COMCHIP Schottky Barrier Diode SMD Diodes Specialist CDBW120-G Thru. CDBW140-G Forward current: 1.0A Reverse voltage: 20 to 40V RoHS Device Features SOD-123 -For use in low voltage, high frequency inverters. -Free wheeling, and polarity protection applications. 0.110 (2.80) Mechanical Data 0.098 (2.50) -Case: SOD-123, molded plastic. 0.028 (0.70) 0.071 (1.80) 0.019 (0.50) 0.055 (1.40) -Terminals: solderable per MIL-STD-750, method 2026. 0.154 (3.90) 0.141 (3.60) -Polarity: indicated by cathode end. 0.008 (0.20)max 0.053 (1.35) -Weight: approx. 0.008 grams. 0.037 (0.95) Marking 0.005 (0.12)max 0.016 (0.40)min CDBW0120-G: SJ CDBW0130-G: SK CDBW0140-G: SL Dimensions in inches and (millimeter) Maximum Ratings (At Ta=25 O C, unless otherwise noted) Symbol CDBW0120-G CDBW0130-G CDBW0140-G Unit Non-repetitive peak reverse voltage V RM 20 30 40 V Peak repetitive peak reverse voltage Working peak reverse voltage DC blocking voltage V RRM V RWM VR 20 30 40 V V R(RMS) 14 21 28 V Parameter RMS reverse voltage Average rectified output current IO 1 A Peak forward surge current @8.3ms I FSM 25 A Repetitive peak forward current I FRM 625 mA PD 250 Power dissipation mW O Thermal resistance, junction to ambient RθJA 500 Storage temperature T STG -65 ~ +150 Electrical Characteristics (At Ta=25 Parameter O O Conditions Symbol I R =1mA CDBW0120-G CDBW0130-G CDBW0140-G V BR Reverse voltage leakage current V R =20V V R =30V V R =40V CDBW0120-G CDBW0130-G CDBW0140-G IR I F =1A CDBW0120-G CDBW0130-G CDBW0140-G I F =3A CDBW0120-G CDBW0130-G CDBW0140-G Forward voltage Min. Max. 20 30 40 Unit V 1 mA 0.45 0.55 0.60 VF V R =4V, f=1MHz C C, unless otherwise noted) Reverse breakdown voltage Diode capacitance C/W V 0.75 0.875 0.90 CD 120 pF REV:A QW-BB020 Page 1 COMCHIP Schottky Barrier Diode SMD Diodes Specialist RATING AND CHARACTERISTIC CURVES (CDBW120-G Thru. CDBW140-G) Fig.2 Maximum Non-Repetitive Peak Forward Surge Current Fig.1 Typical Forward Current Derating Curve 30 Peak Forward Surge Current (A) Average Forward Current (A) 2 1 0.5 Inductive or resistive load 0.375" (9.5mm) lead length 0 25 20 15 10 5 0 0 50 25 75 100 125 150 175 1 10 Case Temperature ( OC) Fig.4 Typical Reverse Characteristics 100 Instantaneous Reverse Voltage (mA) Instantaneous Forward Current (A) Fig.3 Typical Instantaneous Forward Characteristics O T J =125 C 10 O T J =25 C 1 0.1 Pulse width=300μs 1% duty cycle 0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 100 T J =125 10 T J =75 OC 0.1 O T J =25 C 0.01 0.001 0 1.8 Transient Thermal Impedance ( C/W) 60 80 100 100 O Junction Capacitance (pF) O T J =25 C f=1MHz V sig =50mV 100 Reverse Voltage (V) 40 Fig.6 Typical Transient Thermal Impedance 1000 10 20 Percent of Rated Peak Reverse Voltage (%) Fig.5 Typical Junction Capacitance 1 O 1.0 Instantaneous Forward Voltage (V) 10 0.1 100 Number of Cycles at 60Hz 100 10 1 0.1 0.01 0.1 1 10 100 t-Pulse Duration (Sec.) REV:A QW-BB020 Page 2