Small Signal Switching Diodes CDSW4448-G Reverse Voltage: 75 Volts Power Dissipation: 400 mW RoHS Device SOD-123 Features -Design for mounting on small surface. -High speed switching. 0.110(2.80) 0.098(2.50) -High mounting capability, strong surge withstand, high reliability. 0.028(0.70) 0.071(1.80) 0.019(0.50) 0.055(1.40) -Also available in other standard case: CDSN4448 - 1206 size 0.154(3.90) 0.141(3.60) CDSF4448 - 1005 size CDSU4448 - 0603 size Mechanical data 0.053(1.35) 0.008(0.20) 0.037(0.95) Max. -Case: SOD-123, molded plastic. 0.005(0.12) 0.016(0.40) Min. Max. -Terminals: solderable per MIL-STD-750, method 2026. -Polarity: indicated by cathode band. Dimensions in inches and (millimeter) -Approx. weight: 0.01 grams Maximum Ratings and Electrical Characteristics (at Ta=25C unless otherwise noted) Parameter Symbol Conditions Value Units Repetitive peak reverse voltage VRRM 75 V Reverse voltage VR 75 V Forward current IFM 500 mA Peak surge forward current IFSM T=1.0 S 4 A Power dissipation PD 400 mW IF=5mA 0.72 IF=10mA 0.855 Maximum forward voltage VF V IF=100mA 1 IF=150mA 1.25 VR=75V 2.5 Maximum reverse current IR A VR=25V 0.025 Maximum reverse recovery time Trr IF=10mA, RL=100 4 nS Typical diode capacitance CJ VR=0V, f=1.0MHz 4 pF O Maximum junction temperature TJ 125 C O Storage temperature TSTG -55 to +125 C REV:A QW-B0013 Page 1 Comchip Technology CO., LTD.Small Signal Switching Diodes RATING AND CHARACTERISTIC CURVES (CDSW4448-G) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 100 10 1 10 O TA=125 C 100n O TA=85 C O O TA=-30 C TA=75 C 10n O O TA=50 C TA=0 C 1 O TA=25 C O TA=0 C O TA=25 C O 1n TA=-30 C 0.1 0.1n 0 0.2 0.4 0.6 0.8 1.0 0 20 40 60 80 100 Forward Voltage, (V) Reverse Voltage, (V) Fig.3 - Capacitance Between Terminals Fig.4 - Power Derating Curve Characteristics 4 600 O Mounted on glass TJ=25 C epoxy PCBs f=1MHz 500 3 400 2 300 200 1 100 0 0 0 1 2 3 4 5 6 0 25 50 75 100 125 150 175 Reverse Voltage, (V) Ambient Temperature, (C) REV:A QW-B0013 Page 2 Comchip Technology CO., LTD. Forward Current, Capacitance Between Terminals , (pF) (mA) Power Dissipation, (mW) Reverse Current, (A)