PP rr ee ll ii mm ii nn aa rr yy SMD Switching Diode CDSF4148-HF RoHS Device Halogen Free 1005/SOD-323F Features 0.102(2.60) - High Speed. 0.095(2.40) - Designed for mounting on small surface. - Extremely thin/leadless package. 0.051(1.30) 0.043(1.10) - High mounting capability, strong surge withstand, high reliability. - Use in sensitive electronics protection against voltage transients induced by inductive load 0.035(0.90) switching and lighting on ICs, MOSFET, signal 0.027(0.70) lines of sensor units for consumer, computer, industrial, automotive and telecommunication. 0.024(0.60) 0.016(0.40) Mechanical data 0.014(0.35) 0.011(0.28) - Case: 1005/SOD-323F standard package, molded plastic. 0.041(1.05) - Terminals: Gold plated, solderable per 0.037(0.95) MIL-STD-750,method 2026. Dimensions in inches and (millimeter) - Polarity: Indicated by cathode band. - Mounting position: Any. Circuit diagram - Weight: 0.006 grams(approx.). 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 350 mW Thermal resistance junction R JA 286 C/W to ambient air 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 Reverse breakdown voltage 75 IR = 100 uA VBR V Forward voltage IF = 50 mA DC VF 1.0 V VR = 20V 25 nA Reverse current IR VR = 75V 2.5 uA f = 1MHz, and 0 VDC reverse voltage pF Capacitance between terminals CT 4 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-G0003 Page 1 Comchip Technology CO., LTD.SMD Switching Diode RATING AND CHARACTERISTIC CURVES (CDSF4148-HF) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 1000 10u 125 C 100 1u 75 C 10 100n 1.0 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. REV:C QW-G0003 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 )