Viking thin film resistors are widely used in high-end fields such as precision instruments, medical equipment, communication modules, etc. due to their high precision, low temperature drift, and excellent stability. The following is an analysis of the main series and characteristics of its thin film resistors:
1. TR series: Universal thin film resistor
Accuracy and stability: The resistance accuracy can reach ± 0.1%~± 1%, and the temperature coefficient (TCR) is as low as ± 25ppm/℃, suitable for most industrial and consumer electronics scenarios.
Power range: covering 0.05W to 0.5W, meeting the needs of portable devices to small power modules.
Application scenarios: smartphones, power adapters, household appliances, etc.
2. PR series: high-precision thin film resistors
Ultra low temperature coefficient: TCR can be optimized to ± 15ppm/℃, resistance accuracy ± 0.01%, ensuring stability in extreme environments.
Material characteristics: Using nickel chromium (NiCr) alloy thin film, combined with laser tuning technology, to achieve ultra precision resistance matching.
Application scenarios: medical equipment (such as blood analyzers), testing instruments, analog signal processing circuits.
3. HR Series: High Voltage Thin Film Resistors
Voltage resistance performance: The rated voltage can reach 10kV or above, suitable for high-voltage monitoring and protection scenarios.
Structural advantages: By using multi-layer ceramic substrates and special packaging processes, the insulation performance and mechanical strength are enhanced.
Application scenarios: power monitoring equipment, ESD electrostatic protection module, high-voltage power supply design.
4. LR series: low resistance film resistor
Ultra low resistance range: covering 0.1 Ω~10 Ω, accuracy ± 1%~± 5%, TCR ± 50ppm/℃.
Material innovation: Using manganese copper (CuMn) alloy thin film to optimize current sampling accuracy.
Application scenarios: power module current detection, motor drive control, BMS battery management system.
5. FR series: High frequency thin film resistors
High frequency characteristics: Insertion loss<0.3dB in the 5GHz frequency band, suitable for RF and microwave circuits.
Material optimization: Use low dielectric constant ceramic substrates to reduce signal loss.
Application scenarios: 5G communication modules, radar systems, satellite communication equipment.
6. CR Series: Customized Thin Film Resistors
Flexible parameters: Support deep customization of resistance, size, and voltage to meet special scenario requirements.
Typical case:
Vehicle grade resistor: certified by AEC-Q200, capable of withstanding temperature surges ranging from -55 ℃ to+175 ℃, suitable for use in BMS systems for new energy vehicles.
Miniature resistor: 01005 size (0.4 × 0.2mm), suitable for wearable devices and high-density PCB layouts.
Common technological advantages
Thin film process: Using vacuum sputtering deposition technology, the thickness uniformity of the thin film is within ± 2%, ensuring consistent resistance.
Reliability testing: All series have passed the 2000 hour High Temperature and High Humidity Bias Test (HTRB), with a capacity decay of<3% after 5000 hours of operation in an 85 ℃/85% RH environment.
Environmental certification: Compliant with RoHS, REACH and other environmental standards, lead-free production.
Selection suggestions
Precision scenarios: Prioritize PR series (± 0.01% accuracy) or TR series (± 0.1% accuracy).
High voltage environment: HR series (withstand voltage 10kV+) is preferred.
High frequency applications: FR series (low loss in 5GHz frequency band) is suitable for RF circuits.
Customization requirements: CR series provides in-depth customization services for resistance, size, and voltage.
Guangjie thin film resistors have built a product matrix covering all scenarios through material science, process innovation, and strict quality control, meeting diverse needs from general to extreme.