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JUXING BZT52C18
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JUXING BZT52C18
- Type
- JUXING
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- JUXING
- Electronic Component
- BZT52C18
- Electronic Component
- 1
- Package
- SOD-123W
- Electronic Component
- Zener Diode
- Electronic Component
- 0.034g
- Electronic Component
- 1
- (Zzk)
- 225Ω
- (Zzt)
- 45Ω
- Electronic Component
- BM0226478992
- Diode
- 1
- Current(Ir)
- [email protected]
- Power Dissipation(Pd)
- 500mW
- Electronic Component
- 16.8V~19.1V
- 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.
BZT52C18 产品概述
一、产品简介
BZT52C18 是钜兴（JUXING）推出的一款独立式稳压二极管，标称稳压值 18V，适用于小功率电压参考和过压钳位场合。该器件采用 SOD-123W 表面贴装封装，体积小、易于自动贴片生产，适合消费电子、仪表和通信终端等空间受限且对功耗要求不高的电路。
二、主要参数
- 稳压值（标称）：18V
- 稳压值（范围）：16.8V ~ 19.1V
- 耗散功率 Pd：500 mW（在指定散热条件下）
- 工作结温范围：-55 ℃ ~ +150 ℃
- 反向电流 Ir：100 nA @ 12.6 V（出厂测试条件）
- 阻抗：Zzk = 225 Ω；Zzt = 45 Ω
- 品牌：JUXING（钜兴）
- 封装：SOD-123W
三、性能与特性
- 小功率稳压：500 mW 的耗散能力适合低电流稳压或参考源应用。
- 稳压精度：标称 18V，实际稳压范围为 16.8V~19.1V，需根据电路工作点选择适当的测试电流以获得理想稳压点。
- 低漏电：在给定测试条件下，反向漏电仅为 100 nA，利于低功耗系统。
- 阻抗特性：器件提供两项阻抗参数（Zzk、Zzt），反映在不同工作点或测试条件下的小信号阻抗行为，影响负载响应与稳压性能（详细数值请参见厂方完整数据表）。
四、典型应用场景
- 低功耗参考电压源和偏置电路。
- 电源次级的过压钳位与瞬态保护。
- 运放、比较器等模拟电路的参考与偏置稳定。
- 小型便携设备、传感器节点及通信模块的稳压保护。
五、使用与注意事项
- 热管理：SOD-123W 为小型封装，500 mW 的耗散能力在无良好散热时需降额使用；在高环境温度下应按厂方热阻及结温限制进行功率降额。
- 工作点选择：稳压值受测试电流影响较大，应根据所需稳压精度选择合适的电流；注意 Zener 的“击穿特性区”与动态阻抗变化。
- 漏电考量：给出的 Ir 测试点为 12.6 V，若在 18 V 环境下需参考完整漏电曲线并考虑温漂。
- 并联与散热：若需要更大功率，可考虑并联多只并配限流元件或改用功率更高的稳压器件。
六、封装与焊接建议
- 封装：SOD-123W，适合回流焊工艺。
- 焊接：遵循厂方回流温度曲线与 PCB 阵列热设计，保证焊盘尺寸和焊膏量以利于热流散；避免长时间高温暴露导致性能漂移。
总结：BZT52C18（JUXING）是一款面向低功耗、小体积稳压与钳位应用的 18V 独立稳压二极管，优点在于封装紧凑、漏电小，适用于空间受限且功率需求不大的场合。在设计时应重视热管理、工作电流选择与实际稳压范围的匹配，以确保长期稳定工作。
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