WMSIC Electronic Components

LRC LESD8D5.0CN3T5G

ModelLESD8D5.0CN3T5G
PackageSOT-883
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LRC LESD8D5.0CN3T5G
Type
LRC
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
LESD8D5.0CN3T5G
Electronic Component
1
Package
SOT-883
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.009g
Electronic Component
1
Cj- Capacitor
15pF
Electronic Component
BM0264777642
Voltage
12.5V
Electronic Component
IEC 61000-4-2
Current(Ir)
500nA
Voltage(VBR)
5.6V

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

LESD8D5.0CN3T5G 产品概述

一、主要特点

LESD8D5.0CN3T5G 是 LRC(乐山无线电)出品的一款双路双向ESD保护二极管,专为5V系统的数据/信号线瞬态保护设计。器件在瞬态冲击下具有快速钳位能力和低漏电特性,可有效吸收静电放电和脉冲浪涌能量,适用于接口保护和板级防护。

二、关键参数

  • 极性:双向(bidirectional)
  • 工作反向截止电压 Vrwm:5 V
  • 击穿电压 VBR:5.6 V
  • 钳位电压 Vc(典型):12.5 V
  • 峰值脉冲电流 Ipp:5.5 A
  • 峰值脉冲功率 Ppp:69 W(瞬态额定,常以8/20 μs波形参考)
  • 反向漏电流 Ir:500 nA
  • 结电容 Cj:15 pF(单通道典型)
  • 防护等级:符合 IEC 61000-4-2 静电放电防护要求
  • 类型:ESD 二极管(双路,SOT-883 封装)

三、封装与引脚

封装:SOT-883(小型塑封),适合空间受限的移动设备与消费类电子板级防护。器件内部为双路保护结构,每路为双向TVS配置,便于同时保护两组差分或独立信号线。

四、典型应用

  • USB、HDMI、DP 等5V信号接口的ESD保护
  • 手机、平板、笔记本等便携设备的I/O口防护
  • 摄像头模块、触摸屏与按键接口的静电防护
  • 工业控制及仪表的现场接口防护(需结合系统电平评估)

五、使用建议与注意事项

  • 本器件为瞬态保护元件,不可用于持续限流或替代稳压器;长期承受高于 Vrwm 的直流偏置会加速器件损耗。
  • 结电容约15 pF,可能对高速接口(例如超高速差分信号)造成信号完整性影响,使用前应评估对带宽的影响。
  • 钳位电压12.5 V 为瞬态钳位值,保护能量有限,若系统可能遭受更高能量的雷击或浪涌,应并联更高能量吸收元件或采用多级保护方案。
  • 双向结构适合差分或双向数据线,若用于单向电源线上,应确认极性与接法。

六、典型电路与PCB布局建议

  • 器件应尽量靠近被保护的连接器或信号源放置,布线尽量短且宽,减少串联电感。
  • 保护端与地之间应提供低阻抗回流路径,建议在器件附近设置足够铜箔面积并通过多孔过孔连接至地平面以利散热与回流。
  • 若保护高频或高速接口,建议在器件前端加入小阻值阻尼或匹配电阻以减小反射与振铃。
  • 焊盘设计应遵循SOT-883推荐尺寸,并保证良好焊接以利热耗散。

七、可靠性与选型提示

  • LESD8D5.0CN3T5G 符合 IEC 61000-4-2 静电放电标准要求,适用于常见接触式与空放式ESD事件防护。
  • 选型时应综合评估系统工作电压、允许最大漏电、信号带宽与可接受的钳位电压,若系统对漏电和电压摆幅敏感,可考虑低容值或更低漏电的替代型号。
  • 对于需要更高能量吸收能力或防雷等级的系统,应采用级联TVS或增加浪涌保护器(SPD)以满足更严格的浪涌规范。

如需样品参数曲线、封装尺寸图或与其它保护方案的对比建议,可提供具体应用场景(例如接口类型和信号速率),以便给出更精确的布局与选型建议。

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