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YANGJIE BZT52C56S
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
13
specifications
Core information
- Product name
- YANGJIE BZT52C56S
- Type
- SOD-323
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YANGJIE
- Electronic Component
- BZT52C56S
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- 0.029g
- Electronic Component
- 1
- Electronic Component
- BM0229283407
- 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.
BZT52C56S 产品概述
一、概述
BZT52C56S 是扬杰（YANGJIE）生产的一款独立式稳压二极管（齐纳二极管），标称稳压值 56V，适用于高电压基准、过压保护与低功耗稳压场合。器件采用 SOD-323 小尺寸封装，适合贴片组装，体积小、成本低，便于在空间受限的电路中作为电压基准或箝位元件使用。
二、主要电气参数
- 标称稳压值：56V（范围 53V ~ 59V）
- 最大耗散功率 Pd：300 mW（环境与散热条件受限时需降额使用）
- 反向电流 Ir：100 nA @ 42V（反向漏电小，适合高阻抗基准应用）
- 小信号阻抗 Zzt：200 Ω（表示在测试电流下的动态阻抗）
- 工作结温范围：-55℃ ~ +150℃
这些参数表明该型号适合低至中等电流的高压稳压场合，注意动态阻抗与温度漂移对稳压精度的影响。
三、典型应用
- 高压基准电压源（低功耗）
- 输入过压保护（作为箝位器件）
- 电路偏置与参考（特别是对精度要求不高的场合）
- 测试与测量电路中的电压限幅
四、设计与使用注意事项
- 功率限额：在理想散热下最大耗散 300 mW，因此稳压电流 Iz_max ≈ 300mW / 56V ≈ 5.3 mA。实际应用中应留有安全余量并随环境温度做降额。
- 电阻限流：作为分流稳压器使用时需在输入端串联限流电阻，计算公式：R = (Vin - Vz) / (Iz + Iload)，并确保在最坏工况下耗散功率不超过额定值。
- 动态阻抗与稳定性：Zzt=200Ω 表明电压随电流变化显著，若需更稳定的参考，应在合适的工作电流点上测试并考虑温度补偿或后级稳压。
- 温度影响：高温时稳压值和漏电流会变化，设计时应参考器件温度特性曲线并在高温下验证性能。
五、封装与可靠性
SOD-323 封装适合贴片组装，焊接时遵循厂商回流曲线与焊接可靠性规范（MSL 要求）。由于封装热阻相对较大，器件靠近热源或在高环境温度下工作时需关注结温上升，必要时改善散热或降低通过电流以保护器件寿命。
六、选型建议与替代
若电路需更低动态阻抗或更高精度，可考虑参考电压更稳定的专用基准芯片或更高功率的稳压二极管；若需要更高功率承受能力，可选择更大封装或功率等级更高的齐纳管。购买时注意品牌与批次一致性，以保证稳压值分布在 53V~59V 范围内。
总结：BZT52C56S 适合空间受限、工作电流较小且对稳压精度要求中等的高压稳压与保护场合。合理的限流与热管理是确保长期可靠工作的关键。
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