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1N4004
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YONGYUTAI 1N4004
- Type
- YONGYUTAI
- Minimum package
- 2000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YONGYUTAI
- Electronic Component
- 1N4004
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- General Purpose Diode
- Electronic Component
- 0.1g
- Electronic Component
- 1
- Electronic Component
- BM0226337780
- Current
- 1A
- Diode
- Electronic Component
- Current(Ir)
- 5uA@400V
- (Vf)
- 1.1V@1A
- Electronic Component
- 65℃~+175℃
- Electronic Component
- Electronic Component
- Electronic Component
- 2000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1N4004（YONGYUTAI 永裕泰）产品概述
一、产品简介
YONGYUTAI（永裕泰）型号为1N4004的通用整流二极管，属于独立式封装的整流器件。该器件设计用于一般功率转换与整流场合，具有良好的耐压与抗浪涌能力，适合交流/直流电源、整流桥、保护与钳位等通用应用。封装为SMA（DO-214AC），便于表面贴装与自动化生产。
二、主要电气性能
- 正向压降（Vf）：约1.1V @ IF = 1A，适合中小电流整流，正向功耗可控。
- 额定整流电流（IF）：1A，适合一般低功率电源与护罩电路。
- 直流反向耐压（VR）：400V，能够承受中高电压整流与阻断要求。
- 反向漏电流（IR）：典型值5µA @ VR = 400V，低漏电有利于提高整流效率和降低待机损耗。
- 非重复峰值浪涌电流（IFSM）：30A，能够承受启动或短时冲击电流（非重复），提高抗冲击能力。
三、封装与机械特性
- 封装类型：SMA（DO-214AC），为表面贴装类型，体积小、易于自动化贴片与回流焊接。
- 适用于SMT工艺的PCB布局，良好的热传导通过焊盘与PCB铜面散热。
- 小体积意味着热阻相对较高，实际应用中要注意PCB散热设计以保证器件长期可靠性。
四、典型应用场景
- 桥式整流器与单向整流模块：适用于中高压整流（如400V整流链路）。
- 电源滤波与后级整流：用于开关电源或线性电源的整流与保护。
- 极性保护、反接保护电路：利用低漏电与较高耐压保护电路不被反接损坏。
- 浪涌吸收与钳位电路：短时承受浪涌电流，配合限流器件使用可提升系统抗扰度。
五、使用与设计注意事项
- 热管理：在连续1A工作条件下，须评估正向功耗（Vf × IF）并通过铜箔、散热片或良好布线来降低结温，避免因过热导致漏电或器件寿命下降。
- 浪涌处理：IFSM为30A为非重复峰值浪涌能力，若系统存在频繁冲击或更高浪涌，应采用更大浪涌能力的器件或并联/并用抑制器件。
- 反向漏电随温度上升：在高温环境下，IR会显著增加，设计时应考虑漏电对电路静态功耗与触发门槛的影响。
- 封装兼容性：SMA封装适合SMT制程，焊盘设计应遵循厂家推荐的PCB封装规范以确保焊接可靠性。
六、选型建议与可靠性
选择1N4004（YONGYUTAI）时，应确认工作电压、连续电流及浪涌条件满足器件参数；对热应力与工作环境进行余量设计。对于要求更高频繁浪涌或更低正向压降的场合，可考虑更大规格或低Vf的肖特基二极管，但在高耐压（400V）需求下，1N4004在成本与性能上具有良好平衡。
总结：YONGYUTAI 1N4004为一款面向通用整流与保护的中高耐压、1A级别独立式整流二极管，SMA封装适配现代SMT工艺，适用于多数中低功率电源与保护电路。选用时重点关注热管理与浪涌保护设计，可在保证可靠性的前提下发挥其稳定的整流与阻断能力。
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