WMSIC Electronic Components

PANJIT BZX84C3V9_R1_00001

ModelBZX84C3V9_R1_00001
PackageSOT-23
BrandPANJIT
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
PANJIT BZX84C3V9_R1_00001
Type
SOT-23
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANJIT
Electronic Component
BZX84C3V9_R1_00001
Electronic Component
1
Package
SOT-23
Electronic Component
Zener Diode
Electronic Component
0.028g
Electronic Component
1
(Zzk)
600Ω
(Zzt)
90Ω
Electronic Component
BM0265820289
Diode
1
Current(Ir)
3uA@1V
Power Dissipation(Pd)
410mW
Electronic Component
3.71V~4.1V
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.

BZX84C3V9_R1_00001 稳压二极管产品概述

一、产品基本信息

BZX84C3V9_R1_00001是PANJIT(强茂) 推出的独立式稳压二极管,采用SOT-23表面贴装封装,属于小体积、高集成度的低压稳压器件。该型号通过反向击穿特性实现电压稳定,适用于通用电子电路、工业控制及便携式设备等场景,是市场上应用广泛的常规稳压管之一。

二、核心电气参数详解

器件的关键参数直接决定其性能边界,具体如下:

2.1 稳压值特性

  • 标称稳压值:3.9V(反向击穿电压的典型值,反映器件稳压的中心值);
  • 稳压值范围:3.71V~4.1V(批量生产的偏差范围,覆盖±5%精度要求,可满足大部分低压稳压需求)。

2.2 反向漏电流

反向偏置电压为1.0V时,反向漏电流(Ir)仅3uA,远低于常规稳压管的漏电流水平,可有效降低电路待机或低功耗模式下的能量损耗,提升系统效率。

2.3 耗散功率

最大允许耗散功率(Pd)为410mW,在不超过环境温度限制的前提下,可稳定承载电路中的功率损耗,避免器件过热损坏。

2.4 动态阻抗

  • 工作电流下阻抗(Zzt):90Ω(稳压工作区间内的动态阻抗,反映电压随电流变化的特性,阻抗越低稳压效果越稳定);
  • 测试电流下阻抗(Zzk):600Ω(特定测试条件下的阻抗参数,可作为器件一致性的参考依据)。

2.5 工作温度范围

工作结温范围为-55℃~+150℃,覆盖工业级温度要求,可在极端环境(如高温车间、低温户外)中稳定工作,无需额外温度补偿电路。

三、关键性能特性总结

  1. 高稳压精度:稳压值偏差控制在±5%以内(3.71V~4.1V),满足ADC、DAC等对电压稳定性要求较高的电路需求;
  2. 低功耗设计:反向漏电流仅3uA@1V,待机损耗小,适合电池供电的便携式设备(如智能手表、蓝牙耳机);
  3. 小封装高功率密度:SOT-23封装体积仅约2.9×1.6×1.1mm,但最大耗散功率达410mW,可替代更大封装的稳压器件,节省电路空间;
  4. 宽温区可靠性:-55℃~+150℃的结温范围,确保在工业控制、汽车电子等恶劣环境下长期稳定运行;
  5. 独立式封装:单个器件独立封装,无串并联干扰,电路设计简单,无需额外匹配电阻。

四、典型应用场景

该器件因体积小、稳压精度高、宽温特性,广泛应用于以下场景:

  1. 低压稳压电路:5V系统向3.3V、3.0V等低压电路供电时,作为辅助稳压元件;
  2. 基准电压源:为运算放大器、传感器模块提供稳定参考电压(需配合限流电阻);
  3. 过压保护:并联在敏感电路输入端,当电压超过稳压值时击穿导通,限制电压峰值;
  4. 便携式电子设备:手机、智能手环等便携产品的电源稳压或信号基准;
  5. 工业控制电路:PLC、温度传感器等工业设备的供电稳压,适应宽温环境。

五、应用注意事项

为确保器件可靠工作,需注意以下几点:

  1. 功耗限制:实际耗散功率(Pd=稳压值×工作电流)不得超过410mW,需根据电路电流设计合适的限流电阻;
  2. 反向偏置要求:稳压管需工作在反向偏置状态(阴极接高电位,阳极接低电位),正向偏置无稳压功能;
  3. 温度漂移:结温变化会导致稳压值轻微漂移(约0.05%/℃),高精度场景需增加温度补偿;
  4. 焊接规范:烙铁温度不超过350℃,焊接时间不超过3秒,避免损坏封装及内部结构;
  5. 静电防护:采用常规ESD防护(接地、防静电包装),防止静电击穿半导体结构。

该器件综合性能均衡,性价比高,是低压稳压场景的常用选择,可满足多数通用及工业级应用需求。

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