WMSIC Electronic Components

LRC LESD11D3.3CBT5G

ModelLESD11D3.3CBT5G
PackageDFN0603-2
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
LRC LESD11D3.3CBT5G
Type
LRC
Minimum package
15000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
LESD11D3.3CBT5G
Electronic Component
1
Package
DFN0603-2
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.007g
Electronic Component
1
Cj- Capacitor
22pF
Electronic Component
BM0264993149
Voltage
9V
Current(Ir)
50nA
Voltage(VBR)
6.5V
Electronic Component
Electronic Component
Electronic Component
15000

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

LESD11D3.3CBT5G ESD防护二极管产品概述

乐山无线电(LRC)推出的LESD11D3.3CBT5G是一款专为3.3V系统设计的ESD防护二极管,核心功能是快速泄放静电脉冲,保护敏感电子元件免受ESD损坏,广泛应用于消费电子、IoT设备等高密度小型化产品中。

一、产品核心定位与功能

作为ESD防护专用器件,LESD11D3.3CBT5G的核心逻辑是:静电事件发生时,以极低阻抗导通,将脉冲电流引至地,同时钳位被保护端口电压至安全范围,避免敏感芯片(如MCU、传感器、通信模块)因过压击穿。其适配3.3V电源系统,是该电压域内设备静电防护的高性价比选择。

二、关键电气参数深度解析

该产品参数经过优化,平衡了防护性能与系统兼容性:

  • 反向截止电压(Vrwm=3.3V):正常工作时二极管反向偏置的最大允许电压,完全匹配3.3V系统电源,确保待机/工作时二极管截止,不干扰电路运行。
  • 钳位电压(Vc=9V):ESD脉冲峰值时的端口电压,是防护核心——当前主流芯片IO口耐压多在5V~10V之间,9V钳位既避免芯片击穿,又不会因电压过高增加风险。
  • 峰值脉冲电流(Ipp=10A):单次ESD脉冲承受的最大电流,符合IEC 61000-4-2 Level 4(±15kV接触放电)要求,可应对日常静电冲击(如人体接触放电)。
  • 击穿电压(Vbr=6.5V):反向电压超6.5V时开始导通,介于截止电压与钳位电压之间,既保证正常工作不导通,又能ns级响应ESD脉冲。
  • 反向漏电流(Ir=50nA):截止状态漏电流极小,远低于μA级,不增加系统静态功耗,对低功耗设备(如可穿戴)友好。
  • 结电容(Cj=22pF):信号线上的寄生电容,适合100Mbps以下速率(如USB 2.0、蓝牙、传感器数据),不明显影响信号完整性。

三、封装与物理特性

该产品采用DFN0603封装(用户标注明确),尺寸仅0.6mm×0.3mm×0.3mm(典型值),属于超小型封装,适配高密度PCB设计(如智能手机主板、可穿戴设备)。封装符合无铅无卤环保要求(RoHS指令),散热性能良好,可应对多次脉冲冲击后的热量累积。

四、品牌与可靠性保障

乐山无线电(LRC)是国内半导体老牌厂商,拥有多年分立器件研发制造经验,产品通过ISO9001、IATF16949(汽车电子)认证。LESD11D3.3CBT5G可靠性测试包括:

  • 符合IEC 61000-4-2 ESD Level 4标准;
  • 1000次以上脉冲冲击后,漏电流、钳位电压无明显变化;
  • 工作温度范围宽(-55℃~150℃),覆盖工业级与消费级场景。

五、典型应用场景

因小封装、适配3.3V的特性,该产品广泛用于:

  1. 消费电子:智能手机/平板的USB Type-C、音频接口、SIM卡槽;
  2. 可穿戴设备:智能手表、手环的充电触点、传感器接口;
  3. IoT设备:智能家居(门锁、温湿度传感器)、智能家电控制端口;
  4. 通信设备:路由器、WiFi模块的天线接口、RJ45网口。

六、产品优势总结

LESD11D3.3CBT5G的核心优势在于:小封装高密度适配、低漏电流低功耗、精准钳位电压、高脉冲耐受能力,完美匹配3.3V系统静电防护需求,是替代进口同类产品的高性价比选择。

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