Introduction to Viking Metal Film Resistors Series and Its Advantages

Viking metal film resistors are widely used in high-end fields such as automotive electronics, industrial control, and communication equipment due to their high precision, low temperature drift, high reliability, and customization capabilities. The following is an analysis of the core series and technical characteristics of its metal film resistors:
1、 Core series matrix
1. CSRV series: Metal thin film precision MELF resistor
Certification and Size: Compliant with AEC-Q200 automotive standard, available in three sizes: 0102/0204/0207, suitable for high-density PCB layout.
Accuracy and temperature drift: The resistance accuracy reaches ± 0.1%, the temperature coefficient (TCR) is as low as ± 5ppm/℃, and the resistance range is 0.1 Ω~3.4 Ω.
Application scenarios: automotive electronics (BMS battery management system), industrial control (precision current detection).
2. CSRF series: Metal thin film high-frequency MELF resistor
High frequency performance: dimensions 0102/0204/0207, 1% accuracy, TCR ± 50ppm, resistance range 1.5 Ω~220 Ω.
Technical advantage: Using low dielectric constant ceramic substrate, insertion loss is less than 0.3dB in the 5GHz frequency band.
Application scenarios: 5G communication modules, radar systems, satellite communication equipment.
3. High voltage MELF metal film precision resistor
Voltage resistance: Dimensions 0207/0309, 1% accuracy, TCR ± 100/200ppm, resistance range 1K Ω~100M Ω.
Extreme parameters: Maximum overload voltage of 2500V, capacity decay<3% after 5000 hours of operation in 85 ℃/85% RH environment.
Application scenarios: power monitoring equipment, ESD electrostatic protection module.
4. Universal metal film resistor
Process and accuracy: Using vacuum sputtering deposition technology, the film thickness uniformity is within ± 2%, with an accuracy of ± 1% and TCR<± 50ppm.
Packaging form: Provides plug-in and patch (such as 0805, 1206 packaging), suitable for home appliances, communication equipment and other scenarios.
Typical applications: power adapters, routers, industrial instruments.
5. Customized series
Flexible parameters: Supports deep customization of resistance, size, and voltage, such as automotive grade resistors that require AEC-Q200 certification.
case
Miniature resistor: 01005 size (0.4 × 0.2mm), suitable for wearable devices.
High power resistor: rated power of 3W, suitable for motor drive control.
2、 Common technological advantages
Materials and processes:
The resistive film is made of nickel chromium (NiCr) alloy and deposited on a ceramic substrate through vacuum evaporation or sputtering processes to ensure high precision and low temperature drift.
Laser tuning technology achieves resistance fine-tuning with an accuracy of ± 0.01%.
Reliability testing:
All series have passed a 2000 hour high temperature and high humidity bias test (HTRB), simulating a 10-year service life.
Anti sulfurization design (such as RAM series), suitable for harsh industrial environments.
Environmental adaptability:
The working temperature range is -55 ℃~+175 ℃, and some series can withstand short-term overload (such as 2500V voltage surge).
3、 Selection Guide
Precision scenarios: Priority should be given to CSRV series (± 0.1% accuracy) or PR series thin film resistors (± 0.01% accuracy).
High frequency applications: CSRF series (low loss in 5GHz frequency band) is suitable for RF circuits.
High voltage environment: High voltage MELF series (withstand voltage 2500V+) is preferred.
Customization requirements: Provide in-depth customization services for resistance, size, and voltage to meet special scenario needs.
4、 Industry status and innovation drive
Guangjie Metal Film 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 enable it to continue leading innovation in the resistance industry and become a core component supplier for high-end electronic devices.