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CJ BZT52B15S
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ BZT52B15S
- Type
- CJ
- Minimum package
- 3000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJ
- Electronic Component
- BZT52B15S
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Zener Diode
- Electronic Component
- 0.037g
- Electronic Component
- 1
- (Zzk)
- 200Ω
- (Zzt)
- 30Ω
- Electronic Component
- BM0230080073
- Diode
- 1
- Current(Ir)
- 100nA
- Power Dissipation(Pd)
- 200mW
- Electronic Component
- 14.7V~15.3V
- Electronic Component
- 55℃~+150℃
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BZT52B15S 稳压二极管（CJ，SOD-323）产品概述
一、产品简介
BZT52B15S 是江苏长电（CJ）生产的一款小功率硅稳压二极管，封装为 SOD-323 贴片形式。该型号标称稳压值 15V，稳压范围 14.7V~15.3V，适用于空间受限、功耗较低的基准稳压与浪涌钳位场合。二极管为独立式配置，单管使用方便，便于在低电流条件下实现简单可靠的电压稳定。
二、主要电气参数
- 标称稳压：15V（范围 14.7V~15.3V）
- 反向电流 Ir：100nA（典型低泄漏，注意测量条件）
- 耗散功率 Pd：200mW（额定值，需按环境温度降额）
- 结温范围 Tj：-55℃ ~ +150℃
- 稳压阻抗 Zzt：30Ω（稳压工作区动态阻抗）
- 楔形/拐点阻抗 Zzk：200Ω（低电流区“膝”区阻抗）
三、关键特性与优势
- 小体积（SOD-323）：适合便携与高密度 PCB 布局。
- 低反向漏电：100nA 级别利于高阻抗节点和精密电压参考应用。
- 合理稳压阻抗：30Ω 在中高电流范围提供较稳定的电压，200Ω 表示在微安级电流下膝区对调节能力有限，设计时应规避长期在该区工作。
- 宽工作温度：适用于工业级温度环境。
四、典型应用场景
- 小功率基准稳压：为模拟电路、传感器供参考电压或偏置电压。
- 输入浪涌钳位/保护：保护后级器件免受瞬态过压（在有串联限流的情况下）。
- 低功耗便携设备：电池检测、过压保护、参考源等。
- 水平移位与接口保护：在数字信号线上作简单的电压钳位。
五、设计与热管理建议
- 功耗限制：Pd=200mW 时，若二极管承受接近稳压电压的电压降，则最大稳态电流约为 200mW / 15V ≈ 13.3mA。推荐在设计中留出裕度，常用工作电流应低于此值（例如 ≤10mA）。
- 串联电阻计算：R = (Vin - Vz) / Iz，Iz 应选定使二极管既工作在稳压区又不超过功耗。举例：若 Vin=30V，欲保证不超 Pd，R 最小为 (30-15)V /13.3mA ≈1.13kΩ，实际取值应更大并考虑瞬态情况。
- 热路径与 PCB 布局：SOD-323 的热能力有限，建议增大焊盘铜面积、使用多层铜平面或加热散热孔以提高功耗承载；在高环境温度下需按热阻降额处理。
- 工作点注意：避免长期在膝区（极低电流）或过高电流下运行，以免稳压不稳定或加速老化。
六、选型与测试提示
- 验证条件：查看或测试稳压值与阻抗时，应注意标注的测试电流与温度；实际系统中建议在目标工作电流与温度下抽样验证。
- 可靠性考虑：对温度循环、湿度与电应力敏感度高的应用，应评估封装抗焊接与热循环性能。
- 替代与兼容：在更高功耗需求下，考虑更大耗散能力或更低阻抗的封装/型号。
本器件适合寻求小型化、低功耗稳压与保护方案的工程设计，按上述热、功率与工作点建议合理选型与布局，可获得稳定可靠的性能表现。
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