pd-2.508 rev. a 12/98 ? reduced rfi and emi ? reduced snubbing ? extensive characterization of recovery parameters 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 HFA120MD40D v r = 400v v f (typ.) ? = 0.9v i f(av) = 120a q rr (typ.) = 420nc i rrm (typ.) = 9.3a t rr (typ.) = 36ns di (rec)m /dt (typ.) ? = 260a/s anode ac cathode 1 2 isolated base parameter min. typ. max. units r thjc junction-to-case, single leg conducting ???? ???? 0.70 junction-to-case, both legs conducting ???? ???? 0.35 r thcs case-to-sink, flat , greased surface ???? 0.10 ???? wt weight ???? 79 (2.8) ???? g (oz) mounting torque ? 30 (3.4) ???? 40 (4.6) terminal torque 30 (3.4) ???? 40 (4.6) vertical pull ???? ???? 80 2 inch lever pull ???? ???? 35 parameter max. units v r cathode-to-anode voltage 400 v i f @ t c = 25c continuous forward current 111 i f @ t c = 100c continuous forward current 53 i fsm single pulse forward current ? 600 e as non-repetitive avalanche energy ? 1.4 mj p d @ t c = 25c maximum power dissipation 179 p d @ t c = 100c maximum power dissipation 71 t j operating junction and t stg storage temperature range note: ? limited by junction temperature ? mounting surface must be smooth, flat, free or burrs or other ? l = 100h, duty cycle limited by max t j protrusions. apply a thin even film or thermal grease to mounting ? 125c surface. gradually tighten each mounting bolt in 5-10 lbf?in steps until desired or maximum torque limits are reached. module absolute maximum ratings (per leg) c/w k/w -55 to +150 w a c thermal - mechanical characteristics lbf?in (n?m) lbf?in 1 to-244ab (isolated)
HFA120MD40D pd-2.508 rev. a 12/98 2 14.99 (0.590) 92.71 (3.650) 90.17 (3.550) 3.02 (0.119) 3.35 (0.132) (2 plcs.) 20.42 (0.804) 23.55 (0.927) 6.99 (0.275) 7.49 (0.295) dia. 34.925 (1.375) 60.96 (2.400) 63.50 (2.500) ref. 80.01 (3.150) 40.26 (1.585) 39.75 (1.565) 15.75 (0.620) 1/4-20 slotted hex 17.78 (0.700) 20.32 (0.800) 123 outline to-244ab (isolated) dimensions in millimeters and (inches) lead assignments 1 - anode 2 - cathode 3 - anode parameter min. typ. max. units test conditions t rr reverse recovery time ??? 36 ??? i f = 1.0a, di f /dt = 200a/s, v r = 30v t rr1 ??? 90 140 ns t j = 25c see t rr2 ??? 160 240 t j = 125c fig. 5 i f = 80a i rrm1 peak recovery current ??? 9.3 17 t j = 25c see i rrm2 ??? 15 30 t j = 125c fig. 6 v r = 200v q rr1 reverse recovery charge ??? 420 1100 t j = 25c see q rr2 ??? 1200 3200 t j = 125c fig. 7 di f /dt = 200a/s di (rec)m /dt1 peak rate of fall of recovery current ??? 360 ??? t j = 25c see di (rec)m /dt2 during t b ??? 260 ??? t j = 125c fig. 8 parameter min. typ. max. units test conditions v br cathode anode breakdown voltage 400 ??? ??? v i r = 100a v fm max forward voltage ??? 1.0 1.2 i f = 60a ??? 1.2 1.4 v i f = 120a ??? 0.90 1.1 i f = 60a, t j = 125c i rm max reverse leakage current ??? 1.0 6.0 a v r = v r rated ??? 1.5 8.0 ma t j = 125c, v r = 320v c t junction capacitance ??? 180 260 pf v r = 200v from top of terminal hole to mounting plane electrical characteristics (per leg) @ t j = 25c (unless otherwise specified) a/s nc a l s series inductance ??? 7.0 ??? nh see fig. 3 see fig. 2 see fig. 1 dynamic recovery characteristics (per leg) @ t j = 25c (unless otherwise specified)
HFA120MD40D pd-2.508 rev. a 12/98 3 fig. 4 - maximum thermal impedance z thjc characteristics, (per leg) fig. 2 - typical reverse current vs. reverse voltage, (per leg) fig. 3 - typical junction capacitance vs. reverse voltage, (per leg) fig. 1 - maximum forward voltage drop vs. instantaneous forward current, (per leg) 0.1 1 10 100 1000 10000 0 100 200 300 400 r r reverse voltage - v (v) t = 150 c reverse current - i ( a) t = 125 c t = 25c j j j 100 1000 10000 1 10 100 1000 t = 25 c j reverse voltage - v (v) r t junction capacitance - c (pf) a 0.001 0.01 0.1 1 0.00001 0.0001 0.001 0.01 0.1 1 10 100 1 thj c t , rectangular pulse duration (seconds) d = 0.50 d = 0.33 d = 0.25 d = 0.17 d = 0.08 single pulse (thermal resistance) thermal impedance - z (k/w) 2 t 1 t p dm notes: 1. duty factor d = t / t 2. peak t = p x z + t jdm thjc c 2 1 1 10 100 1000 0.4 0.8 1.2 1.6 2.0 fm f instantaneous forward current - i (a) forward voltage drop - v (v) t = 150 c t = 125c t = 25c j j j
HFA120MD40D pd-2.508 rev. a 12/98 4 fig. 7 - typical stored charge vs. di f /dt, (per leg) fig. 8 - typical di (rec)m /dt vs. di f /dt, (per leg) fig. 5 - typical reverse recovery vs. di f /dt, (per leg) fig. 6 - typical recovery current vs. di f /dt, (per leg) 40 80 120 160 200 240 100 1000 f di /dt - (a/ s) t - (ns) rr i = 200a i = 80a i = 40a f f f v = 200v t = 12 5 c t = 25c r j j 1 10 100 100 1000 f di /dt - (a/ s) i - (a) irrm i = 200a i = 80a i = 40a f f f v = 200v t = 125 c t = 25c r j j 100 1000 10000 100 1000 f di /dt - (a/ s) di(rec)m/dt - (a/ s) i = 200a i = 80a i = 40a v = 200v t = 125 c t = 25c r j j f f f 0 1000 2000 3000 4000 5000 100 1000 f di /dt - (a/ s) rr q - (nc) i = 40a i = 80a i = 200a v = 200v t = 125 c t = 25c r j j f f f
HFA120MD40D pd-2.508 rev. a 12/98 5 4. q rr - area under curve defined by t rr and i rrm t rr x i rrm q rr = 2 5. di (rec)m /dt - peak rate of change of current during t b portion of t rr v (aval) r(r at ed) i l(pk) v de cay time fig. 11 - avalanche test circuit and waveforms fig. 10 - reverse recovery waveform and definitions fig. 9 - reverse recovery parameter test circuit 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 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 = 70 h v = 200v r 0.01 w g d s dif/dt adjust current monitor high-speed switch dut rg = 25 ohm + free-wheel diode vd = 50v l = 100 h http://www.irf.com fax-on-demand: +44 1883 733420 data and specifications subject to change wit hout notice. 233 kansas st., el segundo, california 90245 u.s.a. tel: (310) 322 3331. fax: (310) 322 3332. hurst green, oxted, surrey rh8 9bb, u.k. tel: ++ 44 1883 732020. fax: ++ 44 1883 733408. 15 lincoln court, brampton, markham, ontario l6t3z2. tel: (905) 453 2200. fax: (905) 475 8801. saalburgstrasse 157, 61350 bad homburg. tel: ++ 49 6172 96590. fax: ++ 49 6172 965933. via liguria 49, 10071 borgaro, torino. tel: ++ 39 11 4510111. fax: ++ 39 11 4510220. k&h bldg., 2f, 30-4 nishi-ikebukuro 3-chome, toshima-ku, tokyo, japan 171. tel: 81 3 3983 0086. 1 kim seng promenade, great world city west tower,13-11, singapore 237994. tel: ++ 65 838 4630. 16 fl. suite d.207, sec. 2, tun haw south road, taipei, 10673, taiwan. tel: 886 2 2377 9936. world headquarters: european headquarters: ir canada: ir germany: ir italy: ir far east: ir southeast asia: ir taiwan:
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