? ? frd type : KCF25A20 KCF25A20 KCF25A20 KCF25A20 outline drawing maximum ratings approx net weight:5.55g rating symbol KCF25A20 unit repetitive peak reverse voltage v rrm 200 v non-repetitive peak reverse voltage v rsm 220 v average rectified output current i o 25 tc=93 c 50 hz,full sine wave resistive load a rms forward current i f(rms) 28 a surge forward current i fsm 150 50 hz full sine wave,1cycle non-repetitive a operating junctiontemperature range tjw - 40 to + 150 c storage temperature range tstg - 40 to + 150 c mounting torque 0.5 recommended value n k m electrical ? thermal characteristics characteristics symbol conditions min. typ. max. unit peak reverse current i rm tj=25 c,v rm =v rrm per arm - - 25 a peak forward voltage v fm tj=25 c, i fm =12.5a per arm - - 0.98 v reverse recovery time trr i fm =10 a, -di/dt= 50 a/ s, ta= 25 c - - 50 ns thermal resistance rth(j-c) junction to case - - 2 c/w features * similar to to-247ac (to-3p) case * dual diodes ? cathode common * ultra ? fast recovery * low forward voltage drop * high surge capability * 200 volts thru 400 volts types available
? ? KCF25A20 outline drawing (dimensions in mm)
forward current vs. voltage KCF25A20 (per arm) 0 0.4 0.8 1.2 1.6 2.0 2.4 instantaneous forward voltage (v) 1 2 5 10 20 50 100 200 instantaneous forward current (a) tj=25c tj=150c average forward power dissipation 0 5 10 15 20 25 30 average forward current (a) 0 5 10 15 20 25 30 average forward power dissipation (w) KCF25A20 (total) 0 180 q conduction angle sine wave rect 180
average forward current vs. case temperature KCF25A20 (total) 0 25 50 75 100 125 150 case temperature (c) 0 5 10 15 20 25 30 average forward current (a) 0 180 q conduction angle sine wave rect 180 surge current ratings KCF25A20 f=50hz,sine wave,non-repetitive,no load 0.02 0.05 0.1 0.2 0.5 1 2 time (s) 0 20 40 60 80 100 120 140 160 surge forward current (a) 0.02s i fsm
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