The following is a comprehensive introduction to RALEC metal film resistors, based on their technical characteristics, product line, and application scenarios:
1、 Brand background and core technology
RALEC was founded in 1994 and is a professional resistor manufacturer under Taiwan's Chi Li Xin Group. It focuses on the research and production of chip resistors, resistor networks, and metal plate current detection resistors. The company has production bases in Taiwan, China, Kunshan, Hunan Yuanling and Malaysia, and has passed ISO 9001, IATF 16949 and other international certifications. Its products meet RoHS standards and are widely used in automotive electronics, communication equipment, industrial control and other fields.
2、 Technical characteristics of metal film resistors
Wangquan's metal film resistors belong to its thin film chip resistor product line, manufactured using advanced thin film technology and possessing the following core advantages:
High precision and stability
The resistance accuracy can reach ± 0.1%, suitable for high-precision circuit requirements.
Low temperature drift coefficient (TCR): The temperature coefficient is as low as ± 15ppm/℃, ensuring stable resistance over a wide temperature range.
Low resistance range
Suitable for low resistance (such as milliohm level) scenarios, such as current detection and shunt applications.
Miniaturization packaging
Provide micro packages such as 0201, 0402, 0603, etc. to adapt to the trend of miniaturization of electronic products.
High reliability
Adopting patented copper terminal technology to enhance thermal conductivity and reduce EMF interference, supporting high current (>158A) and high power density applications.
3、 Product series and typical models
Wangquan's metal film resistors cover multiple types, including:
Low resistance metal film resistor
For example: 0.033 Ω± 1% (packaged in 1210), used for high-precision current detection.
Vehicle grade resistor
Compliant with AECQ200 standards, such as LRS series four terminal alloy resistors, used for automotive sensors and controllers.
The 1W resistor packaged in 2512 (with a resistance range of 1 Ω and 300 Ω) is suitable for power management and industrial equipment.
Typical model example:
RTT021R0JTH: 1 Ω± 5%, packaged in 0402, with a unit price as low as 0.00222 yuan.
RTT12R033FTP: 0.033 Ω± 1%, 1210 package, unit price 0.099 yuan.
4、 Application Fields
Wangquan metal film resistors are widely used in the following scenarios due to their high precision and reliability:
Automotive electronics: Engine Control Unit (ECU), Battery Management System (BMS).
Communication equipment: signal processing and power management in 5G base stations and routers.
Industrial automation: current detection and feedback control in PLC and frequency converter.
Consumer electronics: Circuit protection and power distribution for smartphones and laptops.
5、 Competitive advantage
One stop solution: a full process service from research and development to technical support.
Quick response and delivery: The global supply chain system supports efficient production and logistics.
Environmental Protection and Compliance: The entire product line complies with RoHS and lead-free standards, meeting the requirements of green manufacturing.
If specific model selection or parameter comparison is needed, further screening can be conducted based on circuit requirements such as resistance, power, and packaging. Wangquan's product catalog can be accessed through its official website or authorized agents.