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.
FNR4030S820MT是长江微电(cjiang) 推出的一款小型化磁胶屏蔽功率电感,采用SMD表面贴装封装(4×4mm尺寸),专为低功耗、高密度PCB布局的电子设备设计,核心定位为电源系统的滤波与储能元件,覆盖消费电子、物联网、可穿戴等对体积与效率要求严格的场景。
标称电感值为82μH,精度±20%,满足DC-DC转换器输出滤波、电源纹波抑制等常规需求。该精度范围可平衡成本与性能,无需额外校准即可稳定工作,适配大多数低功耗电源系统的滤波带宽要求。
低DCR设计(1.378Ω)可显著降低电感自身功耗(P=I²×DCR),适合对电源效率敏感的应用(如可穿戴设备电池供电系统),相比同规格开放式电感,功耗降低约20%。
采用磁胶屏蔽结构,通过一体化包裹磁芯减少电磁辐射,相比开放式电感可降低约30%的EMI干扰,适配对电磁兼容性要求较高的设备(如医疗电子、通信终端)。
长江微电是国内专注电感研发的企业,产品覆盖功率电感、贴片电感等系列,广泛应用于消费电子、工业控制领域。FNR4030S820MT经过温度循环、振动测试、盐雾测试等可靠性验证,可保证10万小时以上使用寿命,满足批量生产一致性要求。
总结:FNR4030S820MT凭借紧凑封装、稳定电性能、低EMI设计,成为小型化低功耗设备的理想电感选型,有效平衡体积、效率与成本,适配多场景应用需求。
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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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