WMSIC Electronic Components

UMW MMBZ6V8ALT1G

ModelMMBZ6V8ALT1G
PackageSOT-23
BrandUMW
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
UMW MMBZ6V8ALT1G
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
MMBZ6V8ALT1G
Electronic Component
1
Package
SOT-23
Electronic Component
Electronic Component
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.032g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0230945354
Voltage
9.6V
Electronic Component
IEC 61000-4-2
Current(Ir)
500nA
Voltage(VBR)
7.14V
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.

MMBZ6V8ALT1G 产品概述

一、产品简介

MMBZ6V8ALT1G 是友台半导体(UMW)推出的一款双路单向瞬态抑制二极管(TVS),采用 SOT-23 封装,专为 5V 及以下电源和信号线的过压、浪涌和静电放电保护设计。器件体积小、响应快,适合对板级空间和成本敏感的消费电子、通信及工业应用。

二、核心参数

  • 极性:单向
  • 反向截止电压(Vrwm):4.5 V(适配典型 5V 工作点)
  • 击穿电压(Vbr):约 7.14 V
  • 钳位电压(Vclamp):9.6 V(在规定脉冲条件下测得)
  • 峰值脉冲功率(Ppp):24 W @ 1.0 ms
  • 反向漏电流(Ir):500 nA(典型/最大)
  • 通道数:双路(两个独立保护单元)
  • 防护等级:符合 IEC 61000-4-2(静电放电 ESD)标准
  • 封装:SOT-23,利于表面贴装与自动化生产

三、保护特性与工作机理

该器件为单向 TVS,在正常工作时呈高阻状态,当瞬态电压超过击穿阈值(约 7.14 V)时迅速导通,将能量钳位在约 9.6 V,从而保护后端电路免受过压损害。双路设计允许在同一封装内对两条独立信号线或电源/地线组合进行保护,节省 PCB 面积。

四、典型应用

  • USB、串口及数据通信接口的浪涌/ESD 保护
  • 5V 电源总线保护(嵌入式系统、单板机)
  • 移动设备、便携式电子产品的接口保护
  • 工业控制与楼宇自控中对抗静电与瞬态过压的板级保护

五、封装与布局建议

SOT-23 小型封装便于贴片组装。建议将器件尽量靠近被保护的输入/接口引脚布置,缩短信号回路和地回路的寄生电感;为提升抗冲击能力,必要时可在信号线上配合串联电阻或共模电感使用;保证地平面完整并使用合适的焊盘/过孔散热设计,以利于脉冲能量的快速导散。

六、选型与注意事项

  • 若系统工作电压高于 5V,应选择相应 Vrwm 更高的型号;
  • 钳位电压 9.6 V 为脉冲条件下指标,实际保护效果受脉冲幅值、持续时间及电路阻抗影响;
  • 长时间的大能量冲击会导致器件发热或损坏,建议按系统脉冲能量评估是否需要并联更高功率方案或外部限流。

MMBZ6V8ALT1G 以其小体积、双路集成和对 IEC 61000-4-2 的兼容性,是面向 5V 及信号线保护的高性价比选择。

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