Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FNR6045S221MT 是长江微电(cjiang)推出的一款磁胶屏蔽型功率电感,封装为 SMD,外形约 6×6 mm。标称电感量 220 μH,公差 ±20%,适用于中低功率的滤波与能量储存场合。器件采用磁胶屏蔽结构,磁通泄露小、抗干扰性能良好,适合空间受限且对 EMI 有一定要求的电路板设计。
说明:Isat 为器件进入磁饱和、原始电感量明显下降时的参考电流。厂商通常以电感下降到初始值的某一比例(如 30%~50%)作为饱和判断依据,因此在接近 Isat 时电感量会显著降低,应在电路设计时预留裕量。
该器件适合对电感量要求较高但工作电流在数百毫安量级的场合;若系统电流经常接近或超过饱和电流,应考虑选用更大电流等级的电感。
由于 DCR 较高(1.084 Ω),在额定电流下的直流功耗不可忽视:
建议设计时:
磁胶屏蔽结构在降低外泄磁场方面有优势,但在应用中仍需注意长期温度循环和潮湿环境对磁性体与胶粘层的影响。建议在可靠性验证阶段进行温升测试、热循环、震动与焊接耐久性验证,确认在目标工况下电感量与 DCR 的稳定性。
如需更详细的电感频率特性曲线、饱和特性曲线或封装尺寸图用于 PCB 布局与热仿真,可联系供应商索取器件数据手册和应用笔记。
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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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