Small Signal Schottky Diodes CDBT-40/S/C/A-G Reverse Voltage: 40 Volts Forward Current: 200 mA RoHS Device Features SOT-23 -Design for mounting on small surface. 0.118(3.00) -High speed switching application, circuit protection. 0.110(2.80) 3 -Low forward voltage drop. 0.055(1.40) 0.047(1.20) 1 Mechanical data 2 0.079(2.00) 0.071(1.80) -Case: SOT-23, molded plastic. -Terminals: solderable per MIL-STD-750, method 2026. 0.006(0.15) 0.003(0.08) -Approx. weight: 0.0078 grams 0.041(1.05) 0.100(2.55) 0.035(0.90) 0.089(2.25) Circuit diagram 0.004(0.10) max 3 3 3 3 0.020(0.50) 0.020(0.50) 0.012(0.30) 1 2 1 CDBT-40-G Marking Code: 43 2 1 2 1 CDBT-40S-G CDBT-40C-G Marking Code: 44 Marking Code: 45 0.012(0.30) 2 CDBT-40A-G Marking Code: 46 Dimensions in inches and (millimeter) Maximum Ratings (at Ta=25°C unless otherwise noted) Parameter Symbol Value Unit VRRM VRWM VR 40 V Forward continuous current IFM 200 mA Power dissipation PD 200 mW RθJA 625 °C/W Junction temperature TJ 125 °C Storage temperature TSTG -65 to +125 °C Peak repetitive peak reverse voltage Working peak reverse voltage DC blocking voltage Thermal resistance, junction to ambient Electrical Characteristics (at Ta=25°C unless otherwise noted) Parameter Reverse breakdown voltage Symbol Conditions Min. Max. Unit VBR IR=10μA Reverse voltage leakage current IR VR=30V 200 nA Forward voltage VF IF=1mA IF=40mA 380 1000 mV Diode capacitance CD VR=0V, f=1.0MHz 5 pF Reverse recovery time Trr Irr=1mA, IF=IR=10mA, RL=100Ω 5 nS 40 V Company reserves the right to improve product design , functions and reliability without notice. REV:C Page 1 QW-BA001 Comchip Technology CO., LTD. Small Signal Schottky Diodes RATING AND CHARACTERISTIC CURVES (CDBT-40/S/C/A-G) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 1000 10000 TA=125 OC Revverse Current, IR (nA) Forward Current, IF (mA) 1000 100 TA=125 OC 10 O TA=-40 C TA=0 OC TA=25 OC 1 O TA=75 C 100 TA=75 OC 0.1 TA=25 OC 1 TA=-40 C TA=0 OC O 0.1 0 0.2 0.4 0.6 0.8 0 1.0 10 30 20 40 Forward Voltage, VF (V) Reverse Voltage, VR (V) Fig.3 - Capacitance Between Terminals Characteristics Fig.4 - Power Derating Curve 50 240 5 Mounted on glass epoxy PCBs TJ=25°C f=1MHz 200 4 Power Dissipation, PD (mW) Capacitance Between Terminals, CT (pF) 10 3 2 1 160 120 80 40 0 0 0 10 20 30 40 50 0 25 50 75 100 125 150 Ambient Temperature, TA (°C) Reverse Voltage, VR (V) Company reserves the right to improve product design , functions and reliability without notice. REV:C Page 2 QW-BA001 Comchip Technology CO., LTD. Small Signal Schottky Diodes Reel Taping Specification P1 F E d P0 B XX 12 o 0 D2 D1 D W1 SOT-23 SOT-23 SYMBOL A B C d D D1 D2 (mm) 3.15 ± 0.10 2.77 ± 0.10 1.22 ± 0.10 1.50 ± 0.10 178.00 ± 2.00 54.40 ± 1.00 13.00 ± 1.00 (inch) 0.124 ± 0.004 0.109 ± 0.004 0.048 ± 0.004 0.059 ± 0.004 7.008 ± 0.079 2.142 ± 0.039 0.512 ± 0.039 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 / - 0.10 12.30 ± 1.00 (inch) 0.069 ± 0.004 0.138 ± 0.004 0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.004 0.315 + 0.012 / - 0.004 0.484 ± 0.039 Company reserves the right to improve product design , functions and reliability without notice. REV:C Page 3 QW-BA001 Comchip Technology CO., LTD. Small Signal Schottky Diodes Marking Code 3 Marking Code Part Number CDBT-40-G 43 CDBT-40S-G 44 CDBT-40C-G 45 CDBT-40A-G 46 XX 1 2 xx = Product type marking code Suggested PAD Layout B SOT-23 SIZE (mm) (inch) A 0.80 0.031 B 0.60 0.024 C 1.90 0.075 D 2.02 0.080 E 2.82 0.111 A D E C Standard Packaging Case Type SOT-23 Qty Per Reel Reel Size (Pcs) (inch) 3,000 7 Company reserves the right to improve product design , functions and reliability without notice. REV:C Page 4 QW-BA001 Comchip Technology CO., LTD.