian'er Technology's alloy resistor series focuses on high power, low resistance, and high reliability, covering diverse needs from ultra-low resistance (0.3m Ω) to medium to high resistance. Its products have demonstrated significant technological competitiveness in the automotive, industrial, and consumer electronics fields through material innovation and process optimization. If you need complete parameters or customized solutions, you can refer to official materials or agent selection guides.