47CTQ020

Bulletin PD-20854 rev. A 02/07 47CTQ020PbF SCHOTTKY RECTIFIER 40 Amp IF(AV) = 40Amp VR = 20V Major Ratings and Characteristics Characteristics IF(AV) Rectangular waveform VRRM IFSM @ tp = 5 μs sine VF TJ @ 20 Apk, TJ= 125 °C Description/ Features Units A V A V °C This center tap Schottky rectifier has been optimized for ultra low forward voltage drop specifically for 3.3V output power supplies. The proprietary barrier technology allows for reliable operation up to 150 °C junction temperature. Typical applications are in parallel switching power supplies, converters, reverse battery protection, and redundant power subsystems. 150 °C TJ operation Values 40 20 1000 0.34 - 55 to 150 Center tap configuration Optimized for 3.3V application Ultra low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Lead-Free ("PbF" suffix) Case Styles Base Common Cathode 2 1 Anode 2 Common Cathode 3 Anode TO-220 www.irf.com 1 47CTQ020PbF Bulletin PD-20854 rev. A 02/07 Voltage Ratings Part number VR VR Max. DC Reverse Voltage (V) Max. DC Reverse Voltage (V) @ 125° C @ 150° C 47CTQ020PbF 20 10 Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward (Per Device) Current (Per Leg) IFSM EAS IAR Max. Peak One Cycle Non-Repetitive Surge Current (Per Leg) Non-Repetitive Avalanche Energy (Per Leg) Repetitive Avalanche Current (Per Leg) 47CTQ Units 40 20 1000 250 18 3 A A mJ A Conditions 50% duty cycle @ TC = 135°C, rectangular wave form 5μs Sine or 3μs Rect. pulse Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied TJ = 25 °C, I AS = 3 Amps, L =3 mH Current decaying linearly to zero in 1 μsec Frequency limited by TJ max. VA = 1.5 x VR typical Electrical Specifications Parameters VFM Max. Forward Voltage Drop (Per Leg) (1) 47CTQ Units 0.45 0.51 0.34 0.44 0.31 0.42 V V V V V V mA mA mA mA mA V mΩ pF nH @ 20A @ 40A @ 20A @ 40A @ 20A @ 40A TJ = 25 °C TJ = 125 °C TJ = 125 °C TJ = 125 °C TJ = 150 °C TJ = T J max. Conditions TJ = 25 °C TJ = 125 °C TJ = 150 °C VR = rated VR V R = 5V VR = 3.3V VR = 10V IRM Max. Reverse Leakage Current (Per Leg) (1) 3 310 60 45 306 VF(TO) Threshold Voltage rt Forward Slope Resistance CT LS Max. Junction Capacitance (Per Leg) Typical Series Inductance (Per Leg) 0.188 5.9 3000 5.5 10000 VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C Measured lead to lead 5mm from package body dv/dt Max. Voltage Rate of Change V/ μs (Rated VR) (1) Pulse Width < 300μs, Duty Cycle