Ultra Low VF SMD Schottky Barrier Rectifiers CDBMS140LL-HF Reverse Voltage: 40 Volts Forward Current: 1.0 Amp RoHS Device Halogen Free SOD-123S Features 0.154(3.90) 0.138(3.50) 0.016(0.40) Typ. -Low power loss, high efficiency. -High current capability, Low forward voltage drop. 0.039(1.00) 0.031(0.80) -High surge capability. 0.079(2.00) 0.063(1.60) -Guard ring for overvoltage protection. -Ultra high-speed switching. -Silicon epitaxial planar chip, metal silicon junction. Mechanical data 0.055(1.40) 0.039(1.00) -Epoxy: UL94V-0 rated flame retardant. 0.031(0.80) Typ. -Case: SOD-123S, molded plastic. -Terminals: solderable per MIL-STD-750, method 2026. -Polarity: Indicated by cathode band. 0.031(0.80) Typ. Dimensions in inches and (millimeter) -Weight: 0.018 grams (Approx.) Maximum Ratings and Electrical Characteristics Ratings at Ta=25°C unless otherwise noted. Single phase, half wave, 60Hz, resistive or inductive loaded. For capacitive load, derate current by 20% . Symbol CDBMS140LL-HF Units VRRM 40 V VR 40 V VRMS 28 V Max. forward voltage @1.0A, TA=25°C VF 0.35 V Junction Temperature TJ -55 to +100 °C Parameter Max. Repetitive peak reverse voltage Max. DC blocking voltage Max. RMS voltage Parameter Conditions Forward rectified current Symbol MAX. Units IO 1.0 A IFSM 50 A 1.0 mA MIN. TYP. Forward surge current 8.3ms single half sine-wave superimposed on rate load (JEDEC method) Reverse current VR =VRRM TJ=25°C IR Thermal Resistance Junction to ambient RθJA 130 °C/W Diode junction capacitance f=1MHZ and applied 4V DC reverse Voltage CJ 130 pF Storage temperature TSTG -55 +150 Company reserves the right to improve product design , functions and reliability without notice. °C REV: A Page 1 QW-JL038 Comchip Technology CO., LTD. Ultra Low VF SMD Schottky Barrier Rectifiers RATING AND CHARACTERISTIC CURVES (CDBMS140LL-HF) Fig.1 - Typical Forward Current Derating Curve Fig.2 - Typical Forward Characteristics Single phase half wave 60Hz Resistive or inductive load 1.2 1.0 0.8 0.6 0.4 0.2 Instantaneous Forward Current, (A) Average Forward Current, (A) 1.4 25 75 50 100 125 10 1.0 0.1 TJ=25°C Pulse width 300μs 1% duty cycle 0.01 0.1 0 0 50 150 Ambient Temperature, (°C) 0.5 0.7 0.9 1.1 1.3 1.5 Forward Voltage, (V) Fig.3 - Maximum Non-repetitive Forward Surge Current Fig.4 - Typical Junction Capacitance 50 350 TJ=25°C 8.3ms single half sine wave, JEDEC method Junction Capacitance, (pF) Peak Forward Surge Current, (A) 0.3 40 30 20 10 0 10 1 100 300 250 200 150 100 50 0 0.01 Number of Cycles at 60Hz 0.1 1 10 100 Reverse Voltage, (V) Fig.5 - Typical Reverse Characteristics Reverse Leakage Current, (mA) 100 10 TJ=25°C 1.0 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: A Page 2 QW-JL038 Comchip Technology CO., LTD. Ultra Low VF SMD Schottky Barrier Rectifiers Reel Taping Specification d P0 P1 T E Index hole F W B P C A 12 o 0 D2 D1 D W1 Trailer ....... ....... End Device ....... ....... Leader ....... ....... ....... ....... 160mm (min) Start 400mm (min) Direction of Feed SOD-123S SOD-123S SYMBOL A B C d D D1 D2 (mm) 2.00 ± 0.10 3.75 ± 0.10 1.10 ± 0.10 1.50 ± 0.10 178 ± 0.30 60.0 Min. 13.50 ± 0.20 (inch) 0.079 ± 0.004 0.148 ± 0.004 0.043 ± 0.004 0.059 ± 0.004 7.008 ± 0.012 2.362 Min. 0.532 ± 0.008 SYMBOL E F P P0 P1 W W1 (mm) 1.75 ± 0.10 3.50 ± 0.10 4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.10 8.00 ± 0.30 12.00 Min. (inch) 0.069 ± 0.004 0.138 ± 0.004 0.158 ± 0.004 0.158 ± 0.004 0.079 ± 0.004 0.315 ± 0.012 0.472 Min. Company reserves the right to improve product design , functions and reliability without notice. REV: A Page 3 QW-JL038 Comchip Technology CO., LTD. Ultra Low VF SMD Schottky Barrier Rectifiers Marking Code Part Number Marking Code CDBMS140LL-HF LL4 XXX = Cathod band XXX = Product type marking code Suggested PAD Layout SOD-123S C SIZE (mm) (inch) A 1.10 0.043 B 1.00 0.039 C 2.00 0.079 A B Note: 1.The pad layout is for reference purposes only. Standard Packaging REEL PACK Case Type SOD-123S REEL Reel Size ( pcs ) (inch) 3,000 7 Company reserves the right to improve product design , functions and reliability without notice. REV: A Page 4 QW-JL038 Comchip Technology CO., LTD.