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| 18TQ...PbF Series Vishay High Power Products Schottky Rectifier, 18 A FEATURES Base cathode 2 * * * * TO-220AC 1 Cathode 3 Anode 175 C TJ operation Pb-free Low forward voltage drop Available High frequency operation High purity, high temperature epoxy RoHS* COMPLIANT encapsulation for enhanced mechanical strength and moisture resistance * Guard ring for enhanced ruggedness and long term reliability * Lead (Pb)-free ("PbF" suffix) * Designed and qualified for industrial level DESCRIPTION PRODUCT SUMMARY IF(AV) VR 18 A 35 to 50 V The 18TQ...PbF 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, freewheeling diodes, and reverse battery protection. MAJOR RATINGS AND CHARACTERISTICS SYMBOL IF(AV) VRRM IFSM VF TJ CHARACTERISTICS Rectangular waveform Range tp = 5 s sine 18 Apk, TJ = 125 C Range VALUES 18 35 to 50 1800 0.53 - 55 to 175 UNITS A V A V C VOLTAGE RATINGS PARAMETER Maximum DC reverse voltage Maximum working peak reverse voltage SYMBOL VR VRWM 18TQ035PBF 35 18TQ040PbF 40 18TQ045PbF 45 18TQ050PbF 50 UNITS V ABSOLUTE MAXIMUM RATINGS PARAMETER Maximum average forward current See fig. 5 Maximum peak one cycle non-repetitive surge current See fig. 7 Non-repetitive avalanche energy Repetitive avalanche current SYMBOL IF(AV) TEST CONDITIONS 50 % duty cycle at TC = 149 C, rectangular waveform 5 s sine or 3 s rect. pulse IFSM 10 ms sine or 6 ms rect. pulse EAS IAR Following any rated load condition and with rated VRRM applied VALUES 18 1800 390 24 3.6 mJ A A UNITS TJ = 25 C, IAS = 3.6 A, L = 3.7 mH Current decaying linearly to zero in 1 s Frequency limited by TJ maximum VA = 1.5 x VR typical * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 94149 Revision: 16-Apr-08 For technical questions, contact: diodes-tech@vishay.com www.vishay.com 1 18TQ...PbF Series Vishay High Power Products ELECTRICAL SPECIFICATIONS PARAMETER SYMBOL 18 A Maximum forward voltage drop See fig. 1 VFM (1) 36 A 18 A 36 A Maximum reverse leakage current See fig. 2 Maximum junction capacitance Typical series inductance Maximum voltage rate of change Note (1) Pulse width < 300 s, duty cycle < 2 % IRM (1) CT LS dV/dt TJ = 25 C TJ = 125 C TEST CONDITIONS TJ = 25 C VALUES 0.60 0.72 0.53 0.67 2.5 25 1400 8 10 000 mA pF nH V/s V UNITS Schottky Rectifier, 18 A TJ = 125 C VR = Rated VR VR = 5 VDC (test signal range 100 kHz to 1 MHz) 25 C Measured lead to lead 5 mm from package body Rated VR THERMAL - MECHANICAL SPECIFICATIONS PARAMETER Maximum junction and storage temperature range Maximum thermal resistance, junction to case Typical thermal resistance, case to heatsink Approximate weight minimum maximum Case style TO-220AC SYMBOL TJ, TStg RthJC RthCS DC operation See fig. 4 Mounting surface, smooth and greased TEST CONDITIONS VALUES - 55 to 175 1.50 C/W 0.50 2 0.07 6 (5) 12 (10) g oz. kgf * cm (lbf * in) UNITS C Mounting torque Marking device 18TQ050 www.vishay.com 2 For technical questions, contact: diodes-tech@vishay.com Document Number: 94149 Revision: 16-Apr-08 18TQ...PbF Series Schottky Rectifier, 18 A Vishay High Power Products 1000 1000 TJ = 175 C IF - Instantaneous Forward Current (A) IR - Reverse Current (mA) 100 10 1 0.1 0.01 0.001 TJ = 25 C 0.0001 TJ = 150 C TJ = 125 C TJ = 100 C TJ = 75 C TJ = 50 C 100 10 TJ = 175 C TJ = 125 C TJ = 25 C 1 0.1 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 0 5 10 15 20 25 30 35 40 45 VFM - Forward Voltage Drop (V) Fig. 1 - Maximum Forward Voltage Drop Characteristics VR - Reverse Voltage (V) Fig. 2 - Typical Values of Reverse Current vs. Reverse Voltage 10 000 CT - Junction Capacitance (pF) 1000 TJ = 25 C 100 0 10 20 30 40 50 VR - Reverse Voltage (V) Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage ZthJC - Thermal Impedance (C/W) 10 1 0.1 PDM 0.01 Single pulse (thermal resistance) 0.001 0.00001 D = 0.50 D = 0.33 D = 0.25 D = 0.17 D = 0.08 t1 t2 Notes: 1. Duty factor D = t1/t2 . 2. Peak TJ = PDM x ZthJC + TC 0.1 1 10 . 100 0.0001 0.001 0.01 t1 - Rectangular Pulse Duration (s) Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics Document Number: 94149 Revision: 16-Apr-08 For technical questions, contact: diodes-tech@vishay.com www.vishay.com 3 18TQ...PbF Series Vishay High Power Products 180 Schottky Rectifier, 18 A 15 Allowable Case Temperature (C) 175 170 165 Average Power Loss (W) 18TQ RthJC (DC) = 1.50 C/W 10 D = 0.08 D = 0.17 D = 0.25 D = 0.33 D = 0.50 RMS Limit DC 160 155 150 0 4 8 12 16 20 24 28 5 DC 0 0 4 8 12 16 20 24 28 IF(AV) - Average Forward Current (A) Fig. 5 - Maximum Allowable Case Temperature vs. Average Forward Current IF(AV) - Average Forward Current (A) Fig. 6 - Forward Power Loss Characteristics IFSM - Non-Repetitive Surge Current (A) 10 000 1000 At any rated load condition and with rated VRRM applied following surge 100 10 100 1000 10 000 tp - Square Wave Pulse Duration (s) Fig. 7 - Maximum Non-Repetitive Surge Current L High-speed switch Freewheel diode 40HFL40S02 + Vd = 25 V D.U.T. IRFP460 Rg = 25 Current monitor Fig. 8 - Unclamped Inductive Test Circuit www.vishay.com 4 For technical questions, contact: diodes-tech@vishay.com Document Number: 94149 Revision: 16-Apr-08 18TQ...PbF Series Schottky Rectifier, 18 A Vishay High Power Products ORDERING INFORMATION TABLE Device code 18 1 1 2 3 4 5 T 2 - Q 3 050 4 PbF 5 Current rating (18 = 18 A) Package: T = TO-220 Schottky "Q" series Voltage ratings None = Standard production PbF = Lead (Pb)-free 035 = 35 V 040 = 40 V 045 = 45 V 050 = 50 V Tube standard pack quantity: 50 pieces LINKS TO RELATED DOCUMENTS Dimensions Part marking information SPICE model http://www.vishay.com/doc?95221 http://www.vishay.com/doc?95224 http://www.vishay.com/doc?95280 Document Number: 94149 Revision: 16-Apr-08 For technical questions, contact: diodes-tech@vishay.com www.vishay.com 5 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1 |
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