20CTQ040-1

Bulletin PD-20056 rev. A 12/01 20CTQ... 20CTQ...S 20CTQ... -1 SCHOTTKY RECTIFIER 20 Amp IF(AV) = 20Amp VR = 35 to 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 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 20CTQ 20 35 to 45 1060 0.57 V A V - 55 to 175 °C Case Styles 20CTQ... 20CTQ... S 20CTQ... -1 Base Common Cathode 2 Base Common Cathode 2 Base Common Cathode 2 1 Anode 2 Common Cathode 3 1 Anode Anode 2 Common Cathode 3 1 Anode Anode 2 Common Cathode 3 Anode TO-220 www.irf.com D PAK 2 TO-262 1 20CTQ... Series Bulletin PD-20056 rev. A 12/01 Voltage Ratings Part number VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) 20CTQ035 35 20CTQ040 40 20CTQ045 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 mJ A 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. VA = 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 VR) Thermal-Mechanical Specifications Parameters TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range (1) Pulse Width < 300µs, Duty Cycle