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. -High speed switching application, circuit protection. 0.118(3.00) 0.110(2.80) 3 -Low forward voltage drop. 0.055(1.40) 0.047(1.20) Mechanical data 1 2 0.079(2.00) -Case: SOT-23, molded plastic. 0.071(1.80) -Terminals: solderable per MIL-STD-750, method 2026. 0.006(0.15) 0.002(0.05) -Approx. weight: 0.0078 grams 0.041(1.05) 0.100(2.55) 0.035(0.90) 0.089(2.25) Circuit diagram 3 3 3 3 0.004(0.10) max 0.020(0.50) 0.008(0.20) min 0.012(0.30) 1 2 CDBT-40-G Marking Code: 43 1 2 1 2 1 CDBT-40S-G CDBT-40C-G Marking Code: 44 Marking Code: 45 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 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 Rev er s e Curr e nt (n A) F o r w a r d C u r rent ( mA) 1000 100 TA=125 OC 10 O TA=-40 C TA=0 OC TA=25 OC 1 O TA=75 C 100 10 TA=25 OC 1 TA=-40 C TA=75 OC 0.1 TA=0 OC O 0.1 0 0.2 0.4 0.6 0.8 0 1.0 10 Forward Voltage (V) Fig.3 Capacitance Between Terminals Characteristics 40 30 50 Fig.4 Power Derating Curve 240 5 Mounted on glass epoxy PCBs TJ=25°C f=1MHz 200 4 Power Dissipation(mW) Capac i ta n c e Bet w een Te rmin a ls (p F ) 20 Reverse Voltage (V) 3 2 1 160 120 80 40 0 0 0 10 20 30 40 50 0 25 50 75 100 125 150 Ambient Temperature (°C) Reverse Voltage (V) REV:C Page 2 QW-BA001 Comchip Technology CO., LTD. Small Signal Schottky Diodes 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 SOT-23 SOT-23 SYMBOL A B C d D D1 D2 (mm) 3.10 ± 0.10 2.85 ± 0.10 1.40 ± 0.10 1.55 ± 0.10 178 ± 1 50.0 MIN. 13.0 ± 0.20 (inch) 0.122 ± 0.004 0.112 ± 0.004 0.055 ± 0.004 0.061 ± 0.004 7.008 ± 0.04 1.969 MIN. 0.512 ± 0.008 SYMBOL E F P P0 P1 W W1 (mm) 1.75 ± 0.10 3.50 ± 0.05 4.00 ± 0.10 4.00 ± 0.10 2.00 ± 0.05 8.00 ± 0.30 14.4 MAX. (inch) 0.069 ± 0.004 0.138 ± 0.002 0.157 ± 0.004 0.157 ± 0.004 0.079 ± 0.004 0.315 ± 0.008 0.567 MAX. REV:C Page 3 QW-BA001 Comchip Technology CO., LTD. Small Signal Schottky Diodes Marking Code 3 Part Number Marking Code 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 SOT-23 SIZE (mm) (inch) A 0.80 0.031 B 1.90 0.075 C 2.02 0.080 D 2.82 0.111 A C D B Standard Packaging REEL PACK Case Type SOT-23 REEL Reel Size ( pcs ) (inch) 3,000 7 REV:C Page 4 QW-BA001 Comchip Technology CO., LTD.