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DIOTEC MMSZ5227B
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DIOTEC MMSZ5227B
- Type
- DIOTEC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DIOTEC
- Electronic Component
- MMSZ5227B
- Electronic Component
- 1
- Package
- SOD-123F
- Electronic Component
- Zener Diode
- Electronic Component
- 0.029g
- Electronic Component
- 1
- (Zzt)
- 24Ω
- Electronic Component
- BM0228685089
- Diode
- 1
- Current(Ir)
- 15uA@1V
- Power Dissipation(Pd)
- 500mW
- Electronic Component
- 3.4V~3.8V
- Electronic Component
- 50℃~+150℃
- 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.
MMSZ5227B 产品概述
一、产品简介
MMSZ5227B 是 DIOTEC（德欧泰克）出品的独立式小功率稳压二极管，标称稳压值 3.6V，实际稳压范围为 3.4V～3.8V。器件以 SOD-123F 小型贴片封装提供，适用于空间受限的稳压、基准与保护电路。典型反向漏电流为 15µA（在 1V 条件下测量），结温工作范围宽（-50℃～+150℃），对小型便携设备和工业电子系统具有良好适配性。
二、主要电气与热参数
- 标称稳压值（Vz）：3.6V
- 稳压范围：3.4V ～ 3.8V
- 反向电流（Ir）：15µA @ 1V
- 阻抗（Zzt）：24Ω（表征小信号交流阻抗）
- 最大耗散功率（Pd）：500mW（在指定散热条件下）
- 结温范围（Tj）：-50℃ ～ +150℃
- 封装：SOD-123F（表面贴装）
由 Pd 与 Vz 的关系可作理论最大电流估算：Iz_max ≈ Pd / Vz ≈ 0.5W / 3.6V ≈ 139mA。但需要注意，此值为理想条件下基于最大耗散功率的计算结果，实际连续工作电流应根据 PCB 散热、铜箔面积及环境温度作进一步降额处理。
三、典型应用场景
- 低压基准电压源与基准电路（ADC、DAC 的参考）
- 输入/输出端的浪涌钳位与过压保护
- 放大器偏置与电平移位
- 电源管理中小电流稳压与监测电路
- 便携设备、消费电子、通信设备以及工业控制中对稳定 3.6V 参考的场合
四、封装与热管理建议
SOD-123F 为小型表面贴装封装，便于自动化贴装与回流焊工艺。由于器件功耗限制，应注意 PCB 设计以优化散热：
- 在焊盘下方或附近增加铜箔面积，并可视需要布置热 vias 导热到内层/底层；
- 控制回流焊温度曲线，避免超温造成封装应力或性能变化；
- 对于脉冲或短时高电流应用，评估瞬态温升并保证不超过 Pd 限值。
五、使用注意事项
- 避免长期在接近 Pd 的条件下连续使用，必要时采用散热措施或降额运行；
- 反向漏流随温度上升而增加，设计时考虑温漂影响；
- 对浪涌与瞬态事件采用适当的限流或阻尼措施，保护二极管不被脉冲能量损坏；
- 储存与装配时遵循常规潮湿敏感元件处理规范，避免焊接热损伤。
六、选型与替代
在选型时应确认稳压点偏差、阻抗与最大耗散功率是否满足系统动态与精度要求。如需替代，可选择同类 3.6V 小功率稳压二极管，比较关键参数包括 Vz 范围、Zzt、Pd 及封装形式以确保互换性。
七、总结
MMSZ5227B 以其 3.6V 的标称稳压、紧凑的 SOD-123F 封装及 500mW 的耗散能力，适合用于小功率基准与防护场合。在 PCB 散热、工作电流和温度条件得到妥善控制的前提下，可为便携与工业应用提供稳定可靠的低压稳压解决方案。若需在特定应用中获得更精确的动态特性，请参考厂商完整数据手册并进行实际评估测试。
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