unisonic technologies co., ltd BYC20 preliminary diode www.unisonic.com.tw 1 of 3 copyright ? 2015 unisonic technologies co., ltd qw-r601-027.c rectifier diode, hyperfast ? description the utc BYC20 is a rectifier diode. it provides the designers with ultra-fast switching and lo w switching loss in associated mosfet. the utc BYC20 is ideally used in half-bridge lighting ballasts, half-bridge/full-bridge switched mode power supplies and continuous current mode (ccm) power factor correction (pfc). ? features * low reverse recovery current * ultra-fast switching * low switching loss in associated mosfet * low thermal resistance ? symbol ? ordering information ordering number package pin assignment packing lead free halogen free 1 2 tab BYC20l-ta2-t BYC20g-ta2-t to-220-2 k a k tube note: pin assignment: a: anode k: cathode tab: mounting base ? marking
BYC20 preliminary diode unisonic technologies co., ltd 2 of 3 www.unisonic.com.tw qw-r601-027.c ? absolute maximum ratings parameter symbol ratings unit peak repetitive reverse voltage v rrm 600 v crest working reverse voltage v rwm 600 v reverse voltage square-wave pulse; =1.0; t tab 100c v r 500 v average forward current square-wave pulse; =0.5; t tab 93c i f(av) 20 a repetitive peak forward current square-wave pulse; =0.5; t p = 25s, t tab 93c i frm 40 a non-repetitive peak forward current t p =10ms,sine-wave pulse; i fsm 250 a t p =8.3ms,sine-wave pulse; 274 a operating junction temperature t j 150 c storage temperature t stg -40 ~ +150 c note: absolute maximum ratings are those values beyond which the device could be permanently damaged. absolute maximum ratings are stress ratings only and functional device oper ation is not implied. ? thermal data parameter symbol ratings unit junction to ambient ja 60 k/w junction to tab jb 1.2 k/w ? electrical characteristics (t j =25c, unless otherwise specified) parameter symbol test conditions min typ max unit forward voltage v f i f =20a, t j =150c 1.54 1.97 v i f =40a, t j =150c 1.95 2.34 v i f =20a 1.89 2.9 v reverse current i r v r =600v 16 200 a v r =500v, t j =100c 1.6 3.0 ma reverse recovery time t rr i f =1a, v r =30v, di f /dt=50a/ s(figure 1) 35 55 ns i f =20a,v r =400v, di f /dt=500a/ s (figure 1) t j =25c 19 ns t j =100c 32 40 ns peak reverse recovery current i rm i f =20a,v r =400v, t j =125c (figure 1) di f /dt=50a/ s 3.0 7.5 a di f /dt=500a/ s 9.5 12 a forward recovery voltage v fr i f =20a, di f /dt=100a/ s (figure 2) 8 11 v
BYC20 preliminary diode unisonic technologies co., ltd 3 of 3 www.unisonic.com.tw qw-r601-027.c ? typical characteristics utc assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all utc products described or contained herein. utc products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. the information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.
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