document number: 94150 for tec hnical questions, contact: diodestech@vishay.com www.vishay.com revision: 12-mar-10 1 schottky rectifier, 18 a vs-18tq035spbf, VS-18TQ040SPBF, vs-18tq045spbf vishay high power products features ? 175 c t j operation ? low forward voltage drop ? high frequency operation ? high purity, high temperature epoxy encapsulation for enhanced mechanical strength and mois ture resistance ? guard ring for enhanced ruggedness and long term reliability ? 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 description the vs-18tq... schottky rectifie r series has been optimized for low reverse leakage at high temperature. the proprietary barrier technology allows for reliable operation up to 175 c junction tempera ture. typical applications are in switching power supplies, converters, freewheeling diodes, and reverse battery protection. product summary i f(av) 18 a v r 35 v to 45 v d 2 pak anode 1 3 ba s e cathode 2 n/c major ratings and characteristics symbol characteristics values units i f(av) rectangular waveform 18 a v rrm range 35 to 45 v i fsm t p = 5 s sine 1800 a v f 18 apk, t j = 125 c 0.53 v t j range - 55 to 175 c voltage ratings parameter symbol vs-18tq035spbf v s-18tq040spbf vs-18tq045spbf units maximum dc reverse voltage v r 35 40 45 v maximum working peak reverse voltage v rwm absolute maximum ratings parameter symbol test conditions values units maximum average forward current see fig. 5 i f(av) 50 % duty cycle at t c = 149 c, rectangu lar waveform 18 a maximum peak one cycle non-repetitive surge current see fig. 7 i fsm 5 s sine or 3 s rect. pulse following any rated load condition and with rated v rrm applied 1800 a 10 ms sine or 6 ms rect. pulse 390 non-repetitive avalanche energy e as t j = 25 c, i as = 3.6 a, l = 3.7 mh 24 mj repetitive avalanche current i ar current decaying linea rly to zero in 1 s frequency limited by t j maximum v a = 1.5 x v r typical 3.6 a
www.vishay.com for technical questions, contact: diodestech@vishay.com document number: 94150 2 revision: 12-mar-10 vs-18tq035spbf, VS-18TQ040SPBF, vs-18tq045spbf vishay high power products schottky rectifier, 18 a note (1) pulse width < 300 s, duty cycle < 2 % electrical specifications parameter symbol test conditions values units maximum forward voltage drop see fig. 1 v fm (1) 18 a t j = 25 c 0.60 v 36 a 0.72 18 a t j = 125 c 0.53 36 a 0.67 maximum reverse leakage current see fig. 2 i rm (1) t j = 25 c v r = rated v r 2.5 ma t j = 125 c 25 maximum junction capacitance c t v r = 5 v dc (test signal range 100 khz to 1 mhz), 25 c 1400 pf typical series inductance l s measured lead to lead 5 mm from package body 8.0 nh maximum voltage rate of change dv/dt rated v r 10 000 v/s thermal - mechanical specifications parameter symbol test co nditions values units maximum junction and storage temperature range t j , t stg - 55 to 175 c maximum thermal resistance, junction to case r thjc dc operation see fig. 4 1.50 c/w typical thermal resistance, case to heatsink r thcs mounting surface, smooth and greased 0.50 approximate weight 2g 0.07 oz. mounting torque minimum 6 (5) kgf cm (lbf in) maximum 12 (10) marking device case style d 2 pak 18tq035s 18tq040s 18tq045s
document number: 94150 for tec hnical questions, contact: diodestech@vishay.com www.vishay.com revision: 12-mar-10 3 vs-18tq035spbf, VS-18TQ040SPBF, vs-18tq045spbf schottky rectifier, 18 a vishay high power products fig. 1 - maximum forward voltage drop characteristics fig. 2 - typical values of reverse current vs. reverse voltage fig. 3 - typical junction capacitance vs. reverse voltage fig. 4 - maximum thermal impedance z thjc characteristics 1 10 100 i f - instantaneous forward current (a) v fm - forward voltage drop (v) 0 0.4 0.8 1.2 1.4 1.6 1000 t j = 175 c t j = 125 c t j = 25 c 0.2 0.6 1.0 0.1 i r - reverse current (ma) v r - reverse voltage (v) 0 5 25 35 15 10 30 40 20 45 0.0001 0.001 0.01 0.1 1 10 100 1000 t j = 125 c t j = 175 c t j = 150 c t j = 100 c t j = 75 c t j = 50 c t j = 25 c c t - junction capacitance (pf) v r - reverse voltage (v) 01020 40 30 50 100 10 000 1000 t j = 25 c z thjc - thermal impedance (c/w) 0.001 0.01 0.1 1 10 t 1 - rectangular pulse duration (s) 0.00001 0.0001 0.001 0.01 0.1 1 10 100 d = 0.50 d = 0.33 d = 0.25 d = 0.17 d = 0.08 single pulse (thermal resistance) . . p dm t 1 t 2 notes: 1. duty factor d = t 1 /t 2 2. peak t j = p dm x z thjc + t c
www.vishay.com for technical questions, contact: diodestech@vishay.com document number: 94150 4 revision: 12-mar-10 vs-18tq035spbf, VS-18TQ040SPBF, vs-18tq045spbf vishay high power products schottky rectifier, 18 a fig. 5 - maximum allowable case temperature vs. average forward current fig. 6 - forward power loss characteristics fig. 7 - maximum non- repetitive surge current fig. 8 - unclamped in ductive test circuit allowable case temperature (c) i f(av) - average forward current (a) 028 12 150 155 160 170 180 41620 165 175 18tq r thjc (dc) = 1.50 c/w dc 824 0 15 average power loss (w) i f(av) - average forward current (a) 0 828 4 10 12 16 24 20 rms limit dc d = 0.08 d = 0.17 d = 0.25 d = 0.33 d = 0.50 5 i fsm - non-repetitive surge current (a) t p - square wave pulse duration (s) 100 1000 10 100 1000 10 000 at any rated load condition and with rated v applied following surge rrm 10 000 current monitor high-speed switch d.u.t. r g = 25 + freewheel diode v d = 25 v l irfp460 40hfl40s02
document number: 94150 for tec hnical questions, contact: diodestech@vishay.com www.vishay.com revision: 12-mar-10 5 vs-18tq035spbf, VS-18TQ040SPBF, vs-18tq045spbf schottky rectifier, 18 a vishay high power products ordering information table 035 = 35 v 040 = 40 v 045 = 45 v 2 - current rating (18 a) 3 - circuit configuration: t = to-220 4 - schottky ?q? series 5 - voltage ratings - s = d 2 pak 6 7 - none = tube (50 pieces) trl = tape and reel (left oriented) trr = tape and reel (right oriented) - pbf = lead (pb)-free 8 1 - hpp product suffix device code 5 1 3 24 678 vs- 18 t q 045 s trl pbf links to related documents dimensions www.vishay.com/doc?95014 part marking information www.vishay.com/doc?95008 packaging information www.vishay.com/doc?95032 spice model www.vishay.com/doc?95280
document number: 91000 www.vishay.com revision: 18-jul-08 1 disclaimer legal disclaimer notice vishay 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 fo r any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. vishay disclaims any and all li ability arising out of the use or application of any product describ ed herein or of any information provided herein to the maximum extent permit ted by law. the product specifications do not expand or otherwise modify vishay?s terms and conditions of purcha se, 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 medi cal, 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.
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