WMSIC Electronic Components

ROHM CDZVT2R8.2B

ModelCDZVT2R8.2B
PackageSOD-923
BrandROHM
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ROHM CDZVT2R8.2B
Type
ROHM
Minimum package
8000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ROHM
Electronic Component
CDZVT2R8.2B
Electronic Component
1
Package
SOD-923
Electronic Component
Zener Diode
Electronic Component
0.006g
Electronic Component
1
(Zzk)
60Ω
(Zzt)
30Ω
Electronic Component
BM0230593235
Diode
1
Current(Ir)
500nA@5V
Power Dissipation(Pd)
100mW
Electronic Component
8.02V~8.36V
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.

CDZVT2R8.2B 稳压二极管产品概述

一、产品定位与核心特性

CDZVT2R8.2B是ROHM罗姆半导体推出的一款表面贴装稳压二极管,属于低功耗、微型封装系列,主要针对便携式电子设备、小型控制电路等对空间和功耗敏感的应用场景设计。其核心特性可概括为:低反向漏电流、窄稳压范围、低动态阻抗、环保微型封装,能够满足高密度PCB布局和低功耗系统的稳压需求。

二、关键电气参数详解

该器件的电气参数经过严格校准,核心参数(基于典型工作条件)如下:

2.1 稳压值与精度

  • 标称稳压值:8.2V(稳压二极管的核心输出电压);
  • 稳压范围:8.02V~8.36V,对应精度约为±2%(8.2V×2%=0.164V,与范围上下限一致),稳压精度稳定,可满足多数电子电路的基准电压或稳压需求。

2.2 反向漏电流(Ir)

  • 参数值:500nA(@反向偏置电压5V);
  • 意义:反向漏电流是指稳压管在未击穿状态(反向电压低于稳压值)下的漏电流,500nA(纳安级)远低于普通稳压管的微安级漏电流,可有效降低静态功耗,尤其适合电池供电的便携式设备。

2.3 耗散功率(Pd)

  • 最大耗散功率:100mW;
  • 计算参考:在标称稳压值8.2V下,最大允许工作电流约为12mA(Pd=Vzt×It → It≈100mW/8.2V≈12.2mA),适合小电流稳压场景(如基准电压、信号滤波等)。

2.4 动态阻抗(Zzt/Zzk)

  • Zzt(测试电流下的阻抗):30Ω;
  • Zzk(动态阻抗):60Ω;
  • 意义:动态阻抗反映稳压管在电流变化时的电压波动能力,阻抗越低,电压稳定性越好。该器件的低阻抗特性可确保输出电压在工作电流波动时保持稳定,减少电路噪声影响。

三、封装与典型应用场景

3.1 封装规格

CDZVT2R8.2B采用SOD-923微型表面贴装封装,尺寸紧凑(常规为1.6mm×0.8mm),符合RoHS环保标准,可兼容自动化贴装生产线,适合高密度PCB布局(如智能手机主板、智能穿戴设备等)。

3.2 典型应用场景

  1. 便携式电子设备:智能手机、智能手环、蓝牙耳机等电池供电产品的电源滤波、基准电压源;
  2. 小型控制电路:家电遥控器、智能传感器模块的稳压辅助电路;
  3. 低功耗IoT终端:物联网节点的电压基准、信号调理电路;
  4. 过压保护:配合其他器件实现电路过压防护(如传感器模块的电压钳位)。

四、性能优势总结

与同类8.2V稳压二极管相比,CDZVT2R8.2B的核心优势体现在:

  1. 低功耗表现:500nA反向漏电流大幅降低静态功耗,延长电池续航;
  2. 稳压精度高:±2%稳压范围,满足精密电路的基准电压需求;
  3. 小封装集成:SOD-923微型封装,适配高密度PCB设计;
  4. 稳定性能:低动态阻抗(30Ω/60Ω),输出电压波动小,抗干扰能力强;
  5. 宽温可靠性:可在-55℃~+150℃工业级温度范围内稳定工作,适配严苛环境。

该器件凭借上述特性,成为便携式电子、低功耗IoT终端等领域的理想稳压解决方案,可有效提升电路稳定性并降低系统功耗。

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