Fenghua High tech's thin film resistor product line mainly includes three series, each of which has been specially optimized for different application scenarios, as follows:
1、 TH Series (Universal High Precision Thin Film Resistors)
Core features:
Ultra high precision: The mass production accuracy reaches ± 0.05% (one ten thousandth), which is the top level of domestic resistors.
Low temperature drift: With a temperature coefficient (TCR) as low as ± 5ppm/℃, it has extremely strong environmental adaptability.
Sulfur resistant design: Using special passivation materials, it can withstand sulfur-containing environments (such as cutting oil and industrial waste gas) for 1000 hours without damage.
Package size: covering the full size range of 0201 to 2512, suitable for miniaturization and conventional circuit design.
Typical applications: precision medical equipment (such as monitors), high-precision testing instruments, communication base stations, and industrial control systems.
2、 AT series (automotive grade thin-film resistors)
Certification and Reliability:
Through AEC-Q200 automotive electronics full certification, it meets harsh working conditions such as high temperature, high humidity, and vibration.
Corrosion resistant electrodes and sulfur resistant coatings effectively resist the corrosion of sulfur-containing gases in the engine compartment of automobiles.
Performance parameters:
Accuracy of ± 0.1%~± 1%, TCR of ± 25ppm/℃ or ± 50ppm/℃.
Full size support (0402~2512), compatible with reflow soldering and wave soldering processes.
Application scenarios:
New energy vehicle electronic control system (such as BMS battery management), on-board charger (OBC), ADAS sensors.
3、 TM Series (Wafer Resistors/Leadless Metal Film Resistors)
Structural innovation:
Leadless design: reduces parasitic inductance and improves high-frequency circuit stability.
High power density: 0603 package power can reach 0.5W, 0207 package power can reach 1W.
Comprehensive performance:
Accuracy ± 0.1%, TCR ± 10ppm/℃, long-term stability better than conventional thin film resistors.
Applicable fields:
High frequency communication modules (such as 5G RF circuits), aerospace electronic equipment, high-density power converters.
Technical Extension: Common Advantages of Fenghua Thin Film Resistors
Environmental reliability: The entire series has passed RoHS and halogen-free certification, with outstanding moisture and corrosion resistance.
Process consistency: Using independently developed electronic paste and ceramic powder materials to ensure stability in mass production.
Localization substitution: Breaking through the monopoly of overseas technology, especially achieving localization breakthroughs in the automotive grade (AT series) and ultra precision (TH series) fields.
Fenghua High tech has covered the full range of needs from consumer electronics to military aerospace through the layout of three series of thin film resistors. Its technical parameters have been benchmarked against international first-line brands, making it one of the core suppliers of domestic high-end resistors.