WMSIC Electronic Components

ElecSuper ESDA5V3L-ES ESDA5V3L

ModelESDA5V3L-ES
PackageSOT-23
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Elec Super ESDA5V3L-ES
Type
ELECSUPER
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ELECSUPER
Electronic Component
ESDA5V3L-ES
Electronic Component
1
Package
SOT-23
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.029g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
200pF
Electronic Component
BM0258779088
Voltage
15V
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.

ESDA5V3L-ES 产品概述

ESDA5V3L-ES 是 ElecSuper(静芯微)推出的一款针对 3.3V 系统的双路双向瞬态电压抑制(TVS)二极管。该器件以 SOT-23 小封装提供,专为接口和信号线的静电放电(ESD)与浪涌冲击保护而设计,适用于各种消费电子、通信和工业控制等对空间和保护性能有严格要求的场合。

一、主要特性

  • 极性:双向(bidirectional),适合保护双向信号或差分信号线。
  • 通道数:双路(双通道),可在单个封装中保护两条独立线路。
  • 工作膜电压 Vrwm:3.3V,针对 3.3V 供电系统及其接口优化。
  • 钳位电压(Vc):典型 15V,在冲击事件中能将过电压限制在可控范围。
  • 峰值脉冲电流 Ipp:30A(8/20µs 波形),能承受强脉冲注入。
  • 峰值脉冲功率 Ppp:450W(8/20µs),对短时大能量浪涌有良好吸收能力。
  • 击穿电压 Vbr:4V(标称),保证在超过工作电压时迅速进入导通状态。
  • 反向漏电流 Ir:1µA(典型),在正常工作下对电路影响小。
  • 结电容 Cj:约 200pF,需在高速信号线路选型时予以考虑。
  • 封装:SOT-23,体积小,便于 PCB 布局和自动贴装。
  • 防护等级:满足 IEC 61000-4-2 电磁放电测试规范(具体等级与整机测试相关,详见完整数据手册)。

二、电气性能要点

ESDA5V3L-ES 在 8/20µs 标准脉冲条件下可承受 30A 的峰值脉冲电流,峰值功率达到 450W,这意味着它能有效吸收外部的短时高能量冲击。双向结构使器件在正负极性冲击情况下均能工作,适合保护数据线与信号总线。200pF 的结电容在许多低速或中速接口上可接受,但对于要求极低寄生电容的高速差分信号(如高速 USB/高速串行链路)需谨慎评估。

三、典型应用场景

  • 3.3V 逻辑接口保护(GPIO、UART、I2C、SPI 等)
  • 消费类接口与连接器保护(例如低速 USB、线路输入/输出)
  • 通信设备的信号线与接口防护
  • 工业控制器与传感器信号的浪涌与静电防护
  • 需要双路独立保护但空间受限的模块化电路

四、PCB 设计与布局建议

  • 放置位置:TVS 器件应尽可能靠近被保护的连接器或外部引脚,以缩短导线感抗和减小环路面积。
  • 接地设计:若器件为对地夹位型,保证良好的接地平面,地线宽且短,优先使用多层板接地过孔。
  • 串联防护:在对高频性能有严格要求的线路上,可考虑在搭配低电容 TVS 或加入串联阻抗(如小电阻或共模电感)以优化信号完整性与保护平衡。
  • 熄灭抑制:器件吸收能量后可能产生热量,热设计与过流保护应纳入整体方案。

五、性能权衡与选型要点

  • 电容影响:200pF 的结电容对于音频、控制信号或低速总线通常无明显影响,但在高频差分或射频链路上会影响上升沿与时延,需要用更低 Cj 的 TVS。
  • 钳位电压:15V 的钳位能有效保护后级电路免受高电压冲击,但需确认后级元件能承受该电平短时脉冲。
  • 双路与双向设计:适合双线或差分信号保护,节省 PCB 空间并简化布局。
  • 能量承受能力:450W/30A 的能力适合常见的 ESD 与雷扰脉冲,应对日常及工业环境下的脉冲干扰有余。

六、封装与物理信息

器件采用 SOT-23 小型表贴封装,便于自动贴装与高密度 PCB 布局。SOT-23 的脚位安排与实际电路连接请参考器件完整封装图与 PCB 封装库文件,以确保引脚定义(例如是否共地或独立通道)与电路设计一致。

七、可靠性与合规性

ESDA5V3L-ES 标称符合 IEC 61000-4-2 ESD 防护规范(详细等级和测试条件请参照厂方完整数据手册)。在实际整机认证与 EMC 测试中,要配合良好的接地与布局策略才能达到规范要求。

八、使用与储存注意事项

  • 在生产与装配过程中应采取常规静电防护措施(ESD 手环、接地工作台等)。
  • 焊接时遵循 SMT 工艺规范,避免长时间高温暴露。详尽的回流曲线与焊接条件请参阅厂方应用说明。
  • 储存环境应干燥、通风,避免潮湿及强酸强碱气氛,长期存放建议按电子元件储存标准处理。

九、总结与建议

ESDA5V3L-ES 以其面向 3.3V 系统的 Vrwm、双路双向保护、以及 450W 的瞬态功率承受能力,是对接口与信号线进行高效保护的实用选择。若目标应用为低速或中速信号线、传感器与控制接口,该器件在性能与封装上具备较高性价比;若为超高速差分信号,请在选型时注意 200pF 的结电容对信号完整性的潜在影响,并考虑替代低电容 TVS 或额外的线路处理措施。欲获得完整电气图、封装细节与测试曲线,请参考厂方数据手册或联系 ElecSuper(静芯微)技术支持。

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