SIYU R 1N4148 开关二极管 Switching Diodes DO-34 Glass DO-35 Glass 特征 Features ·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: 玻璃封装 Unit：mm 极性: 色环端为负极 Polarity: Color band denotes cathode end Unit：mm 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 1N4148 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 Case: Glass Case 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 1N4148 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) Average Forward Rectified Current (A) 200 100 20 Tj = 25 °C 10 0.30 0.24 0.18 0.12 0.06 IF(A) IF(mA) 正向电流 IF Instantaneous Forward Current (mA) 1000 1 0.6 0.8 1 1.2 1.4 1.6 正向电压 VF(V) VF Instantaneous Forward Voltage (V) 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