As a globally renowned chip resistor manufacturer, RALEC's automotive grade resistor products are known for their high reliability, strict certification, and diverse applications, and are widely used in the automotive electronics field. The following is a detailed introduction to the core characteristics, series classification, and technical advantages of its automotive resistors:
1、 Core Quality and Certification Standards
Strict vehicle level certification
Wangquan Automotive Standard Resistors have passed AECQ200 certification and comply with international standards such as ISO 9001 and IATF 16949, ensuring stable operation of the product in harsh environments such as high temperature, high humidity, and vibration.
Sulfur resistance and environmental performance
Using special materials and packaging processes to effectively resist corrosion in sulfurized environments, while complying with RoHS and REACH environmental directives, suitable for long-term reliability requirements of automotive electronics.
Temperature stability and durability
Low temperature drift characteristics (TCR as low as 15ppm/℃ or below) and wide temperature operating range (55 ℃ to+155 ℃) ensure stable resistance values at extreme temperatures, suitable for high-precision scenarios such as engine control and sensors.
2、 Main product series and features
Wangquan Automotive Standard Resistors have designed multiple series of products for different needs, covering thick film, thin film, alloy resistors and other types:
CR series (thick film chip resistors)
Features: Resistance to moisture and heat, wide temperature range (55 ℃~+155 ℃), strong power carrying capacity.
Applications: Automotive lighting, in car entertainment systems.
RL series (sulfur resistant resistor)
Features: Sulfur resistant packaging, high precision (± 0.1%), suitable for corrosive environments.
Application: Instrument panel, body control module.
LRE series (automotive grade alloy resistors)
Features: Compact design (such as 0805 package), low resistance (2m Ω~19m Ω), support for high current detection, in compliance with AECQ200 standard.
Application: Power management system, current detection circuit.
Wide electrode thick film resistor
Features: Low power consumption, high power tolerance (supporting high current loads), accuracy up to ± 0.5%.
Application: ECU, motor drive system.
RN series (low resistance resistor)
Features: Ultra low resistance, suitable for current detection and shunt, high stability.
Application: Battery Management System (BMS) for new energy vehicles.
3、 Technological advantages and innovation
Materials and processes
The alloy resistor adopts manganese copper or iron chromium aluminum alloy, combined with patented copper terminal technology, to improve thermal conductivity and reduce EMF interference.
Thick film resistors optimize heat dissipation and extend their service life through wide electrode design.
Miniaturization and high integration
The small package (0805) and resistor network design of LRE series save circuit board space and adapt to the trend of compact automotive electronics.
High power and high reliability
Some series support current loads up to 158A, and meet the stringent requirements of automotive safety systems (such as ABS, airbag control) through impact and aging resistance tests.
4、 Application Fields
Wangquan Automotive Standard Resistors widely cover the following automotive electronic scenarios:
Power system: Engine Control Unit (ECU), Transmission Module.
Safety system: ABS, ESP, airbag control module.
New energy vehicles: Battery Management System (BMS), Charging Module.
In car electronics: multimedia devices, air conditioning control system.
5、 Selection suggestions
When choosing a Wangquan car gauge resistor, comprehensive consideration should be given to:
Environmental conditions (temperature, humidity, sulfurization risk);
Technical parameters (resistance range, accuracy, power);
Certification requirements (AECQ200 is a mandatory vehicle specification).
Through its global production base and efficient supply chain (such as Chenxin Electronic Mall and Huanian Mall), users can quickly obtain product specifications and technical support.
Wangquan Automotive Gauge Resistors have become the preferred choice in the field of automotive electronics due to their high reliability, diversified product line, and innovative technology. Its products not only meet the needs of traditional fuel vehicles, but also demonstrate significant advantages in emerging fields such as new energy vehicles and intelligent driving, helping to promote the efficient and safe operation of automotive electronic systems.