SIYU R LL4148 开关二极管 Switching Diodes 特征 Features LL-34 ·反向漏电流小。Low reverse leakage ·开关速度快。Fast switching speed ·最大功率耗散500mW。Maximum power dissipation 500mW ·高稳定性和可靠性。High stability and high reliability ·引线和管体皆符合ROHS标准 。 Lead and body according with RoHS standard 机械数据 Mechanical Data 封装:迷你 玻璃封装 Unit：mm Case: Glass Case Minimelf 极性: 色环端为负极 Polarity: Color band denotes cathode end 安装位置: 任意 Mounting Position: Any 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 LL4148 单位 VRM 100 V VRRM 75 V IFM 300 mA IO 150 mA IFSM 2.0 A Pd 500 mW RθJA 300 ℃/W Symbols 不重复峰值反向电压 Non-repetitive Peak Reverse Voltage 反向峰值电压 peak repetitive Reverse Voltage 最大正向平均电流 Forward Continuous Current 平均整流输出电流 Average Rectified Output Current 正向（不重复）浪涌电流 Non-Repetitive Peak Forward Surge Current 功率消耗 Power Dissipation 典型热阻 Type Thermal Resistance 工作结温和存储温度 Operating junction and storage temperature range Unit -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. 正向电压 Forward voltage 反向电流 Reverse current 结电容 Junction capacitance 反向恢复时间 Reverse Recovery Time 符号 最小值 最大值 单位 测试条件 Symbols MIN. MAX. Unit Test Condition VFM --- 1.0 V IF =10mA μA μA μA nA pF VR = 75V VR = 70V, Tj=150℃ VR = 20V, Tj=150℃ VR = 20V nS IRM --- Cj --- 5.0 50 30 25 4.0 trr --- 4.0 VR = 0, f = 1.0MHz IF = 10mA — IR = 1.0mA VR = 6.0V, RL =100Ω 大昌电子 DACHANG ELECTRONICS SIYU R LL4148 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 0.36 平均正向电流 IF(AV) (A) IF(A) Average Forward Rectified Current (A) IF Instantaneous Forward Current (mA) 正向电流 IF(mA) 1000 200 100 20 Tj = 25 °C 10 1 0.6 0.8 1 1.2 1.4 1.6 正向电压 VF(V) VF Instantaneous Forward Voltage (V) 0.30 0.24 0.18 0.12 0.06 0 0 25 50 75 100 125 150 175 环境温度 Ta(°C) Tamb, ambient temperature (°C) 大昌电子 DACHANG ELECTRONICS