235a fast recovery diodes stud version sd233n/r series 1 bulletin i2094 rev. a 09/94 www.irf.com features high power fast recovery diode series 4.5 s recovery time high voltage ratings up to 4500v high current capability optimized turn on and turn off characteristics low forward recovery fast and soft reverse recovery compression bonded encapsulation stud version case style b-8 maximum junction temperature 125c typical applications snubber diode for gto high voltage free-wheeling diode fast recovery rectifier applications i f(av) 235 a @ t c 60 c i f(rms) 370 a i fsm @ 50hz 5500 a @ 60hz 5760 a i 2 t@ 50hz 151 ka 2 s @ 60hz 138 ka 2 s v rrm range 3000 to 4500 v t rr 4.5 s @ t j 125 c t j -40 to 125 c parameters sd233n/r units major ratings and characteristics case style b-8
sd233n/r series 2 bulletin i2094 rev. a 09/94 www.irf.com voltage v rrm max. repetitive v rsm , maximum non- i rrm max. type number code peak and off-state voltage repetitive peak voltage t j = 125c vvma 30 3000 3100 36 3600 3700 40 4000 4100 45 4500 4600 electrical specifications voltage ratings sd233n/r 50 i f(av) max. average forward current 235 a 180 conduction, half sine wave. @ case temperature 60 c i f(rms) max. rms current 370 a @ 45c case temperature i fsm max. peak, one-cycle 5500 t = 10ms no voltage non-repetitive forward current 5760 t = 8.3ms reapplied 4630 t = 10ms 50% v rrm 4840 t = 8.3ms reapplied sinusoidal half wave, i 2 t maximum i 2 t for fusing 151 t = 10ms no voltage initial t j = t j max. 138 t = 8.3ms reapplied 107 t = 10ms 50% v rrm 98 t = 8.3ms reapplied i 2 ? t maximum i 2 ? t for fusing 1510 ka 2 ? s t = 0.1 to 10ms, no voltage reapplied v f(to)1 low level of threshold voltage 1.56 (16.7% x p x i f(av) < i < p x i f(av) ), t j = t j max. v f(to) 2 high level of threshold voltage 1.68 (i > p x i f(av) ), t j = t j max. r f1 low level of forward slope resistance 1.64 (16.7% x p x i f(av) < i < p x i f(av) ), t j = t j max. r f2 high level of forward slope resistance 1.53 (i > p x i f(av) ), t j = t j max. v fm max. forward voltage 3.2 v i pk = 1000a, t j = 125c, t p = 400 s square pulse parameter sd233n/r units conditions forward conduction ka 2 s a m w v test conditions max. values @ t j = 125 c code ( m s) (a) (a/ m s) (v) ( m s) ( m c) (a) recovery characteristics s50 5.0 1000 100 - 50 4.5 680 240 (*) di/dt = 25a/us @ t j = 25c t j = 25 o c typical t rr i pk di/dt (*) v r t rr q rr i rr @ 25% i rrm square pulse @ 25% i rrm
sd233n/r series 3 bulletin i2094 rev. a 09/94 www.irf.com thermal and mechanical specification parameter sd233n/r units conditions c t j max. operating temperature range -40 to 125 t stg max. storage temperature range -40 to 150 r thjc max. thermal resistance, junction to case 0.1 dc operation r thcs max. thermal resistance, case to heatsink 0.04 mounting surface, smooth, flat and greased t mounting torque 10% 50 not lubricated threads wt approximate weight 454 g case style b-8 see outline table k/w nm 180 0.010 0.008 t j = t j max. 120 0.013 0.014 90 0.017 0.018 k/w 60 0.025 0.026 30 0.041 0.042 conduction angle sinusoidal conduction rectangular conduction units conditions d r thjc conduction (the following table shows the increment of thermal resistence r thjc when devices operate at different conduction angles than dc) 1 - diode 2 - essential part number 3 - 3 = fast 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 -t rr code (see recovery characteristics table) 7 - p = stud base b-8 3/4" 16unf-2a m = stud base b-8 m24 x 1.5 8 - 7 s = isolated lead with silicone sleeve (red = reverse polarity; blue = normal polarity) t = threaded top terminal 3/8" 24unf-2a none = not isolated lead 9 - c = ceramic housing 5 1 2 3 4 sd 23 3 n 45 s50 p s c 7 6 89 device code ordering information table
sd233n/r series 4 bulletin i2094 rev. a 09/94 www.irf.com outlines table case style b-8 all dimensions in millimeters (inches) case style b-8 with top thread terminal 3/8" all dimensions in millimeters (inches) 26 (1.023) max. 10.5 (0.41) dia. 12 (0.47) min. 47 (1.85) 2 7.5 (1.08) 115 (4.52) min. 38 (1.5) dia. max. 245 (9.645) 255 (10.04) max. max. ceramic housing sw 45 * for metric device: m24 x 1.5 - lenght screw 21 (0.83) max. c.s. 70mm 5(0.20) 0.3(0.01) 2 80 (3.15) max. 21 (0.83) max. 3/4"-16unf-2a * 47 (1.85) 27.5 (1.08) 77. 5 (3.05) 80. 5 (3.17) 38 (1.5) dia. max. max. max. max. ceramic housing sw 45 * for metric device: m24 x 1.5 - lenght screw 21 (0.83) max. 21 (0.83) 3/4"-16unf-2a * 25 ( 0.9 8) 3/8"-24unf-2a 17 (0.67) dia.
sd233n/r series 5 bulletin i2094 rev. a 09/94 www.irf.com 0 100 200 300 400 500 600 700 800 900 0 50 100 150 200 250 300 350 400 dc 180 120 90 60 30 average forward current (a) rms limit maximum average forward power loss (w) conduction period sd233n/r series t = 125c j 1500 2000 2500 3000 3500 4000 4500 5000 5500 110100 number of eq ua l amp litude ha lf cycle current pulses (n) peak half sine wave forward current (a) sd233n/r ser ies initial t = 125 c @ 60 hz 0.0083 s @ 50 hz 0.0100 s j at any rated load condition and with 50% rated v applied following surge rrm 1000 2000 3000 4000 5000 6000 0.01 0.1 1 pulse train duration (s) peak half sine wave forward current (a) maximum non repetitive surge current sd233n/r series no voltage reapplied versus pulse train duration. in itial t = 125 c j 50% rated v reapplied rrm 0 100 200 300 400 500 600 0 50 100 150 200 250 180 120 90 60 30 average forward current (a) maximum average forward power loss (w) rms limit conduction angle sd233n/r series t = 125c j fig. 4 - forward power loss characteristics fig. 3 - forward power loss characteristics fig. 6 - maximum non-repetitive surge current fig. 5 - maximum non-repetitive surge current fig. 1 - current ratings characteristics fig. 2 - current ratings characteristics 50 60 70 80 90 100 110 120 130 0 50 100 150 200 250 30 60 90 120 180 average forward current (a) conduction angle maximum allowable case tem perature ( c) sd 233n/r series r (dc) = 0.1 k/w thjc 30 40 50 60 70 80 90 100 110 120 130 0 100 200 300 400 30 60 90 180 dc 120 average forward current (a) conduction period maximum allowable case temperature ( c) sd233n/r series r (dc) = 0.1 k/w thj c
sd233n/r series 6 bulletin i2094 rev. a 09/94 www.irf.com 0 50 100 150 200 250 300 350 400 450 500 0 200 400 600 800 1000 1200 1400 1600 1800 2000 forward recovery (v) t = 125 c t = 25c j j sd233n/r series rate of rise of forward current - di/dt (a/us) i v fp 0 200 400 600 800 1000 1200 1400 0 50 100 150 200 250 300 maximum reverse recovery charge - qrr ( c) rate of fall of forward current - di/dt (a/ s) 500 a 150 a i = 1000 a sine pulse fm sd233n/r ser ies t = 125 c; v > 100v j r 2 3 4 5 6 7 8 9 10 100 1000 rate of fall of forward current - di/dt (a/ s) maximum rever se recovery time - trr ( s) 500 a 150 a i = 1000 a sine pulse fm sd233n/ r series t = 125 c; v > 100v j r 0 100 200 300 400 500 600 0 50 100 150 200 250 300 maximum reverse recovery current - irr (a) 500 a rate of fall of forward current - di/dt (a/ s) 150 a i = 1000 a sine pulse fm sd233n/r series t = 125 c; v > 100v r j fig. 9 - typical forward recovery characteristics fig. 12 - recovery current characteristics fig. 11 - recovery charge characteristics fig. 10 - recovery time characteristics 100 1000 10000 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 t = 25 c j instantaneous forward voltage (v) instantaneous forward current (a) t = 125c j sd233n/r series 0.001 0.01 0.1 1 0.001 0.01 0.1 1 10 square wave pulse duration (s) thjc transient thermal impedance z (k/w) sd 233n/r series steady state value: r = 0.1 k/w (dc operation) thjc fig. 7 - forward voltage drop characteristics fig. 8 - thermal impedance z thjc characteristic
sd233n/r series 7 bulletin i2094 rev. a 09/94 www.irf.com 1e2 1e3 1e4 1e11e21e31e4 1 2 pulse basewidth ( s) 4 10 joules per pulse 6 0.5 0.3 sd233n/r series peak forward current (a) dv/dt = 1000v/ s di/dt = 100a/s trapezoidal pul se t = 125c, v = 1500v j rrm tp 1e2 1e3 1e4 1e11e21e31e4 pulse basewidth ( s) trapezoidal pulse 50 h z 100 200 400 1000 1500 2000 600 t = 55 c, v = 15 00v peak forward current (a) sd233n/r series rrm dv/dt = 1000v/us di/dt = 100a/us c tp 1e2 1e3 1e4 1e11e21e31e4 pulse basewidth ( s) 50 hz 100 200 400 1000 1500 2000 600 t = 55 c, v = 1500v rrm peak forward current (a) sd23 3n / r se ries trapezoidal pulse c dv/dt = 100 0v/us , di/dt = 300a/us tp 1e2 1e3 1e4 1e1 1e2 1e3 1e4 1 2 pulse basewidth ( s) 4 10 joules per pulse 6 0.5 0.3 sd233n/r series trapezoidal pulse peak forward current (a) dv/dt = 1000v/ s di/dt = 300a/s t = 125 c, v = 1500v j rrm tp fig. 16 - frequency characteristics fig. 15 - maximum total energy loss per pulse characteristics fig. 17 - maximum total energy loss per pulse characteristics fig. 18 - frequency characteristics 1e2 1e3 1e4 1e1 1e2 1e3 1e4 1 2 pulse basewidth ( s) peak forward current (a) 10 j oule s per p ul se 6 4 0.5 0.3 dv/dt = 1000v/ s t = 125c, v = 1500v j rrm sinusoidal pulse sd233n/r series tp 1e2 1e3 1e4 1e1 1e2 1e3 1e4 pulse basewidth ( s ) 50 hz 200 100 4000 dv/dt = 1000v/us 400 1000 2000 peak forward current (a) sinusoidal pulse sd233n/r series t = 55 c, v = 15 00v c rrm 600 tp fig. 14 - frequency characteristics fig. 13 - maximum total energy loss per pulse characteristics
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