SIYU R PSD300-170 功率缓冲二极管 Power Snubber Diode 1.特征 Features ● 小型化，高可靠性 Miniaturization，High Reliability ● 替代传统的 RCD 缓冲电路 Substitution traditional RCD snubber circuit ● 钳位电压稳定 Steady Clamping voltage ● 高温焊接保证 High temperature soldering guaranteed 260℃/10 秒，9.5mm 引线长度 260℃/10s，9.5mm lead length ● 引线和管体皆符合 RoHS 标准 Lead and body according with RoHS standard Package Dimensions Case:DO15L Min 25.4 7.5±0.2 Min 25.4 Unit:mm 2.机械数据 Mechanical Data 极性标识：FR 阴极端用色环标识 Polarity：Color band denotes FR cathode end 3.极限值和温度特性 TA = 25℃ 除非另有规定 Maximum Ratings & Temperature Characteristics Ratings at 25℃ ambient temperature unless otherwise specified. 单位 项目 参数 条件 ZD FR Unit Item Symbol Conditions 10/1000us 最大反向功率损耗 300 W PRSM Non-repetitive Maximum surge reverse power 10/1000us 最大反向浪涌电流 1.1 A IRSM Non-repetitive Maximum surge reverse Current 最大反向电压 VRM 145 600 V Maximum reverse voltage 储存温度 Tstg -40~150 ℃ Storage temperature 最高结温 Tj 150 ℃ Operating junction temperature 电特性 TA = 25℃ 除非另有规定。 Electrical Characteristics Ratings at 25℃ ambient temperature unless otherwise specified. MIN.155 转折电压 V VBR IT=1mA TYP.170 Breakdowm voltage MAX.185 钳位电压 Vcl Ipp=1.1A MAX.280 V Clamping voltage VR=145V MAX.5.0 漏电流 IR uA Leakage current VR=600V MAX.5.0 IF=0.5A 最大反向恢复时间 TRR MAX.250 ns IR=1.0A Max Reverse Recovery Time IRR=0.25A 结到引线 典型热阻 RθJL MAX.13 MAX.13 ℃/W Typical thermal resistance Junction to lead 大昌电子 DACHANG ELECTRONICS SIYU R PSD300-170 4.特性曲线 Characteristics Curves 图 1-转折电压温度特性曲线 Fig.-Breakdown Voltage & Temperature Characteristics Curves 200 TEST 195 190 185 ) V ( e g a Vt l o V n w o d k a e r B 转折电压 180 175 170 165 TYP IR=1mA 160 0 50 100 150 结温（℃） Junction Temperature（℃） 大昌电子 DACHANG ELECTRONICS SIYU R PSD300-170 图 2- FR 漏电流温度曲线 Fig.2-FR Leakage current & Temperature Characteristics Curves 10 TEST 1 ) A u ( t An u e r r u c e g a k a e L 漏 电 流 0.1 TYP VR=600V 0.01 0 50 100 150 结温（℃） Junction Temperature（℃） 大昌电子 DACHANG ELECTRONICS SIYU R PSD300-170 图 3- Zener 漏电流温度曲线 Fig.3-Zener Leakage current & Temperature Characteristics Curves 10 TEST 1 ) A u ( t An u e r r u c e g a k a e L 漏 电 流 0.1 TYP VR=145V 0.01 0 50 100 150 结温（℃） Junction Temperature（℃） 大昌电子 DACHANG ELECTRONICS SIYU R 5.典型用途 PSD300-170 Typical Application 应用于反激式电源的缓冲电路 Applied in fly back power’s snubber circuit Power Snubber Diode R C D Q 大昌电子 DACHANG ELECTRONICS