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LRC LBZT52C39T1G
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- LRC LBZT52C39T1G
- Type
- LRC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LRC
- Electronic Component
- LBZT52C39T1G
- Electronic Component
- 1
- Package
- SOD-123
- Electronic Component
- Zener Diode
- Electronic Component
- 0.035g
- Electronic Component
- 1
- (Zzk)
- 350Ω
- (Zzt)
- 130Ω
- Electronic Component
- BM0264335295
- Diode
- 1
- Current(Ir)
- 100nA
- Power Dissipation(Pd)
- 500mW
- Electronic Component
- 37V~41V
- 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.
LBZT52C39T1G 产品概述
一、产品简介
LBZT52C39T1G 是乐山无线电（LRC）出品的独立式稳压二极管，采用 SOD-123 小型表面贴装封装，标称稳压值为 39V。器件面向中低功耗的稳压与过压限幅场合，兼具体积小、易贴装的特点，适合要求体积受限但需可靠稳压保护的电路设计。
二、主要电气与热参数
- 稳压值（标称）：39V；允许范围：37V ～ 41V
- 反向电流 Ir（典型）：100 nA（指在规定反向偏置下的泄漏电流）
- 最大耗散功率 Pd：500 mW（在规定散热条件下）
- 动态阻抗 Zzt：130 Ω（表示稳压区域交流小信号阻抗）
- 结区阻抗 Zzk：350 Ω（表示近拐点处阻抗特性）
- 工作结温范围：-55 ℃ ～ +150 ℃
- 封装：SOD-123，独立式二极管元件
三、特性解读与设计意义
- 稳压精度：37V～41V 的范围意味着在不同工作电流与温度下电压会有一定漂移，需在电路设计时考虑容差。
- 阻抗影响：Zzt 值较大，表明在稳压区域对电流变化较敏感，负载变化会导致稳压电压有明显变化，适合做参考或限压但非精密稳压源。Zzk 较高说明在低电流接近击穿拐点时电压稳定性较差。
- 功耗与热管理：500 mW 为最大耗散，仅在良好散热条件下成立。SOD-123 封装散热能力有限，长时间接近额定功耗会导致结温升高，影响可靠性与稳压特性。
四、典型应用场景
- 中高电压参考与限压场合（如通讯线路、传感器保护）。
- 输入浪涌或反向电压的保护与箝位。
- 需要小体积、低成本的电压钳位、退耦或参考电压来源的便携设备与工业控制板。
五、使用建议与注意事项
- 选型时应根据工作电流曲线保证二极管工作在合适的稳压区间，避免长期在高耗散状态下使用。常用的串联限流设计按公式 R = (Vs - Vz) / Iz 选择合适阻值与功率。
- PCB 布局需优化铜箔散热，增大焊盘面积可有效降低结温。
- SOD-123 为贴片器件，请按照厂家推荐回流焊规范进行焊接，避免反复加热与过高峰值温度。
- 该器件为静电敏感元件，推荐在生产与装配过程中采取常规 ESD 防护措施。
LBZT52C39T1G 以其明确的电压等级与小型化封装，适合在对体积和成本敏感、但对稳压精度要求不极端的场合作为实用的稳压/限压元件选用。
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