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BLM03HG102SN1D 是村田(Murata)推出的一款超小型磁珠(ferrite bead),封装尺寸为 0201,用于高频噪声抑制与电磁干扰(EMI)抑制。该器件在 100 MHz 时标称阻抗为 1 kΩ,直流电阻(DCR)为 2.6 Ω(±25%),额定电流 125 mA,工作温度范围 -55 ℃ 至 +125 ℃,单通道器件,适合空间受限且对高频干扰要求严格的电子产品。
磁珠本质上是频率依赖的阻抗元件,其等效可以视为频率相关的阻性与感性/容性分量的组合。在低频时表现为低阻抗(近似电阻和小电感),在特定高频范围(如 100 MHz 附近)表现为较大阻抗,主要以能量耗散(磁损)形式抑制高频噪声。BLM03HG102SN1D 在 100 MHz 处提供 1 kΩ 阻抗,适用于抑制射频及数字开关噪声。
典型应用:
总结:BLM03HG102SN1D 在 0201 极小封装下提供较高的高频阻抗,适合对高频 EMI 要求严格且电流较低的应用场景。选型时应结合额定电流、DCR 与实际工作偏置的影响,合理布局与焊接工艺,以确保滤波性能与长期可靠性。
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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.
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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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