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MDD SMF7.5CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MDD SMF7.5CA
- Type
- MDD
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MDD
- Electronic Component
- SMF7.5CA
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.039g
- Electronic Component
- 1
- Electronic Component
- BM0258755377
- Operating Temperature
- 55℃~+150℃
- Voltage
- 12.9V
- Current(Ir)
- 50uA
- Voltage(VBR)
- 9.21V
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMF7.5CA 双向 TVS 二极管（SOD-123FL）产品概述
一、产品简介
SMF7.5CA 是 MDD 提供的一款双向瞬态抑制二极管（TVS），采用 SOD-123FL 封装，专为瞬态过压和浪涌保护设计。其主要电气参数包括：反向截止电压 Vrwm = 7.5V，击穿电压 Vbr ≈ 9.21V，钳位电压 Vc ≈ 12.9V（在 10/1000μs 峰值脉冲下），峰值脉冲电流 Ipp = 15.5A（10/1000μs），峰值脉冲功率 Ppp = 200W（10/1000μs），静态反向电流 Ir ≤ 50μA。工作温度范围 −55℃ 至 +150℃。
二、主要特性
- 双向保护，适用于交流或可正反向瞬变场景；
- 低钳位电压，有效限制过压对敏感元件的冲击；
- 高峰值传导能力（15.5A@10/1000μs，200W），对雷击和浪涌有良好吸收能力；
- 低漏电流（≤50μA），适合对待机功耗敏感的系统；
- 小型 SOD-123FL 封装，便于表面贴装与高密度布板。
三、典型应用
适用于电源浪涌保护、通信接口（串口、CAN、USB）、汽车电子保护（车身电子、传感器接口）、工业控制设备、消费类电子（充电器、适配器）及 LED 驱动等需要稳压和抗浪涌的场合。
四、电气性能说明
- Vrwm（7.5V）为推荐工作电压上限，设备在此电压下长期稳定工作；
- Vbr（约 9.21V）为器件进入击穿的参考值；
- Vc（12.9V）是在指定脉冲波形（10/1000μs）和电流条件下的典型钳位电压，用以评估被保护电路的最大承受电压；
- 指定的 Ipp 与 Ppp 说明器件对短时大能量脉冲的承受能力，选型时应与系统可能出现的浪涌能量匹配。
五、封装与安装建议
SOD-123FL 为低剖面表贴封装，适合回流焊工艺。双向器件在电路板上无极性方向限制，但应保证到地（或线间）回流路径短且阻抗低，以降低钳位电压和环路感应。建议在 PCB 布局时将 TVS 靠近受保护接口或电源入口放置，并配合适当的过流/滤波元件使用。
六、选型与使用注意
- 若系统工作电压接近 7.5V，应留出工作裕度，避免误触发；
- 对于频繁或高能量浪涌场合，确认所需的 Ipp/Ppp 大小并考虑并联或选用更高等级器件；
- 注意器件热耗散与环境温度，必要时在热管理上采取措施以防过热导致失效；
- 存储和贴装过程中注意静电防护与规范焊接工艺。
七、结论
SMF7.5CA（MDD，SOD-123FL）是一款适用于中等能量浪涌防护的双向 TVS，具有低漏电、低钳位和高脉冲承受能力，适合多种工业、汽车和消费电子应用场景。在实际设计中应结合系统电压、浪涌幅值与热管理要求合理选型与布板，以达到最佳保护效果。
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