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ROHM SMF5V0TR
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ROHM SMF5V0TR
- Type
- ROHM
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ROHM
- Electronic Component
- SMF5V0TR
- Electronic Component
- 1
- Package
- SOD-123FL
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.017g
- Electronic Component
- 1
- Electronic Component
- BM0229305267
- Voltage
- 9.2V
- Electronic Component
- IEC 61000-4-2
- Current(Ir)
- 5uA
- Voltage(VBR)
- 6.4V
- 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.
SMF5V0TR（ROHM）产品概述
一、产品简介
SMF5V0TR 是 ROHM（罗姆）推出的一款用于静电与浪涌保护的瞬态电压抑制器（TVS/ESD）。该器件针对 5V 类供电和信号线上瞬态过电压事件提供快速钳位保护，关键参数包括反向截止电压 Vrwm = 5V、击穿电压 Vbr ≈ 6.4V、钳位电压 Vcl ≈ 9.2V，反向漏电流 Ir = 5 μA（典型）。封装为 SOD-123FL，适合表面贴装（SMT）应用。
二、主要特性与性能亮点
- 工作点匹配 5V 系统：Vrwm = 5V，适配常见的 5V 供电与接口电路。
- 强力浪涌抑制：峰值脉冲电流 Ipp = 21.7 A（10/1000 μs），峰值脉冲功率 Ppp = 200 W（10/1000 μs），能承受常见的工业浪涌或雷击诱发冲击。
- 有效钳位：典型钳位电压 9.2 V，在大电流条件下能将瞬态电压限制在较低水平，保护后级敏感器件。
- 低漏电流：Ir = 5 μA，保持系统待机功耗低，适合对静态功耗敏感的应用。
- 符合 ESD 标准：满足 IEC 61000-4-2 等静电放电防护规范，适用于遭受静电冲击风险的场景。
- 紧凑封装：SOD-123FL 提供小封装占位，便于高密度 PCB 布局。
三、典型应用场景
- USB、串口、GPIO 等 5V 信号线的瞬态保护。
- 工业控制与自动化设备的输入输出接口保护。
- 电源输入端及电源轨的浪涌抑制（5V 轨）。
- 通信设备、消费电子与测试仪器等对 ESD / 浪涌防护有要求的场合。
四、封装与安装建议
SOD-123FL 封装利于自动贴装与回流焊，建议：
- 将 TVS 尽量靠近受保护的接口或器件放置，缩短 PCB 上的走线长度，以降低感应电压。
- 在高频或高速信号线旁使用时注意走线阻抗控制，避免过多并联电容导致信号完整性问题。
- 对于双向或差分信号线，请确认器件极性与拓扑是否匹配，或选用对应的双向 TVS 产品。
五、可靠性与选型参考
SMF5V0TR 提供针对 5V 系统的快速、低漏电、强浪涌抑制能力。选型时可参考以下要点：
- 若系统工作电压或容忍钳位电压要求更低/更高，请对比 Vcl 与器件耐压规格。
- 对于更高能量的浪涌或更短脉冲（如 8/20 μs）情形，应核查相应波形下的 Ipp/Ppp 能力或并联更高能量的保护器件。
- 在严格的功耗限制场合，注意 Ir 对系统漏电影响；若需更低漏电，可查看同系列低漏型号。
综上，SMF5V0TR 以其与 5V 系统匹配的参数、良好的钳位性能和符合 IEC 61000-4-2 的 ESD 抗扰能力，适合用于需要小体积、低功耗且具备中等能量浪涌抑制能力的接口与电源保护场合。
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