WMSIC Electronic Components

LRC LESD9D3.3CT5G

ModelLESD9D3.3CT5G
PackageSOD-923
BrandLRC
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
LRC LESD9D3.3CT5G
Type
LRC
Minimum package
8000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
LESD9D3.3CT5G
Electronic Component
1
Package
SOD-923
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.011g
Electronic Component
1
Cj- Capacitor
25pF
Electronic Component
BM0230029638
Operating Temperature
40℃~+125℃
Voltage
14.1V
Electronic Component
IEC 61000-4-4;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.

LESD9D3.3CT5G 产品概述

一、产品简介

LESD9D3.3CT5G 是乐山无线电(LRC)推出的一款双向瞬态电压抑制器(TVS)——ESD 二极管,专为 3.3V 工作电压的接口及信号线提供静电放电和瞬态浪涌保护。器件封装为 SOD-923,体积小、易于贴片,适合集成在空间受限的移动设备、通信终端和工业控制板上。

二、主要特性

  • 极性:双向(适合双向信号线与可双向变幅的接口)
  • 反向截止电压 Vrwm:3.3V(适配 3.3V 系统工作点)
  • 钳位电压:14.1V(在指定脉冲条件下)
  • 峰值脉冲电流 Ipp:11.2A @ 8/20µs
  • 峰值脉冲功率 Ppp:158W @ 8/20µs
  • 击穿电压 Vbr:约 5V
  • 反向电流 Ir:1µA(典型,低漏电利于低功耗应用)
  • 结电容 Cj:25pF(对高频信号影响较小)
  • 工作温度范围:-40℃ ~ +125℃
  • 防护等级:满足 IEC 61000-4-2(ESD)与 IEC 61000-4-4(EFT)测试要求

三、电气性能重点说明

该器件在 8/20µs 波形下能承受 11.2A 的峰值冲击电流,配合 14.1V 的钳位电压能在大多数瞬态事件中把能量限制在安全范围内;低至 1µA 的反向漏电保证对电源和高阻态电路影响小;25pF 的结电容使其适用于多数数据信号线,但对极高频率或超高速差分信号仍需评估是否满足系统带宽要求。

四、封装与安装建议

SOD-923 小封装利于贴片自动化生产。为了获得最佳防护效果,应将 LESD9D3.3CT5G 放置于靠近被保护接口或连接器处、走线最短且回流路径宽短的版图位置;接地垫应尽可能靠近器件并通过足够数量的过孔与主地平面相连,减少寄生感抗与回流环路面积。

五、典型应用场景

  • MCU/FPGA 等 3.3V I/O 口的静电与浪涌保护
  • 串口、I2C、SPI、UART 等双向数据线保护
  • 工业控制接口、传感器线路、通信模块的前端保护
  • 需满足 IEC ESD/EFT 抗扰度的电子产品

六、可靠性与使用注意

在高能量冲击环境或反复冲击工况下,应评估器件的累积功耗承受能力并结合系统熔断或限流措施。焊接建议采用符合工业回流曲线的工艺,避免超出制造商给定的温度-时间规范。存储与使用时注意防潮、防静电,避免长期在极限温度或高湿环境下工作导致性能漂移。

若需更详细的电气特性曲线、焊接规范或参考电路图,请提供进一步需求,我可基于 LRC 官方资料为您整理完整技术数据手册要点与实际布局示意。

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