WMSIC Electronic Components

Leiditech LM-ULC0544P10

ModelLM-ULC0544P10
PackageDFN2510-10
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Leiditech LM-ULC0544P10
Type
LEIDITECH
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LEIDITECH
Electronic Component
LM-ULC0544P10
Electronic Component
1
Package
DFN2510-10
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.038g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.45pF
Electronic Component
BM0265086919
Voltage
11V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
200nA
Electronic Component
Electronic Component
Electronic Component
3000

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

LM-ULC0544P10 静电/浪涌防护器件产品概述

一、产品定位与核心价值

LM-ULC0544P10是雷卯电子(Leiditech)推出的四路集成式过压防护器件,专为低电压(3.3V/5V)高速信号接口设计,核心解决电子设备中静电放电(ESD)、电快速瞬变脉冲群(EFT)及浪涌冲击的防护需求。产品通过优化结电容、集成多路通道及符合国际EMC标准,平衡了“防护可靠性”与“信号完整性”,适合对小型化、高速传输有要求的消费电子、工业控制及通信设备领域。

二、关键参数与性能优势

  1. 电压与功率防护能力
    反向截止电压(Vrwm)为5V,精准适配主流3.3V/5V系统的工作电压范围,正常工作时不导通,避免对信号造成干扰;峰值脉冲电流(Ipp)达5A(8/20μs波形),可有效泄放雷电感应、电源切换等产生的浪涌电流;峰值脉冲功率(Ppp)60W,具备足够功率容限应对瞬态冲击,防止后端芯片被击穿。

  2. 信号完整性保障
    结电容(Cj)仅0.45pF,远低于普通TVS管的电容值(通常>1pF),可最大程度减少对高速信号的传输损耗、延迟及上升沿畸变——例如对USB 3.0(5Gbps)、HDMI 2.0(18Gbps)等高速接口,能保证信号质量不衰减,满足1Gbps以上传输要求。

  3. 低功耗与可靠性
    反向漏电流(Ir)仅200nA,几乎不消耗系统待机功耗,避免对敏感电路(如低功耗MCU)造成额外负担;钳位电压11V,在浪涌发生时可快速将电压钳位至安全范围(远低于芯片典型最大耐压15V),实现“瞬间防护”。

三、防护标准与应用兼容性

产品严格符合IEC 61000-4系列核心EMC标准,覆盖设备全场景防护:

  • IEC 61000-4-2(静电放电):应对日常接触/空气放电(如人体静电),降低芯片损坏风险;
  • IEC 61000-4-4(电快速瞬变脉冲群):抑制电网干扰产生的快速脉冲群,避免系统误触发、数据错误;
  • IEC 61000-4-5(浪涌):防护雷电感应、开关浪涌,提升设备在恶劣环境下的稳定性。

四、封装与典型应用场景

  • 封装形式:采用DFN2510-10封装,尺寸仅2.5mm×1.0mm×0.5mm(典型值),10引脚集成4路防护通道,大幅减少PCB占用空间,适合智能手机、智能穿戴等小型化产品的高密度布局。

  • 典型应用:

    1. 消费电子:手机、平板、笔记本的USB接口、HDMI接口、音频接口防护;
    2. 工业控制:PLC模块、传感器接口、通信模块的过压防护;
    3. 通信设备:路由器、交换机的以太网接口、USB接口防护;
    4. 车载电子(若经车规认证):车载信息娱乐系统的HDMI/USB接口防护。

五、设计与选型建议

  1. 需根据系统工作电压匹配型号(如5V系统优先选Vrwm=5V的LM-ULC0544P10);
  2. 布局时尽量靠近接口连接器,减少引线电感,提升防护效率;
  3. 4路通道可分别对应不同信号(如USB D+/D-、HDMI TMDS通道),无需并联多个单通道器件,简化电路设计。

LM-ULC0544P10通过“高集成度+低电容+宽标准覆盖”,为高速接口提供可靠防护,同时满足小型化产品的设计需求,是消费电子、工业领域的高性价比防护方案。

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