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GOODWORK 1N5408
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- GOODWORK 1N5408
- Type
- GOODWORK
- Minimum package
- 1200 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- GOODWORK
- Electronic Component
- 1N5408
- Electronic Component
- 1
- Package
- DO-27
- Electronic Component
- General Purpose Diode
- Electronic Component
- 1.141g
- Electronic Component
- 1
- Electronic Component
- BM0230640073
- Current
- 3A
- Diode
- Electronic Component
- Current(Ir)
- 5uA@1kV
- (Vf)
- 980mV@3A
- Electronic Component
- 65℃~+150℃
- Electronic Component
- Electronic Component
- Electronic Component
- 1200
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1N5408 产品概述
一、产品简介
1N5408 是一款通用独立式整流二极管，由 GOODWORK（固得沃克）提供，采用 DO-27 轴向封装。器件设计用于中等功率直流整流与高压耐压场合，典型电气性能为在 3A 工作电流下正向压降约 0.98V，直流反向耐压可达 1kV，适用于需要高反向耐压与稳健浪涌能力的电源电路。
二、主要技术参数
- 二极管配置：独立式（轴向 DO-27 封装）
- 正向压降：Vf = 0.98 V @ IF = 3 A（典型）
- 直流反向耐压：Vr = 1 kV
- 额定整流电流：IF(AV) = 3 A
- 反向电流：Ir = 5 µA @ Vr = 1 kV（典型，随温度升高会增加）
- 非重复峰值浪涌电流：Ifsm = 100 A（一次性或短时冲击）
- 工作结温范围：-65 ℃ ~ +150 ℃
三、性能要点与计算
在连续 3A 正向电流下，器件正向功耗约为 P = Vf × IF ≈ 0.98 V × 3 A ≈ 2.94 W。该功耗需要通过合理的散热措施（大尺寸金属端、散热片或良好通风）来管理，避免结温过高引起寿命和漏电流恶化。Ifsm = 100 A 提供了对启动浪涌或短时过流的保护能力，但不适合反复的高幅度冲击。
四、典型应用场景
- 工业电源整流桥与单相整流
- 高压电源与偏置电路（要求 1 kV 反向耐压）
- 充电器、逆变器与电机驱动辅助电路
- 需要稳健浪涌承受能力的电路（开机冲击电流吸收）
五、热管理与使用建议
- 在接近额定电流工作时，必须考虑结温与环境温度的影响，对器件进行热设计与散热布局；可采用金属固定座、散热片或强迫风冷。
- 反向漏电流 Ir 随温度升高显著增加，高温环境下应降低工作电流或选用更高规格器件。
- Ifsm 为非重复峰值，应避免重复性或长期的浪涌，否则会降低可靠性。
- 设计时留有电压裕量，避免长期在 Vr 极限下工作，尤其是含有尖峰或干扰的电源系统，建议加入抑制元件（如 RC、TVS）以保护二极管。
六、封装与安装注意
DO-27 轴向封装适合穿孔安装或卡座固定，机械强度较好。焊接时避免对封装体进行长时间高温加热，推荐快速焊接工艺。引脚可做适当弯折以减小机械应力，装配时保证良好接触与绝缘间距以满足高压要求。
七、选型建议与替代思路
在选型时，应根据系统最大反向电压、平均整流电流与允许峰值浪涌来确认 1N5408 是否满足需求。若系统对开关速度或正向压降有更高要求，可考虑快恢复或肖特基方案；若工作电流更高，则需选择更大电流等级或并联并注意电流均分问题。
八、结论
GOODWORK 的 1N5408（DO-27）是一款面向高反向耐压与中等整流电流应用的通用整流二极管，具有较低的正向压降和良好的浪涌承受能力。适用于高压整流、电源保护等场合。最终设计中请以厂家完整数据手册为准，并结合实际环境做热设计与可靠性评估。
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