Low VF SMD Schottky Barrier Rectifiers CDBA340L-HF Reverse Voltage: 40 Volts Forward Current: 3.0 Amp RoHS Device Halogen free DO-214AC (SMA) Features -Low Profile surface mount applications in order to optimize board space. 0.067 (1.70) 0.114 (2.90) -Low power loss, high efficiency. 0.047 (1.20) 0.083 (2.10) -High current capability, low forward voltage drop. 0.187 (4.75) -High surge capability. 0.157 (4.00) -Guard ring for overvoltage protection. -Ultra high-speed switching. 0.012 (0.30) -Silicon epitaxial planar chip,metal silicon junction. TYP. 0.098 (2.50) Mechanical data 0.067 (1.70) -Case: JEDEC DO-214AC / SMA, molded plastic. 0.008(0.20) 0.061 (1.55) 0.003(0.08) -Epoxy: UL 94V-0 rate flame retardant. 0.030 (0.75) 0.224 (5.70) -Terminals: Solder plated, Solderable per 0.185 (4.70) -MIL-STD-750, method 2026. Dimensions in inches and (millimeter) -Polarity: Indicated by cathode band. -Mounting position: Any. -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 CDBA340L-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 0.40 V 3.0A, TA=25C Max. Forward Rectified Current (See Fig.1) IO 3.0 A Max. Forward Surge Current, 8.3ms single half sine-wave superimposed IFSM 80 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 50 C/W Typical Diode Junction Capacitance(Note 2) pF CJ 300 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-JL009 Page 1 Comchip Technology CO., LTD.Low VF SMD Schottky Barrier Rectifiers RATING AND CHARACTERISTIC CURVES (CDBA340L-HF) Fig.1 - Typical Forward Current Derating Curve Fig.2 - Typical Forward Characteristics 5.0 Single phase half wave 60Hz 50 Resistive or inductive load 4.0 10 3.0 1.0 2.0 0.1 1.0 TJ=25C Pulse width 300us 1% duty cycle 0.01 0 0 20 40 60 80 100 120 140 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 100 700 TJ=25C 8.3ms single half sine wave, JEDEC method 600 80 500 60 400 300 40 200 20 100 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-JL009 Page 2 Comchip Technology CO., LTD. Reverse Leakage Current, (mA) Peak Forward Surge Current, (A) Average Forward Current, (A) Junction Capacitance, (pF) INSTANTANEOUS FORWARD CURRENT, (A)