SUNWAY Resistors Series Overview: Part Numbers, Features, Applications & Market Position
SUNWAY resistors, produced by Shenzhen Sunway Communication Co., Ltd. (stock code: 300136.SZ), have rapidly become a notable domestic alternative in the surface-mount resistor market. Backed by the company's RF-component heritage and vertically integrated manufacturing, the SUNWAY resistor portfolio spans general-purpose, automotive-grade, anti-sulfur, anti-surge, high-voltage, thin-film, and current-sensing categories. This article breaks down the series lineup, part-number decoding, technical characterist
SUNWAY Resistors Series Overview: Part Numbers, Features, Applications & Market Position
SUNWAY resistors, produced by Shenzhen Sunway Communication Co., Ltd. (stock code: 300136.SZ), have rapidly become a notable domestic alternative in the surface-mount resistor market. Backed by the company's RF-component heritage and vertically integrated manufacturing, the SUNWAY resistor portfolio spans general-purpose, automotive-grade, anti-sulfur, anti-surge, high-voltage, thin-film, and current-sensing categories. This article breaks down the series lineup, part-number decoding, technical characteristics, applications, competitive positioning, and procurement recommendations.
Brand Background
Founded in April 2006 and listed on the Shenzhen Stock Exchange ChiNext board in November 2010, Sunway Communication is a leading RF device and passive component solution provider globally. In 2021, the company acquired 100% equity of Ju Yong Chang, officially entering the SMD resistor, capacitor, and inductor production business.
By the end of 2023, Sunway employed over 10,000 people, generated RMB 7.548 billion in revenue, and had filed 4,482 patents cumulatively, with R&D investment maintained at no less than 8% of annual revenue. This material-science and process foundation is what differentiates SUNWAY resistors from generic trading-company products — they are engineering-driven components built on the same RF and materials expertise that powers Sunway's antenna and module business.
SUNWAY Resistor Series Lineup
The SUNWAY SMD resistor family is organized into more than ten series, covering everything from consumer-grade general parts to automotive-specific solutions:
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Series
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Positioning
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Key Traits
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SC
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General thick-film chip resistor
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Full size range, cost-effective baseline
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SF
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Automotive anti-sulfuration resistor
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Resists sulfur-containing atmosphere corrosion
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SR
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Anti-surge thick-film resistor
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AEC-Q200 qualified, strong pulse withstand
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ST
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Thin-film chip resistor
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Low TCR, high precision
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SG
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High-temperature resistor
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For elevated-temperature environments
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SV
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High-voltage resistor
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High dielectric withstand design
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SY
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Network (array) resistor
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Integrated package, PCB space saving
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SA
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Automotive-grade thick-film
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AEC-Q200, full size 0201~2512
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SM / SP / SD / SU / SX / SE
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Metal alloy current-sense resistors
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For current sampling and shunts
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Among these, the SA and SR series are explicitly marked "AEC-Q200 qualified," making them directly importable for automotive electronics. The SF series targets electrode corrosion in sulfur-rich environments common in automotive, industrial, and base-station power applications.
Part Number Decoding
SUNWAY uses a unified Global Part Number structure. Taking the SP metal-alloy current-sense series as an example:
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① Series: SP = Metal Alloy Current-Sense Resistor
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② Package: 1206 / 2512
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③ Tolerance: J=±5%, G=±2%, F=±1%, D=±0.5%
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④ Resistance: R001 = 1mΩ, 1U50 = 1.5mΩ ("R"/"U" as decimal point)
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⑤ TCR: E=±50ppm, F=±100ppm, J=±350ppm
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⑥ Power: 1W, 3W
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⑦ Control code: N=Lead Free, P=Total Lead Free
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⑧ Packing: KH=7" embossed tape, RH=7" paper tape, DD=Bulk
The automotive SA and anti-surge SR series follow a similar structure but add a temperature-coefficient field (A=±5ppm through Q=±700ppm) and encode power via codes such as 2A=1/16W, 4A=1/8W, 8A=1/4W, 1C=1/2W. For instance,
SA0402J1003F2ANRH decodes to: SA series, 0402 package, ±5% tolerance, 100kΩ, ±100ppm/℃, 1/16W, lead-free, 7" paper tape.💡 Procurement tip: Reading the part number correctly is the first step to avoiding misorders. Within the same package, different suffixes can mean very different temperature stability and power ratings — exactly the parameters that decide whether your circuit survives thermal drift or high-current surges.
Key Technical Characteristics
Across all series, SUNWAY resistors share several baseline capabilities:
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Environmental compliance: Full RoHS and halogen-free compliance, REACH aligned
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Soldering compatibility: Wave and reflow solder capable; MSL class 1
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Broad size coverage: From ultra-miniature 01005 and 0075 to high-power 2512 packages, serving both high-density phone motherboards and power-module current sensing
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Automotive readiness: SA, SR, SF series designed to AEC-Q200, eligible for automotive import
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Alloy current sensing: SP series features low TCR (down to ±50ppm/℃), high power (3W at 2512), low resistance (down to 1mΩ)
Taking SP2512 as an example: rated power 3W, resistance range 1mΩ–500mΩ, TCR segmented between ±50 / ±100 / ±350 ppm/℃, operating temperature -55℃ to +170℃. This spec level is already comparable to first-tier international alloy-resistor brands.
Typical Applications
SUNWAY's product line is mapped closely to downstream industry needs:
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Automotive electronics: SA (automotive-grade thick film), SF (anti-sulfuration), SR (anti-surge) cover ECUs, BMS, lamp drivers, motor control
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Telecom & data communications: 01005/0075 micro-size resistors for 5G base stations, routers, switches
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Power management: SP alloy current-sense resistors for DC-DC, fast chargers, PD adapters
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Industrial control: SG high-temp and SV high-voltage series for VFDs, servo drives, power meters
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Consumer electronics: SC general thick-film for smart devices, wearables, smart home
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New energy: PV inverters, energy storage BMS, EV charging piles
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Medical & smart metering: ST thin-film for high-precision, low-noise measurement
Product Advantages & Market Positioning
On the technical side, SUNWAY's core advantage comes from being an "RF house doing passives" — material formulations, thin/thick-film processes, and micro-package manufacturing know-how carry over directly from its antenna and RF-module experience. This gives SUNWAY a natural edge in yield control for extreme miniaturization like 01005 and 0075.
On the supply side, as an A-share listed company, Sunway offers stable capacity expansion and traceable quality systems, giving previously Japan-dependent (Rohm, Panasonic) or US-dependent (Vishay) customers a credible domestic option.
In market positioning, SUNWAY pursues a "mid-to-high-end + full-portfolio + localization" strategy:
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Specifications benchmarked against international brands, with more flexible commercial terms
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Complete tier coverage from consumer to automotive, enabling one-stop sourcing
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Listed-company backing translates to localized advantages in payment terms, lead times, and technical support
For hardware teams doing domestic substitution without wanting to compromise on quality baselines, SUNWAY is one of the few domestic vendors offering a "full-series + automotive-grade + stable supply" combination.
Recommended Supplier: Shenzhen Shunhai Technology Co., Ltd.
If you are evaluating SUNWAY resistor adoption or volume procurement, Shenzhen Shunhai Technology Co., Ltd. is a partner worth prioritizing.
Founded in August 2012 and headquartered in the Shenzhen Longhua Science Park, Shunhai Technology is a professional technical distributor focused on semiconductors and passive components. It is a wholly-owned subsidiary of YUXING TECHNOLOGY (HK) CO., LTD. under the TXGA Group.
Regarding SUNWAY, Shunhai obtained China-region distribution authorization from Shenzhen Sunway Microelectronics Co., Ltd. for the period November 1, 2024 to October 31, 2025 (Authorization No.: SW-RCL-CN-24C015), covering ceramic resistors and alloy resistors. This means SUNWAY resistors procured through Shunhai can be traced back to an authorized channel, mitigating counterfeit risk.
Shunhai's core procurement value:
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Full-category matching: Beyond SUNWAY, also distributes Ellon, SOCAY, Ever Ohms, Walter, Sea & Land, CCTC, Lanson, Milliohm and 10+ other brands, enabling one-stop BOM fulfillment
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Technical support: Team provides selection guidance, parameter matching, and design-in assistance to help engineering teams avoid deviations during domestic substitution
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Inventory & lead time: Self-built spot inventory supports both prototype batches and mass production with flexible scheduling
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Quality control: ISO9001 certified; blockchain-based batch traceability available for some lines
Contact:
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Address: Floor 7, Block B, Building 9, Shenzhen Longhua Baoneng Sci-Tech Park
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Tel: 0755-28100016
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Email: marktian@uxingroup.com
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Contact: Tian Zhen, 186-8229-1437
⚠️ Procurement reminder: Sunway authorizes its sub-brands by category (this authorization covers ceramic resistors and alloy resistors). For other series such as SC general thick-film or SA automotive-grade, confirm with Shunhai whether the specific category falls within the current authorization scope before placing orders.