Viking Resistor (Viking Tech) Complete Product Series Analysis

I. Brand Introduction

Viking Tech Corporation was founded in October 1997 and is headquartered in the Hsinchu Science Park, Taiwan. The company went public in 2011. Viking Tech is Taiwan's first professional manufacturer integrating thin-film and thick-film process technologies for high-frequency passive components, with over 25 years of manufacturing experience in thin-film precision resistors, current sensing resistors, ceramic chip inductors, power inductors, and MELF thin-film resistors.

Viking Tech's core competency lies in its unique combination of thin-film process precision and thick-film process cost advantages, enabling the production of resistors with accuracy up to ±0.01% and TCR as low as 1ppm/℃—a capability possessed by only a handful of companies globally. The company holds IATF16949, ISO13485, and other automotive and medical industry certifications, with products compliant with AEC-Q200 standards.

In 2017, Viking Tech was acquired by Fenghua Advanced Technology, a leading Chinese passive component manufacturer, becoming its high-end resistor brand and further expanding its global market presence. Viking Tech currently holds approximately 6.84% of the global passive component resistor market, ranking among the industry leaders.

II. Major Viking Resistor Series

Viking's resistor product line encompasses thin-film precision resistors, thick-film resistors, high-value resistors, high-voltage resistors, micro-resistors, metal film precision resistors, power resistors, automotive-grade resistors, anti-sulfur precision resistors, ultra-low resistance alloy resistors, resistor arrays, and other specialty resistors.

(I) AR Series – Thin Film Precision Chip Resistor

Part Number: AR01 (0201), AR02 (0402), AR03 (0603), AR05 (0805), AR06 (1206), AR13 (1210), AR10 (2010), AR12 (2512)

Features: The AR series represents Viking's high-precision, low-TCR SMD thin-film resistors, manufactured using vacuum evaporation and sputtering techniques on alumina substrates with photolithography for precise resistance trimming. Tolerance down to ±0.01%, TCR as low as 1ppm/℃, resistance range from 1Ω to 3MΩ, and sizes from 0201 to 2512.

Applications: Precision instruments, measurement equipment, wired and wireless communication network equipment; medical instruments and automotive control boards.

Advantages: World-class precision (±0.01%) and extremely low temperature coefficient (1ppm/℃) ensure exceptional resistance stability across wide temperature ranges. Custom specifications available upon request.

Market Positioning: High-end precision resistor market, competing with top international brands—the first choice for precision measurement, medical electronics, and automotive electronics requiring ultimate accuracy and stability.

(II) ARG Series – Industrial Grade Thin Film Precision Resistor

Part Number: Full size range from 0201 to 2512

Features: The ARG series represents industrial-grade thin-film resistors, manufactured on large substrates with lower production costs, offering excellent cost-performance ratio.

Applications: General precision circuit design, industrial control equipment.

Advantages: Delivers thin-film precision at a more economical cost—a cost-effective alternative to the AR series.

Market Positioning: Mid-to-high-end precision resistor market, balancing performance and cost for industrial applications with budget considerations.

(III) AR..A Series – Automotive Grade Thin Film Precision Resistor

Part Number: Full size range from 0201 to 2512, with "A" suffix

Features: AEC-Q200 compliant, with specialized materials, design, and processing optimized for high-sulfur environments, validated through humidity and sulfide immunity testing.

Applications: Automotive electronic control systems, BMS, ADAS, ECU, charging stations.

Advantages: Automotive-grade certification ensures long-term reliability in harsh automotive environments while maintaining thin-film precision.

Market Positioning: Automotive electronics high-end precision resistor market, serving the growing demands of new energy and intelligent vehicles.

(IV) ARN Series – Aluminum Nitride Thin Film Precision Resistor

Part Number: ARN03 (0603), ARN05 (0805), ARN06 (1206), ARN12 (2512)

Features: Designed on high thermal conductivity aluminum nitride substrates with enlarged backside terminations to reduce thermal resistance, with power rating up to 6.0W (2512 package). Resistance range 50Ω~30.1KΩ, tolerance ±0.1%, TCR ±25ppm/℃.

Applications: Power supplies, power switching equipment.

Advantages: The high thermal conductivity of aluminum nitride substrates enables significantly higher power handling in the same footprint, effectively addressing heat dissipation challenges in high-power-density designs.

Market Positioning: High-power-density precision resistor market, targeting power supply design and power conversion applications with specialized thermal requirements.

(V) ARP Series – High Power Thin Film Chip Resistor

Part Number: ARP06 (1206)

Features: Wider bottom terminal design (short side terminal) enables significantly higher power capability than existing same-size resistors. 1206 package delivers 1.0W, resistance range 10Ω~100KΩ, AEC-Q200 compliant, with anti-sulfur verification per ASTM B 809.

Applications: Power-related devices, DC motors, inverters, robotics, industrial control systems.

Advantages: Higher power density in standard package sizes, effectively saving PCB layout space.

Market Positioning: High-power-density thin-film resistor market for industrial automation and power management applications.

(VI) ARF Series – High Frequency Thin Film Resistor

Part Number: 0201, 0402, 0603, etc.

Features: Thin-film resistors specifically designed for high-frequency applications, with 0201 size supporting up to 70GHz, and 0402 and 0603 supporting 50GHz respectively. Minimum size 0201 (0.58mm × 0.30mm) suitable for high-density integration and high-frequency front-end design.

Applications: Millimeter-wave communications, high-frequency front-end modules, 5G communication equipment.

Advantages: Exceptional high-frequency performance maintaining excellent characteristics in microwave and millimeter-wave bands.

Market Positioning: High-frequency communication resistor market for 5G, radar, satellite communications, and other high-frequency applications.

(VII) CS Series – Current Sensing Thick Film Chip Resistor

Part Number: CS01 (0201) through CS75 (7520), covering 0201, 0402, 0603, 0805, 1206, 1210, 2010, 2512, 1225, 3720, 7520, 0612

Features: Thick-film current sensing resistors with low TCR of ±100ppm/℃, tight tolerance of 1%, resistance range 1mΩ~1Ω. 1225 package delivers up to 3W, with long terminations enhancing power capability.

Applications: Power management, switching power supplies, audio over-current protection, VRM, DC-DC converters, battery packs, chargers, adapters, disk drives.

Advantages: Wide resistance coverage (1mΩ~1Ω), multiple package options, and cost advantages from thick-film processing.

Market Positioning: Mid-to-high-end current sensing resistor market, balancing performance and cost—ideal for large-scale industrial applications.

(VIII) CS..A Series – Automotive Grade Current Sensing Chip Resistor

Part Number: Full size range from 0402 to 7520, with "A" suffix

Features: AEC-Q200 qualified with highly reliable multilayer electrode construction. 1225 package delivers 3W in a 1W footprint, low TCR of ±100ppm/℃, resistance range 1mΩ~1Ω. Long side terminations enhance power rating, with special construction preventing sulfuration.

Applications: Automotive BMS, motor drives, vehicle stability control, and other automotive electronic systems.

Advantages: Automotive-grade reliability combined with current sensing expertise, maintaining stability in high-temperature and high-vibration automotive environments.

Market Positioning: Automotive electronics current sensing market for new energy and traditional vehicle applications requiring high reliability.

(IX) CSM Series – Current Sensing Metal Chip Resistor

Part Number: Covers 0402, 0603, 0805, 1206, 2010, 2512

Features: Metal chip current sensing resistors using metal alloy materials for superior temperature coefficient performance and power handling.

Applications: High-precision current sensing scenarios such as power management and battery protection.

Advantages: Metal materials provide lower TCR for more stable resistance across temperature variations.

Market Positioning: High-end current sensing market for precision current measurement applications demanding superior temperature stability.

(X) LR Series – Alloy Ultra-Low Resistance Resistor

Part Number: LR series, multiple package sizes

Features: High-purity, high-thermal-conductivity, high-temperature-resistant special alloy materials with one-piece molded construction featuring virtually zero inductance. Resistance range 0.5mΩ~22mΩ, tolerance ±1%/±2%/±5%, TCR ±50ppm/℃, maximum power 3W (1225 package).

Applications: High-current sensing (power supplies, inverters, battery packs, chargers, adapters), over-current protection (audio equipment, VRM, DC-DC converters), automotive electronics (battery protection boards, motor drives).

Advantages: Extremely low resistance (milliohm level), one-piece molded construction with no inductance, high power density—ideal for high-current sensing.

Market Positioning: High-end high-current sensing market for power supplies, automotive electronics, and industrial power applications.

(XI) LRP Series – Milliohm High-Precision Alloy Resistor

Part Number: LRP series

Features: Resistance accuracy up to ±0.5%, TCR as low as ±100ppm/℃.

Applications: Power systems, automation equipment, research instruments, precision medical devices.

Advantages: High precision and high stability at milliohm-level resistance values.

Market Positioning: High-precision current sensing market for research and precision medical applications with stringent accuracy requirements.

(XII) LRS Series – High-Current Shunt Chip Resistor

Part Number: LRS series

Features: Specifically designed for power electronics systems, optimized for high-current measurement scenarios with high reliability.

Applications: Power monitoring equipment, industrial motor drives, electric vehicle BMS.

Advantages: Professionally optimized design for high-current shunt applications.

Market Positioning: Power electronics current sensing market for industrial and electric vehicle high-current measurement applications.

(XIII) PWR Series – Pulse Withstanding Chip Resistor

Part Number: Covers 0402, 0603, 0805, 1206, 1210, 2010, 2512

Features: Excellent pulse withstanding performance, effectively resisting transients from inrush current, lightning induction, or load switching. Tolerance ±0.5%~±5%, high power rating, improved working voltage ratings. AEC-Q200 compliant, MSL Level 1 moisture sensitivity.

Applications: Testing/measurement equipment, diagnostic equipment, medical devices, industrial controls, plasma equipment, LCD video monitors.

Advantages: Specifically designed to withstand high-energy, long-duration pulse overloads—fundamentally different from standard resistors in pulse tolerance capability.

Market Positioning: Professional pulse-withstanding resistor market for industrial, medical, and power applications with frequent transient overload conditions.

(XIV) SWR Series – Surge Withstanding Chip Resistor

Part Number: Covers standard packages from 0402 to 2512

Features: Surge and pulse withstanding high-power SMD resistors with tolerance ±5%/±10%/±20%, resistance range 1Ω~20MΩ, maximum power 1.5W. Superior surge and pulse characteristics compared to PWR series, though with lower precision.

Applications: Transient high-voltage scenarios such as power protection and motor control.

Advantages: Stronger surge withstanding capability for applications with extreme pulse tolerance requirements where precision is less critical.

Market Positioning: Surge-withstanding resistor market, complementing PWR series—PWR for high-precision pulse withstanding, SWR for extreme surge withstanding.

(XV) AS Series – Anti-Sulfur Resistor

Part Number: Full size range from 0201 to 2512

Features: High anti-sulfur inner electrode materials with specially designed termination structures to prevent silver electrode sulfide corrosion. Resistance range 1Ω~10MΩ, tolerance ±0.5%~±5%.

Applications: High-end computing equipment (servers, workstations), industrial automation (PLC, motor drives, sensors, industrial robots), precision medical electronics, high-end multimedia equipment, outdoor electronics (communications infrastructure, traffic control, security monitoring, new energy facilities).

Advantages: Effectively solves resistor sulfuration failure in high-sulfur environments (hot springs/volcanic areas, industrial pollution zones, outdoor equipment).

Market Positioning: Professional anti-sulfur resistor market for electronic equipment operating in sulfur-containing environments.

(XVI) CR Series – Thick Film Chip Resistor

Part Number: CR series, full size range from 0201 to 2512

Features: General-purpose thick-film SMD resistors with ruthenium-based resistive material, highly reliable multilayer electrode construction, compatible with all soldering processes.

Applications: Telecommunications equipment, radio/tape recorders, TV tuners, digital cameras, watches, calculators, computers, instruments, medical and military equipment.

Advantages: The broadest general-purpose resistor product line with complete size coverage and excellent cost-performance ratio.

Market Positioning: General-purpose resistor market for consumer and industrial electronic equipment.

(XVII) CR..A Series – Automotive Grade Thick Film Chip Resistor

Part Number: Full size range from 0201 to 2512, with "A" suffix

Features: AEC-Q200 automotive grade qualified, highly reliable multilayer electrode construction, compatible with all soldering processes.

Applications: Various resistor applications in automotive electronic systems.

Advantages: Adds automotive-grade reliability certification to the cost-performance advantages of general thick-film resistors.

Market Positioning: Automotive electronics general-purpose resistor market.

(XVIII) CRW Series – Wide Terminal Thick Film Chip Resistor

Part Number: CRW08 (0508), CRW62 (0612), CRW20 (1020), CRW25 (1225)

Features: Wide terminal thick-film resistors, resistance range 1Ω~1MΩ, with special long terminal design enhancing power capability. 0508: 0.75W, 0612: 1W, 1020: 1.5W, 1225: 2W.

Applications: Telecommunications equipment, radio/tape recorders, digital cameras, computers, instruments, medical and military equipment.

Advantages: Wide terminal design delivers higher power and better heat dissipation in the same footprint.

Market Positioning: High-power thick-film resistor market for general-purpose applications requiring higher power density.

(XIX) CN Series – Thick Film Resistor Array

Part Number: CN series

Features: Single-package device containing networks of identical resistor elements, saving space and simplifying layout in applications requiring multiple identical resistors.

Applications: Circuit designs requiring multiple identical resistors.

Advantages: Integrated design reduces component count, saves PCB space, and improves assembly efficiency.

Market Positioning: Resistor array market for applications with integration and space constraints.

(XX) RT Series – Trimmable Thick Film Chip Resistor

Part Number: RT series

Features: Designed for special requirements with laser trimming capability for precise resistance adjustment.

Applications: Scenarios in precision electronic equipment requiring precise resistance trimming.

Advantages: Laser trimming technology enables flexible resistance adjustment for special circuit requirements.

Market Positioning: Professional trimmable resistor market for applications requiring resistance fine-tuning.

(XXI) HVRC Series – High Voltage Low VCR Thick Film Resistor

Part Number: Covers 1206 to 2512

Features: Specifically designed for high-voltage applications, maximum resistance 500MΩ, maximum overload voltage 4000V in 2512 size.

Applications: Voltage division, current limiting, and other high-voltage circuit applications.

Advantages: Achieves extremely high operating voltage and stability in SMD chip resistors.

Market Positioning: Professional high-voltage resistor market for power electronics and high-voltage power supplies.

(XXII) TR35/STR35 Series – TO-Package High Power Resistor

Part Number: TR35, STR35 series

Features: Thick-film TO220/TO263 package, achieving 35W at 25°C with heatsink.

Applications: Switching power supplies and snubber circuits, automatic machine controllers, RF power amplifiers, low-energy pulse loads, UPS, voltage regulation, bleed resistors.

Advantages: TO package facilitates heatsink attachment, enabling far greater power handling than SMD resistors.

Market Positioning: High-power resistor market for industrial power supplies and power electronics requiring substantial power dissipation.

III. Part Numbering Nomenclature

Viking resistor part numbers follow a systematic naming convention for quick specification identification. Taking typical examples:

AR Series Naming: AR + Size Code + Tolerance Code + TCR Code + Resistance Code

• AR: Series code (Thin Film Precision Resistor)

• Size Code: 01 (0201), 02 (0402), 03 (0603), 05 (0805), 06 (1206), etc.

• Tolerance Code: B (±0.1%), D (±0.5%), F (±1%), etc.

• TCR Code: T (±50ppm/℃), C (±25ppm/℃), E (±10ppm/℃), etc.

Alloy Resistor Naming: Taking "RS-05K102JT" as example

• RS: Series code

• 05: Size code (0805)

• K: Tolerance code

• 102: Resistance code (10×10²=1KΩ)

• J: Tolerance code

• T: Packaging code

IV. Application Areas Overview

Viking resistors serve the following major markets:

Industrial: Smart instrumentation, power supplies, fiber optics, industrial robots

Medical: AED, personal health electronics, blood pressure monitors, ECG displays, medication dispensers

Automotive: BMS, ADAS, ESU, ECU, charging stations, lighting, entertainment systems, electronic locks, rear-view sensors

Aerospace/Military: Communication systems, satellite systems

V. Core Competitive Advantages

1. Technology Leadership: One of few global manufacturers capable of producing resistors with ±0.01% accuracy and 1ppm/℃ TCR

2. Process Excellence: Unique thin-film + thick-film dual-process technology balancing precision and cost

3. Comprehensive Certifications: IATF16949, ISO13485, AEC-Q200, and more

4. Complete Size Range: From 01005 to 2512, covering the broadest range of package sizes

5. Full Product Portfolio: Covering thin-film, thick-film, alloy, anti-sulfur, anti-pulse, high-voltage, high-power, and all other categories

6. Customization Capability: Ability to manufacture special specifications per customer requirements

7. Quick Response: Fast delivery, complete inventory, and sample availability

VI. Recommended Distributor

Shenzhen Shunhai Technology Co., Ltd. is an authorized distributor of Viking (Guangjie) brand products, with over 20 years of industry experience in the alloy resistor and SMD resistor market. The company holds official manufacturer authorization, providing full-size alloy resistors from 0603 to 2512 covering multiple resistance specifications, with support for customized services (long electrode, wide electrode designs). Shunhai Technology maintains a complete supply chain and substantial on-hand inventory, committed to delivering quality service and cost-effective products.