WMSIC Electronic Components

Leiditech ESD9D3V3C

ModelESD9D3V3C
PackageSOD-923
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 Electronic Component

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Leiditech ESD9D3V3C
Type
LEIDITECH
Minimum package
8000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LEIDITECH
Electronic Component
ESD9D3V3C
Electronic Component
1
Package
SOD-923
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.004g
Electronic Component
1
Cj- Capacitor
18pF
Electronic Component
BM0230104287
Voltage
19V
Electronic Component
IEC 61000-4-2
Current(Ir)
2.5uA
Voltage(VBR)
5V
Electronic Component
Electronic Component

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

ESD9D3V3C 产品概述

一、概述

ESD9D3V3C 是 Leiditech(雷卯电子)推出的一款面向 3.3V 信号防护的瞬态电压抑制二极管(TVS),封装为 SOD-923,适用于高密度 PCB 和便携式终端的静电放电(ESD)保护。器件针对快速脉冲、静电和感性开关瞬变提供单向保护,常用于 I/O 接口、数据线和低压电源路径的保护电路中。

二、主要电气参数

  • 反向截止电压 Vrwm:3.3 V(适配 3.3V 工作电压环境)
  • 击穿电压 Vbr(最小值):5 V
  • 钳位电压(典型):19 V(在峰值脉冲条件下测得)
  • 峰值脉冲电流 Ipp:2.3 A(8/20 μs 波形)
  • 反向静态电流 Ir:2.5 μA(在 Vrwm 下)
  • 结电容 Cj:18 pF(适合高速信号线、对信号完整性影响小)
  • 防护等级:满足 IEC 61000-4-2 静电放电抗扰度要求

三、性能亮点

  • 专为 3.3 V 信号线设计的反向截止电压,能在正常工作下保持低漏流。
  • 在 8/20 μs 脉冲下可承受 2.3 A 峰值浪涌,对常见的人体模型(HBM)和接触放电场景有良好缓冲能力。
  • 钳位电压约 19 V,可在瞬态事件中将电压钳制到安全水平,保护后端电路不被过压损坏。
  • 结电容仅 18 pF,适合对带宽和上升时间有要求的高速数据信号防护,降低对信号完整性的影响。
  • SOD-923 小型封装,有利于高密度布板和自动贴装生产。

四、典型应用

  • 智能手机、平板等移动终端的外设数据线保护(I/O、按键接口)
  • 3.3V 电平的串口、SPI、I2C 等通信总线防护
  • USB 子板、摄像头模块、传感器接口及其他外接设备的瞬态抑制
  • 工业控制器、仪表中对静电和浪涌的局部保护

五、布局与使用建议

  • 将 TVS 器件靠近受保护的连接器或信号入口放置,阳极(或地)引脚应尽可能短且直接接地以降低环路电感。
  • 对于高速差分信号,评估 18 pF 电容对阻抗和眼图的影响,必要时在 PCB 布局上优化走线和阻抗匹配。
  • 在焊接和回流工艺中,按 SOD-923 的推荐温度曲线和湿敏等级规范操作,避免超过制造商给出的焊接温度限制。
  • 产品防护等级参考 IEC 61000-4-2,实际系统级抗扰性需在整机环境下做完整测试验证。

六、选型与订购

型号:ESD9D3V3C
品牌:Leiditech(雷卯电子)
封装:SOD-923
在选型时,请确认系统的最大允许钳位电压、所需承受的浪涌电流规格及对结电容的容忍度;必要时联系供应商获取器件的完整 IV 曲线、钳位曲线和封装尺寸图,以便在设计和信赖性评估中使用。

如需样片、详细数据手册或环境/可靠性测试数据,可以向 Leiditech 及其代理商咨询获取。

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