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DOWO BZT52C7V5S
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO BZT52C7V5S
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- BZT52C7V5S
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Zener Diode
- Electronic Component
- 0.039g
- Electronic Component
- 1
- (Zzk)
- 80Ω
- (Zzt)
- 15Ω
- Electronic Component
- BM0264548657
- Diode
- 1
- Current(Ir)
- 1uA
- Power Dissipation(Pd)
- 200mW
- Electronic Component
- 7V~7.9V
- 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.
BZT52C7V5S（DOWO 东沃）产品概述
一、产品简介
BZT52C7V5S 是东沃（DOWO）推出的一款小功率齐纳稳压二极管，采用 SOD-323 小封装，单只独立式器件。该型号标称稳压值为 7.5V，稳压范围 7.0V～7.9V，具有低击穿阻抗、良好的稳压性能与高可靠性，适用于便携式电子设备的基准/保护、低功耗局部稳压及浪涌钳位等场合。
二、主要电气参数
- 稳压值（标称）：7.5V
- 稳压值范围：7.0V ～ 7.9V
- 反向电流（Ir）：1 μA（规格条件下）
- 耗散功率（Pd）：200 mW（最大）
- 动态阻抗（Zzt）：15 Ω（典型/测试条件下）
- 低电流阻抗（Zzk）：80 Ω（典型/测试条件下）
- 封装：SOD-323，表面贴装
三、特点与优势
- 低击穿阻抗：在工作点附近具备较小的动态阻抗，提升稳压精度、减小纹波影响。
- 小型封装：SOD-323 尺寸紧凑，利于高密度 PCB 布局和便携设备应用。
- 低漏电：典型反向电流仅为 1 μA，有利于低功耗系统的静态能耗控制。
- 可靠性高：结构与工艺稳定，适合长期可靠运行的消费类和工业级应用。
- 最大功率耗散 200 mW：满足轻负载稳压与瞬态吸收需求，但需注意热管理。
四、典型应用场景
- 参考电压源与低功耗局部稳压电路
- 电源浪涌钳位与瞬态过压保护
- 信号线夹位与基准源
- 便携式设备、消费电子、测量仪器中对高稳定性电压需求的场合
五、使用与设计注意事项
- 功率与散热：SOD-323 为小尺寸封装，尽管最大耗散为 200 mW，但在实际 PCB 环境中需考虑布局与铜箔散热，建议在器件长期工作时按功率热降额设计，避免接近最大耗散值。
- 串联限流电阻计算：在作齐纳并联稳压时，串联电阻 Rs 的选择应满足在无负载和有负载情况下齐纳电流 Iz 在合适范围内。基本关系：Iz = (Vin − Vz) / Rs − Iload；齐纳功耗 Pz = Vz × Iz，不应超过 Pd。
- 工作电流与阻抗：尽量在器件推荐的测试/工作电流附近使用，以发挥低 Zzt 的稳压优势；过低电流下阻抗（Zzk）上升，稳压精度下降。
- 反向漏流：在极低工作电流与高温条件下，漏电可能上升，影响超低功耗设计，应在电路仿真或样机测试中确认。
- 焊接与温度：遵循制造商提供的回流焊接温度曲线，避免过高温度损伤封装或改变参数稳定性。
六、封装与选购
- 封装形式：SOD-323，适合自动贴装与回流焊流程。
- 品牌与型号：DOWO（东沃）出品，型号 BZT52C7V5S。采购时请注意确认完整规格书与批次，必要时索取样品进行电路验证。
总结：BZT52C7V5S 为一款面向小功率、要求高稳压精度与低漏电的齐纳二极管，SOD-323 小封装便于集成于便携与高密度电路中。在设计中需关注功率限值与散热条件，合理选择工作电流与串联元件以保证长期稳定可靠运行。
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