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Jingdao Microelectronics MM1Z4V7
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Electronic MM1Z4V7
- Type
- Jingdao Microelectronics
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic
- Electronic Component
- MM1Z4V7
- Electronic Component
- 1
- Package
- SOD-123
- Electronic Component
- Zener Diode
- Electronic Component
- 0.036g
- Electronic Component
- 1
- (Zzt)
- 130Ω
- Electronic Component
- BM0230630732
- Diode
- 1
- Current(Ir)
- 2uA@1V
- Power Dissipation(Pd)
- 500mW
- Electronic Component
- 4.4V~5V
- Electronic Component
- 55℃~+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.
MM1Z4V7 产品概述
一、产品简介
MM1Z4V7 为晶导微电子出品的独立式稳压（齐纳）二极管，标称稳压值 4.7V，允许范围 4.4V~5.0V，适用于小功率电压基准与浪涌/过压钳位场合。器件采用 SOD-123 表面贴装封装，结构紧凑，便于在便携与消费电子中实现空间受限的稳压或保护设计。
二、主要性能参数
- 标称稳压：4.7V（范围 4.4V~5.0V）
- 反向电流 Ir：2μA @ 1V（低漏电，随温度增加）
- 动态阻抗 Zzt：130Ω（表征小电流段的电压随电流变化）
- 功耗 Pd：500mW（器件最大耗散功率）
- 工作结温：-55℃ ~ +150℃
- 封装：SOD-123（表面贴装）
注：从功耗可计算理论最大稳流 Imax ≈ Pd / Vz ≈ 0.5W / 4.7V ≈ 106mA，但实际连续工作应考虑封装散热和安全裕量，建议远低于该值。
三、典型应用场景
- 低功耗电路的简单电压基准与偏置
- 输入浪涌或瞬态过压的钳位保护
- 电池供电设备的简易稳压/参考（低精度场合）
- 通信与消费电子的局部过压保护与电平保持
四、设计与使用建议
- 稳压电路常见连接为并联（稳压二极管并联于负载），并串联限流电阻 R：R = (Vin - Vz) / (Iz + IL)。例如 Vin=12V，IL=10mA，取 Iz=10mA，则 R ≈ (12−4.7)/(20mA) ≈ 365Ω。
- 由于 Zzt=130Ω，在小电流区电压对电流敏感，若需较稳定电压，应在稍高的偏置电流工作，但注意功耗。
- 建议长期工作电流留有裕量，常规设计将稳压二极管电流控制在额定最大电流的 30%~50% 以下，以减小自热并延长寿命（例如推荐连续电流 <50mA，具体视散热条件而定）。
- 反向漏电随温度上升显著，低电流精密参考类应用不建议使用本型号。
五、封装与焊接
SOD-123 为小型贴片封装，适合自动贴装与回流焊工艺。焊接时遵循标准回流温度曲线，避免超过器件允许的结温。器件引脚与 PCB 应有良好散热路径以利热量扩散。
六、注意事项
- 切勿超过标称 Pd 及结温范围；瞬态脉冲允许高于持续值，但应查阅厂方脉冲规范。
- 安装时注意极性标识，防止反向接反。
- 储存、搬运过程中注意防静电保护，避免损伤半导体结。
总结：MM1Z4V7 为一款适合低功耗稳压与保护用途的经济型齐纳二极管，特点为小封装、低漏电与中等稳压精度，适合空间受限的消费电子与便携设备应用。在设计时需关注工作电流、散热与动态阻抗对稳压性能的影响。
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