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MDD SMF5.0CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MDD SMF5.0CA
- Type
- MDD
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MDD
- Electronic Component
- SMF5.0CA
- Electronic Component
- 1
- Package
- SOD-123FL
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.032g
- Electronic Component
- 1
- Electronic Component
- BM0227599070
- Operating Temperature
- 55℃~+150℃
- Voltage
- 9.2V
- Current(Ir)
- 400uA
- Voltage(VBR)
- 7V
- 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.
SMF5.0CA（MDD）产品概述
一、产品简介
SMF5.0CA 是 MDD 品牌的一款双向瞬态电压抑制器（TVS 二极管），封装为 SOD-123FL。针对 5V 等低电压系统设计，能在瞬态过电压事件（如雷击、开关浪涌、电磁脉冲）发生时快速钳位，保护下游敏感器件不受损坏。器件工作温度范围宽（-55℃ 到 +150℃），适用于工业级与民用电子产品的抗浪涌保护。
二、主要电气参数
- 极性：双向（无需极性方向安装，适合交流或差分信号保护）
- 反向截止电压 Vrwm：5 V
- 击穿电压（典型）：7 V
- 钳位电压 Vclamp（Ipp）：9.2 V
- 峰值脉冲电流 Ipp：21.7 A（单次浪涌脉冲）
- 峰值脉冲功率 Ppp：200 W（按标准脉冲条件）
- 反向漏电流 Ir：400 μA（在 Vrwm 条件下）
- 工作温度范围：-55℃ ~ +150℃
- 类型：TVS，型号：SMF5.0CA，品牌：MDD，封装：SOD-123FL
三、封装与物理特性
SOD-123FL 封装体积小、焊接方便，适合自动贴装和回流焊工艺。小型化封装对 PCB 布局要求较高，需要注意散热路径与与地/电源的短距离连接，以便在浪涌发生时快速将能量引入地线或电源轨。
四、典型应用场景
- 5V 电源轨、USB 接口、CAN 或其他差分总线的瞬态抑制
- 工业控制设备、通讯设备、嵌入式系统的输入/输出保护
- 电机驱动、传感器模块和电源适配器的局部浪涌防护
五、使用与设计要点
- 双向特性使其可直接并联在两端以保护双向或交流信号，无须区分极性。
- 布局建议：将 TVS 尽量靠近被保护端口和接地回路短且低阻抗，以减小环路电感，提高钳位效率。
- 注意功率和热耗散：虽然 Ppp=200W，但为瞬态脉冲额定值，频繁或长时间冲击需考虑热累积与器件老化，必要时增加外部限流或更大能量吸收元件。
- 漏电流 Ir=400 μA 在某些低功耗电路中可能影响偏置，应评估待保护电路的允许漏电限值。
六、可靠性与环境
器件额定工作温度覆盖宽温域，适合恶劣环境。实际使用时应参照 MDD 提供的可靠性与焊接规范（如回流曲线、焊前处理、储存条件）以保证长期稳定性。
七、选型建议
在选择时，确认系统最大工作电压与 Vrwm 匹配（Vrwm=5V 适配 5V 轨）；根据可能出现的冲击能量评估 Ipp 与 Ppp 是否足够，如高能雷击或多次脉冲场合需选用更大能量等级或并联采用合适的保护策略。若对漏电流或夹位电压有更严格需求，可比较相邻型号的 Ir、Vclamp 和容值以优化性能。
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