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SILAN SFR80F40PS
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- SILAN SFR80F40PS
- Type
- SILAN
- Minimum package
- 600
Technical parameters
- Electronic Component
- SILAN
- Electronic Component
- SFR80F40PS
- Electronic Component
- 1
- Package
- TO-247S-3
- Electronic Component
- Fast Recovery / High-Efficiency Diode
- Electronic Component
- 6.093g
- Electronic Component
- 1
- Electronic Component
- BM0231055278
- Current
- 40A
- Diode
- 1
- Current(Ir)
- 10uA@400V
- (Vf)
- 1.85V@40A
- Electronic Component
- 40℃~+150℃
- Electronic Component
- 600
- Voltage Rating(Vr)
- 400V
- (Trr)
- 60ns
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SFR80F40PS 产品概述
一、产品简介
SFR80F40PS 是士兰微（SILAN）推出的一款快恢复/高效率双二极管器件，采用1对共阴极（两个阴极引脚并联为公共阴极）设计，封装为 TO-247S-3。器件针对高电流整流与开关电源应用优化，兼顾较低正向压降与快速反向恢复，适合要求高效率与高可靠性的功率电路。
二、主要特性
- 1对共阴极结构，便于桥式或半桥结构布线。
- 正向压降 Vf = 1.85V @ If = 40A，导通损耗可通过散热管理降低。
- 直流反向耐压 Vr = 400V，适用于中高压整流场合。
- 反向电流 Ir = 10 μA @ 400V，漏泄小，有利于效率与静态损耗控制。
- 反向恢复时间 Trr = 60 ns，明显优于传统慢恢复器件，降低开关损耗与噪声。
- 工作结温范围 -40 ℃ 到 +150 ℃，满足严苛温度环境需求。
三、电气参数要点
典型连续整流电流 40A，在 If = 40A 时 Vf = 1.85V，对应理论导通功耗 Pd ≈ 74W（Pd = Vf×If），因此在实际应用中必须配合足够的散热系统与适当的电流退载策略。反向漏电与高 Vr 值使其适合高压整流与 PFC 前端。
四、热管理与封装
TO-247S-3 封装提供良好的机械强度与热扩散路径。推荐在金属散热片或强制风冷条件下使用，必要时结合导热垫或绝缘垫片。安装时注意良好接触面与适当预紧力，避免因热阻过大导致结温升高。
五、典型应用场景
- 开关电源（SMPS）输出/回收整流。
- 功率因数校正（PFC）前端整流。
- 逆变器与电机驱动中的续流/钳位二极管。
- 太阳能逆变器、中高压整流模块等。
六、使用建议与注意事项
- 充分考虑 Vf 在高电流下带来的导通损耗并设计散热余量。
- 在高频开关环境下，Trr 对电路开关损耗和电磁干扰有直接影响，必要时配合 RC 吸收或软开关方案优化。
- 避免长期在最大结温边界工作，建议留有热裕量并按实际环境做功率降额。
七、可靠性与测试建议
建议在开发阶段进行热仿真、结温测量与循环功率测试，评估散热结构与寿命。对突发电压/浪涌可做峰值耐受与重复冲击测试，验证反向恢复期间的应力承受能力。
八、封装与订购信息
器件型号：SFR80F40PS；品牌：SILAN（士兰微）；封装：TO-247S-3；主要电气参数见产品规范。采购与替换时请参照官方数据手册与样片测试结果，确保参数与封装版本匹配。
如需我根据您的具体应用（工作电流分布、开关频率、散热条件）给出散热设计建议或并联/降额方案，可提供电路与环境信息，我将给出更详细的工程建议。
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