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.
FNR4020S1R0MT 是长江微电(cjiang)推出的一款磁胶屏蔽功率电感,封装为 SMD 贴片型,外形尺寸约 4×4 mm,面向对体积、效率与电流承载有较高要求的电源应用。器件标称电感值 1.0 μH,公差 ±20%,额定电流 3.2 A,饱和电流(Isat)5.2 A,直流电阻(DCR)约 38 mΩ,适合开关电源与点位负载滤波场景。
磁胶屏蔽工艺在磁芯外部覆以粘结/灌封材料,一方面增强了磁路的屏蔽与抗振性,另一方面改善了散热与可靠性表现。4×4 mm 的小型封装在保证较高电流能力的同时,适配现代紧凑型 PCB 布局要求。38 mΩ 的低 DCR 有利于降低铜损,提高系统效率和热管理余量。
如需器件三维尺寸图、PCB 推荐封装或更详细的电气特性曲线(温度系数、频率特性、纹波电流下的电感变化等),建议联系供应商长江微电(cjiang)获取原厂数据手册与样品测试支持。
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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