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MCC BZT52C12-TP BZT52C12
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MCC BZT52C12-TP
- Type
- MCC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MCC
- Electronic Component
- BZT52C12-TP
- Electronic Component
- 1
- Package
- SOD-123
- Electronic Component
- Zener Diode
- Electronic Component
- 0.033g
- Electronic Component
- 1
- (Zzk)
- 150Ω
- (Zzt)
- 25Ω
- Electronic Component
- BM0230032974
- Diode
- 1
- Current(Ir)
- 100nA@8V
- Power Dissipation(Pd)
- 500mW
- Electronic Component
- 11.4V~12.7V
- Electronic Component
- 65℃~+150℃
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BZT52C12-TP 产品概述
一、产品简介
BZT52C12-TP 是美微科（MCC）生产的稳压二极管，标称稳压值 12V，常见封装为 SOD-123。该器件适用于小功率基准、过压保护和电压钳位场合，体积小、成本低、工艺成熟，适合消费电子、仪表和通信前端等对空间与成本敏感的应用。
二、主要电气参数
- 稳压值（标称）：12V；允许范围：11.4V ~ 12.7V（典型生产公差）。
- 反向漏电流 Ir：100nA @ 8V（低漏电流，适合低功耗应用和高阻抗测量电路）。
- 稳压阻抗 Zzt：25Ω；动态阻抗 Zzk：150Ω（反映在不同测试点和电流下的稳压性能）。
- 工作结温范围：-65℃ ~ +150℃，适应较宽温度范围的工业级应用。
- 耗散功率 Pd：资料中存在两种常见标注（200mW / 500mW），请以采购时的厂家数据表为准；SOD-123 封装受散热限制较大，实际允许功耗随 PCB 散热条件显著变化。
三、特性与性能解读
- 低漏电流（100nA@8V）：在高阻抗或待机态电路中，能最大程度降低静态损耗和误差。
- 中等稳压阻抗（Zzt=25Ω）：在有小幅电流波动的应用中仍能保持相对稳定的输出；若需更严格的稳压精度，应配合更大的偏置电流或选择低阻抗器件。
- 宽温度范围：适合户外或工业环境，但需注意高温下漏电流和功耗能力会下降。
四、典型应用场景
- 电源轨短路或过压钳位保护。
- 低功耗参考源、基准电压点。
- 模拟前端的电压钳位与保护。
- 便携与消费电子的局部稳压要求。
五、使用建议与热管理
- 功耗与热设计：若采用资料中 500mW 标称，Iz_max ≈ 500mW / 12V ≈ 41mA；若为 200mW，则 Iz_max ≈ 16mA。实际电流应留有安全裕量，并考虑 PCB 铜箔散热和环境温度。
- PCB 布局：增加焊盘面积、接地铜箔，靠近散热通路布线可以显著提升可用功耗。SOD-123 为小封装，建议在样机上做热成像或测温验证。
- 温漂与漏电：高温下漏电会增加，稳压点略有漂移，关键电压参考场合应做温度校准或选择更高精度器件。
- 保护元件配合：在作为钳位器件使用时，串联限流电阻或配合保险元件可以避免瞬态浪涌导致器件超耗散。
六、选型与替代
选择时务必核对厂家完整数据表（Pd、测试电流、最大反向功率和温度系数等）。若需要更低动态阻抗或更高功率，考虑更大封装或线性稳压方案；若更严格的漏电限制或更小温漂，可选高精度基准源或低漏电的专用齐纳。
总结：BZT52C12-TP（MCC、SOD-123）是一款适用于小功率稳压和钳位保护的齐纳二极管，以 12V 稳压为主。其低漏电、适中阻抗和广温范围使其在众多低成本、小尺寸设计中有良好适配性，但在功耗和热管理方面需谨慎设计并以厂方数据表为准。
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