WMSIC Electronic Components

ElecSuper DESD5V0U1BA-7-ES DESD5V0U1BA

ModelDESD5V0U1BA-7-ES
PackageSOD-323
BrandElec Super
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
Elec Super DESD5V0U1BA-7-ES
Type
ELECSUPER
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ELECSUPER
Electronic Component
DESD5V0U1BA-7-ES
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.026g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.8pF
Electronic Component
BM0227760147
Operating Temperature
40℃~+125℃
Voltage
20V
Electronic Component
IEC 61000-4-4;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.

DESD5V0U1BA-7-ES 产品概述

一、产品简介

DESD5V0U1BA-7-ES 是 ElecSuper(静芯微)推出的一款单路双向瞬态电压抑制(ESD)二极管,采用紧凑的 SOD-323 封装,专为保护敏感信号线免受静电放电(ESD)和电快速瞬变(EFT)损害而设计。器件针对 5V 级别系统优化,具有低结电容和高脉冲承受能力,适合用于各类接口和高速数据线的浪涌/静电防护。

二、主要性能特点

  • 钳位电压:典型 20V(在指定脉冲条件下的钳位性能,能有效限制瞬态电压对下游器件的冲击)。
  • 反向击穿电压(Vbr):6.5V(器件进入钳位工作的阈值)。
  • 反向工作电压(Vrwm):5V,推荐用于 5V 系统保护。
  • 峰值脉冲功率:400W(8/20µs 波形),能承受常见的脉冲能量。
  • 峰值脉冲电流(Ipp):15A(8/20µs)。
  • 漏电流(Ir):典型 1µA(在 Vrwm 下,保持低漏电利于电路静态功耗控制)。
  • 结电容(Cj):约 0.8pF(低电容设计,保证高速信号线的信号完整性)。
  • 通道数:单路;极性:双向(对称钳位,适合差分/双向信号)。
  • 工作温度范围:-40℃ 至 +125℃(满足汽车级/工业级环境需求)。
  • 符合防护标准:IEC 61000-4-2(ESD)和 IEC 61000-4-4(EFT)。

三、关键电气参数(要点)

  • 反向工作电压 Vrwm:5V(适用于 5V 电平线路保护)。
  • 击穿电压 Vbr:6.5V(器件进入导通以钳制瞬态时的触发电压)。
  • 钳位电压 Vc:20V(在指定脉冲电流下的保护电压峰值)。
  • 峰值功率 Ppp:400W(8/20µs),对应 Ipp = 15A。
  • 结电容:0.8pF(适合高速数据线,如 USB2.0/HDMI 辅助线、串行总线等的防护)。
  • 反向漏电流 Ir:1µA(低功耗系统友好)。

四、典型应用场景

  • USB、micro-USB、USB OTG、USB2.0 等 5V 接口的端口保护。
  • 智能手机、平板、便携式设备的信号线和外设接口防护。
  • 工业控制器、仪器仪表的低压信号保护(-40℃~+125℃ 工作温度适配苛刻环境)。
  • 串行通信接口(UART、I2C、SPI 辅助线)和音视频辅助线路的防静电保护。
  • 任何需要低电容且双向保护的单通道高速线路防护应用。

五、布局与使用建议

  • 尽量将 DESD5V0U1BA-7-ES 放置在被保护引脚的最靠近处,保护二极管与受保护节点之间的走线应尽可能短且宽,以降低感抗和寄生电阻。
  • 对地回流路径应保持短且直接,避免通过长回路或多层过孔回到地平面,以保证放电电流的有效引导。
  • 对于差分对或高速差分线,若需要同时保护两条线,应在两线间或对地采用合适的方案(双向器件可置于两线之间或线与地之间,视具体拓扑而定)。
  • 若系统需承受更大能量的浪涌或落地保护,建议与串联限流电阻或更高能量的浪涌保护器件配合使用,ESD 二极管不是高能持续雷击的替代品。

六、封装与可靠性

  • 封装:SOD-323,体积小、焊盘面积小,适合高密度板级布局及自动贴装生产。
  • 工作温度:-40℃ 至 +125℃,满足工业及部分汽车电子应用的温度要求。
  • 符合 IEC 61000-4-2/4-4 标准的抗干扰能力,适用于需要通过电磁兼容(EMC)认证的终端设备。

七、选型与注意事项

  • 型号与品牌:DESD5V0U1BA-7-ES(ElecSuper / 静芯微)。
  • 在保护 5V 及以下信号时,该器件为优选方案;若系统工作电压高于 5V,应选择对应更高 Vrwm 的器件。
  • 关注钳位电压与下游器件耐压的匹配:尽管钳位电压典型为 20V,但不同测试条件下可能有所差异,应参考完整的数据手册并在系统级进行验证。
  • 若系统对通断电容极其敏感(超低抖动或非常高速链路),请在样片验证中评估 0.8pF 对信号完整性的实际影响。

DESD5V0U1BA-7-ES 提供了在有限空间内兼顾低电容与高脉冲承受能力的平衡方案,适用于多种 5V 级别接口的板级静电与瞬态保护,是便携式与工业电子系统中常用的防护元件选择。若需详细参数曲线、典型波形与封装尺寸图,建议参考厂方数据手册或联系 ElecSuper 技术支持获取完整资料。

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