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YANGJIE BZT52C12
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
13
specifications
Core information
- Product name
- YANGJIE BZT52C12
- Type
- SOD-123
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YANGJIE
- Electronic Component
- BZT52C12
- Electronic Component
- 1
- Package
- SOD-123
- Electronic Component
- 0.033g
- Electronic Component
- 1
- Electronic Component
- BM0230631407
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BZT52C12 产品概述
一、主要参数与特性
BZT52C12 是扬杰（YANGJIE）出品的稳压二极管，标称稳压值 12V，允许稳压范围 11.4V–12.7V；反向漏电流 Ir = 100 nA（@8.0V）；最大耗散功率 Pd = 500 mW；稳态阻抗 Zzt = 25 Ω，低电流区阻抗 Zzk = 150 Ω；工作结温范围 -55℃ 至 +150℃。封装为 SOD-123，适合表贴工艺与小型化电路板布局。
二、功能与优势
- 低漏电：Ir 在低电压下仅 100 nA，利于高阻抗、低功耗电路作为参考或偏置源。
- 小型封装：SOD-123 对应紧凑 PCB 布局与自动化贴装，适合便携与消费类设备。
- 良好稳压性能：Zzt=25Ω 表明在规定测试电流下稳压能力较好；Zzk=150Ω 则提示在微小电流附近有较陡的 knee 特性，需要在选型时关注低电流精度。
- 宽温度范围：-55~+150℃，适用于工业级环境。
三、典型应用场景
- 作为低功耗的基准电压或稳压源，用于传感器供电、基准偏置和小功率模拟电路。
- 电压钳位与浪涌保护，限制瞬态过压。
- 模拟前端、ADC 采样电路的参考或保护元件。
- 便携式设备、通信终端、仪器仪表中对体积与成本敏感的稳压需求。
四、热管理与选型建议
理论上最大稳态电流 Iz(max)=Pd/Vz ≈ 500 mW / 12 V ≈ 41.7 mA。但 SOD-123 封装热阻较大，实际连续工作应做热降额：建议在常温下连续稳压电流控制在 10–20 mA 范围内以保证长期可靠性，并在高环境温度下进一步降低。精确判断请参考器件手册给出的结到环境热阻 θJA，按 Tj = Ta + Pd·θJA 计算结温并确保 Tj ≤ 150℃。需要更高功率时，可选用大封装器件或并联多只二极管（需注意分流不均）。
五、使用注意事项
- 漏电随温度上升显著增加，高温环境下应重新评估对电路影响。
- 在极低工作电流时，Zzk 较大，稳压点可能不稳定，建议保证稳压电流在制造商推荐的测试点附近以获得最佳稳压精度。
- 采用 SOD-123 表面贴装，遵循回流焊温度曲线，避免过热造成性能退化。装配时留意焊盘设计与热扩散。
- 对静电敏感部位做好 ESD 防护，测试时按标准测量 Irr、Vz 等参数以核对批次一致性。
六、替代与扩展方案
若电流或功率需求超过该型号能力，建议选用更大功率的稳压二极管（如 SMB、SOD-123F 等封装）或使用线性稳压芯片/低压差参考源以提高稳定性与温漂性能。
总结：BZT52C12（YANGJIE，SOD-123）适合用于小体积、低功耗场合的 12V 稳压与钳位，具有低漏电和较好的稳态阻抗特性。在设计时应重视功耗计算与热降额、工作电流范围以及温度对漏电和稳压精度的影响，以确保可靠运行。
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