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DOWO BZT52C24S
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO BZT52C24S
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- BZT52C24S
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Zener Diode
- Electronic Component
- 0.028g
- Electronic Component
- 1
- (Zzk)
- 250Ω
- (Zzt)
- 70Ω
- Electronic Component
- BM0265602930
- Diode
- 1
- Current(Ir)
- [email protected]
- Power Dissipation(Pd)
- 200mW
- Electronic Component
- 22.8V~25.6V
- 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.
BZT52C24S稳压二极管产品概述
一、产品基本定位
BZT52C24S是DOWO（东沃）品牌推出的小功率表面贴装稳压二极管，核心功能是为电子电路提供稳定的电压基准、实现过压保护或辅助电源稳压。该器件采用SOD-323紧凑型封装，适配便携设备、小型工业模块等对空间尺寸要求严格的应用场景，是低功耗电路设计的常用元件。
二、核心电性能参数详解
该器件的关键参数围绕稳压特性、功耗及阻抗展开，具体如下：
- 稳压值特性：标称稳压值为24V，实际工作范围覆盖22.8V~25.6V，满足常规稳压需求的电压波动要求，无需额外补偿电路即可实现稳定输出；
- 反向漏电流（Ir）：在反向偏置电压16.8V时，漏电流仅为100nA，低漏电流特性使其在电池供电设备（如智能手环）中表现优异，可有效减少待机损耗；
- 最大耗散功率（Pd）：额定功率为200mW，是器件连续工作的功率上限。实际应用中需通过公式（工作电流≤Pd/Vz）计算余量，如24V稳压时最大允许电流约8.3mA；
- 动态阻抗：包含两个关键参数——测试电流下的阻抗Zzt=70Ω，拐点电流下的阻抗Zzk=250Ω。低阻抗意味着稳压值随工作电流变化幅度小，可提升电路精度与稳定性。
三、封装特性与适用场景
3.1 封装优势
采用SOD-323表面贴装封装，具有以下特点：
- 尺寸紧凑：体积小（约1.6mm×0.8mm），适配高密度PCB布局，节省电路空间；
- 焊接兼容：支持自动化贴片生产，焊接工艺成熟，降低生产难度与成本。
3.2 典型应用场景
- 电压基准源：为ADC、DAC等模拟电路提供稳定24V参考电压，保证信号采集/转换精度；
- 过压保护：并联在MCU、传感器等敏感器件两端，过压时击穿分流，钳位电压至24V左右；
- 电源稳压辅助：配合线性稳压器补充精度，或在简单电源电路中直接作为稳压元件；
- 便携设备：如蓝牙耳机、智能手表等电池供电产品，低漏电流延长续航。
四、典型应用电路示例
以MCU输入过压保护电路为例：
- 结构：BZT52C24S并联在MCU输入端口，串联1kΩ限流电阻于电源与二极管阴极之间；
- 原理：电源正常（≤24V）时，二极管反向偏置，漏电流极小不影响工作；过压（>24V）时击穿导通，分流过压电流，保护MCU；
- 注意：限流电阻需根据过压电流计算，避免二极管过功率损坏。
五、选型与使用注意事项
- 功率余量：实际功耗需低于200mW，建议留20%~30%余量（如工作电流≤6mA）；
- 焊接温度：回流焊峰值温度≤260℃，时间≤10s，避免热应力损坏；
- 温度影响：稳压值随温度略有变化（约0.05%/℃），高精度场景需加温度补偿；
- 反向电压限制：避免长期工作在超过额定反向电压的场景，防止器件老化。
综上，BZT52C24S凭借小尺寸、低漏电流、稳定稳压特性，是消费电子、工业控制等领域小型化电路设计的实用选择。
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