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.
SMF18CA 是华轩阳电子(HXY MOSFET)推出的一款双向瞬态电压抑制二极管(TVS),用于抑制瞬态过电压和浪涌电流,保护敏感电子元件免受雷击、电源瞬变和开关感性负载反向峰值影响。器件采用 SOD-123FL 小型封装,适合表面贴装应用,兼顾体积与功率处理能力。
器件在规定脉冲测试条件下能够承受高达 200W 的脉冲能量并在 6.8A 峰值电流时将过电压钳制在约 29.2V。击穿电压分布在 20V 到 22.1V 范围,保证触发一致性。低漏电流有利于在待机或高阻抗电路中保持低损耗。
SMF18CA 采用 SOD-123FL 表面贴装封装,适合自动回流焊工艺。布局时建议将 TVS 靠近被保护的输入/接口引脚放置,走线尽可能短且宽以降低串联电感与提高热散;焊盘应符合制造商推荐尺寸并保证良好接地回流路径以利于热量与冲击电流分散。
在高能量脉冲条件下器件会产生热量,长时间反复承受接近额定 Ppp 的脉冲会影响寿命。设计时应留有安全裕度,必要时可并联或选用更高功率等级的 TVS。环境温度、焊接工艺和散热条件均会影响器件性能与可靠性。
选型时确认系统最大工作电压与可能出现的瞬态幅度,SMF18CA 适用于以 18V 左右工况的保护需求。订购时请按完整型号及封装(SOD-123FL)下单,并向华轩阳电子核实最新规格书与批次一致性,以保证钳位电压、击穿范围与脉冲能力满足系统要求。
如需更详细的典型波形、脉冲测试条件或封装尺寸图,请提供联系方式或直接索取器件规格书(datasheet)。
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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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