Ultra Low VF SMD Schottky Barrier Rectifiers CDBA240LL-HF Reverse Voltage: 40 Volts Forward Current: 2.0 Amp RoHS Device Halogen free Features DO-214AC (SMA) -Low Profile surface mount applications in order to optimize board space. -Low power loss, high efficiency. 0.067 (1.70) 0.114 (2.90) 0.047 (1.20) -High current capability, low forward voltage drop. 0.083 (2.10) -High surge capability. 0.187 (4.75) -Guard ring for overvoltage protection. 0.157 (4.00) -Ultra high-speed switching. -Silicon epitaxial planar chip,metal silicon junction. 0.012 (0.30) TYP. Mechanical data 0.098 (2.50) 0.067 (1.70) -Case: JEDEC DO-214AC / SMA, molded plastic. -Epoxy: UL 94V-0 rate flame retardant. 0.008(0.20) 0.061 (1.55) 0.003(0.08) -Terminals: Solder plated, Solderable per 0.030 (0.75) 0.224 (5.70) -MIL-STD-750, method 2026. 0.185 (4.70) -Polarity: Indicated by cathode band. -Mounting position: Any. Dimensions in inches and (millimeter) -Weight: 0.055 grams Maximum Ratings and Electrical Characteristics Ratings at Ta=25C unless otherwise noted. Single phase, half wave, 60Hz, resistive or inductive loaded. For capacitive load, derate current by 20% . Symbol Parameter CDBA240LL-HF Unit Max. Recurrent Peak Reverse Voltage 40 VRRM V Max. RMS Voltage VRMS 28 V Max. DC Blocking Voltage VDC 40 V Max. Instantaneous Forward Voltage VF 0.35 V 2.0A, TA=25C Max. Forward Rectified Current (See Fig.1) IO 2.0 A Max. Forward Surge Current, 8.3ms single half sine-wave superimposed IFSM 70 A on rated load (JEDEC method) VR=VRRM TJ=25C 1.0 Max. Reverse Current IR mA VR=VRRM TJ=100C 20 Typical Thermal Resistance (Note 1) R JA 70 C/W Typical Diode Junction Capacitance(Note 2) pF CJ 160 Operating Temperature Range TJ -50 to +100 C Storage Temperature Range TSTG -50 to +150 C NOTES: 1. Thermal resistance from junction to ambient. 2. F=1MHZ and applied 4V DC reverse Voltage. Company reserves the right to improve product design , functions and reliability without notice. REV: C QW-JL008 Page 1 Comchip Technology CO., LTD.Ultra Low VF SMD Schottky Barrier Rectifiers RATING AND CHARACTERISTIC CURVES (CDBA240LL-HF) Fig.1 - Typical Forward Current Derating Curve Fig.2 - Typical Forward Characteristics 3.5 Single phase half wave 60Hz 50 Resistive or inductive load 3.0 10 2.5 2.0 1.0 1.5 1.0 0.1 0.5 TJ=25C Pulse width 300us 1% duty cycle 0.01 0 0 25 50 75 100 125 150 175 0.1 0.3 0.5 0.7 0.9 1.1 1.3 1.5 Ambient Temperature, (C) Forward Voltage, (V) Fig.3 - Maximum Non-repetitive Fig.4 - Typical Junction Capacitance Forward Surge Current 100 350 TJ=25C 8.3ms single half sine wave, JEDEC method 300 80 250 60 200 150 40 100 20 50 0 0 1 10 100 0.01 0.1 1 10 100 Number of Cycles at 60Hz Reverse Voltage, (V) Fig.5 - Typical Reverse Characteristics 100 TJ=100C 10 1.0 TJ=25C 0.1 0.01 0 20 40 60 80 100 120 140 Percent of Rated Peak Reverse Voltage, (%) Company reserves the right to improve product design , functions and reliability without notice. REV: C QW-JL008 Page 2 Comchip Technology CO., LTD. Reverse Leakage Current, (mA) Peak Forward Surge Current, (A) Average Forward Current, (A) Junction Capacitance, (pF) Instantaneous Forward Voltage, (A)