rohs compliant *pulse test: pulse width 300sec, duty cycle 2% thermal and mechanical characteristics electrical characteristics j 1900 pf rm 2 ma f(av) 60 amps fm 0.65 volts fm 0.46 volts f(av) 30 amps r(ov) 2 amps fsm 800 amps rm 45 ma schottky minimod fst6435 - fst6450 *add the suffix a for common anode, d for doubler 0jc max thermal resistance per leg typical thermal resistance (greased) mounting base torque weight max thermal resistance per pkg 0jc 0cs r r operating junction temp range typical junction capacitance per leg max reverse current per leg max peak forward voltage per leg max peak forward voltage per leg max repetitive peak reverse current per leg maximum surge current per leg average forward current per leg average forward current per pkg max peak reverse current per leg storage temp range stg j t r t c i v v i i i i i fst6435* fst6440* fst6445* microsemi catalog number working peak reverse voltage 45v 40v 35v 1.0c/w 10 inch pounds maximum 0.3 ounce (8.4 grams) typical case to sink junction to case 0.5c/w 0.3c/w r = 5.0v, c = 25c rrm, j = 25c junction to case t fm = 30a: j = 25c* fm = 30a: j = 175c* rrm, j = 125c* f = 1 khz, 25c, 1sec square wave 8.3 ms, half sine, j = 175c -55c to 175c -55c to 175c v v t i v i t t t t t t r r peak reverse repetitive voltage 45v 40v 35v d=doubler a=common anode common cathode 3 pins eq sp at .200 n 2-plcs. note: baseplate common with pin 2 c k g m h l j 1 2 1 2 p a 1 2 f 3 e 1 2 dia. notes 9.40 8.89 .350 e .370 1.510 .715 .098 .260 .135 .480 .161 .025 .046 3 n p m l 3 h j k g f .151 .015 .460 .034 .088 .240 .115 1.490 .695 3.84 0.38 11.68 0.86 2.24 6.10 2.92 37.85 17.65 12.19 4.09 0.64 1.17 38.35 18.16 2.49 6.60 3.43 maximum 1.195 .035 dim. inches 3 c a minimum 1.180 .025 millimeter minimum 29.97 0.64 maximum 30.35 0.89 part number 61CNQ035 61cnq040 61cnq045 industry fst6450* 50v 50v reverse energy tested rrm schottky barrier rectifier guard ring protection v - 35 to 50 volts 2x30 amperes avg. 175c junction temperature c = 156c, square wave, 0jc = 1.0c/w c = 156c, square wave, 0jc = 0.5c/w january, 2010 - rev. 3 www.microsemi.com
fst6435 - fst6450 instantaneous forward current - amperes typical reverse current - mamperes reverse voltage - volts 0 25 c 75 c .01 0.1 10 20 40 30 50 instantaneous forward voltage - volts typical reverse characteristics - per leg 100 125 c 10 1.0 175 c 1000 figure 2 0 1.0 0.2 2.0 4.0 0.4 0.6 0.8 1.0 1.2 1.4 600 25 c 60 150 c 8.0 6.0 10 20 40 200 100 80 400 typical forward characteristics - per leg figure 1 1000 800 maximum allowable case temperature - c 50 50 90 maximum power dissipation - watts average forward current - amperes 0 5.0 0 10 10 5.0 15 35 20 25 30 40 45 average forward current - amperes maximum forward power dissipation - per leg 20 15 25 figure 5 30 35 120 0 110 130 140 150 10 0.5 15 90 120 180 dc 35 20 25 120 30 180 40 45 100 forward current derating - per leg reverse voltage - volts 160 170 180 figure 4 0.1 0.5 1.0 600 junction capacitance - pf 200 100 400 4000 2000 1000 10 5.0 dc 50 typical junction capacitance - per leg figure 3 10000 6000 january, 2010 - rev. 3 www.microsemi.com
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