document number: 93506 for technical ques tions, contact: ind-modules@vishay.com www.vishay.com revision: 29-sep-08 1 standard recovery diodes (stud version), 25 a 25f(r) series vishay high power products features ? high surge current capability ? stud cathode and stud anode version ? wide current range ? types up to 1200 v v rrm ? rohs compliant typical applications ? battery charges ? converters ? power supplies ? machine tool controls electrical specifications note (1) avalanche version only available from v rrm 400 v to 1200 v product summary i f(av) 25 a do-203aa (do-4) rohs compliant major ratings and characteristics parameter test conditions values units i f(av) 25 a t c 120 c i f(rms) 40 a i fsm 50 hz 356 a 60 hz 373 i 2 t 50 hz 636 a 2 s 60 hz 580 v rrm range 100 to 1200 v t j - 65 to 175 c voltage ratings type number voltage code v rrm , maximum repetitive peak reverse voltage v v rsm , maximum non-repetitive peak voltage v v r(br) , minimum avalanche voltage v (1) i rrm maximum at t j = 175 c ma 25f(r) 10 100 150 - 12 20 200 275 - 40 400 500 500 60 600 725 750 80 800 950 950 100 1000 1200 1150 120 1200 1400 1350
www.vishay.com for technical questi ons, contact: ind-modules@vishay.com document number: 93506 2 revision: 29-sep-08 25f(r) series vishay high power products standard recovery diodes (stud version), 25 a note (1) available only for avalanch e version, all other par ameters the same as 25f forward conduction parameter symbol test conditions values units maximum average forward current at case temperature i f(av) 180 conduction, half sine wave 25 a 120 c maximum rms forward current i f(rms) 40 a maximum on-repetitive peak reverse power p r (1) 10 s square pulse, t j = t j maximum 10 k/w maximum peak, one-cycle forward, non-repetitive surge current i fsm t = 10 ms no voltage reapplied sinusoidal half wave, initial t j = t j maximum 356 a t = 8.3 ms 373 t = 10 ms 100 % v rrm reapplied 300 t = 8.3 ms 314 maximum i 2 t for fusing i 2 t t = 10 ms no voltage reapplied 636 a 2 s t = 8.3 ms 580 t = 10 ms 100 % v rrm reapplied 450 t = 8.3 ms 410 maximum i 2 t for fusing i 2 t t = 0.1 to 10 ms, no voltage reapplied 6360 a 2 s low level value of threshold voltage v f(to)1 (16.7 % x x i f(av) < i < x i f(av) ), t j = t j maximum 0.80 v high level value of threshold voltage v f(to)2 (i > x i f(av) ), t j = t j maximum 0.90 low level value of forward slope resistance r f1 (16.7 % x x i f(av) < i < x i f(av) ), t j = t j maximum 6.80 m high level value of forward slope resistance r f2 (i > x i f(av) ), t j = t j maximum 5.70 maximum forward voltage drop v fm i pk = 78 a, t j = 25 c, t p = 400 s rectangular wave 1.30 v thermal and mechanical specifications parameter symbol test conditions values units maximum junction operating temperature range t j - 65 to 175 c maximum storage temperature range t stg - 65 to 200 maximum thermal resistance, junction to case r thjc dc operation 1.5 k/w maximum thermal resistance, case to heatsink r thcs mounting surface, smooth, flat and greased 0.5 allowable mounting torque not lubricated threads 1.5 + 0 - 10 % (13) n m (lbf in) lubricated threads 1.2 + 0 - 10 % (10) n m (lbf in) approximate weight 7g 0.25 oz. case style see dimensions - link at the end of datasheet do-203aa (do-4)
document number: 93506 for technical ques tions, contact: ind-modules@vishay.com www.vishay.com revision: 29-sep-08 3 25f(r) series standard recovery diodes (stud version), 25 a vishay high power products note ? the table above shows the increment of thermal resistance r thjc when devices operate at di fferent conduction angles than dc fig. 1 - current ratings characteristics f ig. 2 - current ratings characteristics fig. 3 - forward powe r loss characteristics r thjc conduction conduction angle sinusoidal conduction rec tangular conduction test conditions units 180 0.28 0.24 t j = t j maximum k/w 120 0.39 0.41 90 0.50 0.54 60 0.73 0.75 30 1.20 1.21 100 110 120 130 140 150 160 170 180 0 5 10 15 20 25 30 30 60 90 120 180 maximum allowable case temperature (c) conduction angle average forward current (a) 25f(r) series r (dc) = 1.5 k/w thjc 100 110 120 130 140 150 160 170 180 0 5 10 15 20 25 30 35 40 45 dc 30 60 90 120 180 maximum allowable case temperature (c) conduction period average forward current (a) 25f(r) series r (dc) = 1.5 k/w thjc 0 25 50 75 100 125 150 175 maximum allowable ambient temperature (c) r = 1 k / w - d e l t a r t h s a 2 k / w 3 k / w 4 k / w 6 k / w 8 k / w 1 2 k / w 2 0k / w 4 0 k / w 0 5 10 15 20 25 30 35 0 5 10 15 20 25 30 average forward current (a) rms limit maximum average forward power loss (w) conduction angl e 180 120 90 60 30 25f(r) series t = 175c j
www.vishay.com for technical questi ons, contact: ind-modules@vishay.com document number: 93506 4 revision: 29-sep-08 25f(r) series vishay high power products standard recovery diodes (stud version), 25 a fig. 4 - forward power loss characteristics fig. 5 - maximum non-repetitive surge current fig. 6 - maximum non-repetitive surge current fig. 7 - forward volt age drop characteristics fig. 8 - thermal impedance z thjc characteristics 0255075100 maximum allowable ambient temperature (c) 1 0 k / w 1 5 k / w r = 4 k / w - d e l t a r t h s a 6 k / w 8 k / w 2 0 k / w 3 0 k / w 0 5 10 15 20 25 0 5 10 15 20 25 30 dc 180 120 90 60 30 average forward current (a) rms limit maximum average forward power loss (w) conduction period 16f(r) series t = 175c j 50 100 150 200 250 300 350 110100 peak half sine wave forward current (a) number of equal amplitude half cycle current pulses (n) initial t = 175c @ 60 hz 0.0083 s @ 50 hz 0.0100 s at any rated load condition and with rated v applied following surge. rrm j 25f(r) series 0 50 100 150 200 250 300 350 400 0.01 0.1 1 10 peak half sine wave forward current (a) pulse train duration (s) maxi mum non repeti tive surge current initial t = 175c no voltage reapplied rated v reapplied versus pulse train duration. j rrm 25f(r) series 1 10 100 1000 0 0.5 1 1.5 2 2.5 3 3.5 4 t = 25c j instantaneous forward current (a) instantaneous forward voltage (v) t = 175c j 25f(r) series 0.1 1 10 0.001 0.01 0.1 1 10 square wave pulse duration (s) thjc transient thermal impedance z (k/w) 25f(r) series steady state value r = 1.5 k/w (dc operation) thjc
document number: 93506 for technical ques tions, contact: ind-modules@vishay.com www.vishay.com revision: 29-sep-08 5 25f(r) series standard recovery diodes (stud version), 25 a vishay high power products ordering information table 1 - current rating: code = i f(av) 2 - f = standard device 3 - none = stud normal polarity (cathode to stud) r = stud reverse polarity (anode to stud) 4 - voltage code x 10 = v rrm (see voltage ratings table) 5 - none = stud base do-203aa (do-4) 10-32unf-2a m = stud base do-203aa (do-4) m5 x 0.8 (not available for avalanche diodes) device code 5 13 24 25 f r 120 m links to related documents dimensions http://www.vishay.com/doc?95311
document number: 91000 www.vishay.com revision: 18-jul-08 1 disclaimer legal disclaimer notice vishay all product specifications and data are subject to change without notice. vishay intertechnology, inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, ?vishay?), disclaim any and all liability fo r any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. vishay disclaims any and all li ability arising out of the use or application of any product describ ed herein or of any information provided herein to the maximum extent permit ted by law. the product specifications do not expand or otherwise modify vishay?s terms and conditions of purcha se, including but not limited to the warranty expressed therein, which apply to these products. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of vishay. the products shown herein are not designed for use in medi cal, life-saving, or life-sustaining applications unless otherwise expressly indicated. customers using or selling vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify vishay for any damages arising or resulting from such use or sale. please contact authorized vishay personnel to obtain written terms and conditions regarding products designed for such applications. product names and markings noted herein may be trademarks of their respective owners.
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