COMCHIP SMD Switching Diode SMD Diodes Specialist CDSWM4148 (RoHS Device) High Speed Features WM(SOD-123F) Designed for mounting on small surface. 0.134(3.40) 0.142(3.60) Extremely thin / leadless package. High speed switching. High mounting capability, strong surge withstand ,high reliability. 0.055(1.40) 0.063(1.60) Mechanical data Case: SOD-123F molded plastic, fits onto footprint of minimelf and SOD-123 on PCB. 0.027(0.70) 0.035(0.90) 0.018(0.45) Typ. Terminals: Gold plated, solderable per MIL-STD-750,method 2026. Polarity: Indicated by cathode band. 0.006(0.15) 0.007(0.20) Mounting position: Any Weight: 0.0115 gram(approx.). Dimensions in inches and (millimeter) Maximum Rating (at TA =25 C unless otherwise noted) O Parameter Conditions Repetitive peak reverse voltage Symbol Min Typ Max Unit V RRM 100 V Reverse voltage VR 75 V Average forward current IO 150 mA Forward current,surge peak T P = 1uS 4 I FSM T P = 1mS Repetitive peak forward current Power Dissipation A 1 I FRM 300 mA PD 350 mW Thermal Resistance Junction To ambient air R Storage temperature T STG Junction temperature Tj 285 JA -55 O C/W +125 O +125 O C C Electrical Characteristics (at TA =25 C unless otherwise noted) O Parameter Conditions Symbol Min Typ Max Unit Forward voltage I F = 50 mA DC VF 1.0 V Reverse current V R = 20 V V R = 75 V IR 25 2.5 nA uA Capacitance between terminals f = 1 MH Z ,and 0VDC reverse voltage CT 4 PF Reverse recovery time I F = I R 10 mA, RL =100 ohms, Irr = 1 mA T RR 4 nS REV:A QW-A0100 Page 1 COMCHIP SMD Switching Diode SMD Diodes Specialist Rating and Characteristic Curves (CDSWM4148) Fig. 1 - Forward characteristics Fig. 2 - Reverse characteristics 1000 10u O Reverse current ( A ) 100 10 1 O 75 C 100n 10n O 25 C C 1n O C O 25 1u -25 75 C O O C 0.1 125 Forward current (mA ) 125 C O -25 C 0.1n 0.01 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 10 20 40 50 60 70 80 90 100 Reverse voltage (V) Forward voltage (V) Fig.3 - Capacitance between terminals characteristics Fig.4 - Current derating curve 5.0 f=1MHz O T A =25 C Mounting on glass epoxy PCBs Average forward current(%) Capacitance between terminals ( P F) 30 4.0 3.0 2.0 1.0 100 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-A0100 Page 2