Small Signal Switching Diodes CDSV3-4148-G/4448-G Reverse Voltage: 75 Volts Forward Current: 200 mA RoHS Device Features SOT-323 -Design for mounting on small surface. -High speed switching. -High mounting capability, strong surge withstand, high reliability. -Also available in other standard case: CDSF4148/4448 - 1005 size CDSU4148/4448 - 0603 size 0.087(2.20) 0.070(1.80) 3 0.054(1.35) 0.045(1.15) 1 2 0.056(1.40) 0.047(1.20) Mechanical data 0.006(0.15) 0.002(0.05) -Case: SOT-323, molded plastic. -Terminals: solderable per MIL-STD-750, method 2026. -Approx. weight: 0.006 grams 0.087(2.20) 0.078(2.00) 0.044(1.10) 0.035(0.90) Circuit diagram 3 0.004(0.10)max. 0.016(0.40) 0.008(0.20) 1 2 0.004(0.10)min. Dimensions in inches and (millimeter) Maximum Ratings and Electrical Characteristics (at Ta=25°C unless otherwise noted) Parameter Repetitive peak reverse voltage Symbol Conditions CDSV34148-G CDSV34448-G Units VRRM 75 V Reverse voltage VR 75 V Forward current IF 200 mA Peak surge forward current IFSM Power dissipation PD Maximum forward voltage VF @IF=5mA @IF=50mA @IF=100mA Maximum reverse current IR @VR=75V @VR=25V Maximum reverse recovery time Trr Typical diode capacitance CJ Maximum junction temperature Storage temperature T=1.0 μS 2 4 200 1 - A mW 0.72 1 V 2.5 0.025 μA IF=IR=10mA, RL=100Ω 4 nS VR=0V, f=1.0MHz 4 pF TJ 125 °C TSTG -55 to +125 °C REV:A Page 1 QW-B0006 Comchip Technology CO., LTD. Small Signal Switching Diodes RATING AND CHARACTERISTIC CURVES (CDSV3-4148-G/4448-G) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 10μ 1000 Reverse Current, (A) Forward Current, (mA) O 100 O TA=150 C TA=-40 OC O TA=75 C 10 O TA=0 C TA=125 C 1μ 100n TA=75 OC 10n TA=25 OC O TA=0 C O TA=25 C 1n 1 O TA=-40 C 0.1n 0 0.5 1.0 1.5 20 0 Fig.3 - Capacitance Between Terminals Characteristics 80 60 100 Fig.4 - Power Derating Curve 2 300 Mounted on glass epoxy PCBs O TJ=25 C f=1MHz Power Dissipation, (mW) Capacitance Between Terminals,(pF) 40 Reverse Voltage, (V) Forward Voltage, (V) 1 250 200 150 100 50 0 0 0 10 20 30 40 50 0 25 50 75 100 125 150 175 Ambient Temperature, (°C) Reverse Voltage, (V) REV:A Page 2 QW-B0006 Comchip Technology CO., LTD.