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LGE 1N4733A
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- LGE 1N4733A
- Type
- LGE
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- LGE
- Electronic Component
- 1N4733A
- Electronic Component
- 1
- Package
- DO-41
- Electronic Component
- Zener Diode
- Electronic Component
- ±5%
- Electronic Component
- 0.3g
- Electronic Component
- 1
- (Zzk)
- 550Ω
- (Zzt)
- 7Ω
- Electronic Component
- BM0226469302
- Diode
- 1
- Current(Ir)
- 10uA@1V
- Power Dissipation(Pd)
- 1W
- Electronic Component
- 4.85V~5.36V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1N4733A（5.1V）稳压二极管 产品概述
一、产品简介
1N4733A 为独立式（单体）稳压二极管，标称稳压值为 5.1V，常用于低功率精密稳压、参考源与浪涌/钳位保护等场合。该器件由 LGE（鲁光）生产，封装为 DO-41 轴向引线式，利于通孔安装与手工焊接。
二、主要参数
- 标称稳压值：5.1V
- 稳压范围：4.85V ~ 5.36V（出厂分选范围）
- 最大耗散功率 Pd：1W（在指定散热条件下）
- 反向电流 Ir：10 μA @ 1.0V（典型量级，实际以出厂测试为准）
- 阻抗（Zzk）：550 Ω（低电流区/拐点阻抗）
- 阻抗（Zzt）：7 Ω（测试点动态阻抗）
- 工作结温范围：-65 ℃ ~ +200 ℃
- 封装：DO-41（轴向引线）
- 品牌：LGE（鲁光）
三、性能与特性
1N4733A 在中等反向电流下表现出稳定的稳压特性，Zzt=7 Ω 表明在额定测试电流附近电压随电流变化较小，适合作基准电压或简易稳压源。Zzk 值较高，表示在非常低电流时伏降恢复区较陡，启动特性需要注意。器件反向漏电处于微安级，对低功耗电路影响较小。
四、典型应用
- 作为稳压/参考源：并联于负载与串联限流电阻形成简单的稳压单元，适用于供电电压稳定要求不高的场合。
- 信号钳位与过压保护：用于限制器件输入或模拟信号峰值。
- 电源后级补偿与噪声抑制：配合电容构成滤波与参考网络。
- 工业与温度环境宽泛的电子设备，因其工作结温范围广，适应性好。
五、封装与热管理
DO-41 轴向封装便于通孔安装，但散热依赖于引线与周围环境。1W 功耗在无额外散热条件下需注意结温上升：当工作电流接近器件允许值或环境温度较高时，应增加空气对流或减小平均功耗以避免过热并确保长期可靠性。安装时保证引线良好散热通道并避免紧密堆叠。
六、选型与使用要点
- 确认电路中的稳压工作电流与器件在该电流下的稳压误差是否满足要求；必要时参考实际样品的 V–I 特性曲线。
- 设计串联限流电阻时，考虑最坏情况的输入电压、负载变动与器件最大耗散功率。
- 在对温漂敏感的应用，应参考厂商温度系数或做温度标定。
- 对于更高功率或更低动态阻抗的需求，可选择更高瓦数或功率型稳压二极管。
七、储存与可靠性
建议干燥环境储存，避免潮湿与机械应力。焊接时尽量缩短峰值加热时间并避免直接对结体加热，按通孔元件通用焊接规范操作。出厂前应进行电参数测试以确认稳压范围与漏电等关键指标。
总结：1N4733A（5.1V）为一款常见、经济的 1W 轴向稳压二极管，适合通用稳压、钳位与参考用途。在设计中应关注功耗散热与稳压工作电流以保证长期稳定运行。
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