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HXY MOSFET SMF30CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- HXY MOSFET SMF30CA
- Type
- HXY MOSFET
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HXY MOSFET
- Electronic Component
- SMF30CA
- 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
- BM0257710727
- Voltage
- 48.4V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 33.3V；36.8V
- 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.
SMF30CA 产品概述
一、产品简介
SMF30CA 是华轩阳电子（HXY MOSFET）推出的双向瞬态电压抑制器（TVS），采用 SOD-123FL 小尺寸贴片封装。器件针对电源轨和信号线的瞬态过压冲击设计，能够在短时间内吸收能量脉冲，保护下游电路免受浪涌、开关瞬变及雷击感应等危险。封装小巧，适合空间受限的消费电子与工业终端应用。
二、主要特性
- 极性：双向（适合双向瞬态抑制，无极性安装要求）
- 反向截止电压 Vrwm：30 V（典型工作电压上限）
- 击穿电压 Vbr：33.3 V ～ 36.8 V（击穿区间）
- 钳位电压 Vc：48.4 V（在指定峰值脉冲电流下的典型钳位）
- 峰值脉冲电流 Ipp：4.1 A（单次脉冲条件下）
- 峰值脉冲功率 Ppp：200 W（典型测试条件下）
- 反向泄漏电流 Ir：1 μA（在 Vrwm 条件下的典型值）
三、典型应用
- 24 V 工业与汽车电子电源线浪涌保护（适用于需要 30 V 额定工作电压的场景）
- 数据与通信接口保护（如某些总线、控制信号线路）
- 电源输入和电源管理模块的瞬态抑制
- 消费类电子、小型电源适配器和便携设备的雷击/开关干扰防护
四、主要电气参数说明
SMF30CA 的 Vrwm = 30 V 表示在该直流工作电压下器件保持截止状态；当电压上升并进入击穿区（33.3–36.8 V）后，器件导通并在峰值脉冲电流 4.1 A 下将电压钳制在约 48.4 V，以保护后级电路。Ppp = 200 W 表示在厂方测试条件下器件可吸收的瞬态功率峰值，注意此值通常基于特定脉冲波形（请以完整数据手册中的测试脉冲参数为准）。
五、封装与安装
SOD-123FL 为小型表贴封装，适合自动贴装与回流焊流程。建议布局时将 TVS 靠近被保护的接口或电源输入，走线尽可能短且粗，以降低印制板寄生电感，提高保护性能。双向器件无需极性区分，但仍应按数据手册推荐的焊盘尺寸和回流曲线进行装配。
六、选型与注意事项
- 若系统工作电压接近或高于 30 V，应选用更高 Vrwm 的型号以避免误导通。
- 针对重复性浪涌或长脉冲，应参考完整数据手册中关于功率等级、脉冲波形（如 8/20 μs 或 10/1000 μs）及重复间隔的说明，必要时选择更高能量容量的器件。
- 注意反向泄漏 Ir 在高温下可能上升，需在热设计中考虑。
- 对于精密信号线或高速差分对，需评估 TVS 的电容影响（数据手册通常给出器件电容值）。
七、可靠性与测试建议
在实际应用前建议在典型电路条件下进行脉冲测试与系统级验收试验，包括单次与重复脉冲、不同波形以及温度循环测试，以验证钳位电压、残压以及长期可靠性。装配时采取静电防护措施，遵循回流焊规范，确保焊点可靠。
如需最终的电气特性曲线、脉冲测试条件和焊接工艺参数，请参考华轩阳电子的完整数据手册或向供应商索取样片进行评估。
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