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扬州扬杰电子科技股份有限公司 Yangzhou Yangjie Electronic Technology Co., Ltd. S-A060 Rev. 1.2, 28-Apr-14 www.21yangjie.com BY251 THRU BY255 硅整流二极管 General Purpose Rectifier ■特征 Features ■外形尺寸和印记 Outline Dimensions and Mark

• Io 3A
• VRRM 200V-1300V
• 耐正向浪涌电流能力高
• High surge current capability ■用途 Applications
• 整流用 Rectifier ■极限值（绝对最大额定值） Limiting Values (Absolute Maximum R a t i n g ) 参数名称 Item 符号 Symbol 单位 Unit 条件 Conditions BY 251 252 253 254 255 反向重复峰值电压 Repetitive Peak Reverse Voltage VRRM V 200 400 600 800 1300 正向平均电流 Average Forward Current IF(AV) A 正弦半波60Hz，电阻负载，Ta=65℃ 60Hz Half-sine wave, Resistance load, Ta=65℃ 正向（不重复）浪涌电流 Surge(Non-repetitive)Forward Current IFSM A 正弦半波60Hz，一个周期，Ta=25℃ 60Hz Half-sine wave,1 cycle, Ta=25℃ 150 结温 Junction Temperature TJ ℃ -55~+125 储存温度 Storage Temperature TSTG ℃ -55 ~ +150 ■电特性 （Ta=25℃ 除非另有规定） Electrical Characteristics (Ta=25℃ Unless otherwise specified） 参数名称 Item 符号 Symbol 单位 Unit 测试条件 Test Condition 最大值 Max 正向峰值电压 Peak Forward Voltage VFM V IFM=3.0A 1.0 反向峰值电流 Peak Reverse Current IRRM1 μA V RM=VRRM Ta=25℃ 2.5 IRRM2 Ta=125℃ 25 热阻(典型) Thermal Resistance(Typical) RθJ-A /W℃ 结和环境之间 Between junction and ambient 20 结电容 Typical junction capacitance Cj pF Measured at 1MHZ and Applied Reverse Voltage of 4.0 V.D.C. 50 1.0(25.4) MIN .375(9.50) .335(8.50) .052(1.30) .048(1.20) DIA .220(5.60) .197(5.00) 1.0(25.4) MIN (DO-201AD ) Unit: in inches (millimeters) COMPLIANT RoHS

扬州扬杰电子科技股份有限公司 Yangzhou Yangjie Electronic Technology Co., Ltd. S-A060 Rev. 1.2, 28-Apr-14 www.21yangjie.com BY251 THRU BY255 ■特性曲线（典型） Characteristics(Typical) 100 150 FIG.1 正向电流降额曲线 FORWARD CURRENT DERATING CURVE IO(A S ingle Phase Half Wave 60HZ Resisteve or Inductive Load 0.375''(9.5mm) Lead Length Ta(℃) 100 IF(A) FIG.3 典型正向特性曲线 TYPICAL FORWARD CHARACTERISTICS TJ=25℃ Pulse width=300us 1% Duty Cycle 0.01 0.6 VF(V) 0.8 1.0 1.2 1.4 0.1 100 1.0 2.01.6 1.8 IFSM︵A 周波数 Number of Cycles FIG.2 最大正向浪涌冲击耐受力 MAXIMUM NON-REPETITIVE FORWARD SURGE CURRENT 8.3ms Single Half Sine Wave JEDEC Method 12 4 6 8 10 20 40 60 80 100 120 150 180 210 FIG.4典型反向特性曲线 TYPICAL REVERSE CHARACTERISTICS Voltage(%) IR(uA) Tj=100℃ Tj=125℃ Tj=25℃ 0.001 0.01 0 20 40 60 80 100 0.1 1.0 100