Small Signal Schottky Diodes CDBT-54/S/C/A-HF Reverse Voltage: 30 Volts Forward Current: 200 mA RoHS Device Halogen free SOT-23 Features 0.122(3.10) -Design for mounting on small surface. 0.106(2.70) -High speed switching application, circuit 3 protection. 0.055(1.40) 0.047(1.19) -Low forward voltage drop. 1 2 0.083(2.10) 0.067(1.70) Mechanical data -Case: SOT-23, molded plastic. 0.010(0.25) -Terminals: solderable per MIL-STD-750, 0.003(0.08) method 2026. 0.045(1.15) 0.118(3.00) 0.035(0.90) 0.083(2.10) -Approx. weight: 0.008 grams -Packing 3,000 pieces per 7 reel. 0.005(0.13)max 0.020(0.51) Circuit diagram 0.020(0.50) 0.014(0.35) 0.012(0.30) 3 3 3 3 1 2 1 2 1 2 1 2 Dimensions in inches and (millimeter) CDBT-54-HF CDBT-54S-HF CDBT-54C-HF CDBT-54A-HF Maximum Ratings and Electrical Characteristics (at Ta=25C unless otherwise noted) Parameter Symbol Conditions Value Units Repetitive peak reverse voltage VRRM 30 V Reverse voltage VR 30 V Forward current IF 200 mA Peak surge forward current IFSM T<1.0 sec 600 mA Power dissipation PD 225 mW IF=0.1mA 0.24 IF=1mA 0.32 Maximum forward voltage VF IF=10mA 0.40 V IF=30mA 0.50 IF=100mA 1.00 Maximum reverse current IR VR=25V 2 A Maximum reverse recovery time Trr IF=IR=10mA, RL=100 5 nS Maximum diode capacitance CJ VR=1V, f=1.0MHz 10 pF Maximum junction temperature TJ 125 C Storage temperature TSTG -55 to +125 C Company reserves the right to improve product design , functions and reliability without notice. REV:B QW-JB004 Page 1 Comchip Technology CO., LTD.Small Signal Schottky Diodes RATING AND CHARACTERISTIC CURVES (CDBT-54/S/C/A-HF) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 1000 100 O TA=125 C 10 O TA=75 C 100 O TA=125 C 1 O 10 TA=25 C O O TA=-25 C 0.1 TA=0 C O TA=0 C O TA=25 C 1 O TA=75 C 0.01 0.1 0.001 0 10 20 30 40 50 0 0.2 0.4 0.6 0.8 1.0 Reverse Voltage (V) Forward Voltage (V) Fig.4- Power derating curve Fig.3- Capacitance between terminals characteristics 14 400 O TJ=25 C f=1MHz Mounted on glass epoxy PCBs 12 300 10 8 200 6 4 100 2 0 0 0 5 10 15 20 25 30 0 25 50 75 100 125 150 175 Reverse voltage, (V) Ambient temperature, ( C ) Company reserves the right to improve product design , functions and reliability without notice. REV:B QW-JB004 Page 2 Comchip Technology CO., LTD. Capacitance between terminals, (pF) Forward Current (mA) Power dissipation, (mW) Rev erse Curr en t( A)