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DOWO PESD0402V05
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO PESD0402V05
- Type
- DOWO
- Minimum package
- 10000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- PESD0402V05
- Electronic Component
- 1
- Package
- 0402
- Electronic Component
- Electronic Component
- Type
- ESD
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.021g
- Electronic Component
- 1
- Channel Count
- Electronic Component
- Cj- Capacitor
- 0.05pF
- Electronic Component
- BM0230041552
- Operating Temperature
- 55℃~+125℃
- Voltage
- 40V
- Electronic Component
- IEC 61000-4-2
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
PESD0402V05 产品概述
一、产品简介
PESD0402V05 是 DOWO（东沃）推出的一款单路双向 ESD 防护二极管，采用微型 0402 封装。器件针对瞬态静电放电与脉冲过压事件进行快速钳位保护，符合 IEC 61000-4-2 防护等级要求，适用于对空间和电容要求严格的高速信号接口保护场合。
二、主要特性
- 钳位电压：40V（typ），在瞬态冲击时提供有效电压限幅。
- 反向截止电压（Vrwm）：5V，适配 5V 及以下工作电压的信号线。
- 结电容（Cj）：0.05pF，极低的寄生电容，非常适合高速差分或单端信号（如 USB/HDMI/MIPI 等）保护。
- 反向电流（Ir）：10nA，漏电极小，有利于低功耗和高阻抗电路。
- 极性：双向，能对正负极性瞬态同时钳位，免去极性判断。
- 通道数：单路；工作温度范围：-55℃ 至 +125℃，满足工业级温度需求。
- 封装：0402，极小尺寸，便于高密度 PCB 设计。
三、典型应用
- USB（含高速数据线）与通用 I/O 接口的 ESD 保护
- 摄像头、显示器等 MIPI/HDMI 辅助信号保护
- 通信模块、传感器接口与移动设备外部连接口
- 需要低电容、防静电的工业与消费电子设备
四、设计与布局建议
- 布局：将 PESD0402V05 放置在被保护接口与 PCB 引线之间，越靠近外部接口越好，以最小化走线电感与回路面积。
- 接地处理：若用于对地钳位，应确保器件附近有低阻抗接地平面并通过多条过孔与参考地相连。
- 布线长度：信号线到器件的走线应尽量短、宽，避免形成较大电感。
- 配合器件：对高能量冲击，可与串联电阻、差模共模电感或阻尼网络配合使用以提升系统耐受能量。
- 焊接与装配：0402 为微小封装，推荐按厂商建议的回流曲线进行焊接，防止 tombstoning 及焊接缺陷。
五、可靠性与使用注意
- 双向器件在对称瞬态时表现良好，但若长期并联在稳定直流电源（接近 Vrwm）上，应确认漏电与温升在可接受范围内。
- 在极端 ESD 水平（IEC 61000-4-2高阶测试）下，请参考整机试验结果以验证实际保护性能，必要时采用多级防护方案。
- 工作温度范围宽（-55℃~+125℃），适合工业与车规级边界应用，但在特殊严苛环境下建议进行系统级验证。
六、封装与选型建议
PESD0402V05 的 0402 微型封装适合对板面空间要求高且对电容敏感的场合。选型时关注 Vrwm 与系统工作电压的匹配（本品 Vrwm=5V），以及是否需要双向钳位。型号采购可按品牌 DOWO（东沃）和完整料号进行索取，并向供应商确认回流工艺细节与卷带包装信息。
总结：PESD0402V05 以其极低结电容（0.05pF）、低漏电（10nA）、适配 5V 信号和工业级温度范围，为高速数据线和空间受限电路提供可靠的 ESD 防护方案，是对高速接口保护需求较高场景的优选元件。
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