TO-47AC PRODUCT SUMMARY I F(AV) V R Anode Base common cathode 3 Common cathode x 5 A 8/ V Anode FEATURES 75 C operation Center tap TO-47 package 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 3CPQ... center tap Schottky rectifier has been optimized for low reverse leakage at high temperature. The proprietary barrier technology allows for reliable operation up to 75 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 3 A V RRM 8/ V I FSM t p = 5 µs sine 9 A V F 5 Apk, = 5 C (per leg).67 V - 55 to 75 C VOLTAGE RATINGS PARAMETER SYMBOL 3CPQ8 3CPQ UNITS Maximum DC reverse voltage V R Maximum working peak reverse voltage V RWM 8 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 = 4 C, rectangular waveform 3 Maximum peak one cycle 5 µs sine or 3 µs rect. pulse Following any rated load 9 A non-repetitive surge current per leg I FSM condition and with rated See fig. 7 ms sine or 6 ms rect. pulse V RRM applied 4 Non-repetitive avalanche energy per leg E AS = 5 C, I AS =.5 A, L = 6 mh 7.5 mj Current decaying linearly to zero in µs Repetitive avalanche current per leg I AR Frequency limited by maximum V A =.5 x V R typical.5 A Document Number: 933 For technical questions, contact: diodes-tech@vishay.com www.vishay.com Revision: -Aug-8
ELECTRICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS Maximum forward voltage drop per leg See fig. Note () Pulse width < 3 µs, duty cycle < % V FM () 5 A.86 = 5 C 3 A.5 5 A.67 = 5 C 3 A.8 Maximum reverse leakage current per leg = 5 C.55 I () RM V R = Rated V R See fig. = 5 C 7 ma Maximum junction capacitance per leg C T V R = 5 V DC (test signal range khz to MHz) 5 C 5 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 V THERMAL - MECHANICAL SPECIFICATIONS PARAMETER SYMBOL TEST CONDITIONS VALUES UNITS Maximum junction and storage temperature range, T Stg - 55 to 75 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. DC operation. R thcs Mounting surface, smooth and greased.4 C/W 6 g. oz. minimum 6 (5) kgf cm Non-lubricated threads maximum () (lbf in) Case style TO-47AC (JEDEC) 3CPQ8 3CPQ www.vishay.com For technical questions, contact: diodes-tech@vishay.com Document Number: 933 Revision: -Aug-8
I F - Instantaneous Forward Current (A). = 75 C = 5 C = 5 C.5..5..5 I R -Reverse Current (ma).... = 75 C = 5 C = 5 C = C = 75 C = 5 C = 5 C 4 6 8 V FM - Forward Voltage Drop (V) Fig. - Maximum Forward Voltage Drop Characteristics (Per Leg) V R - Reverse Voltage (V) Fig. - Typical Values of Reverse Current vs. Reverse Voltage (Per Leg) C T - Junction Capacitance (pf) = 5 C 4 6 8 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: 933 For technical questions, contact: diodes-tech@vishay.com www.vishay.com Revision: -Aug-8 3
Allowable Case Temperature ( C) 8 75 7 65 6 55 5 45 R thjc (DC) = C/W DC 4 6 8 4 6 8 Average Power Loss (W) 4 8 6 4 D =.8 D =.7 D =.5 D =.33 D =.5 DC RMS limit 4 6 8 4 6 8 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: 933 4 Revision: -Aug-8
ORDERING INFORMATION TABLE Device code 3 C P Q - 3 4 5 6 - Current rating - 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 8 = 8 V = 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: 933 For technical questions, contact: diodes-tech@vishay.com www.vishay.com Revision: -Aug-8 5
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