WMSIC Electronic Components

BZV55C3V3

ModelBZV55C3V3
PackageLL-34
BrandYONGYUTAI
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
YONGYUTAI BZV55C3V3
Type
YONGYUTAI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YONGYUTAI
Electronic Component
BZV55C3V3
Electronic Component
1
Package
LL-34
Electronic Component
Zener Diode
Electronic Component
0.045g
Electronic Component
1
(Zzk)
600Ω
(Zzt)
85Ω
Electronic Component
BM0225995901
Diode
1
Current(Ir)
2uA
Power Dissipation(Pd)
500mW
Electronic Component
3.1V~3.5V
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.

BZV55C3V3 产品概述

一、基本参数

  • 型号:BZV55C3V3(YONGYUTAI / 永裕泰)
  • 封装:LL-34(轴向玻璃封装)
  • 名义稳压值:3.3V(允许范围 3.1V ~ 3.5V)
  • 耗散功率 Pd:500 mW(最大)
  • 反向电流 Ir:典型 2 μA(在规定测试点);说明中亦标注 40 μA @ 1V(不同偏压/温度条件下漏电流会变化,请以具体数据表/测试条件为准)
  • 阻抗:Zzk = 600 Ω(低电流/拐点区域阻抗较高),Zzt = 85 Ω(在测试电流下的稳压阻抗)

二、主要特性

  • 稳压精度:3.3V 的标称值,实际元件在 3.1V–3.5V 范围内波动,适用于对精度要求中等的参考或稳压场合。
  • 低功耗、小体积:500 mW 的耗散能力适合小信号或低电流稳压电路(如基准偏置、传感器供电、逻辑电平偏置等)。
  • 工作电流与阻抗关系:在极低电流时(靠近击穿起始点)阻抗较大(Zzk≈600Ω),在指定测试点阻抗可降至约 85Ω;因此在设计时应选择合适工作点以获得稳定的稳压性能。
  • 轴向玻璃封装(LL-34)便于穿孔安装,但机械强度较金属/塑封低,应注意机械保护与焊接工艺。

三、典型应用场景

  • 低功耗基准电压源:为放大器参考、AD/DA 前端、偏置网络提供 3.3V 基准(当电流受限并且允许一定漂移时)。
  • 电压钳位与浪涌保护:在小电流信号线上对过压进行钳位保护。
  • 电平移位、偏置稳定:与限流电阻串联形成简单的稳压模块,用于传感器或数模接口的小电流供电。
  • 教学与实验电路:因价格低廉、参数直观,常用于教学与原型验证。

四、使用与热设计注意事项

  • 功率限制:器件最大耗散功率为 500 mW,实际工作时应保证在额定功率以下并留有余量。稳压二极管功耗计算:Pz = Vz × Iz(实际电流 Iz = (Vin − Vz) / Rseries);保证 Pz ≤ 0.5 W。
  • 串联限流:务必在输入端串联合适的限流电阻以限制通过稳压二极管的电流,避免过热损坏。
  • 温度与漏电流:反向漏电流随温度上升而增加,高温下稳压电压与漏电流会偏离室温数据表值,需在热仿真或实际测试中验证。
  • 焊接与机械保护:轴向玻璃封装对机械应力敏感,焊接温度和时长应按厂家推荐控制(避免长时间高温),安装时避免弯折引脚过度应力。

五、封装与替代建议

  • 封装说明:LL-34 轴向玻璃封装,便于穿孔安装但不适合自动贴片工艺。
  • 替代型号选择:在替换时应核对稳压电压范围、测试电流下的阻抗、最大耗散功率及封装形态。可考虑同类 0.5W 级别、3.3V 名称的稳压二极管系列,但替换前务必比较 Ir、Zt、Pd 等关键参数并进行实际验证。

六、采购与检验建议

  • 生产厂家与标签:本件由 YONGYUTAI(永裕泰)供应,采购时确认型号、批次和外观标识一致。
  • 来货检验:建议抽样测量稳压电压(在推荐测试电流下)、漏电流及外观检测(玻璃是否完整、引脚焊接性)。
  • 管理与存储:避免潮湿与剧烈温度变化,轴向玻璃器件应单独防震包装保存。

结语:BZV55C3V3(LL-34,3.3V,0.5W)适合用于低功耗、小信号稳压与钳位场合。设计时请重点关注工作电流点、散热余量及环境温度对稳压和漏电流的影响,必要时通过实际样机测试确认性能满足系统要求。

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