Small Signal Switching Diodes CDSL4148-G/4448-G Reverse Voltage: 75 Volts Power Dissipation: 500 mW RoHS Device MiniMELF (SOD-80) Features -Design for mounting on small surface. -High speed switching. -High mounting capability, strong surge withstand, high reliability. 0.020(0.50) 0.012(0.30) -Also available in other standard case: CDSF4148/4448 - SOD323F(1005) size 0.063(1.60) CDSU4148/4448 - SOD523F(0603) size 0.055(1.40) Mechanical data 0.146(3.70) 0.134(3.40) -Case: MiniMELF, glass case. -Terminals: solderable per MIL-STD-750, method 2026. -Polarity: indicated by cathode band. Dimensions in inches and (millimeter) -Approx. weight: 0.05 grams Maximum Ratings and Electrical Characteristics (at Ta=25C unless otherwise noted) Parameter Symbol Conditions CDSL4148-G CDSL4448-G Units Repetitive peak reverse voltage VRRM 75 V Reverse voltage VR 75 V Forward current IFM 300 500 mA Averaged forward current IO 150 mA Peak surge forward current IFSM T=1.0 S 2 A Power dissipation PD 500 mW IF=5mA - 0.72 IF=10mA 1 - V Maximum forward voltage VF IF=100mA - 1 VR=75V 2.5 A Maximum reverse current IR VR=25V 0.025 Maximum reverse recovery time Trr IF=10mA, RL=50 , VR=6V 4 nS Typical diode capacitance CJ VR=0V, f=1.0MHz 4 pF Maximum junction temperature TJ 175 C Storage temperature TSTG -65 to +175 C REV:B QW-B0012 Page 1 Comchip Technology CO., LTD.Small Signal Switching Diodes RATING AND CHARACTERISTIC CURVES (CDSL4148-G/4448-G) Fig.1 - Forward Characteristics Fig.2 - Reverse Characteristics 1000 10 TA=125C 1 100 100n TA=75C TA=150C TA=-40C TA=25C 10n TA=75C 10 TA=25C 1n TA=-40C 1 0.1n 0 0.5 1.0 1.5 0 20 40 60 80 100 Forward Voltage, (V) Reverse Voltage, (V) Fig.3 - Capacitance Between Terminals Fig.4 - Power Derating Curve Characteristics 2 600 Mounted on glass TJ=25C epoxy PCBs f=1MHz 500 400 1 300 200 100 0 0 0 10 20 30 40 50 0 25 50 75 100 125 150 175 Reverse Voltage, (V) Ambient Temperature, (C) REV:B QW-B0012 Page 2 Comchip Technology CO., LTD. Forward Current, (mA) Capacitance Between Terminals , (pF) Power Dissipation, (mW) Reverse Current, (A)