Small Signal Schottky Diodes CDBT-70/S/C/A-G Reverse Voltage: 70 Volts Forward Current: 70 mA RoHS Device Features SOT-23 -Design for mounting on small surface. 0.118(3.00) -High speed switching application, circuit 0.110(2.80) protection. 3 -Low turn-on voltage. 0.055(1.40) 0.047(1.20) 1 2 Mechanical data 0.079(2.00) 0.071(1.80) -Case: SOT-23, molded plastic. -Terminals: solderable per MIL-STD-750, 0.006(0.15) method 2026. 0.003(0.08) 0.041(1.05) -Approx. weight: 0.008 grams 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) 0.012(0.30) 1 2 1 2 1 2 1 2 Dimensions in inches and (millimeter) CDBT-70-G CDBT-70S-G CDBT-70C-G CDBT-70A-G Maximum Ratings and Electrical Characteristics (at Ta=25C unless otherwise noted) Parameter Symbol Conditions Value Units Repetitive peak reverse voltage VRRM 70 V Reverse voltage VR 70 V IF mA Forward continuous current 70 IFSM mA Non-Repetitive peak forward surge current T=1.0 sec 100 PD mW Power dissipation 200 IF=1.0mA 410 Maximum forward voltage VF mV IF=15mA 1000 Maximum reverse leakage current VR=50V 100 IR nA Maximum reverse recovery time IF=IR=10mA, RL=100 , Irr=0.1*IR 5 Trr nS Maximum diode capacitance CD VR=0V, f=1.0MHz 2 pF Thermal Resistance Junction to Ambient R JA 500 C/W Junction temperature TJ 125 C Storage temperature TSTG -55 to +150 C Company reserves the right to improve product design , functions and reliability without notice. REV:B QW-BA003 Page 1 Comchip Technology CO., LTD.Small Signal Schottky Diodes RATING AND CHARACTERISTIC CURVES (CDBT-70/S/C/A-G) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 10 100 TA=100C 10 TA=25C 1 TA=100C 1 0.1 TA=25C 0.1 0.01 0.01 0 0.2 0.4 0.6 0.8 1.0 0 10 20 30 40 50 60 70 Forward Voltage, (V) Reverse Voltage, (V) Fig.3 - Capacitance Characteristics Fig.4 - Power Derating Curve 3.0 300 O TJ=25 C f=1MHz 2.5 250 200 2.0 150 1.5 1.0 100 0.5 50 0 0 0 10 20 30 40 50 60 70 0 25 50 75 100 125 Ambient Temperature, (C) Reverse Voltage, (V) Company reserves the right to improve product design , functions and reliability without notice. REV:B QW-BA003 Page 2 Comchip Technology CO., LTD. Forward Current, (mA) Capacitance Between Terminals, (pF) Power Dissipation, (mW) Reverse Current, (A)