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Jingdao Microelectronics BZT52C3V9S
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Electronic BZT52C3V9S
- Type
- Jingdao Microelectronics
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic
- Electronic Component
- BZT52C3V9S
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Zener Diode
- Electronic Component
- 0.028g
- Electronic Component
- 1
- (Zzt)
- 90Ω
- Electronic Component
- BM0265166852
- Diode
- 1
- Current(Ir)
- 3uA
- Power Dissipation(Pd)
- 200mW
- Electronic Component
- 3.7V~4.1V
- Electronic Component
- 55℃~+150℃
- 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.
BZT52C3V9S稳压二极管产品概述
BZT52C3V9S是晶导微电子推出的小功率表面贴装稳压二极管，采用独立式单管设计，聚焦低压稳压、低功耗与高密度PCB适配，广泛应用于消费电子、通信及工业控制等对体积和稳定性要求较高的场景。
一、核心定位与设计特点
该器件属于稳压二极管家族中的低压系列，核心围绕“小体积、低功耗、宽温适配”三大设计方向：
- 独立式封装：单管结构无需额外并联/串联组合，电路设计灵活，适配各类小型化电路；
- 紧凑型贴装：SOD-323封装尺寸仅2.3mm×1.25mm，可大幅节省PCB空间，支持高密度布局；
- 低功耗优化：反向漏电流与动态阻抗参数针对低功耗场景调校，适合电池供电设备或待机状态下的低电流需求。
二、关键参数详解
稳压值特性
标称稳压值3.9V，实际工作范围3.7V~4.1V（一致性±5%），满足多数低压电路的参考电压或稳压需求（如逻辑电路、传感器偏置电压）。反向漏电流（Ir）
反向电压1V时漏电流仅3uA，远低于常规稳压二极管（一般几十uA），可有效降低电路待机功耗，延长电池供电设备续航。耗散功率（Pd）
最大耗散功率200mW，匹配封装散热能力，适合小电流稳压场景（典型工作电流<50mA），避免功率过载失效。动态阻抗（Zzt）
稳压状态下动态阻抗90Ω，负载电流变化时输出电压波动极小，保障电路稳定性（如通信设备信号调理模块）。工作结温范围
支持-55℃~+150℃宽温工作，覆盖工业级环境要求，可应用于户外设备、高温工业控制模块。
三、封装与可靠性保障
SOD-323封装具备以下优势：
- 环保合规：符合RoHS 6.0、REACH标准，适配绿色电子产品设计；
- 焊接可靠：塑封工艺牢固，可承受回流焊（260℃/10s内无损伤）、波峰焊等常规贴装工艺；
- 耐环境性：抗潮湿、抗腐蚀，通过高温存储、温度循环、振动等可靠性测试（MIL-STD-202等级）。
四、典型应用场景
- 消费电子：手机、平板、智能穿戴的电源管理模块（USB Type-C低压稳压）、音频电路偏置；
- 通信设备：小型基站、路由器、WiFi模块的信号调理参考电压；
- 工业控制：传感器（温度/压力）稳压偏置、PLC辅助电源；
- 电池设备：蓝牙音箱、智能门锁的待机电路稳压，减少漏电流损耗；
- 小型电源：5V转3.3V辅助稳压、LED驱动限流稳压。
五、选型与使用注意事项
- 限流电阻计算：按公式R=(Vin-Vz)/Iz（Iz<50mA）计算，避免超过Pd；
- 温度降额：>125℃时，Pd每升高1℃降额约0.13mW；
- 焊接规范：烙铁温度<350℃、时间<3s，避免热损伤；
- 反向电压限制：不超过稳压值1.2倍（参考 datasheet），防止击穿损坏。
BZT52C3V9S凭借紧凑体积、低功耗与宽温特性，成为低压稳压场景的高性价比选择，适配多数小型化电子设备需求。
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