SMD Switching Diode CDSF4448-HF Io = 125 mA VR = 80 Volts RoHS Device Halogen Free 1005/SOD-323F Features 0.102(2.60) - Fast switching speed 0.095(2.40) - Designed for mounting on small surface. - Extremely thin/leadless package. 0.051(1.30) 0.043(1.10) Mechanical data - Case: 1005/SOD-323F standard package, molded plastic. 0.035(0.90) 0.027(0.70) - Terminals: Gold plated, Solderable per MIL-STD-750,method 2026. 0.024(0.60) 0.016(0.40) - Polarity: Indicated by cathode band. - Mounting position: Any. 0.014(0.35) 0.011(0.28) - Weight: 0.006 grams(approx.). 0.041(1.05) 0.037(0.95) Circuit diagram Dimensions in inches and (millimeter) Maximum Rating (at TA=25 C unless otherwise noted) Symbol Typ Parameter Conditions Min Max Unit Repetitive peak reverse voltage 100 VRRM V Reverse voltage VR 80 V Average forward rectified current IO 125 mA 8.3 ms single half sine-wave superimposed Forward current, surge peak IFSM 1 A on rate load (JEDEC method) Power dissipation 330 PD mW Thermal resistance Junction to ambient R JA 300 C/W Operating temperature range Tj -40 +125 C Storage temperature range TSTG -40 +125 C Electrical Characteristics (at TA=25 C unless otherwise noted) Symbol Typ Parameter Conditions Min Max Unit IF = 5 mA 0.72 Forward voltage VF V IF = 100 mA 1 VR = 30V 25 Reverse current IR nA VR = 80V 100 Capacitance between terminals f = 1MHz, and 0.5 VDC reverse voltage CT pF 9 Reverse recovery time IF = IR = 10 mA, Irr = 0.1 X IR, RL =100 ohm Trr 9 nS Company reserves the right to improve product design , functions and reliability without notice. REV:A QW-G0033 Page 1SMD Switching Diode RATING AND CHARACTERISTIC CURVES (CDSF4448-HF) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 1000 10u O 125 C 100 1u O 75 C 10 100n 1 10n O 25 C 0.1 1n O -25 C 0.1n 0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 10 20 30 40 50 60 70 80 90 100 Forward Voltage, (V) Reverse Voltage, (V) Fig.3 - Capacitance Between Fig.4 - Current Derating Curve Terminals Characteristics 5.0 Mounting on glass epoxy PCBs f=1MHz O TA=25 C 100 4.0 80 3.0 60 2.0 40 1.0 20 0 0 0 5 10 15 20 25 30 35 0 25 50 75 100 125 150 Reverse Voltage, (V) Ambient Temperature, ( C) Company reserves the right to improve product design , functions and reliability without notice. REV:A QW-G0033 Page 2 O 75 C O 25 C O 125 C O -25 C Forward Current, (mA ) Capacitance Between Terminals,(pF) Reverse Current, ( A ) Average Forward Current, ( % )