features wide current range high voltage ratings up to 2400v high surge current capabilities stud cathode and stud anode version standard jedec types typical applications converters power supplies machine tool controls high power drives medium traction applications major ratings and characteristics i f(av) 400 a @ t c 120 c i f(rms) 630 a i fsm @ 50hz 8250 a @ 60hz 8640 a i 2 t@ 50hz 340 ka 2 s @ 60hz 311 ka 2 s v rrm range 1600 to 2400 v t j - 40 to 190 c parameters sd400n/r units case style do-205ab (do-9) sd400n/r series standard recovery diodes stud version 400a 1 bulletin i2082 rev. d 03/03 www.irf.com
sd400n/r series 2 bulletin i2082 rev. d 03/03 www.irf.com electrical specifications voltage ratings voltage v rrm , maximum repetitive v rsm , maximum non- i rrm max. type number code peak reverse voltage repetitive peak rev. voltage @ t j = t j max. vvma 16 1600 1700 20 2000 2100 24 2400 2500 sd400n/r 15 i f(av) max. average forward current 400 a 180 conduction, half sine wave @ case temperature 120 c i f(av) max. average forward current 480 a 180 conduction, half sine wave @ case temperature 100 c i f(rms) max. rms forward current 630 a dc @ 110c case temperature i fsm max. peak, one-cycle forward, 8250 t = 10ms no voltage non-repetitive surge current 8640 t = 8.3ms reapplied 6940 t = 10ms 100% v rrm 7270 t = 8.3ms reapplied sinusoidal half wave, i 2 t maximum i 2 t for fusing 340 t = 10ms no voltage initial t j = t j max. 311 t = 8.3ms reapplied 241 t = 10ms 100% v rrm 220 t = 8.3ms reapplied i 2 t maximum i 2 t for fusing 3400 ka 2 s t = 0.1 to 10ms, no voltage reapplied v f(to)1 low level value of threshold voltage v f(to)2 high level value of threshold voltage r f 1 low level value of forward slope resistance r f 2 high level value of forward slope resistance v fm max. forward voltage drop 1.62 v i pk = 1500a, t j = t j max, t p = 10ms sinusoidal wave parameter sd400n/r units conditions forward conduction ka 2 s a v m ? 0.51 (i > x i f(av) ),t j = t j max. 0.55 (16.7% x x i f(av) < i < x i f(av) ), t j = t j max. 0.85 (i > x i f(av) ),t j = t j max. 0.80 (16.7% x x i f(av) < i < x i f(av) ), t j = t j max.
sd400n/r series bulletin i2082 rev. d 03/03 www.irf.com 3 t j max. junction operating temperature range -40 to 190 t stg max. storage temperature range -55 to 200 r thjc max. thermal resistance, junction to case 0.11 dc operation r thcs max. thermal resistance, case to heatsink 0.04 mounting surface, smooth, flat and greased t max. allowed mounting torque 10% 27 nm not lubricated threads wt approximate weight 250 g case style do-205ab (do-9) see outline table parameter sd400n/r units conditions thermal and mechanical specifications c ? r thjc conduction (the following table shows the increment of thermal resistence r thjc when devices operate at different conduction angles than dc) k/w 180 0.020 0.013 120 0.023 0.023 90 0.029 0.031 k/w t j = t j max. 60 0.042 0.044 30 0.073 0.074 conduction angle sinusoidal conduction rectangular conduction units conditions ordering information table sd 40 0 n 24 p c 1 2 3 4 5 6 7 device code 1 - diode 2 - essential part number 3 - 0 = standard recovery 4 - n = stud normal polarity (cathode to stud) r = stud reverse polarity (anode to stud) 5 - voltage code: code x 100 = v rrm (see voltage ratings table) 6 - p = stud base do-205ab (do-9) 3/4" 16unf-2a 7 - c = ceramic housing note: for metric device m16 x 1.5 contact factory
sd400n/r series 4 bulletin i2082 rev. d 03/03 www.irf.com outline table conform to jedec do-205ab (do-9) all dimensions in millimeters (inches) fig. 1 - current ratings characteristics fig. 2 - current ratings characteristics 110 120 130 140 150 160 170 180 190 0 50 100 150 200 250 300 350 400 450 30 60 90 120 180 average forward current (a) conduction angle maximum allowable case temperature (c) sd400n/ r series r (dc) = 0.11 k/ w thjc 100 110 120 130 140 150 160 170 180 190 0 100 200 300 400 500 600 700 dc 30 60 90 120 180 conduction period maximum allowable case temperature (c) average forward current (a) sd 4 0 0 n / r se r i e s r (dc) = 0.11 k/ w thjc * for metric device: m16 x 1.5 contact factory
sd400n/r series bulletin i2082 rev. d 03/03 www.irf.com 5 fig. 3 - forward power loss characteristics fig. 4 - forward power loss characteristics 10 30 50 70 90 110 130 150 170 190 maximum allowable ambient temperature (c) 0 . 2 k / w 0 . 3 k / w 0 . 4 k / w 0 . 6 k / w 1 k / w r = 0 . 0 4 k / w - d e l t a r t h s a 0 . 1 k / w 1 . 8 k / w 0 50 100 150 200 250 300 350 400 450 500 550 0 50 100 150 200 250 300 350 400 180 120 90 60 30 rm s li m i t conduction angle maximum average forward power loss (w) average forward current (a) sd 4 0 0 n / r se r i e s t = 190c j 10 30 50 70 90 110 130 150 170 190 maximum allowable ambient temperature (c) 0 . 2 k / w 0 . 3 k / w 0 . 4 k / w 0 . 6 k / w 1 k / w r = 0 . 0 4 k / w - d e l t a r t h s a 0 . 1 k / w 1 . 8 k / w 0 100 200 300 400 500 600 700 800 0 100 200 300 400 500 600 700 dc 180 120 90 60 30 rm s li m i t conduction period maximum average forward power loss (w) average forward current (a) sd 4 0 0 n / r se r i e s t = 190c j fig. 5 - maximum non-repetitive surge current fig. 6 - maximum non-repetitive surge current 2000 3000 4000 5000 6000 7000 8000 110100 number of equal amplitude half cycle current pulses (n) peak half sine wave forward current (a) sd 4 0 0 n / r se r i e s initia l t = 190c @ 60 hz 0.0083 s @ 50 hz 0.0100 s j at any rated load condition and with rated v applied following surge. rrm 1000 2000 3000 4000 5000 6000 7000 8000 9000 0.01 0.1 1 pu lse tra in du ra t io n ( s) peak half sine wave forward current (a) versus pulse train duration. maximum non repetitive surge current in it ia l t = 190c no voltage reapplied rated v reapplied rrm j sd400n/ r series
sd400n/r series 6 bulletin i2082 rev. d 03/03 www.irf.com fig. 7 - forward voltage drop characteristics fig. 8 - thermal impedance z thjc characteristic 100 1000 10000 0.5 1 1.5 2 2.5 t = 25c j instantaneous forward voltage (v) instantaneous forward current (a) sd 4 0 0 n / r se r i e s t = 190c j 0.001 0.01 0.1 1 0.001 0.01 0.1 1 10 sq ua re wa ve pulse dura t io n (s) thjc transient thermal impedance z (k/w) sd 4 0 0 n / r se r i e s steady state value: r = 0.11 k/ w (dc operation) thjc 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. 03/03 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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