Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
HXY MOSFET SMF26A
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HXY MOSFET SMF26A
- Type
- HXY MOSFET
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HXY MOSFET
- Electronic Component
- SMF26A
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.04g
- Electronic Component
- 1
- Electronic Component
- BM0225775184
- Voltage
- 42.1V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 28.9V；31.9V
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMF26A 产品概述
一、产品简介
SMF26A 是华轩阳电子（HXY MOSFET）推出的一款单向 TVS（瞬态电压抑制）二极管，封装为 SOD-123FL。器件专为瞬态过压、雷击及开关瞬变保护设计，适用于 24V 级电源总线、通讯接口及一般工业控制电路的浪涌保护。
二、主要电气参数
- 型号：SMF26A
- 类型：单向 TVS 二极管
- 反向截止电压 Vrwm：26 V（反向工作电压）
- 击穿电压（Vbr）：典型值 28.9 V；最高 31.9 V（在指定漏流条件下）
- 钳位电压 Vc（峰值）：42.1 V（在峰值脉冲电流条件下）
- 峰值脉冲功率 Ppp：200 W（脉冲能量能力见厂方条件说明）
- 峰值脉冲电流 Ipp：4.8 A（对应钳位电压测量点）
- 反向静态电流 Ir：1 μA（在 Vrwm 条件下）
- 极性：单向（具有整流特性）
- 封装：SOD-123FL（小型表面贴装）
三、性能与特点
- 对 24V 级系统（反向工作电压 26V）提供可靠保护，能在瞬态冲击下将电压钳位在可接受范围（典型 42.1V），保护后级元件。
- 低反向漏电（≈1 μA），不会显著影响静态功耗或系统偏置。
- 单向结构在反向电压下提供高阻态，而在正向过压时迅速导通吸收能量，适合 DC 侧保护。
- SOD-123FL 封装体积小、热阻较低，利于空间受限电路的设计与自动贴装生产。
四、典型应用场景
- 汽车周边电子（24V 线束、传感器接口）
- 工业控制与测控设备的电源总线防护
- 通信设备（以 24V 或类似电平供电的端口）
- 电源模块输入端、继电器线圈和电机驱动的浪涌抑制
五、设计与选型建议
- 选型时确保 Vrwm（26V）高于电路正常工作电压并留有裕量；若系统有持续高压或反向工况需求，应考虑更高 Vrwm 或双向器件。
- 注意钳位电压 42.1V 与后级器件最大耐压的匹配，必要时在 TVS 前加序列阻抗或滤波元件以分担能量。
- 峰值功率 200W 适合短时脉冲（具体波形和能量需参考厂方数据表），若遭遇更高能量冲击需并联或选型更高功率产品。
六、布局与焊接注意
- PCB 布局中将 TVS 与被保护节点及地之间的连接走线尽量缩短、宽化以降低寄生电感和热阻。
- SOD-123FL 支持常规回流焊工艺，但应遵循厂方的焊接温度曲线，避免过热引起器件性能退化。
- 对可靠性要求高的场合建议做浪涌测试验证（IEC/EN 标准脉冲）并评估多次冲击后的性能保持。
总结：SMF26A 以其 26V 的工作电压、低漏电与 200W 的瞬态吸收能力，适合用于 24V 级系统的瞬变保护。合理的 PCB 布局和选型考虑能发挥其最佳保护效果，具体应用时请结合厂方完整数据表与实际测试结果进行最终验证。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
Model, package, availability, and BOM fit reviewed before quotation.
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Sourcing availability signal
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Examples of how common component sourcing requests are organized.
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.
Related products
Packaged components ready for RFQ.
