SIYU R US3A ...... US3M Surface Mounted High-efficiency Rectifier 表面安装高效率整流二极管 反向电压 50 --- 1000 V 正向电流 3.0 A Reverse Voltage 50 --- 1000 V Forward Current 3.0 A 特征 Features SMC ·反向漏电流低 Low reverse leakage ·正向浪涌承受能力较强 High forward surge capability ·高温焊接保证 High temperature soldering guaranteed: 260℃/10 秒 seconds at terminals .246(6.22) .220(5.59) .128(3.25) .108(2.75) .280(7.11) .260(6.60) ·引线和管体皆符合RoHS标准 。 Lead and body according with RoHS standard .012(0.305) .006(0.152) .103(2.62) .079(2.00) 机械数据 Mechanical Data .050(1.27) .030(0.76) .008(0.203) .002(0.051) ·封装: 塑料封装 Case: Molded plastic body ·端子: 焊料被镀 Terminals: Solder plated ·极性: 色环端为负极 Polarity: Color band denotes cathode end ·安装位置: 任意 Mounting Position: Any .320(8.13) .305(7.75) Unit：inch（mm） 极限值和温度特性 TA = 25℃ 除非另有规定。 Maximum Ratings & Thermal Characteristics Ratings at 25℃ ambient temperature unless otherwise specified. 符号 Symbols US3A US3B US3D US3G US3J US3K US3M 最大可重复峰值反向电压 Maximum repetitive peak reverse voltage 最大均方根电压 Maximum RMS voltage 最大直流阻断电压 Maximum DC blocking voltage 最大正向平均整流电流 Maximum average forward rectified current 峰值正向浪涌电流 8.3ms单一正弦半波 Peak forward surge current 8.3 ms single half sine-wave 典型热阻 Typical thermal resistance 工作结温和存储温度 Operating junction and storage temperature range 单位 Unit VRRM 50 100 200 400 600 800 1000 V VRMS 35 70 140 280 420 560 700 V VDC 50 100 200 400 600 800 1000 V IF(AV) 3.0 A IFSM 100 A RθJA 60 ℃/W ℃ -55 --- +150 Tj, TSTG 电特性 TA = 25℃ 除非另有规定。 Electrical Characteristics Ratings at 25℃ ambient temperature unless otherwise specified. 符号 Symbols 最大正向电压 IF = 3.0A Maximum forward voltage 最大反向电流 Maximum reverse current 最大反向恢复时间 TA= 25℃ TA= 125℃ IF=0.5A IR=1.0A IRR=0.25A MAX. Reverse Recovery Time 典型结电容 Type junction capacitance VR = 4.0V, f = 1MHz VF US3A US3B US3D US3G US3J 1.0 1.3 Cj 1.7 10 500 IR trr US3K US3M 50 Unit V μA 75 15 单位 nS pF 大昌电子 DACHANG ELECTRONICS SIYU R US3A ...... US3M 特性曲线 Characteristic Curves 正向特性曲线（典型值） 正向电流降额曲线 TYPICAL FORWARD CHARACTERISTIC FORWARD CURRENT DERATING CURVE 1 US3G 0.2 US3J thru US3M 0.1 Tj = 25 °C 0.01 0.8 1.0 1.2 1.4 正向电压 1.6 1.8 VF(V) VF Instantaneous Forward Voltage (V) IF(A) 2 US3A thru US3D 平均正向电流 IF(AV) (A) Average Forward Rectified Current (A) IF(A) 正向电流 IF Instantaneous Forward Current (A) 10 3.6 3.0 2.4 1.8 1.2 0.6 0 0 25 50 75 100 125 150 175 环境温度 Ta(°C) Tamb, ambient temperature (°C) 浪涌特性曲线（最大值） MAXIMUM NON REPETITIVE PEAK FORWARD SURGE CURRENT 峰值正向浪涌电流 IFSM(A) IFSM Peak Forward Surge Current (A) 100 80 60 40 20 0 1 2 4 6 10 20 40 100 通过电流的周期 Number of Cycles at 60 Hz. 大昌电子 DACHANG ELECTRONICS