WMSIC Electronic Components

DOWO ESD5311X

ModelESD5311X
PackageDFN1006-2L
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
DOWO ESD5311X
Type
DOWO
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
ESD5311X
Electronic Component
1
Package
DFN1006-2L
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.009g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.3pF
Electronic Component
BM0230827002
Voltage
22V
Electronic Component
IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
500nA

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

ESD5311X 产品概述

一、概述

ESD5311X 是 DOWO(东沃)推出的一款单路、双向 TVS 晶体管,适用于对低压信号线或电源线进行瞬态电压抑制保护。该器件采用小型 DFN1006-2L 封装,针对要求高带宽、低寄生电容且需要通过 IEC ESD/浪涌标准验证的应用场景进行了优化。

二、主要技术参数

  • 类型:TVS(瞬态电压抑制器),单路、双向
  • 钳位电压(Vc):22 V
  • 击穿电压(Vbr):7.5 V(典型)
  • 反向截止电压(Vrwm / 工作电压):5 V
  • 峰值脉冲功率(Ppp):80 W @ 8/20 μs(IEC 61000-4-5)
  • 峰值脉冲电流(Ipp):4 A @ 8/20 μs
  • 结电容(Cj):0.3 pF(极低电容,适合高速信号)
  • 反向电流(Ir):500 nA(典型)
  • 防护等级:符合 IEC 61000-4-5(浪涌)和 IEC 61000-4-2(静电放电)要求
  • 封装:DFN1006-2L

三、性能特点

  • 低结电容(0.3 pF):对高速差分或单端信号(如 USB、HDMI、Camera MIPI 等)影响极小,保持信号完整性。
  • 双向保护:可在正反方向对称工作,适用于没有明确参考极性的信号线或差分对。
  • 高瞬态承受能力:80 W 峰值功率和 4 A 峰值电流(8/20 μs)能有效吸收常见的浪涌与脉冲干扰。
  • 低漏电流:500 nA 的反向电流有助于在低功耗系统中保持静态功耗低。
  • 小型封装:DFN1006-2L 适合空间受限的移动设备与嵌入式 PCB 布局。

四、典型应用

  • USB、串口、摄像头接口等 5 V 及以下信号线保护
  • 手机、平板、笔记本等消费电子外部接口防护
  • 工业控制、物联网终端的 I/O 保护
  • 任何要求低电容、高速信号一致性同时需要 ESD/浪涌保护的场合

五、封装与 PCB 布局建议

  • 器件应尽量靠近受保护的连接器或接口放置,缩短输入走线,减小串联电感与阻抗。
  • 在 DFN1006-2L 的底部焊盘附近设置良好的地平面或接地铜箔,确保浪涌能量被快速导入接地。
  • 对于高能量抑制路径,建议在地平面处使用多过孔(vias)以降低回流阻抗(若 PCB 双面或多层)。
  • 避免在器件与保护目标之间并联过长的走线、滤波器或大电感元件,以免削弱保护效果。

六、使用注意事项

  • Vrwm = 5 V:确保待保护线路的正常工作电压不超过 5 V;若系统存在较高静态电压,应选择相应耐压等级的保护器件。
  • 钳位电压 22 V:在大电流脉冲时器件钳位电压可达到此值,需确认下游电路能承受短时此类电压峰值或在系统中采取额外吸收/限流措施。
  • 单路器件:若需保护多条信号线,可选用多路 TVS 阵列或并用多个单路器件。
  • 结合系统布局及 EMC 要求,必要时配合滤波器、阻尼与线路隔离设计以达到最佳抑制效果。

七、合规与可靠性

ESD5311X 已针对 IEC 61000-4-2(静电放电)和 IEC 61000-4-5(浪涌)进行了设计,具备工业级瞬态抑制能力。在实际产品认证过程中,应与整机测试结果结合评估,验证器件在特定 PCB 布局与工作条件下的可靠性。

如需详细资料(电气特性曲线、封装尺寸图、推荐焊盘样式或样品测试数据),可联系 DOWO(东沃)或器件供应商获取完整数据手册。

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