WMSIC Electronic Components

Jingdao Microelectronics BZT52C39W

ModelBZT52C39W
PackageSOD-123W
BrandElectronic
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 Option 131685

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
Electronic BZT52C39W
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
BZT52C39W
Electronic Component
1
Package
SOD-123W
Electronic Component
Zener Diode
Electronic Component
0.033g
Electronic Component
1
(Zzk)
350Ω
(Zzt)
130Ω
Electronic Component
BM0265809798
Diode
1
Power Dissipation(Pd)
500mW
Electronic Component
37V~41V
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.

晶导微电子BZT52C39W稳压二极管产品概述

一、产品基本身份信息

晶导微电子BZT52C39W属于表面贴装稳压二极管系列,型号中“BZT52C”为该系列通用前缀,“39W”明确核心特性:标称稳压值39V,采用SOD-123W小型表面贴装封装。该器件专为小功率稳压、过压保护场景设计,兼顾小型化与宽温可靠性,适配工业控制、消费电子等多领域应用。

二、核心电性能参数解析

BZT52C39W的参数针对实际应用优化,关键参数及实际意义如下:

2.1 稳压值与偏差范围

标称稳压值为39V,实际生产偏差控制在37V~41V之间。该范围符合稳压二极管的常规一致性要求,无需额外校准即可直接用于多数稳压场景,满足低成本、快速部署的需求。

2.2 反向漏电流特性

在27.3V反向偏置电压(低于稳压值)下,反向漏电流仅为100nA。极低漏电流表明器件反向截止特性优异,待机或低功耗模式下几乎不消耗额外电流,适合电池供电的便携式设备(如智能穿戴、手持终端)等对功耗敏感的场景。

2.3 最大耗散功率

额定耗散功率为500mW,是器件允许的最大持续功耗。实际使用需注意:负载电流需满足 ( I_{load} \leq \frac{P_d}{V_z} \approx 12.8mA )(以标称39V计算),避免电流过大导致结温过高损坏器件。

2.4 动态阻抗特性

包含两个关键阻抗参数:Zzt=130Ω(特定测试电流下的动态阻抗)、Zzk=350Ω(另一测试电流下的阻抗)。低动态阻抗意味着稳压管输出电压随负载电流变化的幅度小,稳压特性更稳定,适合作为基准电压或过压钳位使用。

2.5 宽温工作范围

工作结温覆盖**-55℃+150℃**,远超常规消费级器件(0℃70℃),可适应工业控制、车载电子等高低温变化剧烈的恶劣环境,可靠性更高。

三、SOD-123W封装设计优势

BZT52C39W采用SOD-123W小型表面贴装封装,具备三大核心优势:

  1. 小型化布局:封装尺寸紧凑(典型尺寸约2.9mm×1.6mm×1.0mm),适合高密度PCB设计,可有效节省电路板空间,适配便携式设备、智能传感器模块等空间受限场景;
  2. 贴装兼容性:符合表面贴装工艺标准,可通过自动贴片机批量生产,生产效率高,降低制造成本;
  3. 散热适配:封装结构利于热量传递,结合500mW的功耗限制,可在常规PCB上实现有效散热,无需额外散热片,简化电路设计。

四、典型应用场景

BZT52C39W的参数特性使其适用于以下场景:

  1. 小功率电源稳压:在低压差电源电路中作为辅助稳压元件,或在5V/12V电源输出端做过压保护——当电压超过39V时导通钳位,保护后级敏感电路(如MCU、传感器);
  2. 通信接口过压防护:用于RS485、CAN等工业通信接口的瞬态过压防护,避免静电(ESD)或浪涌电压损坏接口芯片;
  3. 模拟电路基准电压:在精度要求不高的模拟电路(如简单温度传感器信号调理)中作为参考电压,利用低动态阻抗特性保证输出稳定;
  4. 工业控制模块:适配-55℃~150℃宽温环境,用于PLC、传感器节点等工业设备的稳压与保护,满足恶劣工况下的可靠性需求。

五、使用注意事项

为确保器件长期可靠工作,使用时需注意:

  1. 功耗管控:避免负载电流超过12.8mA(标称稳压值下),可串联1kΩ左右限流电阻限制电流,防止过热;
  2. 反向电压限制:长期工作时,反向电压需低于稳压值(39V),避免因接近稳压值导致功耗累积;
  3. 温度适配:高温环境(如150℃附近)使用时,需确保PCB散热良好,可适当降低负载电流(如降至10mA以内);
  4. 焊接工艺:表面贴装焊接需符合SOD-123W封装的温度曲线(峰值温度≤260℃,焊接时间≤10s),避免过温损坏器件。

综上,晶导微电子BZT52C39W凭借小型化封装、宽温可靠性、低漏电流等特性,成为小功率稳压与过压保护场景的高性价比选择,适配多领域电子设备的设计需求。

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