Send voltage, RDS(on), package, grade, AEC-Q need, AVL rules and monthly usage.
China-market enterprise sourcing desk
Volume sourcing for China’s critical electronics supply chain.
Built for OEMs, EMS groups, Tier suppliers, industrial manufacturers and distributors buying shortage-risk discrete semiconductors in serious volume, with traceability, compliance checks and China delivery support.
Direct sourcing desk
sales@tracegridsupply.com
China focus
CN delivery and buyer support
Bulk buyers
production and distribution demand
Traceable lots
evidence-led sourcing
Enterprise RFQ lane
Send a BOM, shortage list or high-volume MPN demand.
Smart sourcing intelligence
Paste a BOM. Get a sourcing risk readout.粘贴BOM，立即生成寻源风险判断。
Built to feel like a procurement platform: detect MPNs, classify likely part families, flag China-market risk and prepare the RFQ data buyers need. 面向采购平台体验：识别型号、判断器件类别、标记中国市场风险，并整理RFQ所需信息。
0MPNs detected
Readyrisk status
No BOM analyzed yet.
Paste manufacturer part numbers to generate risk badges, missing questions and RFQ notes.
Market watch
Nexperia watchTraceability, exact MPN approval and China/Dutch operational split risk.
Automotive MOSFETsAEC-Q, PPAP, AVL and package-level constraints can slow substitution.
IGBT / power modulesHigh-power lines depend on module generation, layout and authenticity checks.
SiC capacitySpecialist capacity and qualification limits make alternates harder to approve.
China desk
WeChat-ready RFQ support
Add a WeChat QR code or sourcing desk ID here for China buyers. Keep email as the compliance record, use WeChat for fast clarification.
Supplier screened
Photos requested
CoC checked
Date code verified
Compliance review
China delivery
Send voltage/current class, module layout, generation, thermal needs and application.
Send voltage, current, package, capacitance/clamping needs, reel/date-code rules.
Send qualification status, package, approved vendors, target lead time and substitute rules.
What we source
Built for China-market buyers who need dependable volume.
We are not aiming at hobby orders or small one-off purchases. The service is designed for production buyers, purchasing managers and distributors managing approved-vendor lists, shortage lines and repeat demand.
Diodes, transistors, logic and ESD protection二极管、晶体管、逻辑器件和ESD保护
Volume sourcing, cross-reference support and supply-chain trace review for exposed lines.面向紧缺型号提供批量寻源、替代料交叉参考和供应链追溯审核。
MOSFETsMOSFET功率管
Automotive and industrial MOSFETs by package, voltage, RDS(on), grade and AVL requirement.按封装、电压、导通电阻、等级和AVL要求匹配汽车级与工业级MOSFET。
IGBTs and modulesIGBT及功率模块
Discrete IGBTs, power modules and inverter-grade parts from specialist global channels.从专业全球渠道寻源分立IGBT、功率模块和逆变器级器件。
SiC MOSFETs and diodes碳化硅MOSFET和二极管
Qualified silicon-carbide parts where capacity, lead time and substitute approval matter.针对产能、交期和替代料认证敏感的合格碳化硅器件寻源。
Market focus
Clear wording. Serious opportunity.
We do not claim China has a blanket shortage of every diode or transistor. The confirmed opportunity is narrower and more valuable: branded and qualified discrete lines where traceability, exact fit, volume allocation and production approval are difficult.
See the full parts coverage
Generic diodes / basic transistors
Usually available
Nexperia branded lines
Real traceability risk
Auto / industrial MOSFETs
Tight by spec
IGBTs / power modules
Selective constraints
SiC devices
Qualification-sensitive
Quality and compliance
The reason buyers answer the phone.
Enterprise buyers cannot risk fake reels, mixed lots or wrong substitutes. Every RFQ is handled with origin, packaging, lot, date-code, compliance and end-use screening before we offer stock.
01
MPN validation型号验证
We confirm manufacturer, package, lifecycle, datasheet match and approved alternates.确认制造商、封装、生命周期、数据手册匹配以及已批准替代料。
02
Supplier screening供应商筛选
Stock is checked through distributor, broker and excess inventory channels with risk scoring.通过授权分销、经纪商和尾货库存渠道核查货源，并进行风险评分。
03
Trace review追溯审核
We request photos, labels, date codes, CoC, invoice chain and packaging evidence where available.尽可能索取照片、标签、日期码、合格证明、发票链和包装证据。
04
Compliance gate合规审核
Orders are screened for restricted parties, destination, end use and export-control sensitivity.对受限方、目的地、最终用途和出口管制敏感性进行订单筛查。
Who we serve
Not a retail shop. A sourcing desk for serious buyers.
OEM purchasing teamsOEM采购团队
Production continuity, AVL control and shortage coverage.保障生产连续性、AVL管控和紧缺物料覆盖。
EMS and contract manufacturersEMS与代工厂
BOM support across multiple customer builds and factory schedules.支持多客户BOM、工厂排产和批量交付需求。
Tier suppliers一级及配套供应商
Automotive, industrial, energy and power-system approved demand.面向汽车、工业、能源和电力系统的认证需求。
Distributors and brokers分销商与贸易商
Bulk demand, market-sensitive lines and verified replenishment channels.批量需求、敏感型号和已验证补货渠道支持。
Nexperia
Infineon
STMicroelectronics
Vishay
onsemi
Mitsubishi
Fuji Electric
ROHM
Wolfspeed
Distributor channels
We monitor major global distribution routes for China-market demand.
For enterprise RFQs, we check authorised distributors, franchised channels, broker networks and excess inventory routes. Listed names are market references, not a claim of official partnership or authorisation.
DigiKeyAuthorised distribution
MouserAuthorised distribution
ArrowGlobal supply chain
AvnetEnterprise distribution
FutureProduction sourcing
RSIndustrial electronics
TTISpecialist distribution
WPGAsia distribution
Traceable route map
Global manufacturer anchors. Every qualified route leads to China.
The map shows key company headquarters or regional anchors for the manufacturers we track. Actual supply can move through authorised distributors, regional warehouses, broker networks or excess inventory channels before China delivery.
Active route
Nexperia → China
Nijmegen, Netherlands
Priority watch for Nexperia-branded diodes, transistors, logic and ESD protection devices where traceability and exact MPN approval matter.
安世半导体相关二极管、晶体管、逻辑和ESD保护器件，重点关注追溯和型号匹配。
RFQ desk
Send the parts. Get a real sourcing answer.
Add exact MPNs, target quantity, monthly usage and qualification constraints. We will respond with availability, lead time, risk notes and next-step evidence requests.
- Bulk MPN demand and production shortage sourcing
- China delivery support and bilingual communication
- Traceability, date code and packaging checks
- Compliance screening before offer confirmation
Buyer questions
Semiconductor sourcing FAQs for China-market buyers.
Quick answers for enterprise buyers sourcing shortage-risk discrete semiconductors, power devices and qualified production parts.
Do you support small retail orders?
No. TraceGrid Supply is built for bulk RFQs, scheduled production demand, shortage recovery and distributor replenishment, not hobby or low-value one-off purchases.
Which parts are best suited?
Priority lines include branded diodes, transistors, logic, ESD protection devices, MOSFETs, IGBTs, SiC MOSFETs, SiC diodes and power modules.
Can you source for China delivery?
Yes. The site is focused on China-market buyers and supports bilingual clarification, delivery planning and compliance checks before offer confirmation.
Are you an authorised distributor?
No official authorisation is claimed unless stated in writing. We monitor authorised distributors, franchised channels, broker networks and excess inventory routes.
Contact sales
Talk to the sourcing desk.
For direct enquiries, supplier introductions or urgent China-market shortage support, email the sales desk or send the contact form.
sales@tracegridsupply.com