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SMF24CA(CBZ)为晶导微电子推出的一款高能瞬态抑制二极管(TVS),封装为SOD-123FL。其反向截止电压Vrwm为24V,击穿电压约29.5V,钳位电压为38.9V,能在10/1000μs波形下承受200W峰值脉冲功率,峰值脉冲电流Ipp为5.1A,静态反向漏电流仅1μA。工作温度范围宽:-55℃至+150℃,适合苛刻环境下长期可靠工作。
SOD-123FL体积小、焊接方便。建议将器件尽量靠近被保护端口或连接器放置,缩短走线;在焊盘周围留足铜箔以增强散热;必要时在器件地端加宽地铜或采用热沉垫,提高脉冲能量下的散热能力;若系统有更高能量需求,可并联或选用更大封装器件。
选择时应以系统稳态电压匹配Vrwm为先,确认钳位电压是否对下游器件安全;评估脉冲能量谱与10/1000μs规格的适配性;关注封装对PCB空间与散热的影响。如需双向保护或更高功率等级,可考虑系列其他型号或更大封装替代。
总结:SMF24CA(CBZ)以其24V级的稳态匹配、200W脉冲吸收能力、低漏电与宽温区特性,是工业与通信类24V线路瞬态抑制的实用选择。
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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.
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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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