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DOWO BZT52C22S
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO BZT52C22S
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- BZT52C22S
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Zener Diode
- Electronic Component
- 0.028g
- Electronic Component
- 1
- (Zzk)
- 250Ω
- (Zzt)
- 55Ω
- Electronic Component
- BM0264356184
- Diode
- 1
- Current(Ir)
- 100nA
- Power Dissipation(Pd)
- 200mW
- Electronic Component
- 20.8V~23.3V
- 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.
BZT52C22S 产品概述
一、产品简介
BZT52C22S 为 DOWO（东沃）品牌的一款小功率稳压二极管，采用 SOD-323 表面贴装封装，标称稳压值 22V，适用于小型电源稳压、参考电压源和过压保护等场合。器件结构为独立式齐纳二极管，体积小、可靠性高，便于自动贴装与批量生产。
二、主要电气参数
- 标称稳压值：22V（允许范围 20.8V ~ 23.3V）
- 反向电流（Ir）：100nA（在规定反向电压条件下）
- 最大耗散功率（Pd）：200mW（封装及环境温度限制下）
- 齐纳阻抗：Zzt = 55Ω（在测试电流下的稳态阻抗）
- 短路或低电流区阻抗：Zzk = 250Ω（低电流区的动态阻抗）
这些参数表明该型号在工作区具有较低的击穿阻抗和较小的漏电流，适合对电压稳定性有较高要求的低功耗应用。
三、特点与优势
- 齐纳击穿阻抗低，电压调节性能好，可减少串联限流元件对稳压效果的影响；
- 最大耗散功率 200mW，满足小功率稳压和参考电压场景；
- 漏电流小，降低待机能耗，有利于电池供电和低静态功耗设计；
- SOD-323 小封装，利于高密度 PCB 布局和自动化贴装，提高生产效率；
- 设计注重稳定性与可靠性，适合长寿命、低维护需求的电子设备。
四、应用场景
- 小型开关电源辅助稳压与参考电压源；
- 信号处理电路的基准电压与偏置电路；
- 过压保护与电路钳位（配合限流电阻使用）；
- 电池供电设备、便携式仪器及消费电子的小功率稳压需求。
五、使用与注意事项
- 由于 Pd 为 200mW，使用时需注意环境温度和封装散热条件，避免长期在额定功耗下工作；
- 选择适当的限流电阻以控制工作电流，避免超出耗散能力；
- 在低电流区域，稳压值受 Zzk 影响较大，应根据电路工作点评估稳压精度；
- 焊接时遵守 SMD 焊接工艺规范，避免过热导致封装或内芯损伤。
六、封装与采购
SOD-323 封装尺寸小、重量轻，适配常见自动贴片生产线。选型时建议关注稳压电压范围、公差等级及环境温度对 Pd 的影响，必要时与供应商确认具体测试条件与曲线图以满足设计要求。
总结：BZT52C22S 以其低击穿阻抗、低漏电流与 SOD-323 小封装，适合用于各类小功率稳压与参考电压场合，但在热管理与工作电流选择上需注意功耗限制与稳压精度。
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