parameter max. units v r d.c. reverse voltage 1200 v i f @ t c = 100c continuous forward current ? 28 i fsm @ t c = 25c single pulse forward current ? 190 p d @ t c = 25c maximum power dissipation 104 w t j operating junction and -55 to +150 c t stg storage temperature range ? reduced rfi and emi ? reduced snubbing ? extensive characterization of recovery parameters ? hermetic ? electrically isolated ? ceramic eyelets features description hexfred tm diodes are optimized to reduce losses and emi/rfi in high frequency power conditioning systems. an extensive characterization of the recovery behavior for different values of current, temperature and di/dt simplifies the calculations of losses in the operating conditions. the softness of the recovery eliminates the need for a snubber in most applications. these devices are ideally suited for power converters, motors drives and other applications where switching losses are significant portion of the total losses. ultrafast, soft recovery diode hexfred tm v r = 1200v v f = 3.0v q rr = 675nc a absolute maximum ratings (per leg) note: ? d.c. = 50% rect. wave ? 1/2 sine wave, 60 hz , p.w. = 8.33 ms thermal - mechanical characteristics parameter typ. max. units r q jc junction-to-case, single leg conducting 1.2 weight 10.9 g c/w hfa45hc120c (isolated base) 6/23/99 www.irf.com 1 anode common anode cathode to-258aa pd-20375a
hfa45hc120c 2 www.irf.com parameter min. typ. max. units test conditions v br cathode anode breakdown voltage 1200 v i r = 100a v fm max forward voltage 3.0 i f = 14a 3.9 v i f = 28a 2.7 i f = 14a, t j = 125c i rm max reverse leakage current 20 a v r = v r rated 2.0 ma t j = 125c, v r = 960v c t junction capacitance 40 pf v r = 200v l s series inductance 8.7 nh measured from center of bond pad to end of anode bonding wire electrical characteristics (per leg) @ t j = 25c (unless otherwise specified) dynamic recovery characteristics (per leg) @ t j = 25c case outline and dimensions to-258aa caution beryllia warning per mil- prf-19500 package containing beryllia shall not be ground, sandblasted,machined, or have other operations performed on them which will produce beryllia or beryllium dust. furthermore, beryllium oxide packages shall not be placed in acids that will produce fumes containing beryllium. parameter min. typ. max. units test conditions t rr reverse recovery time 135 ns i f = 14a, di/dt < 200a/us, v r = 200v i rrm max reverse recovery current 10 a i f = 14a, di/dt < 200a/us, v r = 200v q rr reverse recovered charge 675 nc i f = 14a, di/dt < 200a/us, v r = 200v conforms to jedec outline to-258aa dimensions in millimeters and (inches)
hfa45hc120c www.irf.com 3 4. q rr - area under curve defined by t rr and i rrm t rr x i rrm q rr = 2 fig. 2 - reverse recovery waveform and definitions fig.1 - reverse recovery parameter test circuit 1. di f /dt - rate of change of current through zero crossing 2. i rrm - peak reverse recovery current 3. trr - reverse recovery time measured from zero crossing point of negative going i f to point where a line passing through 0.75 i rrm and 0.50 i rrm extrapolated to zero current reverse recovery circuit irfp250 d.u.t. l = 70h v = 200v r 0.01 w g d s dif/dt adjust world headquarters: 233 kansas st., el segundo, california 90245, tel: (310) 322 3331 ir great britain: hurst green, oxted, surrey rh8 9bb, uk tel: ++ 44 1883 732020 ir canada: 15 lincoln court, brampton, ontario l6t3z2, tel: (905) 453 2200 ir germany: saalburgstrasse 157, 61350 bad homburg tel: ++ 49 6172 96590 ir italy: via liguria 49, 10071 borgaro, torino tel: ++ 39 11 451 0111 ir far east: k&h bldg., 2f, 30-4 nishi-ikebukuro 3-chome, toshima-ku, tokyo japan 171 tel: 81 3 3983 0086 ir southeast asia: 1 kim seng promenade, great world city west tower, 13-11, singapore 237994 tel: ++ 65 838 4630 ir taiwan: 16 fl. suite d. 207, sec. 2, tun haw south road, taipei, 10673, taiwan tel: 886-2-2377-9936 http://www.irf.com/ data and specifications subject to change without notice. 6/99 t a t b t rr q rr i f i rrm i rrm 0.5 di(rec)m/dt 0.75 i rrm 5 4 3 2 0 1 di /dt f
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