document number: 93140 for technical ques tions, contact: diodes-tech@vishay.com www.vishay.com revision: 12-jun-08 1 fast soft recovery rectifier diode, 20 a 20ETF.. soft recovery series vishay high power products features/description the 20ETF.. fast soft recove ry rectifier series has been optimized for combined short reverse recovery time and low forward voltage drop. the glass passivation ensures stable reliable operation in the most severe temperature and power cycling conditions. this product series has been designed and qualified for industrial level. applications ? output rectification and freewheeling in inverters, choppers and converters ? input rectifications where se vere restrictions on conducted emi should be met product summary v f at 20 a < 1.31 v i fsm 355 a v rrm 800 to 1200 v anode 1 2 3 cathode to-220ac base cathode major ratings and characteristics symbol characteristics values units v rrm 800 to 1200 v i f(av) sinusoidal waveform 20 a i fsm 355 t rr 1 a, 100 a/s 95 ns v f 20 a, t j = 25 c 1.31 v t j range - 40 to 150 c voltage ratings part number v rrm , maximum peak reverse voltage v v rsm , maximum non-repetitive peak reverse voltage v i rrm at 150 c ma 20ETF08 800 900 6 20ETF10 1000 1100 20ETF12 1200 1300 absolute maximum ratings parameter symbol test conditions values units maximum average forward current i f(av) t c = 97 c, 180 conduction half sine wave 20 a maximum peak one cycle non-repetitive surge current i fsm 10 ms sine pulse, rated v rrm applied 300 10 ms sine pulse, no voltage reapplied 355 maximum i 2 t for fusing i 2 t 10 ms sine pulse, rated v rrm applied 450 a 2 s 10 ms sine pulse, no voltage reapplied 635 maximum i 2 t for fusing i 2 t t = 0.1 to 10 ms, no voltage reapplied 6350 a 2 s
www.vishay.com for technical questi ons, contact: diodes-tech@vishay.com document number: 93140 2 revision: 12-jun-08 20ETF.. soft recovery series vishay high power products fast soft recovery rectifier diode, 20 a electrical specifications parameter symbol test conditions values units maximum forward voltage drop v fm 20 a, t j = 25 c 1.31 v forward slope resistance r t t j = 150 c 11.88 m threshold voltage v f(to) 0.93 v maximum reverse leakage current i rm t j = 25 c v r = rated v rrm 0.1 ma t j = 150 c 6 recovery characteristics parameter symbol test conditions values units reverse recovery time t rr i f at 20 apk 25 a/s 25 c 400 ns reverse recovery current i rr 6.1 a reverse recovery charge q rr 1.7 c snap factor s typical 0.6 i fm t rr dir dt i rm(rec) q rr t t a t b thermal - mechanical specifications parameter symbol test conditions values units maximum junction and storage temperature range t j , t stg - 40 to 150 c maximum thermal resistance, junction to case r thjc dc operation 0.9 c/w maximum thermal resistance, junction to ambient r thja 62 typical thermal resistance, case to heatsink r thcs mounting surface, smooth and greased 0.5 approximate weight 2g 0.07 oz. mounting torque minimum 6 (5) kgf cm (lbf in) maximum 12 (10) marking device cas e style to-220ac 20ETF08 20ETF10 20ETF12
document number: 93140 for technical ques tions, contact: diodes-tech@vishay.com www.vishay.com revision: 12-jun-08 3 20ETF.. soft recovery series fast soft recovery rectifier diode, 20 a vishay high power products fig. 1 - current rating characteristics fig. 2 - current rating characteristics fig. 3 - forward power loss characteristics fig. 4 - forward powe r loss characteristics fig. 5 - maximum non-repetitive surge current fig. 6 - maximum non-repetitive surge current 150 0 maximum allowable case temperature (c) average forward current (a) 5 100 10 25 120 130 110 15 20 140 conduction angle 20ETF.. series r thjc (dc) = 0.9 k/w 30 60 90 120 180 ? 150 025 maximum allowable case temperature (c) average forward current (a) 15 530 110 35 120 100 10 20 130 140 20ETF.. series r thjc (dc) = 0.9 k/w ? conduction period 30 60 90 120 180 dc 10 0 35 0 maximum average forward power loss (w) average forward current (a) 20 25 25 30 20 10 15 5 5 15 conduction angle 20ETF.. series t j = 150 c rms limit 180 120 90 60 30 ? 10 0 35 0 maximum average forward power loss (w) average forward current (a) 25 25 15 10 20 5 15 5 20 30 rms limit ? conduction period 20ETF.. series t j = 150 c 180 120 90 60 30 350 50 1 10 100 peak half sine wave forward current (a) number of equal amplitude half cycle current pulses (n) 200 100 150 250 at any rated load condition and with rated v rrm applied following surge. initial t j = 150 c at 60 hz 0.0083 s at 50 hz 0.0100 s 20ETF.. series 300 150 50 0.01 0.1 1 peak half sine wave forward current (a) pulse train duration (s) 300 100 200 250 350 400 20ETF.. series maximum non-repetitive surge current versus pulse train duration. initial t j = 150 c no voltage reapplied rated v rrm reapplied
www.vishay.com for technical questi ons, contact: diodes-tech@vishay.com document number: 93140 4 revision: 12-jun-08 20ETF.. soft recovery series vishay high power products fast soft recovery rectifier diode, 20 a fig. 7 - forward voltage drop characteristics fig. 8 - recovery time characteristics, t j = 25 c fig. 9 - recovery time characteristics, t j = 150 c fig. 10 - recovery char ge characteristics, t j = 25 c fig. 11 - recovery charge characteristics, t j = 150 c 1000 10 1 0 1.0 2.0 instantaneous forward current (a) instantaneous forward voltage (v) 100 3.0 4.0 t j = 25 c t j = 150 c 20ETF.. series 0.5 1.5 2.5 3.5 0.7 0.5 0 0 50 100 150 200 t rr - maximum reverse recovery time (s) di/dt - rate of fall of forward current (a/s) 0.1 0.3 20ETF.. series t j = 25 c i fm = 10 a i fm = 5 a i fm = 1 a i fm = 30 a i fm = 20 a 0.2 0.4 0.6 1.2 0 0 50 100 150 200 t rr - maximum reverse recovery time (s) di/dt - rate of fall of forward current (a/s) 0.6 0.9 0.3 20ETF.. series t j = 150 c i fm = 30 a i fm = 1 a i fm = 20 a i fm = 10 a i fm = 5 a 6 0 0 50 100 150 200 q rr - maximum reverse recovery charge (c) di/dt - rate of fall of forward current (a/s) 3 1 2 4 5 20ETF.. series t j = 25 c i fm = 30 a i fm = 20 a i fm = 10 a i fm = 5 a i fm = 1 a 0 0 50 100 150 200 q rr - maximum reverse recovery charge (c) di/dt - rate of fall of forward current (a/s) 2 4 20ETF.. series t j = 150 c 6 8 10 i fm = 30 a i fm = 20 a i fm = 10 a i fm = 5 a i fm = 1 a
document number: 93140 for technical ques tions, contact: diodes-tech@vishay.com www.vishay.com revision: 12-jun-08 5 20ETF.. soft recovery series fast soft recovery rectifier diode, 20 a vishay high power products fig. 12 - recovery current characteristics, t j = 25 c fig. 13 - recovery current characteristics, t j = 150 c fig. 14 - thermal impedance z thjc characteristics 25 0 0 50 100 150 200 i rr - maximum reverse recovery current (a) di/dt - rate of fall of forward current (a/s) 5 15 10 20 20ETF.. series t j = 25 c i fm = 30 a i fm = 20 a i fm = 10 a i fm = 5 a i fm = 1 a 35 20 0 0 50 100 150 200 i rr - maximum reverse recovery current (a) di/dt - rate of fall of forward current (a/s) 5 10 30 20ETF.. series t j = 150 c 15 25 i fm = 30 a i fm = 20 a i fm = 10 a i fm = 5 a i fm = 1 a 0.01 1 1 0.0001 0.001 0.01 0.1 square wave pulse duration (s) z thjc - transient thermal impedance (k/w) 0.1 single p u lse 20ETF.. series steady state v al u e (dc operation) d = 0.50 d = 0.33 d = 0.25 d = 0.17 d = 0.0 8
www.vishay.com for technical questi ons, contact: diodes-tech@vishay.com document number: 93140 6 revision: 12-jun-08 20ETF.. soft recovery series vishay high power products fast soft recovery rectifier diode, 20 a ordering information table 1 - current rating (20 = 20 a) 2 - circuit configuration: e = single diode 3 - package: t = to-220ac 4 - type of silicon: f = fast soft recovery rectifier 5 - voltage ratings 6 - none = standard production pbf = lead (pb)-free 08 = 800 v 10 = 1000 v 12 = 1200 v device code 5 13 24 6 20 e t f 12 - links to related documents dimensions http://www.vishay.com/doc?95221 part marking information http://www.vishay.com/doc?95224
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