WMSIC Electronic Components

UMW MMBZ15VALT1G

ModelMMBZ15VALT1G
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UMW MMBZ15VALT1G
Type
UMW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
MMBZ15VALT1G
Electronic Component
1
Package
SOT-23
Electronic Component
Electronic Component
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.033g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0265570280
Voltage
21V
Electronic Component
IEC 61000-4-2
Current(Ir)
50uA
Voltage(VBR)
15V
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.

UMW MMBZ15VALT1G 双路单向瞬态抑制二极管产品概述

UMW(友台半导体)推出的MMBZ15VALT1G是一款专为低电压电路设计的双路单向瞬态抑制二极管(TVS),采用超小型SOT-23封装,核心定位是解决消费电子、便携设备、IoT模块等场景下的静电放电(ESD)与浪涌过压防护问题。其参数精准匹配12V系统需求,符合国际IEC 61000-4-2防护标准,是高密度、低功耗设计的可靠防护方案。

一、核心身份与典型应用场景

MMBZ15VALT1G属于单向双路TVS——同一封装内集成两个独立的单向防护通道,可同时为两路电路提供过压保护。其典型应用覆盖三类核心场景:

  1. 便携电子终端:智能手机、平板、智能手表的充电接口(USB)、音频接口、传感器接口(如加速度计、心率传感器),这些部位易受人体静电冲击;
  2. IoT与小型模块:蓝牙模块、WiFi模块、低功耗MCU的信号线路(I2C、SPI、UART),避免无线传输中的浪涌干扰;
  3. 低电压电源系统:12V以下电池供电设备(如充电宝、小型医疗设备)的电源输入/输出端,防护电源波动带来的过压。

相比单路TVS,双路设计直接减少器件数量,降低50%PCB占用面积,完美适配便携设备的轻薄化趋势。

二、关键电气参数深度解析

产品参数围绕“低电压防护+小尺寸集成”设计,核心参数可分为“正常工作”与“防护触发”两类,每一项都指向实际应用需求:

  • 正常工作参数:
    • 反向截止电压(Vrwm)12V:电路正常工作时(如电源电压10V),器件处于截止状态,不干扰电路;
    • 反向漏电流(Ir)50uA:截止状态下漏电流极小,对智能手表等低功耗设备的待机时长无明显影响。
  • 防护触发参数:
    • 击穿电压15V:当反向电压超过15V时,器件快速击穿进入防护状态,比Vrwm高3V的设计避免了正常电压波动的误触发;
    • 钳位电压21V:峰值脉冲电流下的最高保护电压,远低于多数敏感IC的耐压极限(如24V),能有效限制浪涌对后端器件的冲击;
    • 峰值脉冲电流(Ipp)1.9A:覆盖IEC 61000-4-2标准中“接触放电8kV”“空气放电15kV”的脉冲电流范围,满足ESD防护要求。

三、封装与可靠性特征

  • SOT-23超小型封装:尺寸约2.9mm×1.6mm×1.1mm,兼容自动贴装(SMT)工艺,适合批量生产;双路集成设计比“两个单路SOT-23”节省一半空间,适配紧凑布局;
  • IEC 61000-4-2防护认证:通过国际静电放电标准测试,能抵御人体、机器等不同来源的静电冲击,保障电路长期稳定;
  • 重复防护能力:TVS核心优势是“多次浪涌后恢复正常”,MMBZ15VALT1G可承受1000次以上浪涌冲击,漏电流、击穿电压等参数无明显衰减,可靠性符合工业级要求。

四、市场适配与选型注意事项

  • 适配优势:针对12V系统的参数设计填补了低电压双路TVS的市场空白;UMW作为国产品牌,性价比优于进口竞品(如安森美、东芝同类型号),适合国内中小企成本控制;
  • 选型要点:
    1. 若需双向防护(如信号双向传输),需选双向TVS(如MMBZ15VLT1G);
    2. 双路设计可同时防护“数据+时钟”“电源+地”等两路电路,无需并联多个单路器件;
    3. 1.9A峰值脉冲电流仅适用于低功率浪涌,若遇雷击等大功率浪涌,需搭配压敏电阻级联防护。

五、产品价值总结

MMBZ15VALT1G是一款“小而强”的防护器件:超小型SOT-23封装适配紧凑布局,双路集成节省空间,12V系统参数匹配低电压应用,符合IEC 61000-4-2标准保障ESD防护,50uA漏电流满足低功耗需求。其核心价值在于为消费电子、IoT等领域提供“低成本、高可靠、省空间”的过压防护方案,是替代进口同类产品的优质国产选项。

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