WMSIC Electronic Components

DOWO USBLC6-4SC6 USBLC6

ModelUSBLC6-4SC6
PackageSOT-23-6L
BrandDOWO
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
DOWO USBLC6-4SC6
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
USBLC6-4SC6
Electronic Component
1
Package
SOT-23-6L
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.036g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.6pF;0.3pF
Electronic Component
BM0249905776
Operating Temperature
40℃~+125℃
Voltage
12V
Electronic Component
IEC 61000-4-5;IEC 61000-4-2

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

USBLC6-4SC6 产品概述

USBLC6-4SC6 是 DOWO(东沃)推出的一款四路单向瞬态电压抑制(TVS)二极管器件,专为 USB 等低电压高速接口提供瞬态过压、静电放电(ESD)和雷击脉冲保护。器件采用 SOT-23-6L 小型封装,性能稳定,适合集成到移动设备、外设、工业控制及通信终端等空间和成本受限的应用场景。

一、核心参数速览

  • 类型:单向 TVS(二极管)
  • 通道数:4 路(四通道并联或独立保护)
  • 反向工作电压 Vrwm:5 V
  • 击穿电压 Vbr:6 V
  • 钳位电压 Vclamp:12 V(在 8/20 μs、60 W 峰值脉冲下典型值)
  • 峰值脉冲功率 Ppp:60 W @ 8/20 μs
  • 反向漏电流 Ir:1 μA(典型/最大值依测试条件)
  • 结电容 Cj:0.6 pF;0.3 pF(典型值,依测量条件和各通道而定)
  • 工作温度范围:-40 ℃ ~ +125 ℃
  • 防护等级/符合标准:IEC 61000-4-2(ESD)与 IEC 61000-4-5(浪涌)
  • 封装:SOT-23-6L
  • 品牌:DOWO(东沃)
  • 描述分类:未分类(通用型接口保护器件)

二、主要特性与优势

  • 小封装高集成:SOT-23-6L 封装集成四路保护,节省 PCB 面积,便于在有限空间内实现多路保护设计。
  • 低钳位电压:在 60 W 峰值脉冲条件下钳位电压约 12 V,能在有限电压承受能力的系统中有效限制瞬态过压,保护后级器件安全。
  • 低结电容:典型结电容 0.3–0.6 pF,对高速信号的影响极小,适合 USB 等高速数据线保护,能兼顾信号完整性和浪涌防护。
  • 低漏电流:反向漏电流 1 μA,适合便携和低功耗设备,避免长期工作下引起功耗升高或电平漂移。
  • 宽工作温度:-40 ℃ 至 +125 ℃,适应汽车电子(部分非车规)与工业级环境温度要求。
  • 标准兼容性:满足 IEC 61000-4-2/4-5 规范,可应对典型的静电放电和电网浪涌场景。

三、典型应用场景

  • USB 数据接口(USB 2.0 / USB OTG):对 D+/D- 或各数据线与地之间提供单向瞬态抑制,保护控制器和 PHY。
  • 移动设备与外设:智能手机、平板、鼠标、键盘、U 盘等,要求小封装与低结电容的场合。
  • 工业与通讯终端:带有低压差分接口的设备,其抗雷击与 ESD 能力需要提升时。
  • 其他通用低压接口保护:如 I/O 口、串行总线数据线等。

四、应用建议与布板要点

  • 靠近接口放置:将 USBLC6-4SC6 置于受保护端的输入端靠近连接器处,将接线长度和走线电感降到最低,提升防护效果。
  • 地线设计:为保证钳位电流能迅速泄向地,建议使用低阻抗回流路径和局部接地平面,避免长而曲折的地线。
  • 电源线隔离:若保护电源线与数据线,需保证器件接地良好并适当分离电源与高频信号走线,避免耦合噪声回流至敏感电路。
  • 封装与散热:SOT-23-6L 封装易于贴片安装,但在高能量冲击条件下仍需关注焊盘连接可靠性及 PCB 热扩散设计。
  • 测试验证:在系统级进行 ESD(±)和浪涌(8/20 μs)试验验证,确保在真实工况下钳位电压与剩余电压满足后级器件承受范围。

五、典型使用注意事项

  • 确认工作电压:Vrwm = 5 V,适用于 5 V 类接口。若系统工作电压高于 5 V,请选型更高 Vrwm 的器件。
  • 单向特性:器件为单向 TVS,适合正向过压抑制并将能量导向地线;对于需要双向保护的场合,应选择双向 TVS 或采用双管方案。
  • 多通道配置:四路设计可以单独保护四条信号线或组合使用;在并联使用时注意电流均分与热限流特性。
  • 环境与老化:长期在高温、高湿或频繁冲击环境下使用时,建议进行寿命与可靠性评估。

USBLC6-4SC6 结合低结电容、低漏电流和较高脉冲能量承受能力,是面向 USB 与其它低压高速接口的高性价比防护选择。合理的 PCB 布局与接地设计可充分发挥其抗 ESD 与浪涌保护能力,提升整机可靠性。若需更详细的电气参数、引脚分配图或可靠性测试报告,建议联系 DOWO 或器件代理商获取完整数据手册及评估支持。

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