WMSIC Electronic Components

DL5232B

ModelDL5232B
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 DL5232B
Type
YONGYUTAI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YONGYUTAI
Electronic Component
DL5232B
Electronic Component
1
Package
LL-34
Electronic Component
Zener Diode
Electronic Component
±5%
Electronic Component
0.046g
Electronic Component
1
(Zzt)
11Ω
Electronic Component
BM0266109445
Diode
1
Current(Ir)
5uA@3V
Power Dissipation(Pd)
500mW
Electronic Component
Electronic Component
Electronic Component
2500

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

DL5232B 稳压二极管产品概述

DL5232B是YONGYUTAI(永裕泰)推出的独立式稳压二极管,采用LL-34小型轴向封装,核心针对中小功率、低功耗场景的电压稳定需求设计,参数均衡且可靠性突出,广泛适配各类电子设备的基准电压、稳压支路等应用。

一、产品定位与核心特性

DL5232B属于通用型稳压二极管系列,定位为中小电流精密稳压元件,核心特性可概括为:

  1. 稳压值稳定:5.6V标称值,±5%精度覆盖常见5V系统的基准需求;
  2. 低功耗待机:反向漏电流仅5uA(@3.0V反向偏置),适合电池供电设备;
  3. 中小功率适配:500mW最大耗散功率,满足100mA以内稳压电流需求;
  4. 高稳压精度:11Ω动态阻抗(Zzt),电压波动小,适合对基准精度有要求的场景;
  5. 小体积高密度:LL-34封装体积紧凑,适配PCB布局紧凑的设备。

二、关键参数详解

DL5232B的核心参数直接决定其应用场景,各参数意义与实际价值如下:

2.1 稳压值与精度

  • 标称稳压值(Vz):5.6V
    反向击穿电压的典型值,是稳压二极管的核心指标,5.6V接近5V系统的常用电压范围,可通过分压、运算放大器跟随器等电路适配各类5V/3.3V系统;
  • 精度:±5%
    实际稳压范围为5.32V~5.88V,满足大部分非超精密场景的电压稳定需求(若需±1%精度需选择其他专用型号)。

2.2 反向漏电流(Ir)

  • 参数:[email protected]
    反向偏置电压3V(远低于稳压值)时的漏电流,仅5uA意味着待机状态下功耗极低(P=V×I=3V×5uA=15μW),非常适合智能手环、传感器节点等低功耗设备的待机稳压支路。

2.3 耗散功率与最大稳压电流

  • 最大耗散功率(Pd):500mW
    元件允许的最大连续功耗,若超过则会导致过热损坏;
  • 最大稳压电流(Izmax):≈89mA
    由Pd与Vz计算(Izmax=Pd/Vz=500mW/5.6V≈89mA),实际应用中需配合限流电阻,确保工作电流在Izmin(约1mA,常规稳压管最小电流)~Izmax之间。

2.4 动态阻抗(Zzt)

  • 参数:11Ω
    稳压工作点的交流阻抗,阻抗越低,稳压效果越好(输入电压波动或负载电流变化时,输出电压变化越小)。11Ω的动态阻抗优于普通稳压管(常规20Ω~50Ω),适合对电压稳定性要求较高的ADC基准、音频偏置等场景。

三、封装与可靠性设计

DL5232B采用LL-34轴向引线封装,是稳压二极管的经典小型封装,设计特点如下:

  1. 体积紧凑:直径约1.5mm,长度约3.4mm,可节省PCB空间,适配便携式设备、小型模块;
  2. 焊接适配:轴向引线直径约0.4mm,支持手工焊接(烙铁温度≤260℃,时间≤3s)与自动贴装(若采用编带包装);
  3. 耐温范围:常规工业级温区(-55℃~150℃),满足大部分户外、工业环境的温度需求;
  4. 封装材料:采用玻璃或耐高温塑料封装,反向击穿特性稳定,长期使用参数漂移小(无内置保护电路,需外接限流电阻)。

四、典型应用场景

DL5232B的参数特性使其适配以下核心场景:

  1. 5V系统基准电压源:为单片机、ADC、DAC提供稳定的5.6V基准(通过分压得到5V或3.3V),提升采样/输出精度;
  2. 低功耗设备稳压支路:智能穿戴、物联网传感器节点的待机稳压,漏电流5uA可延长电池续航;
  3. 音频电路偏置稳压:小功率耳机放大器、麦克风前置放大器的偏置电压稳定,11Ω阻抗确保音频信号无明显失真;
  4. 电源过压辅助保护:配合限流电阻,当输入电压超过5.6V时击穿,钳位电压(需注意:稳压管主要用于稳压,过压保护优先选TVS,但可作为辅助保护)。

五、选型与使用注意事项

为确保DL5232B的可靠性与性能,使用时需注意以下要点:

  1. 限流电阻计算:
    公式:R=(Vin - Vz)/Iz,其中Vin为输入电压(需> Vz),Iz为工作电流(1mA~89mA)。例如:Vin=9V,Iz=10mA,则R=(9-5.6)/0.01=340Ω(选标准电阻330Ω或390Ω);
  2. 功率降额:实际使用功率不超过Pd的80%(400mW),延长元件寿命;
  3. 焊接规范:烙铁温度≤260℃,焊接时间≤3s,避免加热引线根部(防止封装开裂);
  4. 温区适配:高温场景(>125℃)需降低工作电流(降额50%以上);
  5. 精度匹配:若需±1%或更高精度,需选择专用精密稳压管(如LM385系列),DL5232B的±5%精度满足常规需求。

DL5232B以其均衡的参数、小体积与低功耗特性,成为中小功率稳压场景的高性价比选择,适用于消费电子、工业控制、物联网等领域的各类设备。

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