WMSIC Electronic Components

DOWO PESD5V0L1BA

ModelPESD5V0L1BA
PackageSOD-323
BrandDOWO
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
DOWO PESD5V0L1BA
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
PESD5V0L1BA
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.027g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0230654935
Operating Temperature
40℃~+85℃
Voltage
18V
Current(Ir)
1uA
Voltage(VBR)
6V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

PESD5V0L1BA 产品概述

一、产品简介

PESD5V0L1BA(品牌:DOWO/东沃)是一款单路、双向的瞬态电压抑制(ESD)二极管,封装为SOD-323,专为保护 5V 及以下电压线路免受静电放电和浪涌脉冲损伤而设计。该器件在工作状态下表现出低漏电、高钳位能力与紧凑封装,适合对体积与成本有严格要求的消费电子和通信设备。

二、主要参数

  • 极性:双向(双向导通,适合信号线或双向供电)
  • 反向截止电压 Vrwm:5V(适配5V工作电压)
  • 击穿电压(Vz):6V(典型)
  • 钳位电压:18V(峰值钳位,建议在选型时留裕度)
  • 峰值脉冲电流 Ipp:16A
  • 峰值脉冲功率 Ppp:250W(典型,测试条件请参见厂方数据手册)
  • 反向电流 Ir:1μA(Vrwm下,低漏电)
  • 通道数:单路
  • 工作温度范围:-40℃ 至 +85℃
  • 类型:ESD保护二极管(瞬态抑制)
  • 封装:SOD-323(小型表面贴装)

三、产品特点与优势

  • 双向设计:无需极性方向,可直接并联在需保护的双向数据/电源线上,便于设计与替换。
  • 低漏电流:在 5V 工作电压下漏电仅 1μA,有利于低功耗应用。
  • 高能量吸收能力:16A 峰值脉冲电流与 250W 峰值功率,在典型 ESD/浪涌事件中提供有效钳位保护。
  • 微型封装(SOD-323):节省 PCB 空间,适合小型便携设备与高密度布局。

四、典型应用场景

  • USB、I2C、UART 等 5V 或低压数字信号接口的防护;
  • 便携式设备、智能终端、路由器与通信模块的接口防护;
  • 工业控制与消费电子中对静电或短时浪涌要求较高但温度范围在 -40〜85℃ 的场合;
  • 任何需在空间受限位置实现单通道 ESD 保护的电路。

五、选型与布局建议

  • 验证钳位电压:确保 18V 钳位不会对被保护器件造成损伤;若敏感器件承受能力低,应选用更低钳位器件或添加级联保护。
  • 考虑脉冲能量:若系统可能承受大于 250W 的浪涌或更长期的过电流,应评估并采用更高能量等级的 TVS 或外部限流措施。
  • PCB 布局:将器件靠近受保护的连接器或输入端放置,走线尽量短且粗,接地良好以降低回流路径阻抗;对接地平面使用足够的过孔以减少感抗。
  • 焊接与可靠性:SOD-323 为常见贴片封装,遵循厂家推荐回流焊温度曲线,避免过热导致器件性能退化。

六、使用注意事项

  • 厂家数据表细读:Ppp、Ipp 的测试波形(如 8/20μs)和测试条件可能影响实际耐受能力,选型时请参照完整数据手册。
  • 环境适配:工作温度覆盖 -40~+85℃,若需更宽温度或汽车级可靠性,请选择具备相应认证的型号。
  • 双向特性:双向 TVS 在一定偏置下不会单向钳制直流电压,适合双向信号,但若用于单向电源线,需确认是否为最佳选择。

七、结论

PESD5V0L1BA 是一款面向 5V 等级接口的经济且体积小巧的双向 ESD 保护器件,具备低漏电、高脉冲吸收能力和方便的 SOD-323 封装,适合多数消费电子与通信接口防护应用。在最终设计中,应结合实际浪涌能量、钳位容忍度与 PCB 布局原则,参考厂家完整数据手册以确保可靠性。

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