SMD Switching Diode 1N4148W-HF Reverse Voltage: 100 V Forward Current: 150mA RoHS Device Halogen Free SOD-123 Features 0.152(3.85) 0.140(3.55) - Fast switching device (Trr < 4.0nS). - Power dissipation of 500mW. 0.067(1.70) 0.026(0.65) 0.018(0.45) 0.059(1.50) - High stability and high reliability. - + - Low reverse leakage. 0.110(2.80) 0.102(2.60) 0.006(0.15) Mechanical data 0.003(0.08) 0.049(1.25) 0.041(1.05) - Case: SOD-123, molded plastic. 0.004(0.10) - Polarity: Color band denotes cathode end. 0.000(0.00) 0.018(0.45) 0.010(0.25) - Epoxy UL: 94V-0. - Mounting position: Any. Dimensions in inches and (millimeters) Circuit Diagram Maximum Rating (at Ta=25C unless otherwise noted) Parameter Symbol Value Unit Peak reverse voltage VRM 100 V Power dissipation PD 500 mW Average rectied current Io 150 mA Non-repetitive peak forward current IFM 300 mA Peak forward surge current tp=1s, TA=25C IFSM A 2 Thermal resistance from junction to ambient R JA 250 C/W Operating junction temperature Tj 150 C Storage temperature range TSTG -65 to +150 C Note: Valid provided that electrodes are kept at ambient temperature. Company reserves the right to improve product design , functions and reliability without notice. REV:A QW-J0017 Page 1 Comchip Technology CO., LTD.SMD Switching Diode Electrical Characteristics (at Ta=25C unless otherwise noted) Symbol Typ Parameter Conditions Min Max Unit Breakdown voltage IR = 100A BV 100 V VR = 20V 25 nA Reverse leakage current VR = 20V, Tj=150C IR 50 A VR = 75V 5 IF = 10mA 1.00 Forward voltage VF V IF = 100mA 1.25 Capacitance VR = 0V, f = 1 MHz pF C 4 IF = IR = 10mA, Irr = 0.1 x IR Reverse recovery time TRR 4 nS RL = 100 Rating and Characteristic Curves (1N4148W-HF) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 300 10000 100 Ta=100C 1000 10 100 Ta=25C 1 10 0.1 1 0 0.4 0.8 1.2 1.6 0 20 40 60 80 100 Forward Voltage, VF (V) Reverse Voltage, VR (V) Fig.3 - Capacitance Characteristics Fig.4 - Power Derating Curve 1.6 600 Ta = 25C f = 1MHz 500 1.4 400 1.2 300 1.0 200 0.8 100 0.6 0 0 4 8 12 16 20 0 25 50 75 100 125 150 Reverse Voltage, VR (V) Ambient Temperature, Ta (C) Company reserves the right to improve product design , functions and reliability without notice. REV:A QW-J0017 Page 2 Comchip Technology CO., LTD. Ta=100C Ta=25C Capacitance Between Terminals, CT (pF) Forward Current, IF (mA) Power Dissipation, PD (mW) Reverse Current, IR (nA)