WMSIC Electronic Components

LRC LESD11D12CAT5G

ModelLESD11D12CAT5G
PackageDFN0603
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 LESD11D12CAT5G
Type
LRC
Minimum package
15000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
LESD11D12CAT5G
Electronic Component
1
Package
DFN0603
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
1g
Electronic Component
1
Cj- Capacitor
9pF
Electronic Component
BM0264880200
Voltage
19V
Current(Ir)
100nA
Voltage(VBR)
13V
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.

LESD11D12CAT5G ESD保护二极管产品概述

乐山无线电(LRC)推出的LESD11D12CAT5G是一款专为低电压敏感电子设备设计的双向ESD保护二极管,核心定位为消费电子、IoT终端及便携设备的接口级静电防护,凭借紧凑封装与均衡的电气性能,成为高密度电路设计的优选器件之一。

一、产品定位与核心应用场景

LESD11D12CAT5G针对12V以内工作电压的信号/电源接口提供双向ESD防护,适配场景包括:

  • 消费电子:智能手机、平板电脑的USB接口、音频接口、HDMI接口防护;
  • IoT终端:智能穿戴、智能家居传感器的数据传输端口防护;
  • 便携设备:移动电源、蓝牙耳机的充电/通信接口防护。 其双向极性设计无需区分信号正负极,可直接并联于双向传输的接口电路(如USB Type-C),简化PCB布局与电路设计。

二、关键电气参数解析

该器件的电气参数针对ESD防护场景做了精准优化,核心参数及意义如下:

  1. 极性与工作电压:双向极性,反向截止电压(Vrwm)12V——支持信号双向传输,且在12V直流工作电压下保持截止状态,不干扰电路正常运行;
  2. 击穿与钳位特性:击穿电压(Vbr)13V(典型值)、钳位电压19V(@Ipp=9A)——击穿电压略高于工作电压,确保正常工作时不导通;ESD脉冲冲击时,快速导通并将电压钳位在19V以内,远低于多数IC的静电损坏阈值(通常≥20V);
  3. 脉冲耐受能力:峰值脉冲电流(Ipp)9A(8/20μs波形)——符合IEC 61000-4-2标准的ESD防护要求(接触放电8kV、空气放电15kV对应的脉冲电流量级),可有效抵御人体/设备静电冲击;
  4. 漏电流与结电容:反向漏电流(Ir)100nA(@Vrwm=12V)、结电容(Cj)9pF——极低漏电流不增加电路静态功耗,适合电池供电设备;9pF结电容兼顾防护与信号完整性,适配USB2.0、音频等中等速率信号接口(速率≤480Mbps)。

三、封装与可靠性设计

LESD11D12CAT5G采用DFN0603封装(尺寸约1.6mm×0.8mm×0.5mm),具有以下优势:

  • 小型化:与0603贴片电阻/电容尺寸兼容,适合高密度PCB布局(如智能手机内部接口);
  • 低寄生参数:DFN无引脚封装设计,寄生电感与电阻显著低于传统SOT-23封装,ESD响应速度更快(ns级);
  • 可靠性:LRC成熟的封装工艺确保焊接可靠性(符合IPC标准),且器件可在-55℃~150℃温度范围内稳定工作,适配工业级与消费级场景的环境要求。

四、应用优势与注意事项

(1)核心应用优势

  • 双向防护简化设计:无需双管串联即可实现双向ESD防护,减少PCB占用面积与BOM成本;
  • 低功耗适配:100nA漏电流对低功耗设备(如智能手环)的待机功耗影响可忽略;
  • 高性价比:LRC作为国内主流半导体厂商,该器件兼具性能与成本优势,适合量产需求。

(2)注意事项

  • 需并联于被保护电路的信号/电源端与地之间,确保地端连接可靠;
  • 结电容9pF不适合高速信号(如USB3.0、HDMI2.0),此类场景需选择低电容(≤1pF)的ESD器件;
  • 焊接时需遵循DFN封装的回流焊工艺要求,避免虚焊或封装损伤。

五、选型参考

若需替换或拓展,可参考以下参数匹配原则:

  • 核心参数兼容:Vrwm≥12V、钳位电压≤20V、Ipp≥8A、Cj≤10pF;
  • 同封装替代:如LRC的其他DFN0603封装ESD管(如LESD11D05CAT5G),需调整工作电压匹配;
  • 跨品牌替代:需确认参数与封装的兼容性,避免性能不达标或布局冲突。

综上,LESD11D12CAT5G是一款针对12V低电压接口的高性价比双向ESD保护器件,其均衡的电气性能与小型化封装,可满足多数消费电子与IoT设备的静电防护需求。

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