1 case styles mur820 to-220ac murb820 d 2 pak MURB820-1 to-262 v rrm peak repetitive peak reverse voltage 200 v i f(av) average rectified forward current 8 a total device, (rated v r ), t c = 150c i fsm non repetitive peak surge current 100 i fm peak repetitive forward current 16 (rated v r , square wave, 20 khz), t c = 150c t j , t stg operating junction and storage temperatures -65 to 175 c parameters max units mur820 murb820 MURB820-1 bulletin pd-20731 rev. b 01/01 t rr = 25ns i f(av) = 8amp v r = 200v ? ultrafast recovery time ? low forward voltage drop ? low leakage current ? 175c operating junction temperature features description/ applications international rectifier's mur.. series are the state of the art ultra fast recovery rectifiers specifically designed with optimized performance of forward voltage drop and ultra fast recovery time. the planar structure and the platinum doped life time control, guarantee the best overall performance, ruggedness and reliability characteristics. these devices are intended for use in the output rectification stage of smps, ups, dc-dc converters as well as free- wheeling diode in low voltage inverters and chopper motor drives. their extremely optimized stored charge and low recovery current minimize the switching losses and reduce over dissipation in the switching element and snubbers. absolute maximum ratings ultrafast rectifier www.irf.com
mur820, murb820, MURB820-1 bulletin pd-20731 rev. c 12/03 2 www.irf.com v br , v r breakdown voltage, 200 - - v i r = 100a blocking voltage v f forward voltage - - 0.975 v i f = 8a - - 0.895 v i f = 8a, t j = 150c i r reverse leakage current - - 5 a v r = v r rated - - 250 a t j = 150c, v r = v r rated c t junction capacitance - 25 - pf v r = 200v l s series inductance - 8.0 - nh . electrical characteristics @ t j = 25c (unless otherwise specified) parameters min typ max units test conditions measured lead to lead 5mm from package body t rr reverse recovery time -- 35 ns i f = 1.0a, di f /dt = 50a/s, v r = 30v --25 i f = 0.5a, i r = 1.0a, i rec = 0.25a -20- t j = 25c 34 t j = 125c i rrm peak recovery current - 1.7 - a t j = 25c - 4.2 - t j = 125c q rr reverse recovery charge - 23 - nc t j = 25c -75- t j = 125c dynamic recovery characteristics @ t j = 25c (unless otherwise specified) i f = 8a v r = 160v di f /dt = 200a/s parameters min typ max units test conditions parameters min typ max units t j max. junction temperature range - - - 65 to 175 c t stg max. storage temperature range - - - 65 to 175 r thjc thermal resistance, junction to case - - 3.0 c/ w r thja thermal resistance, junction to ambient - - 50 r thcs thermal resistance, case to heatsink - 0.5 - wt weight - 2.0 - g - 0.07 - (oz) mounting torque 6.0 - 12 kg-cm 5.0 - 10 lbf.in thermal - mechanical characteristics c mounting surface, flat, smooth and greased c
bulletin pd-20731 rev. c 12/03 3 mur820, murb820, MURB820-1 www.irf.com fig. 2 - typical values of reverse current vs. reverse voltage fig. 1 - typical forward voltage drop characteristics reverse voltage - v r (v) fig. 3 - typical junction capacitance vs. reverse voltage 0.1 1 10 100 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 t = 175 ? c t = 150 ? c t = 25 ? c j j j 0.001 0.01 0.1 1 10 100 0 50 100 150 200 250 150 ? c 125 ? c 100 ? c 25 ? c t = 175 ? c j 10 100 1000 1 10 100 1000 t = 25 ? c j forward voltage drop - v fm (v) instantaneous forward current - i f (a) reverse voltage - v r (v) junction capacitance - c t (pf) fig. 4 - max. thermal impedance z thjc characteristics t 1 , rectangular pulse duration (seconds) thermal impedance z thjc (c/w) reverse current - i r (a) 0.01 0.1 1 10 0.00001 0.0001 0.001 0.01 0.1 1 single pulse (thermal resistance) d = 0.50 d = 0.20 d = 0.10 d = 0.05 d = 0.02 d = 0.01 2 t 1 t p dm notes: 1. duty factor d = t1/ t2 2. peak tj = pdm x zthjc + tc
mur820, murb820, MURB820-1 bulletin pd-20731 rev. c 12/03 4 www.irf.com fig. 5 - max. allowable case temperature vs. average forward current fig. 6 - forward power loss characteristics (2) formula used: t c = t j - (pd + pd rev ) x r thjc ; pd = forward power loss = i f(av) x v fm @ (i f(av) / d) (see fig. 6); pd rev = inverse power loss = v r1 x i r (1 - d); i r @ v r1 = rated v r average power loss ( watts ) trr ( nc ) 0 2 4 6 8 10 036912 dc rms limit d = 0.01 d = 0.02 d = 0.05 d = 0.10 d = 0.20 d = 0.50 qrr ( nc ) 10 20 30 40 50 100 100 0 if = 16a if = 8 a if = 4 a v = 160v t = 125 ? c t = 25 ? c r j j 0 40 80 120 160 200 100 100 0 if = 16a if = 8 a if = 4 a v = 160v t = 125 ? c t = 25 ? c r j j 130 140 150 160 170 180 036912 dc square wave (d = 0.50) rated vr applied see note (2) average forward current - i f (av) (a) allowable case temperature (c) average forward current - i f (av) (a) fig. 8 - typical stored charge vs. di f /dt fig. 7 - typical reverse recovery vs. di f /dt di f /dt (a/s ) di f /dt (a/s )
bulletin pd-20731 rev. c 12/03 5 mur820, murb820, MURB820-1 www.irf.com fig. 10 - reverse recovery waveform and definitions irfp250 d.u.t. l = 70h v = 200v r 0.01 ? g d s dif/dt adjust 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 fig. 9- reverse recovery parameter test circuit reverse recovery circuit di f /dt di f /dt 4. q rr - area under curve defined by t rr and i rrm 5. di (rec) m / dt - peak rate of change of current during t b portion of t rr 1. di f /dt - rate of change of current through zero crossing 2. i rrm - peak reverse recovery current 3. t rr - 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 q rr = t rr x i rrm 2
mur820, murb820, MURB820-1 bulletin pd-20731 rev. c 12/03 6 www.irf.com 3.78 (0.15) 3.54 (0.14) 10.54 (0.41) max. dia. 15.24 (0.60) 14.84 (0.58) 2.92 (0.11) 2.54 (0.10) 1 term 2 14.09 (0.55) 13.47 (0.53) 3.96 (0.16) 3.55 (0.14) 0.94 (0.04) 0.69 (0.03) 4.57 (0.18) 4.32 (0.17) 3 0.61 (0.02) max. 5.08 (0.20) ref. 1.32 (0.05) 1.22 (0.05) 6.48 (0.25) 6.23 (0.24) 2 0.10 (0.004) 1.40 (0.05) 1.15 (0.04) 2.89 (0.11) 2.64 (0.10) 1 3 2.04 (0.080) max. conforms to jedec outline to-220ac dimensions in millimeters and (inches) dimensions in millimeters and (inches) modified jedec outline to-262 outline table anod e 1 3 2 n/c anode 1 3 base cathode cathode
bulletin pd-20731 rev. c 12/03 7 mur820, murb820, MURB820-1 www.irf.com 10.16 (0.40) ref. 8.89 (0.35) 4.57 (0.18) 4.32 (0.17) 0.61 (0.02) max. 5.08 (0.20) ref. 1.32 (0.05) 1.22 (0.05) 13 6.47 (0.25) 6.18 (0.24) 93 ref. 2.61 (0.10) 2.32 (0.09) 5.28 (0.21) 4.78 (0.19) 4.69 (0.18) 4.20 (0.16) 0.55 (0.02) 0.46 (0.02) 14.73 (0.58) 15.49 (0.61) 1.40 (0.055) 1.14 (0.045) 3x 0.93 (0.37) 0.69 (0.27) 2x 11.43 (0.45) 17.78 (0.70) 8.89 (0.35) 3.81 (0.15) 2.08 (0.08) 2x 2.54 (0.10) 2x minimum recommended footprint 2 conforms to jedec outline d 2 pak dimensions in millimeters and (inches) outline table anod e 1 3 base cathode 2 n/c 2 ordering information table device code 1 5 24 3 1 - ultrafast mur series 2 -b = d 2 pak/ to-262 none = to-220ac 3 - current rating (8 = 8a) 4 - voltage rating (20 = 200v) 5 - ct = center tap (dual) to-220 /d 2 pak/ to-262 6 - "-1" = to-262 option mur b 8 20 ct -1 6
mur820, murb820, MURB820-1 bulletin pd-20731 rev. c 12/03 8 www.irf.com ir world headquarters: 233 kansas st., el segundo, california 90245, usa tel: (310) 252-7105 tac fax: (310) 252-7309 visit us at www.irf.com for sales contact information. 12/03 data and specifications subject to change without notice. this product has been designed and qualified for industrial level. qualification standards can be found on ir's web site.
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