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.
YNR6045-221M(品牌:YJYCOIN / 益嘉源)是一款面向电源应用的磁胶屏蔽功率电感,封装为SMD,外形尺寸6.0 × 6.0 × 4.5 mm。主要电气参数为额定电感值220 µH(±20%),额定电流590 mA,饱和电流Isat 700 mA,直流电阻(DCR)834 mΩ。该器件以磁屏蔽结构为特点,适合空间受限且对磁干扰有一定要求的开关电源、电源滤波与能量储存场合。
提示:电感在施加直流偏置电流时会出现电感量下降(直流偏置效应),在设计时需评估工作电流下的实际电感值及其对系统性能的影响。
DCR 导致的铜损(近似)为 P = I^2 × DCR。
由此可见,在接近或超过额定电流时器件损耗显著,应考虑散热路径与周围温度对额定电流的影响。建议在布局中留出散热铜面积并避免把发热器件密集堆放。
如需更详细的磁性曲线(电感随直流电流的变化)、温升曲线或推荐焊盘设计图,建议向供应商或器件数据手册索取完整规格书与推荐实物图样进行验证。
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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