WMSIC Electronic Components

DOWO MMBZ33VAL

ModelMMBZ33VAL
PackageSOT-23
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 26+

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Technical data

Product details

19 specifications

Core information

Product name
DOWO MMBZ33VAL
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
MMBZ33VAL
Electronic Component
1
Package
SOT-23
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.018g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0264356076
Voltage
46V
Electronic Component
IEC 61000-4-2
Current(Ir)
50nA
Voltage(VBR)
33V

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

MMBZ33VAL 瞬态抑制二极管产品概述

MMBZ33VAL是东沃(DOWO)品牌推出的双路单向ESD瞬态抑制二极管,采用SOT-23小体积表面贴装封装,专为电子电路的静电放电(ESD)及瞬态过压防护设计,符合IEC 61000-4-2国际防护标准,可有效保护敏感电子元件免受静电冲击及瞬态电压干扰。

一、核心参数总览

该器件的技术参数精准匹配通用电子防护需求,具体如下:

  • 极性:单向导通,仅在正向过压时触发防护;
  • 电压参数:反向截止电压(Vrwm)26V(正常工作电压上限)、击穿电压33V(过压触发阈值)、钳位电压46V(过压时电压限制值);
  • 电流与功率:峰值脉冲电流(Ipp)870mA、峰值脉冲功率(Ppp)40W、反向漏电流(Ir)50nA(低功耗特性);
  • 其他参数:双路独立通道、防护等级符合IEC 61000-4-2静电放电标准、器件类型为ESD防护专用、封装形式SOT-23。

二、关键性能特点

  1. 精准过压响应:击穿电压33V与反向截止电压26V形成合理阈值差,正常工作时器件截止不影响信号传输;过压超过33V时快速导通,将电压钳位至46V,保护后端MCU、传感器等敏感元件;
  2. 低功耗设计:反向漏电流仅50nA,正常工作状态下几乎无额外功耗,适配手机、智能手环等对功耗敏感的便携式设备;
  3. 双路集成优势:双路独立单向通道可同时防护两路信号线路(如USB接口的VCC与DATA线、音频左右声道),无需多器件并联,节省PCB空间并简化电路;
  4. 小体积适配:SOT-23封装尺寸紧凑(约2.9×1.6×1.1mm),适配高密度PCB布局,满足小型化电子设备设计需求;
  5. 标准兼容可靠:符合IEC 61000-4-2静电放电标准,可应对人体接触放电(8kV)、空气放电(15kV)等常见场景,防护可靠性经标准验证。

三、典型应用场景

MMBZ33VAL的参数特性使其适用于多领域ESD防护,常见场景包括:

  1. 消费电子接口:手机、平板、笔记本的USB、HDMI、音频接口,此类接口易受静电冲击,双路设计可同时防护电源与信号线路;
  2. 通信设备端口:路由器、交换机、无线AP的以太网、射频接口,避免静电干扰导致通信异常;
  3. 工业控制电路:PLC输入输出端口、温度/压力传感器接口,保护工业现场敏感控制元件;
  4. 便携式设备:智能手表、蓝牙耳机、移动电源的充电与信号端口,低漏电流不影响设备续航。

四、应用注意事项

为确保防护效果与电路可靠性,需注意:

  1. 工作电压限制:电路正常电压需低于26V,避免长期过压导致器件性能下降;
  2. 焊接工艺:采用回流焊(峰值≤260℃,回流时间≤10秒),避免手工焊接温度过高损坏器件;
  3. 通道使用:双路为独立单向设计,防护双向信号需两个器件反向并联;
  4. 存储条件:常温(15-35℃)、干燥(相对湿度≤60%)环境存储,避免潮湿/腐蚀性气体。

五、品牌与封装优势

东沃(DOWO)专注防护器件研发,MMBZ33VAL的SOT-23封装具有:

  • 高可靠性:封装材料耐温性好,可承受多次回流焊;
  • 生产兼容:适配主流SMT贴装设备,提升生产效率;
  • 空间节省:相比DIP封装体积减少约70%,适配小型化设计。

综上,MMBZ33VAL凭借精准防护、低功耗、双路集成及小体积封装,成为消费电子、通信、工业控制等领域ESD防护的高性价比选择。

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