? semiconductor components industries, llc, 2000 october, 2000 rev. 2 1 publication order number: mbr735/d mbr735, mbr745 mbr745 is a preferred device switchmode ? power rectifiers . . . using the schottky barrier principle with a platinum barrier metal. these stateoftheart devices have the following features: ? guardring for stress protection ? low forward voltage ? 150 c operating junction temperature ? epoxy meets ul94, vo at 1/8 mechanical characteristics: ? case: epoxy, molded ? weight: 1.9 grams (approximately) ? finish: all external surfaces corrosion resistant and terminal leads are readily solderable ? lead temperature for soldering purposes: 260 c max. for 10 seconds ? shipped 50 units per plastic tube ? marking: b735, b745 maximum ratings rating symbol value unit peak repetitive reverse voltage working peak reverse voltage dc blocking voltage mbr735 mbr745 v rrm v rwm v r 35 45 v average rectified forward current (rated v r , t c = 105 c) i f(av) 7.5 a peak repetitive forward current, (rated v r , square wave, 20 khz, t c = 105 c) i frm 15 a nonrepetitive peak surge current (surge applied at rated load conditions halfwave, single phase, 60 hz) i fsm 150 a peak repetitive reverse surge current (2.0 s, 1.0 khz) i rrm 1.0 a storage temperature range t stg 65 to +175 c operating junction temperature t j 65 to +150 c voltage rate of change (rated v r ) dv/dt 10,000 v/ s device package shipping ordering information mbr735 to220 http://onsemi.com to220ac case 221b plastic 50 units/rail 3 4 1 schottky barrier rectifiers 7.5 amperes 35 and 45 volts mbr745 to220 50 units/rail preferred devices are recommended choices for future use and best overall value. 3 1, 4 marking diagram b7x5 b7x5 = device code x = 3 or 4
mbr735, mbr745 http://onsemi.com 2 thermal characteristics characteristic symbol value unit maximum thermal resistance, junction to case r q jc 3.0 c/w maximum thermal resistance, junction to ambient r q ja 60 c/w electrical characteristics maximum instantaneous forward voltage (note 1.) (i f = 7.5 amps, t c = 125 c) (i f = 15 amps, t c = 125 c) (i f = 15 amps, t c = 25 c) v f 0.57 0.72 0.84 volts maximum instantaneous reverse current (note 1.) (rated dc voltage, t c = 125 c) (rated dc voltage, t c = 25 c) i r 15 0.1 ma 1. pulse test: pulse width = 300 m s, duty cycle 2.0%. figure 1. typical forward voltage figure 2. typical reverse current 0.6 0.2 i f , instantaneous forward voltage (volts) 50 30 20 10 v r , reverse voltage (volts) 0 0.001 i f , instantaneous forward current (amps ) i 7.0 5.0 1.0 1.2 0.4 0.8 10 20 30 40 0.1 1.0 0.7 0.5 1.0 50 , reverse current (ma) r 10 100 t j = 125 c 75 c 25 c t j = 150 c 125 c 100 c 0.01 25 c 75 c 3.0 2.0
mbr735, mbr745 http://onsemi.com 3 figure 3. current derating, case figure 4. current derating, ambient figure 5. power dissipation 100 t c , case temperature ( c) 5.0 2.0 1.0 0 t a , ambient temperature ( c) 20 0 8.0 6.0 4.0 2.0 0 40 4.0 8.0 0 i f(av) , average forward current (amps) 4.0 3.0 2.0 1.0 0 6.0 i i f(av) , average forward current (amps) 120 130 140 150 60 80 160 p 10 20 12 7.0 , average forward current (amps) f(av) 2.0 14 16 18 5.0 6.0 180 square wave dc 180 square wave dc 4.0 3.0 6.0 8.0 7.0 7.0 5.0 3.0 1.0 100 120 140 , average forward power f(av) rated voltage applied dc rated voltage applied r jc = 3.0 c/w r ja = 16 c/w r ja = 60 c/w (no heat sink) dc 110 dissipation (watts) 180 180
mbr735, mbr745 http://onsemi.com 4 package dimensions to220 plastic case 221b04 issue d b r j d g l h q t u a k c s 4 13 dim min max min max millimeters inches a 0.595 0.620 15.11 15.75 b 0.380 0.405 9.65 10.29 c 0.160 0.190 4.06 4.82 d 0.025 0.035 0.64 0.89 f 0.142 0.147 3.61 3.73 g 0.190 0.210 4.83 5.33 h 0.110 0.130 2.79 3.30 j 0.018 0.025 0.46 0.64 k 0.500 0.562 12.70 14.27 l 0.045 0.060 1.14 1.52 q 0.100 0.120 2.54 3.04 r 0.080 0.110 2.04 2.79 s 0.045 0.055 1.14 1.39 t 0.235 0.255 5.97 6.48 u 0.000 0.050 0.000 1.27 notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. f on semiconductor and are trademarks of semiconductor components industries, llc (scillc). scillc reserves the right to make changes without further notice to any products herein. scillc makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does scillc assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. atypicalo parameters which may be provided in scill c data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. all operating parameters, including atypicalso must be validated for each customer application by customer's technical experts. scillc does not convey any license under its patent rights nor the rights of others. scillc products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body , or other applications intended to support or sustain life, or for any other application in which the failure of the scillc product could create a sit uation where personal injury or death may occur. should buyer purchase or use scillc products for any such unintended or unauthorized application, buyer shall indemnify and hold scillc and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthori zed use, even if such claim alleges that scillc was negligent regarding the design or manufacture of the part. scillc is an equal opportunity/affirmative action employer. publication ordering information central/south america: spanish phone : 3033087143 (monfri 8:00am to 5:00pm mst) email : onlitspanish@hibbertco.com tollfree from mexico: dial 018002882872 for access then dial 8662979322 asia/pacific : ldc for on semiconductor asia support phone : 3036752121 (tuefri 9:00am to 1:00pm, hong kong time) toll free from hong kong & singapore: 00180044223781 email : onlitasia@hibbertco.com japan : on semiconductor, japan customer focus center 4321 nishigotanda, shinagawaku, tokyo, japan 1410031 phone : 81357402700 email : r14525@onsemi.com on semiconductor website : http://onsemi.com for additional information, please contact your local sales representative. mbr735/d switchmode is a trademark of semiconductor components industries, llc. north america literature fulfillment : literature distribution center for on semiconductor p.o. box 5163, denver, colorado 80217 usa phone : 3036752175 or 8003443860 toll free usa/canada fax : 3036752176 or 8003443867 toll free usa/canada email : onlit@hibbertco.com fax response line: 3036752167 or 8003443810 toll free usa/canada n. american technical support : 8002829855 toll free usa/canada europe: ldc for on semiconductor european support german phone : (+1) 3033087140 (monfri 2:30pm to 7:00pm cet) email : onlitgerman@hibbertco.com french phone : (+1) 3033087141 (monfri 2:00pm to 7:00pm cet) email : onlitfrench@hibbertco.com english phone : (+1) 3033087142 (monfri 12:00pm to 5:00pm gmt) email : onlit@hibbertco.com european tollfree access*: 0080044223781 *available from germany, france, italy, uk, ireland
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