Fenghua Resistor Series: Complete Product Analysis

I. Brand Introduction

Guangdong Fenghua Advanced Technology Holding Co., Ltd. (Fenghua High-Tech, Stock Code: 000636) was established in 1984 and listed on the Shenzhen Stock Exchange in 1996. Headquartered in Zhaoqing, Guangdong, the company has been深耕 the electronic components industry for over 40 years, growing into one of China's largest and most comprehensive R&D, manufacturing, and export bases for new electronic components and information infrastructure products.

Fenghua's chip resistors are one of the company's three main product lines. In 2021, the product was recognized as a National Manufacturing Single Champion Product and successfully passed the review in 2025. The company has built a "Thick Film-Alloy-Thin Film" three-in-one core technology platform, with a product portfolio covering everything from general-purpose to automotive-grade, consumer to industrial, and standard resistance to ultra-low resistance values.

Looking ahead, Fenghua plans to invest RMB 433 million in a high-end chip resistor project, adding 10 billion units of monthly production capacity, with a strategic focus on alloy resistors and automotive-grade high-end resistor markets.

II. Product Series Overview

Fenghua resistor products cover thick film resistors, thin film resistors, alloy resistors, thick film network resistors, thermistors, varistors, carbon film resistors, custom resistors, and other products. Detailed analysis of each major series follows.

III. Major Series Detailed Analysis

(A) RS Series – Standard Thick Film Chip Resistors

Product Code: RS-XX XXXX XT/FT (e.g., RS-05K102JT, RS-03K7504FT)

Characteristics: The RS series is Fenghua's most basic standard thick film chip resistor. Features small size, light weight, compatibility with reflow and wave soldering. Stable electrical performance, high reliability, high mechanical strength, superior high-frequency characteristics, RoHS and halogen-free compliant. Package sizes from 01005 to 2512, resistance range 1Ω to 10MΩ, tolerances ±0.5%, ±1%, ±5%, TCR as low as ±50ppm/℃.

Applications: Widely used in consumer electronics, home appliances, communication equipment, power supply circuits, and other general electronic applications.

Advantages: As the most standard chip resistor, the RS series offers excellent cost-performance ratio and batch consistency, suitable for high-volume SMT assembly, significantly reducing production and time costs.

Market Position: General-purpose, entry-level market. One of the most commonly used components in electronics, targeting high-volume applications such as consumer electronics and home appliances.

(B) RC Series – High-Reliability Thick Film Chip Resistors

Product Code: RC-XX XXXX XT/FT (e.g., RC-02W3320FT, RC-01U6044FT)

Characteristics: Shares the thick film platform with RS series but offers superior reliability and environmental adaptability. Package sizes from 0201 to 2512, supporting more miniaturized designs.

Applications: Suitable for electronic devices requiring higher reliability and miniaturization, including wearable devices, portable terminals, and communication modules.

Market Position: Mid-to-high-end general-purpose market, offering enhanced reliability and environmental adaptability over the RS series.

(C) RP Series – High-Power Thick Film Chip Resistors

Product Code: RP series (models starting with RP)

Characteristics: Utilizes high-power specialized materials and processes. Power rating up to 2W, superior surge and high-current tolerance. Stable electrical performance, high reliability, high mechanical strength, superior high-frequency characteristics.

Applications: Switching power supplies, overcurrent protection for audio equipment, voltage regulators, power converters, chargers, automotive engine controllers, portable devices.

Market Position: Power application market, targeting power management, industrial control, and other high-power handling scenarios.

(D) Thin Film Resistor Series (T/TB/AT/TH Series)

Product Code: T series, TB series, AT series, TH series

Characteristics: Low-TCR, high-precision precision resistors. AT series for automotive precision applications, TH series for general-purpose use, TM series leadless metal film resistors (cylindrical resistors) also belong to this category. Package sizes from 0201 to 2512, precision up to ±0.01%, TCR as low as ±25ppm/℃. TB series meets high-precision metering, signal conditioning, and power management requirements.

Applications: Instrumentation metering, audio tuning, power sampling, smart metering, signal conditioning.

Market Position: High-end precision application market, targeting instrumentation, medical equipment, high-end audio, precision power supplies, and other ultra-high-precision applications.

(E) Alloy Resistor Series

Fenghua offers a comprehensive alloy resistor product line with multiple sub-series, representing a strategic growth area.

1. MI Series – Ultra-Thin Alloy Resistors

Product Code: MIJxxKxxxxFT (e.g., MIJ06KR005FT)

Characteristics: Ultra-thin alloy resistors with thickness and volume reduced by approximately 50%. Supports 0402, 0603 miniature packages, resistance as low as 0.5mΩ. Power up to 1W, TCR as low as ±50ppm/℃. RoHS and halogen-free compliant.

Applications: High-integration motherboards, graphics cards, high-end communication equipment, current sensing in power circuits.

Market Position: High-end consumer and communication equipment market, targeting AI servers, GPU power delivery, and other compute-intensive scenarios.

2. MF Series – General-Purpose High-Performance Alloy Resistors

Product Code: MF series (wide terminal alloy resistors)

Characteristics: Metal foil process technology, low resistance and high reliability. Full package range from 0402 to 2512, power up to 2W, TCR as low as ±50ppm/℃. Wide terminal design provides larger solder pads, higher current capacity, and better heat dissipation.

Applications: Power management, battery protection, automotive electronics, current sensing.

Market Position: General-purpose high-performance market, targeting industrial power supplies, automotive electronics, battery protection, and other broad applications.

3. AMF/AMG/AMS Series – Automotive-Grade Alloy Resistors

Product Code: AMF series, AMG series, AMS series

Characteristics: Fully compliant with AEC-Q200 standards, passing高温高湿 (dual 85), thermal shock, mechanical vibration, flame retardancy, and other full automotive-grade reliability tests, ensuring stable operation from -55℃ to 170℃.

• AMF Series (Metal Foil) : 0402 to 2512 packages, power 1/4～2W, resistance 0.5～200mΩ, TCR ±25～±200ppm/℃, precision ±0.5%

• AMF Wide Terminal Series: Power 1～3W, enhanced heat dissipation and mechanical shock resistance, suitable for engine compartments and transmission control

• AMG Series (Metal Plate) : Power 2～5W, resistance as low as 0.5mΩ, ultra-low parasitic inductance, excellent high-current pulse tolerance

• AMS Series (Shunt) : Power 3～15W, resistance 0.2～5mΩ, for commercial EVs, charging piles, high-end AI server power supplies

Applications: New energy vehicle BMS current sampling, motor drive controllers (MCU), onboard chargers (OBC), DC-DC converters.

Market Position: High-end automotive market, targeting new energy vehicles, AI servers, charging infrastructure, and other strategic emerging industries.

(F) Automotive-Grade Resistor Series

Fenghua's automotive-grade resistor products cover thick film, alloy, and thin film technology platforms, with high-power, anti-surge, ultra-low resistance, and other specialized automotive resistor products.

1. AS Series – Automotive High-Precision Thick Film Resistors

Product Code: AS series

Characteristics: Fenghua is the first domestic manufacturer to launch the AS series automotive high-precision thick film chip resistors. TCR precisely controlled at ±25ppm/℃, precision stable at ±0.1%, resistance change rate within ±0.2%R after 1000 hours of dual-85 testing. Proprietary anti-sulfurization patent technology, sulfurization resistance up to 1000 hours, simultaneously solving silver migration issues. Strictly compliant with AEC-Q200 automotive-grade reliability certification.

Applications: New energy vehicle BMS voltage sampling, OBC, drive controllers; data center server power bus voltage detection; photovoltaic inverter MPPT, wind power converters; industrial automation PLC modules, inverters; medical equipment CT scanners, X-ray machine high-voltage generators.

Market Position: High-end automotive and industrial market, targeting 800V high-voltage platforms, data centers, photovoltaic energy storage, and other strategic sectors.

2. AV Series – Automotive High-Voltage Thick Film Resistors

Product Code: AV series

Characteristics: Sets a new benchmark with 3000V极限耐压, specifically designed for high-voltage scenarios.

Applications: Wind power converters, photovoltaic inverters, new energy vehicle BMS, automotive radar, autonomous driving modules.

3. AB/AD/AH/ACC/ABD Series – Automotive Thick Film Fixed Resistors

Product Code: AB series, AD series, AH series, ACC series, ABD series

Characteristics: Strictly compliant with automotive electronics' demanding reliability, stability, and environmental adaptability requirements. High-precision laser trimming technology, with high humidity resistance, long operating life, anti-sulfurization, and high power capabilities, stable under high temperature, high humidity, and strong vibration. ACC02K series features 0402 ultra-miniature package, ±100ppm/℃ low-TCR, and AEC-Q200 certification. ABD03K series offers 0603 package with 1/10W power and ±100ppm/℃ low-TCR.

Applications: Body control, infotainment, navigation systems, power management, signal conditioning.

(G) Anti-Sulfurization Resistor Series (RH/RHM Series)

Product Code: RH series, RHM series

Characteristics: Fenghua's anti-sulfurization resistor R&D began in 2000 and has evolved to the fifth generation, with anti-sulfurization performance at internationally leading levels. High-quality internal electrode and protective materials, combined with unique anti-sulfurization technology, providing nearly 10 times better anti-sulfurization capability than standard products. RHM series offers anti-sulfurization thick film network resistors.

Applications: Communication base stations, air conditioners, automotive electronics, photovoltaic inverters, and other high-pollution, high-humidity, high-temperature-variation harsh environments.

Market Position: Harsh environment application market, targeting industrial, communications, automotive, and other ultra-high-reliability applications.

(H) Thick Film Network Resistors/Arrays (RC-M Series)

Product Code: RC-ML08WxxxJT, A-type through-hole arrays, etc.

Characteristics: Integrates multiple resistors in a single package, saving PCB layout space and enabling cross-series and parallel configurations. Packages include 0402, 0603, 1206, and other standard sizes. Tolerances ±5%, ±1%.

Applications: Storage devices, computers, network servers, digital circuits.

Market Position: Digital circuit and interface circuit market, targeting computers, network equipment, and other multi-resistor matching applications.

(I) Varistor Series

Product Code: FPV series (SMD), FNR series (through-hole)

Characteristics: Covers standard energy series, high-energy series, automotive series, over-temperature self-protection TMOV series, explosion-proof series, over-voltage self-protection GMOV series, SPD lightning protection, and other full series. SMD varistors divided into general-purpose, high-surge, and high-speed (low-capacitance) types. Wide voltage range, strong temperature adaptability, excellent lightning protection performance.

Applications: New energy vehicles, energy storage, charging piles, consumer power supplies, small appliances, networking, lighting, IC surge voltage protection.

(J) Thermistor Series

Product Code: NTC series (CMKA, etc.), PTC series (MZ series)

Characteristics: Fenghua has深耕 NTC thermistor products for over 20 years. NTC products include high-power D25/D30 series, miniaturized power NTC series, featuring low residual resistance and low power consumption. PTC products include current-limiting and time-delay start types.

Applications: High-power switching power supplies, charging piles, power circuit inrush protection, home appliances, new energy, industrial control.

(K) RT Series – Ultra-Low Resistance Resistors

Product Code: RT series

Characteristics: Uses copper-nickel alloy paste, eliminating silver and palladium precious metals, achieving lead-free design. Driving ultra-low resistance chip resistors toward "lead-free, low-TCR, high-reliability".

Market Position: Cost-sensitive ultra-low resistance market, targeting power management, current sensing, and other high-volume applications.

IV. Selection Guide

V. Recommended Supplier

Shenzhen Shunhai Technology Co., Ltd. – Professional distributor of Fenghua resistors and other electronic components, providing full-series product selection support, sample applications, and volume supply services for Fenghua resistor products.

VI. Summary

Fenghua resistor product lines cover thick film, thin film, alloy, automotive-grade, anti-sulfurization, network, varistor, thermistor, and other full categories. From 01005 miniature packages to 2512 high-power packages, from milliohm ultra-low resistance to GΩ ultra-high resistance, from consumer electronics to AEC-Q200 automotive-grade certification, Fenghua has built a complete "Thick Film-Alloy-Thin Film" three-in-one technology platform. As a National Manufacturing Single Champion product, Fenghua resistors leverage over 40 years of technological accumulation and continuous innovation, establishing themselves as one of China's largest and most comprehensive resistor suppliers, playing a critical role in domestic substitution and high-end transformation.