VS-20TQ035SPbF, VS-20TQ040SPbF, VS-20TQ045SPbF Vishay High Power Products Schottky Rectifier, 20 A FEATURES 150 C T operation J Low forward voltage drop Base cathode High frequency operation 2 High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Guard ring for enhanced ruggedness and long term reliability 1 2 3 D PAK N/C Anode Meets MSL level 1, per J-STD-020, LF maximum peak of 260 C Halogen-free according to IEC 61249-2-21 definition Compliant to RoHS directive 2002/95/EC AEC-Q101 qualified PRODUCT SUMMARY DESCRIPTION I 20 A F(AV) The VS-20TQ... Schottky rectifier series has been optimized V 35 V to 45 V R 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, converters, freewheeling diodes, and reverse battery protection. MAJOR RATINGS AND CHARACTERISTICS SYMBOL CHARACTERISTICS VALUES UNITS I Rectangular waveform 20 A F(AV) V Range 35 to 45 V RRM I t = 5 s sine 1800 A FSM p V 20 Apk, T = 125 C 0.51 V F J T Range - 55 to 150 C J VOLTAGE RATINGS PARAMETER SYMBOLVS-20TQ035SPbFVS-20TQ040SPbFVS-20TQ045SPbFUNITS Maximum DC reverse voltage V R 35 40 45 V Maximum working peak reverse voltage V RWM ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL TEST CONDITIONS VALUESUNITS Maximum average forward current I 50 % duty cycle at T = 116 C, rectangular waveform 20 F(AV) C See fig. 5 Maximum peak one cycle Following any rated load A 5 s sine or 3 s rect. pulse 1800 non-repetitive surge current I condition and with rated FSM 10 ms sine or 6 ms rect. pulse 400 See fig. 7 V applied RRM Non-repetitive avalanche energy E T = 25 C, I = 4 A, L = 3.40 mH 27 mJ AS J AS Current decaying linearly to zero in 1 s Repetitive avalanche current I 4A AR Frequency limited by T maximum V = 1.5 x V typical J A R Document Number: 94168 For technical questions, contact: diodestech vishay.com www.vishay.com Revision: 12-Mar-10 1 VS-20TQ035SPbF, VS-20TQ040SPbF, VS-20TQ045SPbF Schottky Rectifier, 20 A Vishay High Power Products ELECTRICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS 20 A 0.57 T = 25 C J 40 A 0.73 Maximum forward voltage drop (1) V V FM See fig. 1 20 A 0.51 T = 125 C J 40 A 0.67 T = 25 C 2.7 Maximum reverse leakage current J (1) I V = Rated V mA RM R R See fig. 2 T = 125 C 105 J Maximum junction capacitance C V = 5 V (test signal range 100 kHz to 1 MHz), 25 C 1400 pF T R DC Typical series inductance L Measured lead to lead 5 mm from package body 8.0 nH S Maximum voltage rate of change dV/dt Rated V 10 000 V/s R Note (1) Pulse width < 300 s, duty cycle < 2 % THERMAL - MECHANICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS VALUESUNITS Maximum junction and storage T , T - 55 to 150 C J Stg temperature range Maximum thermal resistance, DC operation R 1.50 thJC junction to case See fig. 4 C/W Typical thermal resistance, R Mounting surface, smooth and greased 0.50 thCS case to heatsink 2g Approximate weight 0.07 oz. minimum 6 (5) kgf cm Mounting torque (lbf in) maximum 12 (10) 2 Marking device Case style D PAK 20TQ045S www.vishay.com For technical questions, contact: diodestech vishay.com Document Number: 94168 2 Revision: 12-Mar-10