SMD Schottky Barrier Diodes COMCHIP www.comchip.com.tw CDBW0520 - CDBW0540 Voltage: 20- 40 Volts Current: 0.5 Amp Feature SOD-123 Low turn-on voltage Fast switching . 071(1.80) .098 (2.50) . 055(1.40) .110 (2.80) . 053(1.35) PN junction guard ring for transient and ESD protection . 037(0.95) . 028(0.70) . 019(0.50) .154 (3.90) .141 (3.60) . 008(0.20) Max. Mechanical data Case: SOD-123, molded plastic Terminals: solderable per MIL-STD-750, method 2026 Polarity: Indicated by cathode band .005 (.12) MAX. .016 (.40)Min. Mounting position: Any Dimensions in inches and (millimeters) Weight:0.008 grams Maximum Ratings and Electrical Characterics Parameter Symbol Max.RepetitivePeak Reverse Voltage V RRM 20 30 40 V Max. DC Blocking Voltage V DC 14 21 28 V Max. RMS Voltage V RMS 20 30 40 V Peak Surge Forward Current 8.3ms single half sine-wave Sine-wave superimposed on Rate load ( JEDEC ) I FSM 5.5 A Max. AverageForward Current Io 0.5 A Max. Forward Current at 0.1 A 0.5 A VF Max. Reverse Current IR Max. Thermal Resistance CDBW0520 0.3 0.385 CDBW0530 0.375 0.430 0.01@ VR =20V 0.25 @ VR =20V 0.13 @ VR =30V 0.02 @ VR =40V 206 R JL 150 Tj Storage temperature T STG V 0.02 @ VR =15V JA Unit 0.51 0.075 @ VR =10V R Operating junction temperature CDBW0540 mA C/W -55 to +125 C -55 to +125 C Note 1: Thermal resistance from junction to ambient and junction to to lead P.C.B. Mounted on 0.2 x 0.2 copper pad areas MDS0208001B Page 1 SMD Schottky Barrier Diodes COMCHIP www.comchip.com.tw RATING AND CHARACTERISTIC CURVES (CDBW0520-0540) Fig. 2 - Reverse Characteristics Fig. 1 - Reverse Characteristics Reverse Current ( uA ) Reverse Current ( uA ) 100 10 Tj=25 C 1 0.1 10000 Tj=100 C 1000 Tj=75 C 0.01 1000 0 5 10 15 20 0 25 5 Reverse Voltage (V) 10 15 20 25 Reverse Voltage (V) Fig. 3 - Forward Characteristics Fig. 4 - Current Derating Curve 0.6 10 Average Forward Current ( A ) Forward Current ( A ) Mounting on glass epoxy PCBs Tj=100 C 1 0.1 Tj=25 C 0.5 0.4 0.3 0.2 0.1 0.01 0.1 0.2 0.3 0.4 0.5 0 25 50 75 100 125 150 Ambient Temperature ( C) Forward Voltage (V) Fig. 3 - Capacitance Between Terminals characteristics Capacitance Between Terminals (pF) 200 150 100 50 0 5 10 15 20 25 Reverse Voltage (V) MDS0208001B Page 2