SMD Switching Diode CDSQC4148-HF High-Reliability and High-Performance RoHS Device Halogen Free Features 0402C/SOD-923F - High speed. 0.041(1.05) - Designed for mounting on small surface. 0.037(0.95) - Extremely thin/leadless package. - High mounting capability, strong surge 0.026(0.65) withstand, high reliability. 0.022(0.55) Mechanical data - Case: 0402C/SOD-923F standard package, 0.022(0.55) 0.018(0.45) molded plastic. - Terminals: Gold plated, Solderable per 0.001(0.02) MIL-STD-750,method 2026. Max. 0.026(0.65) - Polarity: Indicated by cathode band. BSC. - Mounting position: Any. 0.022(0.55) - Weight: 0.001 grams (approx.). 0.018(0.45) 0.012(0.30) Circuit Diagram 0.008(0.20) 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=1S 4 Forward current, surge peak IFSM A Tp=1mS 1 Power dissipation PD 125 mW 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 Forward voltage IF = 50 mA DC VF 1.0 V VR = 20V 25 nA Reverse current IR A VR = 75V 2.5 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:B Page 1 QW-G0036 Comchip Technology CO., LTD.SMD Switching Diode Rating and Characteristic Curves (CDSQC4148-HF) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 1000 10 125C 100 1 75C 10 100n 1 10n 25C 0.1 1n -25C 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. REV:B Page 2 QW-G0036 Comchip Technology CO., LTD. 125C 75C 25C -25C Capacitance Between Terminals, (pF) Forward Current, (mA) Average Forward Current, (%) Reverse Current, (A)