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DOWO SRV05-4 SRV05
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SRV05-4
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SRV05-4
- Electronic Component
- 1
- Package
- SOT-23-6L
- Electronic Component
- Electronic Component
- Type
- ESD
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.034g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Cj- Capacitor
- 0.6pF；0.3pF
- Electronic Component
- BM0258760018
- Voltage
- 12V
- Electronic Component
- IEC 61000-4-2
- Current(Ir)
- 1uA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SRV05-4 产品概述
一、产品简介
SRV05-4 是 DOWO（东沃）推出的一款四路单向静电放电（ESD）保护器件，采用 SOT-23-6L 封装，专为对敏感信号线和供电线提供高效瞬态浪涌保护而设计。器件响应速度快、漏电流低、钳位电压适中，适用于消费电子、通信接口及工业控制等场合的防护需求。
二、主要特性
- 单向（单极性）结构，适合保护有明确极性的电源或信号总线
- 反向截止电压（Vrwm）：5 V（工作耐压）
- 钳位电压：12 V（典型峰值钳位能力）
- 峰值脉冲电流（Ipp）：4.5 A @ 8/20 μs
- 峰值脉冲功率（Ppp）：60 W @ 8/20 μs（瞬态抑制能力）
- 反向泄漏电流（Ir）： ≤ 1 μA（在 Vrwm 下）
- 通道数：4 路独立保护通道
- 结电容（Cj）：典型值 0.6 pF 和 0.3 pF（用于区分不同测量条件或通道特性，适配高速信号）
- 防护等级：符合 IEC 61000-4-2 静电放电标准
- 封装：SOT-23-6L，兼顾尺寸与安装可靠性
三、电气性能说明
SRV05-4 在 8/20 μs 的浪涌波形下能承受 4.5 A 峰值冲击电流，整体峰值功率可达 60 W，钳位电压约 12 V，能在瞬态事件中有效将过电压钳位到安全水平，从而保护下游芯片免受破坏。低达 1 μA 的反向电流保证了在正常工作电压下不会造成显著的静态功耗。结电容极低（0.3–0.6 pF），对高速信号影响小，适用于 USB、串行接口、视频和差分信号线等应用。
四、典型应用场景
- USB、HDMI、MIPI 摄像头接口和其他高速数据线的 ESD 保护
- 移动设备、平板与笔记本的外部接口防护
- 工业控制与通信端口防雷击和静电放电
- IoT 终端、传感器模块的信号线/电源线保护
五、封装与布局建议
- 尽量将 SRV05-4 放置在靠近外部接口或可能受静电入口的位置，以缩短受保护节点到器件的走线长度。
- 将器件地端直接连接到系统地（或专用保护地），并采用多层过孔或短走线建立低阻抗回流路径。
- 对于高速差分信号，注意保持差分阻抗匹配，避免在保护器附近导致阻抗突变。
- 推荐采用标准无铅回流焊工艺，遵循 SOT-23-6L 的焊接温度曲线。
六、使用注意与可靠性
- 单向型 SRV05-4 适合有明确直流偏置的线路；用于双向信号线（无 DC 偏置）时请确认是否需要双向保护器件。
- 在高能量或重复浪涌环境下，请评估是否需要并联更高功率吸收器件或前置滤波/限流措施。
- 器件符合 IEC 61000-4-2 静电放电要求，能显著提升系统的电磁兼容性和可靠性。
SRV05-4 以其小体积、低电容和可靠的瞬态保护能力，为各种对速度和可靠性有要求的电子系统提供了成本效益高的保护方案。若需更详细的电气特性曲线、封装尺寸或推荐应用电路图，请参见厂商数据手册或联系供应商技术支持。
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