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BSMD1812-110-24V 是 BHFUSE(佰宏)旗下的一款1812封装自恢复保险丝(聚合物正温度系数保护器,PPTC)。器件用于过流保护,过载或短路时自动跳闸限流,故障解除后自动恢复导通,适合对可恢复保护有要求的消费电子、通信、便携电源及车载低压系统。
封装规格为1812,典型尺寸:长度 4.73 mm、宽度 3.41 mm、高度 1.00 mm。紧凑尺寸便于贴片安装与自动化生产,适配常见1812封装PCB焊盘布局。
该款PPTC在正常工作时呈低电阻(约45 mΩ),允许通过正常电流;当电流超过Itrip并持续一定时间时,器件自发热使内部材料进入高电阻状态(跳闸后阻值可达250 mΩ),有效限制故障电流并防止下游电路损坏。故障消除并冷却后,器件会自动恢复低阻态,适用于反复保保护场合。
品牌:BHFUSE(佰宏)
型号:BSMD1812-110-24V(1812 封装,自恢复保险丝)
关键参数:Ihold 1.1 A / Itrip 2.2 A / Vmax 24 V / Imax 40 A / Rmin 45 mΩ / R1max 250 mΩ / Pd 1 W / 大小 4.73×3.41×1.00 mm / 工作温度 -40~+85 ℃
如需进一步资料(I–V曲线、时间-电流曲线、回流焊工艺建议或样品测试报告),建议联系供应商或查阅 BHFUSE 提供的技术文档以获得完整工程数据。
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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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