20CTQ045PBF

Bulletin PD-20842 rev. B 05/06 20CTQ...PbF Series SCHOTTKY RECTIFIER 20 Amp IF(AV) = 20Amp VR = 35/ 45V Major Ratings and Characteristics Characteristics IF(AV) Rectangular waveform VRRM range IFSM @ tp = 5 μs sine VF TJ @ 10 Apk, TJ = 125°C (per leg) range Description/ Features Units A The 20CTQ...PbF center tap Schottky rectifier series has been optimized for low reverse leakage at high temperature. The proprietary barrier technology allows for reliable operation up to 175° C junction temperature. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. 175° C TJ operation Center tap TO-220 package Low forward voltage drop High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance High frequency operation Guard ring for enhanced ruggedness and long term reliability Lead-Free ("PbF" suffix) Values 20 35/ 45 1060 0.57 V A V - 55 to 175 °C Case Styles 20CTQ...PbF Base Common Cathode 2 1 Anode 2 Common Cathode 3 Anode TO-220 www.irf.com 1 20CTQ...PbF Bulletin PD-20842 rev. B 05/06 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) 20CTQ035PbF 20CTQ040PbF 35 40 20CTQ045PbF 45 Absolute Maximum Ratings Parameters IF(AV) Max. Average Forward Current * See Fig. 5 IFSM EAS IAR Max. Peak One Cycle Non-Repetitive Surge Current (Per Leg) * See Fig. 7 Non-Repetitive Avalanche Energy (Per Leg) Repetitive Avalanche Current (Per Leg) 1060 265 13 2.0 A mJ A 5μs Sine or 3μs Rect. pulse Following any rated load condition and with 10ms Sine or 6ms Rect. pulse rated VRRM applied 20CTQ Units 20 A Conditions 50% duty cycle @ TC = 145°C, rectangular wave form TJ = 25 °C, IAS = 2.0 Amps, L = 6.5 mH Current decaying linearly to zero in 1 μsec Frequency limited by TJ max. V A = 1.5 x VR typical Electrical Specifications Parameters VFM Max. Forward Voltage Drop (Per Leg) * See Fig. 1 (1) 20CTQ Units 0.64 0.76 0.57 0.68 2 15 900 8.0 10000 V V V V mA mA pF nH V/ μs @ 10A @ 20A @ 10A @ 20A TJ = 25 °C TJ = 125 °C Conditions TJ = 25 °C TJ = 125 °C VR = rated VR IRM CT LS Max. Reverse Leakage Current (Per Leg) * See Fig. 2 (1) 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 (Rated V R) Thermal-Mechanical Specifications Parameters TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range (1) Pulse Width < 300μs, Duty Cycle