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.
FRICM-5020-142是长江微电(cjiang)推出的SMD贴片式双通道共模滤波器,针对电子系统电磁干扰(EMI)抑制需求设计,兼顾信号完整性与电流承载能力,适配多场景低压小功率电路滤波。
共模滤波器是EMI抑制的核心器件,核心作用是衰减共模噪声(两路线路上相位/方向相同的干扰),同时保留有用差模信号(相位/方向相反的传输信号)。FRICM-5020-142定位于中小功率、高密度安装场景,通过优化磁芯与绕组设计,在100MHz关键EMI频段实现高效噪声抑制,满足低损耗、宽温工作需求。
参数直接决定适用场景,以下解析核心参数的实际意义:
100MHz是电子设备常见干扰频段(高速接口、无线二次谐波等),该参数表明产品对该频段共模噪声的衰减能力强——共模阻抗越高,干扰抑制越显著,且不影响有用信号传输(差模阻抗远低于共模阻抗)。
符合汽车电子、工业控制等严苛环境要求(车载低温启动、工业高温工况),极端温度下性能无漂移。
FRICM-5020-142采用SMD-4P 5x5mm贴片封装,设计优势明显:
5x5mm尺寸节省PCB空间,适配手机、笔记本等高密度布线场景;4引脚双通道结构,可同时滤波两路信号/电源,无需额外器件。
产品参数特性使其适用于多场景:
确保性能最大化,需注意:
若干扰频段偏离100MHz,参考同系列低/高阻抗版本,确保抑制效果。
FRICM-5020-142兼具高效共模抑制、低损耗、宽温工作、紧凑封装优势,覆盖多领域需求,是国产化替代进口滤波器的理想选择。
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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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