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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-A061 Rev. 1.2, 28-Apr-14 www.21yangjie.com BY251G THRU BY255G 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 251G 252G 253G 254G 255G 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=75℃ 60Hz Half-sine wave, Resistance load, Ta=75℃ 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℃ 200 结温 Junction Temperature TJ ℃ -55~+150 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℃ 50 热阻(典型) Thermal Resistance(Typical) RθJ-A /W℃ 结和环境之间 Between junction and ambient 30 结电容 Typical junction capacitance Cj pF Measured at 1MHZ and Applied Reverse V oltage of 4.0 V .D.C. 60 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-A061 Rev. 1.2, 28-Apr-14 www.21yangjie.com BY251G THRU BY255G ■特性曲线（典型） Characteristics(Typical) 0.6 1.2 100 150 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 1.8 2.4 3.0 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 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 IFSM
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 80 100 110 140 170 200