Surface Mount Switching Diode COMCHIP www.comchip.com.tw CDST4148, CDST4448 Voltage: 75 Volts Power: 350 mWatts Feature SOT-23 Fast switching speed .119 (3.0) .110 (2.8) .020 (0.5) Electrically Identical to Standard JEDEC Top View High Conductance .056 (1.40) .047 (1.20) 3 Mechanical Data 2 .037(0.95) .037(0.95) Approx. Weight: 0.008 gram SINGLE .020 (0.5) .044 (1.10) .035 (0.90) 1 Terminals: Solderable per MIL-STD-202, Method 208 .006 (0.15)max. Case: SOT-23 Plastic Package .006 (0.15) .002 (0.05) Surface mount package Ideally Suited for Automatic insertion .103 (2.6) .086 (2.2) .020 (0.5) Dimensions in inches (millimeters) CDST4148, CDST4448 Maximum Ratings and Electrical Characterics Parameter Reverse Voltage Peak Reverse Voltage Rectified Current (Average), Half Wave Rectification with Resistive Load and f >=50 Hz Peak Forward Surge Current, 8.3ms single half sine-wave superimposed on rated load (JEDEC method) Power Dissipation Derate Above 25°C Maximum Forward Voltage @ IF=5mA @ IF=10mA Symbol VR CDST4148 75 CDST4448 75 Units V VRM 100 100 V IO 150 150 mA IFSM 2.0 4.0 A PTOT 350 1.0 0.72 1.0 V VF mW Maximum DC Reverse Current at Rated DC Blocking Voltage TJ= 25°C IR 2.5 2.5 uA Typical Junction Capacitance( Notes1) CJ 4.0 4.0 pF Maximum Reverse Recovery (Notes2) TRR 4.0 4.0 ns Maximum Thermal Resistance RșJA 357 °C/W TJ -55 to +125 °C Storage Temperature Range (1) CJ at VR = 0, f = 1MHZ (2) From IF = 10mA to I R = 1mA, V R = 6Volts, RL = 100 MDS0210008B Page 1 Surface Mount Switching Diode COMCHIP www.comchip.com.tw RATING AND CHARACTERISTIC CURVES (CDST4148) 10 TA=150OC REVERSE CURRENT, mA FORWARD CURRENT, mA 10 1.0 0.1 TA=125OC 1.0 TA=85OC 0.1 TA=55OC 0.01 TA=25OC 0.001 0.01 0.2 0.6 0.4 0.8 1.0 1.2 0 10 20 30 40 50 REVERSE VOLTAGE, Volts FORWARD VOLTAGE, Volts DIODE CAPACITANCE, pF 6.0 4.5 60 W 3.5 VRF=2V 2nF 5k W Vo 1.5 0 0 2 4 6 8 RECTIFICATION EFFCIENCY MEASUREMENT CIRCUIT REVERSE VOLTAGE, Volts TYPICAL CAPATICANCE MDS0210008B Page 2