Low VF Low IR SMD Schottky Barrier Rectifiers CDBM140LR-HF Reverse Voltage: 40 Volts Forward Current: 1.0 Amp RoHS Device Halogen free SOD-123F Features - Low forward voltage drop. 0.154(3.90) 0.138(3.50) 0.012(0.30) Typ. - Low reverse leakage current. - High current capability, Low forward voltage drop . 0.071(1.90) 0.055(1.50) - High surge capability . - Guard ring for over voltage protection. - Ultra high-speed switching. - Silicon epitaxial planar chip, metal silicon junction. 0.067(1.70) 0.051(1.30) Mechanical data 0.028(0.70) Typ. - Case: SOD-123F, molded plastic. 0.028(0.70) Typ. - Terminals: Solderable per MIL-STD-750, method 2026. Dimensions in inches and (millimeter) - Polarity: Color band denotes cathode end. Circuit Diagram - Weight: 0.010 grams(Approx.) Maximum Ratings (at T =25°C unless otherwise noted) A Parameter Conditions Symbol Min Typ Max Unit Maximum Recurrent peak reverse voltage VRRM 40 V Maximum RMS Voltage VRMS 28 V DC Blocking voltage VDC 40 V Operating temperature TJ +125 °C -50 Electrical Characteristics (at T =25°C unless otherwise noted) A Parameter Conditions Average forward current Symbol Min Typ Max Unit IO 1 A IFSM 30 A 0.45 V 200 uA Forward current,surge peak 8.3ms single half sine-wave superimposed on rate load(JEDEC method) Forward voltage IF = 1 A VF Reverse current VR = 30 V , TA= 25°C IR Thermal resistance Junction to ambient Diode Junction capacitance f=1MHZ and applied 4V DC reverse voltage Storage temperature 0.4 RθJA 98 °C/W CJ 200 pF TSTG -50 +150 Company reserves the right to improve product design , functions and reliability without notice. °C REV:A Page 1 QW-JL003 Comchip Technology CO., LTD. Low VF Low IR SMD Schottky Barrier Rectifiers RATING AND CHARACTERISTIC CURVES (CDBM140LR-HF) Fig.1 - Typical Forward Current Derating Curve Fig.2 - Typical Forward Characteristics 100 Instantaneous Forward Current,(A) 1.4 Average Forward Current,(A) 1.2 1.0 0.8 0.6 0.4 0.2 Tj=25°C Pulse width 300us 1% duty cycle 10 1 0.1 0.01 0 0 25 50 75 100 125 150 175 0 0.4 Ambient Temperature (°C) Fig.3 - Non-repetitive Forward Surge Current 1.6 1.2 2.0 Fig.4 - Typical Reverse Characteristics 60 100 TJ=25°C 8.3ms single half sine wave, JEDEC method 50 Average Forward Current,(A) Peak Forward Surge Current,(A) 0.8 Forward Voltage (V) 40 30 20 10 10 1 TJ=75°C 0.1 TJ=25°C 0 1 10 100 Number of Cycles at 60Hz 0.01 0 40 80 120 160 200 Percent of Rated Peak Reverse Voltage (%) Fig.5 - Typical Junction Capacitance Junction Capacitance,(pF) 700 600 500 400 300 200 100 0 0.01 0.1 1 10 100 Reverse Voltage (V) Company reserves the right to improve product design , functions and reliability without notice. REV:A Page 2 QW-JL003 Comchip Technology CO., LTD. Low VF Low IR 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 ....... ....... ....... ....... 10 pitches (min) Start 10 pitches (min) Direction of Feed SOD-123F SOD-123F SYMBOL A B C d D D1 D2 (mm) 1.90 ± 0.10 3.90 ± 0.10 1.68 ± 0.10 1.50 ± 0.10 178.00 ± 2.00 62.00 MIN. 13.0 ± 0.50 (inch) 0.075 ± 0.004 0.154 ± 0.004 0.066 ± 0.004 0.059 ± 0.004 7.008 ± 0.079 2.441 MIN. 0.512 ± 0.020 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 11.40 ± 1.00 (inch) 0.069 ± 0.004 0.138 ± 0.004 0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.002 0.315 ± 0.008 0.449 ± 0.039 Company reserves the right to improve product design , functions and reliability without notice. REV:A Page 3 QW-JL003 Comchip Technology CO., LTD. Low VF Low IR SMD Schottky Barrier Rectifiers Marking Code Part Number Marking Code CDBM140LR-HF 24 XX x x = Product type marking code Suggested PAD Layout SOD-123F SIZE E (mm) (inch) A 1.90 0.075 B 1.40 0.055 C 1.90 0.075 D 3.30 0.130 E 4.70 0.185 D C A B Standard Packaging REEL PACK Case Type SOD-123F REEL Reel Size ( pcs ) (inch) 2,500 7 Company reserves the right to improve product design , functions and reliability without notice. REV:A Page 4 QW-JL003 Comchip Technology CO., LTD.