Small Signal Switching Diodes CDST-99-G/70-G/56-G Reverse Voltage: 70 Volts Forward Current: 200 mA SOT-23 RoHS Device 0.122(3.10) Features 0.106(2.70) -Design for mounting on small surface. 3 -High speed switching. 0.055(1.40) -High mounting capability, strong surge 0.047(1.19) withstand, high reliability. 1 2 0.083(2.10) Mechanical data 0.067(1.70) -Case: SOT-23, molded plastic. -Terminals: solderable per MIL-STD-750, 0.010(0.25) method 2026. 0.003(0.08) -Approx. weight: 0.0078 grams 0.045(1.15) 0.118(3.00) 0.035(0.90) 0.083(2.10) Circuit diagram 3 3 3 0.005(0.13)max 0.020(0.51) 0.020(0.50) 0.014(0.35) 0.012(0.30) 1 2 1 2 1 2 CDST-99-G CDST-70-G CDST-56-G Dimensions in inches and (millimeter) Maximum Ratings (at Ta=25C unless otherwise noted) Parameter Symbol CDST-56-G CDST-70-G CDST-99-G Units Reverse voltage VR 70 V Forward current IF 200 215 mA Peak surge forward current IFSM 500 mA Power dissipation (FR-5 board ) PD 225 mW Thermal resistance, junction to ambient RJA 556 C/W Maximum junction temperature TJ -55 to +150 C Storage temperature TSTG -55 to +150 C Electrical Characteristics (at Ta=25C unless otherwise noted) Parameter Symbol Conditions Min. Max. Units Reverse breakdown voltage IR=100A VBR 70 V 0.715 IF=1mA IF=10mA 0.855 Forward voltage VF V IF=50mA 1.0 IF=150mA 1.25 VR=70V A Reverse current IR 2.5 IF=IR=10mA, Irr=0.1IR, Reverse recovery time trr 6 nS RL=100 Diode capacitance VR=0V, f=1.0MHz pF CT 2 Company reserves the right to improve product design , functions and reliability without notice. REV:F QW-B0002 Page 1 Comchip Technology CO., LTD.Small Signal Switching Diodes RATING AND CHARACTERISTIC CURVES (CDST-99-G/70-G/56-G) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 10 1000 TA=125C 1 100 TA=150C TA=-40C 100n TA=75C TA=75C TA=0C 10 TA=25C 10n TA=0C TA=25C 1 1n TA=-40C 0.1 0.1n 0 20 40 60 80 100 0 0.5 1.0 1.5 Forward Voltage, (V) Reverse Voltage, (V) Fig.3 - Capacitance Between Terminals Fig.4 - Power Derating Curve Characteristics 2 300 TJ=25C Mounted on glass f=1MHz epoxy PCBs 200 1 100 50 0 0 30 75 0 10 20 40 50 0 25 50 100 125 150 175 Reverse Voltage, (V) Ambient Temperature, (C) Company reserves the right to improve product design , functions and reliability without notice. REV:F QW-B0002 Page 2 Comchip Technology CO., LTD. Forward Current, (mA) Capacitance Between Teminals, (pF) Power Dissipation, (mW) Reverse Current, (A)