Schottky Rectifier, x A Vishay High Power Products TO-47AC PRODUCT SUMMARY I F(AV) V R Anode Base common cathode 3 Common cathode x A 35 to 45 V Anode FEATURES 5 C operation Center tap TO-47 package Very low forward voltage drop High frequency operation High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Guard ring for enhanced ruggedness and long term reliability Designed and qualified for industrial level DESCRIPTION The 4CPQ... 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 5 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 F(AV) Rectangular waveform 4 A V RRM 35 to 45 V I FSM t p = 5 µs sine 35 A V F Apk, = 5 C (per leg).43 V - 55 to 5 C VOLTAGE RATINGS PARAMETER SYMBOL 4CPQ35 4CPQ4 4CPQ45 UNITS Maximum DC reverse voltage V R Maximum working peak reverse voltage V RWM 35 4 45 V ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS Maximum average forward current See fig. 5 I F(AV) 5 % duty cycle at T C = C, rectangular waveform 4 Maximum peak one cycle non-repetitive 5 µs sine or 3 µs rect. pulse Following any rated load 35 A surge current per leg I FSM condition and with rated See fig. 7 ms sine or 6 ms rect. pulse V RRM applied 43 Non-repetitive avalanche energy per leg E AS = 5 C, I AS = 4 A, L = 3.4 mh 7 mj Current decaying linearly to zero in µs Repetitive avalanche current per leg I AR 4 A Frequency limited by maximum V A =.5 x V R typical Document Number: 93336 For technical questions, contact: diodes-tech@vishay.com www.vishay.com Revision: -Aug-8
Vishay High Power Products Schottky Rectifier, x A ELECTRICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS A.49 = 5 C Maximum forward voltage drop per leg 4 A.59 V () FM See fig. A.43 = 5 C 4 A.56 V Maximum reverse leakage current per leg = 5 C 4 I () RM V R = Rated V R See fig. = 5 C 5 ma Maximum junction capacitance per leg C T V R = 5 V DC (test signal range khz to MHz) 5 C 85 pf Typical series inductance per leg L S Measured lead to lead 5 mm from package body 7.5 nh Maximum voltage rate of change dv/dt Rated V R V/µs Note () Pulse width < 3 µs, duty cycle < % THERMAL - MECHANICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS Maximum junction and storage temperature range, T Stg - 55 to 5 C Maximum thermal resistance, junction to case per leg Maximum thermal resistance, junction to case per package Typical thermal resistance, case to heatsink Approximate weight Mounting torque Marking device R thjc DC operation See fig. 4.5 DC operation.63 R thcs Mounting surface, smooth and greased.4 C/W 6 g. oz. minimum 6 (5) kgf cm Non-lubricated threads maximum () (lbf in) 4CPQ35 Case style TO-47AC (JEDEC) 4CPQ4 4CPQ45 www.vishay.com For technical questions, contact: diodes-tech@vishay.com Document Number: 93336 Revision: -Aug-8
Schottky Rectifier, x A Vishay High Power Products I F - Instantaneous Forward Current (A). = 5 C = 5 C = 5 C..4.6.8...4 I R - Reverse Current (ma)... = 5 C = 5 C = C = 75 C = 5 C = 5 C 5 5 5 3 3 4 45 V FM - Forward Voltage Drop (V) V R - Reverse Voltage (V) Fig. - Maximum Forward Voltage Drop Characteristics (Per Leg) Fig. - Typical Values of Reverse Current vs. Reverse Voltage (Per Leg) C T - Junction Capacitance (pf) = 5 C 3 4 5 V R - Reverse Voltage (V) Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage (Per Leg) Z thjc - Thermal Impedance ( C/W).. Single pulse (thermal resistance) D =.5 D =.33 D =.5 D =.7 D =.8...... t - Rectangular Pulse Duration (s) Fig. 4 - Maximum Thermal Impedance Z thjc Characteristics (Per Leg) P DM Notes:. Duty factor D = t /t. Peak = P DM x Z thjc + T C t t Document Number: 93336 For technical questions, contact: diodes-tech@vishay.com www.vishay.com Revision: -Aug-8 3
Vishay High Power Products Schottky Rectifier, x A Allowable Case Temperature ( C) 55 5 45 4 35 3 R thjc (DC) =.5 C/W DC 5 5 5 3 Average Power Loss (W) 4 8 6 4 D =.8 D =.7 D =.5 D =.33 D =.5 DC RMS limit 5 5 5 3 I F(AV) - Average Forward Current (A) Fig. 5 - Maximum Allowable Case Temperature vs. Average Forward Current (Per Leg) I F(AV) - Average Forward Current (A) Fig. 6 - Forward Power Loss Characteristics (Per Leg) I FSM - Non-Repetitive Surge Current (A) At any rated load condition and with rated V RRM applied following surge t p - Square Wave Pulse Duration (µs) Fig. 7 - Maximum Non-Repetitive Surge Current (Per Leg) L D.U.T. IRFP46 High-speed switch Current monitor R g = 5 Ω Freewheel diode 4HFL4S + V d = 5 V Fig. 8 - Unclamped Inductive Test Circuit www.vishay.com For technical questions, contact: diodes-tech@vishay.com Document Number: 93336 4 Revision: -Aug-8
Schottky Rectifier, x A Vishay High Power Products ORDERING INFORMATION TABLE Device code 4 C P Q 45-3 4 5 6 - Current rating (4 = 4 A) - Circuit configuration: C = Common cathode 3 - Package: P = TO-47 4 - Schottky Q series 5 - Voltage code 6 - None = Standard production PbF = Lead (Pb)-free 35 = 35 V 4 = 4 V 45 = 45 V Tube standard pack quantity: 5 pieces Dimensions Part marking information LINKS TO RELATED DOCUMENTS http://www.vishay.com/doc?953 http://www.vishay.com/doc?956 Document Number: 93336 For technical questions, contact: diodes-tech@vishay.com www.vishay.com Revision: -Aug-8 5
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