What are the series of Viking alloy resistors?

Viking alloy resistors occupy an important position in the electronic components market due to their excellent performance and wide range of application scenarios. Its alloy resistor series has the core advantages of high precision, low temperature coefficient (TCR), and high reliability, and is widely used in fields such as current detection, power management, and automotive electronics. The following is an analysis of the core series and technical characteristics of Guangjie alloy resistors:
1、 Core series matrix
1. LR series: ultra-low resistance alloy resistor
Materials and Structure: Made of special alloy materials with high purity, high thermal conductivity, and high temperature resistance, integrated into a non cutting structure with almost no inductance value.
Key parameters:
Resistance range: 0.5m Ω~22m Ω
Accuracy: ± 1%, ± 2%, ± 5%
Temperature coefficient (TCR): ± 50ppm/℃
Rated power: up to 3W (1225 package)
Application scenarios:
High current detection: power supply, inverter/converter, battery pack, charger, adapter.
Overcurrent protection: audio equipment, voltage regulation module (VRM), DC-DC converter.
Automotive electronics: lithium battery protection board, automotive control system, motor drive.
2. LRS series: high current shunt chip resistor
Technical highlights: Designed specifically for power electronic systems, optimized for high current measurement scenarios, with high reliability and excellent performance.
Typical applications:
Power monitoring equipment, industrial motor drives, electric vehicle battery management systems (BMS).
3. LRP series: Milliohm level high-precision alloy resistors
Accuracy and stability: The resistance accuracy reaches ± 0.5%, and the TCR is as low as ± 100ppm/℃, making it suitable for high-precision current sampling.
Application scenarios:
Power system, automation equipment, scientific research instruments, precision medical equipment.
2、 Common technological advantages
Materials Science:
By using special alloy materials and combining thick film process technology, high purity, high thermal conductivity, and high temperature resistance are achieved.
Low TCR design (± 50ppm/℃~± 100ppm/℃) ensures stable resistance values within a wide temperature range of -55 ℃~+175 ℃.
Power and Structure:
High rated power (up to 3W) to meet the requirements of high current scenarios.
The integrated structure reduces parasitic inductance and improves high-frequency performance.
Customization capability:
Support deep customization of resistance, size, and power, such as automotive grade resistors that require AEC-Q200 certification.
Typical case:
Miniature resistor: 0201 size (0.4 × 0.2mm), suitable for wearable devices.
High power resistor: rated power of 3W, suitable for motor drive control.
3、 Application scenario analysis
Power management:
Used for current sampling and overcurrent protection in switch mode power supplies, DC-DC converters, and adapters.
Typical case: LR series resistors achieve efficient current detection in laptop power adapters.
Automotive Electronics:
Lithium battery protection board, motor controller, BMS system, withstand high temperature vibration environment.
Certification support: Some models have passed the AEC-Q200 automotive standard to ensure reliability.
Industrial control:
Accurate current monitoring and protection are achieved in motor driven and industrial automation equipment.
Advantage: The high-power characteristics of LR series resistors are suitable for high-frequency switching environments.
Consumer Electronics:
Used for current detection in battery management systems in smartphones and tablets.
Case: LR series resistors achieve efficient energy conversion in fast charging adapters.
4、 Selection Guide
High current detection: LR series (resistance range 0.5m Ω~22m Ω, maximum power of 3W) is preferred.
High precision scenario: LRP series (± 0.5% accuracy, ± 100ppm/℃ TCR) is suitable for scientific research instruments.
Vehicle grade requirement: Select models certified by AEC-Q200, such as the LR12 black package series.
Customization requirements: Provide in-depth customization services for resistance, size, and power to meet special scenario needs.
5、 Industry status and innovation drive
Guangjie alloy resistors have built a product matrix covering all scenarios through material science, process innovation, and rigorous quality control. Its dual advantages of technological depth and market breadth make Guangjie a core component supplier for high-end electronic devices, continuously leading industry innovation.