COMCHIP SMD Schottky Barrier Diode SMD Diodes Specialist CDBU42/43 (RoHs Device) Io = 200 mA V R = 30 Volt s Features 0603(1608) Low forward voltage. 0.071(1.80) 0.063(1.60) Designed for mounting on small surface. Extremely thin / leadless package. 0.039(1.00) 0.031(0.80) Majority carrier conduction. Mechanical data Case: 0603(1608) standard package, molded plastic. 0.033(0.85) 0.027(0.70) Terminals: Gold plated, solderable per MIL-STD-750,method 2026. 0.014(0.35) Typ. Polarity: Indicated by cathode band. 0.012 (0.30) Typ. Mounting position: Any Weight: 0.003 gram(approx.). 0.018(0.45) Typ. Dimensions in inches and (millimeter) Maximum Rating (at TA =25 C unless otherwise noted) O Parameter Conditions Peak reverse voltage Reverse voltage RMS reverse voltage Average forward rectified current Repetitive peak forward current Forward current,surge peak 8.3 ms single half sine-wave superimposed on rate load(JEDEC method) Power dissipation Symbol Min Typ Max Unit V RM 30 V VR 30 V V R(RMS) 21 V IO 200 mA I FRM 0.5 A I FSM 4 A PD 150 Thermal resistance junction to ambient air R Storage temperature T STG Junction temperature Tj 667 JA -55 mW O C/W +125 O +125 O C C Electrical Characteristics (at TA =25 C unless otherwise noted) O Parameter Forward voltage CDBU42/43 CDBU42 CDBU42 CDBU43 CDBU43 Conditions IF = IF = IF = IF = IF = 200mA 10mA 50mA 2mA 15mA Symbol Min Typ Max Unit VF 1 0.4 0.65 0.33 0.45 V Reverse current V R = 25V IR 0.5 uA Capacitance between terminals f = 1 MHz, and 1 VDC reverse voltage CT 10 pF Reverse recovery time I F =I R =10mA,Irr=0.1xIR,RL=100 ohm T rr 5 nS REV:A QW-A1043 Page 1 COMCHIP SMD Schottky Barrier Diode SMD Diodes Specialist RATING AND CHARACTERISTIC CURVES (CDBU42/43) Fig. 1 - Forward characteristics Fig. 2 - Reverse characteristics 1m Reverse current ( A ) 100 10 10u O 75 C 1u 100n C C O 125 C O O 25 100u O 25 C -25 C O 125 75 C 1 O Forward current (mA ) 500 0.1 10n 0 200 400 600 800 0 10 40 Reverse voltage (V) Forward voltage (V) Fig.3 - Capacitance between terminals characteristics Fig.4 - Current derating curve 120 16 f=1MHz O T A =25 C 14 Mounting on glass epoxy PCBs Average forward current(%) Capacitance between terminals ( P F) 30 20 12 10 8 6 4 2 100 80 60 40 20 0 0 0 5 10 15 20 25 Reverse voltage (V) 30 35 0 25 50 75 100 125 150 O Ambient temperature ( C) REV:A QW-A1043 Page 2