SMD Switching Diode CDSQR4448-HF RoHS Device Halogen Free Features 0402/SOD-923F - High Speed. - Fast Switching Speed. 0.041(1.05) 0.037(0.95) - Designed for mounting on small surface. - Extremely thin/leadless package. 0.026(0.65) 0.022(0.55) Mechanical data - Case: 0402/SOD-923F standard package, molded plastic. 0.022(0.55) - Terminals: Gold plated, Solderable per 0.018(0.45) MIL-STD-750,method 2026. 0.014(0.35) - Polarity: Indicated by cathode band. 0.010(0.25) - Mounting position: Any. - Weight: 0.001 grams(approx.). 0.020(0.50) Circuit diagram 0.016(0.40) 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 80 V Average forward current IO 125 mA Tp=1uS 2 Forward current, surge peak IFSM A Tp=8.3mS 1 Power dissipation 125 PD 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) Typ Parameter Conditions Symbol Min Max Unit IF = 5 mA 0.72 Forward voltage 0.62 VF V IF = 100 mA 1 VR = 20V 25 Reverse current IR nA VR = 80V 100 Capacitance between terminals f = 1MHz, and 0.5 VDC reverse voltage CT 9 pF 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:C QW-G0011 Page 1 Comchip Technology CO., LTD.SMD Switching Diode RATING AND CHARACTERISTIC CURVES (CDSQR4448-HF) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 1000 10u O 125 C 100 1u O 75 C 10 100n 1 O 10n 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 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-G0011 Page 2 Comchip Technology CO., LTD. O 75 C O 25 C O 125 C O -25 C Forward Current, (mA ) Capacitance Between Terminals, (pF) Average Forward Current, ( % ) Reverse Current, ( A )