P r e l i m i n a r y SMD Switching Diode CDSU4148-HF RoHS Device Halogen Free Features 0603/SOD-523F - High Speed. 0.071(1.80) - Designed for mounting on small surface. 0.063(1.60) - Extremely thin/leadless package. - High mounting capability, strong surge 0.039(1.00) 0.031(0.80) withstand, high reliability. Mechanical data - Case: 0603/SOD-523F standard package, molded plastic. 0.033(0.85) 0.027(0.70) - Terminals: Gold plated, solderable per MIL-STD-750,method 2026. 0.018(0.45) 0.012(0.30) - Polarity: Indicated by cathode band. - Mounting position: Any. 0.014(0.35) 0.011(0.28) - Weight: 0.003 grams(approx.). 0.030(0.75) 0.026(0.65) 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 VRRM 100 V Reverse voltage VR 75 V Average forward current IO 150 mA Tp=1uS 4 Forward current, surge peak IFSM A Tp=1mS 1 Power dissipation PD 150 mW O Operating temperature range Tj -40 +125 C O Storage temperature range TSTG -40 +125 C Electrical Characteristics (at TA=25 C unless otherwise noted) Symbol Typ Parameter Conditions Min Max Unit Forward voltage IF = 50 mA DC VF 1.0 V VR = 20V 25 nA Reverse current IR VR = 75V 2.5 uA Capacitance between terminals f = 1MHz, and 0 VDC reverse voltage CT 4 pF Reverse recovery time IF = IR = 10 mA, RL =100 ohms, Irr= 1mA Trr 4 nS Company reserves the right to improve product design , functions and reliability without notice. REV:C QW-G0001 Page 1 Comchip Technology CO., LTD.SMD Switching Diode RATING AND CHARACTERISTIC CURVES (CDSU4148-HF) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 1000 10u 125 C 100 1u 75 C 10 100n 1 10n 25 C 0.1 1n -25 C 0.1n 0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 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 f=1MHz Mounting on glass epoxy PCBs Ta = 25C 100 4 80 3 60 2 40 1 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. RREEVV::C QW-G0001 Page 2 Comchip Technology CO., LTD. 125 C 75 C 25 C -25 C Capacitance Between Terminals, (pF) Forward Current, (mA ) Average Forward Current, ( % ) Reverse Current, ( A )
