40L40CW

Bulletin PD-20566 rev. B 07/02 40L40CW 40L45CW SCHOTTKY RECTIFIER 2 x 20 Amps Major Ratings and Characteristics Characteristics IF(AV) Rectangular waveform VRRM IFSM @ tp = 5 µs sine VF TJ @ 20 Apk, TJ=125°C (per leg, Typical) Description/ Features Units A The 40L..CW center tap Schottky rectifier has been optimized for very low forward voltage drop, with moderate leakage. The proprietary barrier technology allows for reliable operation up to 150° C junction temperature. Typical applications are in switching power supplies. 150° C TJ operation Center tap TO-247 package 40L..CW 40 40 - 45 1240 0.42 V A V High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Very low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability - 55 to 150 °C Case Styles 40L..CW Base Common Cathode 2 1 3 2 Anode 1 Anode 2 TO-247AC Common Cathode www.irf.com 1 40L40CW, 40L45CW Bulletin PD-20566 rev. B 07/02 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) 40L40CW 40 40L45CW 45 Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current IFSM EAS IAR * See Fig. 5 (Per Leg) (Per Device) 40L..CW Units 20 40 1240 350 20 3 A mJ A A Conditions 50% duty cycle @ TC = 122 °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 Max. Peak One Cycle Non-Repetitive Surge Current (Per Leg) * See Fig. 7 Non-Repetitive Avalanche Energy (Per Leg) Repetitive Avalanche Current (Per Leg) TJ = 25 °C, IAS = 3 Amps, L = 4.4 mH Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. VA = 1.5 x VR typical Electrical Specifications Parameters VFM Forward Voltage Drop (Per Leg) * See Fig. 1 40L..CW Units Typ. 0.48 0.61 0.42 0.60 (1) 20 Max. 0.53 0.69 0.49 0.70 1.5 80 0.27 8.72 7.5 1500 V V V V mA mA V mΩ pF nH @ 20A @ 40A @ 20A @ 40A Conditions TJ = 25 °C TJ = 125 °C VR = rated VR (1) IRM Reverse Leakage Current (Per Leg) * See Fig. 2 TJ = 25 °C TJ = 100 °C TJ = TJ max. VF(TO) Threshold Voltage rt CT LS Forward Slope Resistance Max. Junction Capacitance (Per Leg) Typical Series Inductance (Per Leg) 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 10000 V/ µs (Rated VR) (1) Pulse Width < 300µs, Duty Cycle