www.kersemi.com 1 MBR4045CT features ? 150 c t j operation ? center tap to-220, d 2 pak and to-262 packages ? 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 this center tap schottky rectifier has been optimized for low reverse leakage at high temperat ure. 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 to-220ab anode 13 2 base common cathode 2 common cathode anode major ratings and characteristics symbol characteristics values units i f(av) rectangular waveform (per device) 40 a v rrm 45 v i frm t c = 118 c (per leg) 40 a i fsm t p = 5 s sine 900 v f 20 apk, t j = 125 c 0.58 v t j range - 65 to 150 c voltage ratings parameter symbol MBR4045CT 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 c ycle non-repetitive 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 aval anche energy per leg e as t j = 25 c, i as = 3 a, l = 4.40 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.kersemi.com 2 MBR4045CT 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 instantaneus 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 terminal 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 st yle to-220ab MBR4045CT
www.keremi.com 3 MBR4045CT 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 capacit ance vs. reverse voltage (per leg) fig. 4 - maximum thermal impedance z thjc characteristics (per leg) 1 10 2.0 0.4 v fm - forward voltage drop (v) i f - instantaneous forward current (a) 100 0 0.2 0.6 0. 8 1.0 1.2 1.4 1.6 1. 8 t j = 150 c t j = 125 c t j = 25 c 1000 0.1 1 10 100 0.01 0.001 0 v r - reverse voltage (v) i r - reverse current (ma) 15 35 45 25 510 20 30 40 1000 t j = 150 c t j = 125 c t j = 100 c t j = 75 c t j = 50 c t j = 25 c 900 020 50 200 v r - reverse voltage (v) c t - junction capacitance (pf) 10 30 40 t j = 25 c 300 400 500 600 700 8 00 0.001 0.1 1 10 0.00001 0.0001 0.001 0.01 0.1 t 1 - rectangular pulse duration (s) z thjc - thermal impedance (c/w) 1 10 0.01 single p u lse (thermal resistance) d = 0.75 d = 0.50 d = 0.33 d = 0.25 d = 0.20 . p dm t 1 t 2 n otes: 1. d u ty factor d = t 1 /t 2 2. peak t j = p dm x z thjc + t c
www.kersemi.com 4 MBR4045CT fig. 5 - maximum allowable case temperature vs. average forward current fig. 6 - forward powe r loss characteristics fig. 7 - maximum non-repetit ive 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 8 0 030 i f(av) - average forward current (a) allowable case temperature (c) 120 160 100 20 15 10 5 25 s qu are w a v e (d = 0.50) rated v r applied see note (1) dc 140 0 035 average power loss (w) i f(av) - average forward current (a) 5101520 8 20 25 2 4 6 12 10 d = 0.75 d = 0.50 d = 0.33 d = 0.25 d = 0.20 dc rms limit 30 14 16 1 8 1000 100 1000 t p - square wave pulse duration (s) i fsm - non-repetitive surge current (a) 100 10 000 10 at any rated load condition and w ith rated v rrm applied follo w ing s u rge
www.kersemi.com 5 MBR4045CT 1 - schottky mbr series 2 - current rating (40 = 40 a) 3 - voltage rating (45 = 45 v) 4 - ct = essential part number 5 - none = standard production pbf = lead (pb)-free device code 5 13 24 mbr 40 45 ct - links to related documents dimensions http://www.vishay.com/doc?95222 part marking information http://www.vishay.com/doc?95225 spice model http://www.vishay.com/doc?95296
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