Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CH221K 是南京沁恒(WCH)推出的一款高集成度受电控制器(充电控制用 IC),专为便携电源、PD/QC 快充接收端与智能充电设备设计。芯片在小封装下实现高达 100W 的输出能力,并支持常见的多档输出电压,适配各类快充协议与设备需求。
南京沁恒(WCH)提供器件选型手册、原理图参考、典型应用电路及封装资料。建议在产品导入阶段与供应商技术支持沟通,获取最新的规格书(Datasheet)、焊接与布局建议,以及量产测试参考。
CH221K 以其多档输出、高功率能力与工业级工作温度,适合需要可靠快充接收与紧凑封装的各类充电设备应用。通过合理的 PCB 布局与热管理,可在各种复杂环境中实现稳定、高效的充电控制解决方案。
Request for quote
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.
The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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