WMSIC Electronic Components

Leiditech ESDA05

ModelESDA05
Package0603
BrandLeiditech
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
Leiditech ESDA05
Type
LEIDITECH
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LEIDITECH
Electronic Component
ESDA05
Electronic Component
1
Package
0603
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.05g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
5pF
Electronic Component
BM0264463870
Voltage
25V
Electronic Component
IEC 61000-4-2
Current(Ir)
10nA

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

ESDA05 ESD二极管产品概述

一、产品简介

ESDA05 是 Leiditech(雷卯电子)推出的一款单路双向 ESD 二极管,封装为业界通用的 0603。该器件针对接口信号线的静电放电(ESD)保护进行了优化,体积小、响应速度快,适合对 PCB 布局空间和信号完整性有严格要求的便携式和消费类电子设备。

二、主要参数

  • 极性:双向(bidirectional),可在信号线上双向吸收瞬态脉冲,无需区分正负向接法。
  • 反向截止电压 Vrwm:5.5 V,适配 5V 及以下工作电压环境(如 USB、I/O 接口等)。
  • 钳位电压:25 V(典型值),在突发过压时将电压钳制于安全范围内以保护下游电路。
  • 反向电流 Ir:10 nA(在 Vrwm 条件下),低漏电利于功耗敏感电路。
  • 结电容 Cj:5 pF,属于低电容水平,对高速差分信号线(USB、MIPI、LVDS 等)干扰小。
  • 通道数:单路,适用于单条数据或控制信号的保护。
  • 类型:ESD 专用二极管。
  • 防护等级:符合 IEC 61000-4-2 ESD 防护要求(设计用于满足该标准的静电放电防护)。

三、工作原理与主要特性

ESDA05 属于瞬态抑制二极管系列,在正常工作电压下呈高阻态,漏电小;当外部发生静电放电或瞬态高压时,器件瞬时导通,将脉冲能量通过本体耗散或导入地线,从而钳制电压峰值,保护后续电路元件。双向结构适合差分或双向数据线,使用更灵活。

四、典型应用场景

  • USB、Micro-USB、Type-C 数据线保护(特别是对 5V 及以下信号线)。
  • 智能手机、平板、可穿戴设备的外部接口防护。
  • 工业控制模块、传感器接口、通信端口的静电防护。
  • 任何对封装尺寸和寄生电容有严格要求的高速信号防护场合。

五、布局与使用建议

  • 器件应尽量靠近被保护的连接器或输入端放置,降低走线寄生感抗和回路面积。
  • 保持两端走线尽可能短且宽,避免通过长走线引入额外寄生。
  • 对于多层板,建议保护器件的地端使用多点接地或直插地孤岛并设置多条过孔与地层相连,以便快速释放能量。
  • 在差分线保护时,应放置在差分对共模路径或按设计要求分别保护每路线。

六、可靠性与封装说明

0603 封装适合自动贴装与回流焊工艺,便于批量生产。器件设计考虑了在 IEC 61000-4-2 条件下的抗 ESD 能力与长期稳定性,建议遵循厂商推荐的回流温度曲线与湿度敏感等级(MSL)来保证焊接可靠性。

七、选型与替代建议

若系统对钳位电压或冲击能量有更高要求,可考虑选择钳位电压更低或额定能量更大的 TVS 器件;对超高速接口可优先选用更低结电容(<2 pF)的型号。选型时应平衡 Vrwm、Cj 与钳位能力,以兼顾信号完整性与保护效果。

八、注意事项

  • 芯片在长期高温或频繁大能量放电下可能退化,设计时应预留可靠性裕度。
  • 对于关键数据线路,建议配合 PCB 保护策略(滤波、共模扼流圈等)形成综合防护。
  • 焊接和储存要遵循雷卯电子提供的规范,以避免封装损伤或吸湿造成焊接缺陷。

如需 ESDA05 的完整数据手册(包括最大瞬态脉冲参数、典型击穿曲线和回流焊温度曲线),建议联系 Leiditech(雷卯电子)或其授权分销渠道获取原厂资料以便进一步设计验证。

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