WMSIC Electronic Components

FUXINSEMI MMBZ33VALT1G

ModelMMBZ33VALT1G
PackageSOT-23
BrandFUXINSEMI
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
FUXINSEMI MMBZ33VALT1G
Type
FUXINSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
MMBZ33VALT1G
Electronic Component
1
Package
SOT-23
Electronic Component
Zener Diode
Electronic Component
0.031g
Electronic Component
1
(Zzk)
325Ω
(Zzt)
80Ω
Electronic Component
BM0265132999
Diode
1
Power Dissipation(Pd)
300mW
Electronic Component
31V~35V
Electronic Component
55℃~+150℃

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

MMBZ33VALT1G 双稳压二极管产品概述

MMBZ33VALT1G是FUXINSEMI(富芯森美)推出的共阳极双稳压二极管,采用紧凑SOT-23封装,专为双路稳压、过压保护及电压基准场景设计,具备宽稳压范围、低漏电流、工业级可靠性等特点,适配多领域电路需求。

一、产品核心特性

作为1对共阳极集成稳压管,MMBZ33VALT1G的核心优势集中在集成化、参数稳定、环境适应性三个维度:

  1. 共阳极双管集成:将两个稳压管封装于同一SOT-23内,无需外部并联即可实现双路稳压,简化电路设计;
  2. 宽稳压范围覆盖:标称33V,实际31V~35V(±6%波动),适配不同设计余量需求;
  3. 低反向漏电流:23.1V反向偏置下仅100nA,适合低功耗场景,减少静态损耗;
  4. 宽结温工作:支持-55℃~+150℃结温,稳定应对极端温度环境;
  5. 小封装高密度:SOT-23尺寸紧凑,适配高密度PCB布局,符合小型化趋势。

二、关键电气参数详解

MMBZ33VALT1G的参数经严格测试,核心指标可支撑多样化应用:

1. 稳压特性

  • 标称稳压值(Vz):33V(典型值),为设计提供明确参考;
  • 稳压范围:31V~35V,兼容不同批次器件,降低选型精度要求;
  • 动态阻抗(Zzt):80Ω(典型值),稳压区阻抗低,输出电压稳定性好,适合电压基准;
  • 击穿区阻抗(Zzk):325Ω(典型值),反向击穿过渡区特性明确,可精准控制过压保护阈值。

2. 漏电流与功耗

  • 反向漏电流(Ir):100nA(@23.1V),远低于普通稳压管,低功耗场景优势显著;
  • 最大耗散功率(Pd):300mW,最大允许工作电流≈9mA(Pd=Vz×Iz),需通过限流电阻控制电流。

3. 环境适应性

  • 工作结温:-55℃~+150℃,符合工业级温度要求;
  • 存储温度:-65℃~+150℃(品牌标准),便于运输存储。

三、封装与可靠性设计

MMBZ33VALT1G采用SOT-23封装(3引脚),引脚定义为:

  • 引脚1/3:双稳压管阴极;
  • 引脚2:共阳极(公共端)。

封装优势:

  1. 小尺寸高密度:尺寸约2.9×1.6×1.1mm,节省PCB空间;
  2. 焊接可靠性:适配SMT自动贴装,引脚间距合理,降低虚焊风险;
  3. 长期稳定性:FUXINSEMI封装工艺确保宽温湿度下无漏液、氧化问题,使用寿命长。

四、典型应用场景

1. 双路稳压电源

共阳极配置实现两路独立稳压,适合对称输出需求(如正负电源参考、双路传感器供电);

2. 过压保护电路

反向击穿特性可钳位电压于31V~35V,保护电源/信号端口后级电路;

3. 电压基准源

低动态阻抗(80Ω)、稳定稳压值,适配ADC/DAC参考电压,提升信号精度;

4. 工业控制电路

宽结温应对户外控制柜、高温设备等极端环境,保证稳定运行;

5. 消费电子周边

小封装、低功耗适合智能手机、平板的电池保护、充电管理参考电路。

五、选型与使用注意事项

  1. 稳压值匹配:根据需求筛选31V~35V范围内器件,精确稳压需测试筛选;
  2. 功耗限制:工作电流≤9mA(@33V),串联限流电阻(R=(Vin-Vz)/Iz);
  3. 反向电压控制:长期工作电压需在31V~35V内,避免过压老化;
  4. 焊接工艺:SMT温度≤260℃(回流焊),手工焊接时间≤3秒;
  5. 存储运输:干燥无腐蚀环境,温度-65℃~+150℃,避免机械冲击。

六、总结

MMBZ33VALT1G凭借宽稳压范围、低漏电流、小封装、工业级可靠性,成为电源设计、过压保护、电压基准等场景的理想选择。FUXINSEMI的品质保障使其在长期稳定性上具备竞争力,适配多领域小型化电路需求。

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