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CJ BZT52C4V7S
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ BZT52C4V7S
- Type
- CJ
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJ
- Electronic Component
- BZT52C4V7S
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Zener Diode
- Electronic Component
- 0.029g
- Electronic Component
- 1
- (Zzk)
- 500Ω
- (Zzt)
- 80Ω
- Electronic Component
- BM0226435652
- Diode
- 1
- Current(Ir)
- 3uA@2V
- Power Dissipation(Pd)
- 200mW
- Electronic Component
- 4.4V~5V
- 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.
BZT52C4V7S 稳压二极管产品概述
一、概述
BZT52C4V7S 是一款独立式小功率稳压（齐纳）二极管，标称稳压值 4.7V，允许稳压范围 4.4V～5.0V。器件由 CJ（江苏长电/长晶）生产，采用 SOD-323 小型 SMD 封装，适合空间受限的表面贴装应用。器件额定耗散功率为 200mW，属于低功率稳压保护与参考用途元件。
二、主要参数
- 稳压值（标称）：4.7V
- 稳压值（范围）：4.4V ～ 5.0V
- 反向电流 Ir：3 μA @ 2V
- 阻抗 Zzk：500 Ω（低电流/拐点区域）
- 阻抗 Zzt：80 Ω（测试/工作电流下）
- 最大耗散功率 Pd：200 mW
- 封装：SOD-323（表面贴装）
- 器件类型：独立式齐纳/稳压二极管
三、主要特性与优点
- 小尺寸 SOD-323 封装，适合高密度表面贴装电路。
- 低功耗设计，适用于微功率偏置与电压参照场合。
- 在测试工作电流下阻抗较低（Zzt = 80 Ω），具有一定的稳压能力；在拐点或低电流区阻抗较高（Zzk = 500 Ω），提示在极低电流时稳压性能下降。
- 低反向漏流（3 μA @ 2V），在低电压差情况下保持较小的泄漏。
四、典型应用
- 低功耗基准电压源与偏置电路（可作为简单电压参考或稳压节点）。
- 信号线或电源线的轻微过压保护、钳位电路。
- 便携设备与消费电子中对空间和功耗敏感的稳压/保护场合。
- 作为分压/稳压组合电路中的局部稳压元件。
五、设计与使用注意事项
- 功率限值：Pd = 200 mW，应考虑封装散热能力并做温度/功率折减。理论最大稳压电流 Iz_max ≈ 200mW / 4.7V ≈ 42.6 mA，但实际应留有裕量（建议长期工作电流明显低于该值，例如 ≤ 10–20 mA）。
- 串联限流：在用作稳压时需串联电阻 R = (Vin - 4.7V) / Iz，根据所需 Iz 与最大功率计算电阻与功耗。
- 稳压精度：器件稳压范围为 4.4–5.0V，且低电流区阻抗高，不能替代高精度参考源；对精度敏感的场合应采用专用参考芯片。
- 温度影响：齐纳二极管存在温漂，设计时需评估工作温度范围对稳压点的影响并进行必要补偿。
- 封装与焊接：SOD-323 为小型薄片封装，焊接时注意回流曲线与焊盘热量设计以保证可靠性。
六、封装与采购信息
- 封装：SOD-323，推荐用于自动贴片与回流焊工艺。
- 品牌：CJ（江苏长电/长晶）。
- 型号示例：BZT52C4V7S。
购买与选型时请参考厂家数据手册，确认工作电流点、温度特性及批次一致性以满足具体应用需求。
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