document number: 94311 for technical questions, contact: diodestech@vishay.com www.vishay.com revision: 16-mar-10 1 schottky rectifier, 2 x 20 a vs-mbrb4045ctpbf, vs-mbr4045ct-1pbf vishay high power products features ? 150 c t j operation ? low forward voltage drop ? high frequency operation ? center tap to-220, d 2 pak and to-262 packages ? high purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture 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 center tap schottky rectifie r has been optimized for low reverse leakage at high temperature. 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. product summary i f(av) 2 x 20 a v r 45 v i rm 95 ma at 125 c v s -mbrb4045ctp b f d 2 pak to-262 v s -mbr4045ct-1p b f ba s e common cathode anode anode common cathode 1 3 2 2 ba s e common cathode anode anode common cathode 1 3 2 2 major ratings and characteristics symbol characteristics values units i f(av) rectangular waveform (per device) 40 a i frm t c = 118 c (per leg) 40 v rrm 45 v i fsm t p = 5 s sine 900 a v f 20 apk, t j = 125 c 0.58 v t j range - 65 to 150 c voltage ratings parameter symbol vs-mbrb4045ctpbf vs-mbr4045ct-1pbf units maximum dc reverse voltage v r 45 v maximum working peak reverse voltage v rwm absolute maximum ratings parameter symbol test conditions values units maximum average forward current per leg i f(av) t c = 118 c, rated v r 20 a per device 40 peak repetitive forward current per leg i frm rated v r , square wave, 20 khz, t c = 118 c 40 maximum peak one cycle non-repetitive peak surge current per leg i fsm 5 s sine or 3 s rect. pulse following any rated load condition and with rated v rrm applied 900 10 ms sine or 6 ms rect. pulse 210 non-repetitive avalanche energy per leg e as t j = 25 c, i as = 3 a, l = 4.4 mh 20 mj repetitive avalanche current per leg i ar current decaying linearly to zero in 1 s frequency limited by t j maximum v a = 1.5 x v r typical 3a
www.vishay.com for technical questions, contact: diodestech@vishay.com document number: 94311 2 revision: 16-mar-10 vs-mbrb4045ctpbf, vs-mbr4045ct-1pbf vishay high power products schottky rectifier, 2 x 20 a note (1) pulse width < 300 s, duty cycle < 2 % electrical specifications parameter symbol test conditions values units maximum forward voltage drop v fm (1) 20 a t j = 25 c 0.60 v 40 a 0.78 20 a t j = 125 c 0.58 40 a 0.75 maximum instantaneous reverse current i rm (1) t j = 25 c rated dc voltage 1 ma t j = 100 c 50 t j = 125 c 95 maximum junction capacitance c t v r = 5 v dc (test signal range 100 khz to 1 mhz), 25 c 900 pf typical series inductance l s measured from top of term inal to mounting plane 8.0 nh maximum voltage rate of change dv/dt rated v r 10 000 v/s thermal - mechanical specifications parameter symbol test conditions values units maximum junction temperature range t j - 65 to 150 c maximum storage temperature range t stg - 65 to 175 maximum thermal resistance, junction to case per leg r thjc dc operation 1.5 c/w typical thermal resistance, case to heatsink r thcs mounting surface, smooth and greased (only for to-220) 0.50 maximum thermal resistance, junction to ambient r thja dc operation (for d 2 pak and to-262) 50 approximate weight 2g 0.07 oz. mounting torque minimum non-lubricated threads 6 (5) kgf cm (lbf in) maximum 12 (10) marking device case style d 2 pak mbrb4045ct case style to-262 mbr4045ct-1
document number: 94311 for technical questions, contact: diodestech@vishay.com www.vishay.com revision: 16-mar-10 3 vs-mbrb4045ctpbf, vs-mbr4045ct-1pbf schottky rectifier, 2 x 20 a vishay high power products fig. 1 - maximum forward voltage drop characteristics (per leg) fig. 2 - typical values of reverse current vs. reverse voltage (per leg) fig. 3 - typical junction capacitance vs. reverse voltage (per leg) fig. 4 - maximum thermal impedance z thjc characteristics (per leg) 1 100 10 1000 i f - instantaneous forward current (a) v fm - forward voltage drop (v) 0.2 0.4 0.8 1.4 1.8 2.0 0.6 1.2 1.0 1.6 0 t j = 150 c t j = 125 c t j = 25 c 0.001 1 10 100 0.1 0.01 1000 i r - reverse current (ma) v r - reverse voltage (v) 10 51520 40 45 25 30 35 0 t j = 150 c t j = 125 c t j = 100 c t j = 75 c t j = 50 c t j = 25 c 200 300 600 400 700 800 900 500 c t - junction capacitance (pf) v r - reverse voltage (v) 10 20 40 30 0 50 t j = 25 c 0.01 0.1 1 10 0.00001 0.0001 0.001 0.01 0.1 1 t 1 - rectangular pulse duration (s) z thjc - thermal impedance (c/w) 10 single pulse (thermal resistance) d = 0.75 d = 0.50 d = 0.33 d = 0.25 d = 0.20 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 0.001
www.vishay.com for technical questions, contact: diodestech@vishay.com document number: 94311 4 revision: 16-mar-10 vs-mbrb4045ctpbf, vs-mbr4045ct-1pbf vishay high power products schottky rectifier, 2 x 20 a fig. 5 - maximum allowable case temperature vs. average forward current fig. 6 - forward power loss characteristics fig. 7 - maximum non-repeti tive surge current (per leg) note (1) formula used: t c = t j - (pd + pd rev ) x r thjc ; pd = forward power loss = i f(av) x v fm at (i f(av) /d) (see fig. 6); pd rev = inverse power loss = v r1 x i r (1 - d); i r at v r1 = rated v r 80 100 120 140 160 allowable case temperature (c) i f ( av ) - average forward current (a) 10 5 15 20 30 25 0 dc see note (1) square wave (d = 0.50) rated v r applied 0 2 10 16 18 14 12 6 4 8 20 average power loss (w) i f(av) - average forward current (a) 10 51520 35 25 30 0 dc rms limit d = 0.75 d = 0.50 d = 0.33 d = 0.25 d = 0.20 100 1000 i fsm - non-repetitive surge current (a) t p - square wave pulse duration (s) 100 1000 10 000 10 at any rated load condition and w ith rated v rrm applied follo w ing s u rge
document number: 94311 for technical questions, contact: diodestech@vishay.com www.vishay.com revision: 16-mar-10 5 vs-mbrb4045ctpbf, vs-mbr4045ct-1pbf schottky rectifier, 2 x 20 a vishay high power products ordering information table 2 - essential part number 3 - 4 - current rating (40 = 40 a) 5 - 8 - none = tube (50 pieces) trl = tape and reel (left oriented - for d 2 pak only) voltage rating (45 = 45 v) pbf = lead (pb)-free (for to-262 and d 2 pak tube) 7 - none = d 2 pak -1 = to-262 b = d 2 pak none = to-262 7 7 none = -1 6 - ct = essential part number 3 = b 3 none trr = tape and reel (right oriented - for d 2 pak only) 9 - p = lead (pb)-free (for d 2 pak trr and trl) 1 - hpp prod u ct s u ffix device code 5 1 3 24 6789 vs- mbr b 40 45 ct -1 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?95296
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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