features n wide operating input voltage range n meets iec 60950-1, functional grade of insulation n rohs compliant* applications n ti ucc28880 high voltage switcher n ac/dc power supplies n metering, home automation, appliances, white goods and led drivers SM91047EL flyback transformer *rohs directive 2002/95/ec jan. 27, 2003 including annex and rohs recast 2011/65/eu june 8, 2011. specifcations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. users should verify actual device performance in their specifc applications. ti is a trademark or registered trademark of its respective owner. electrical specifcations @ 25 c inductance @10 khz, 1 v pin 9-7 .......................... 5.0 mh 15 % l drop @10 khz, 1 v @ 0.2 adc pin 9-7 ................................ >85 % l 0a leakage inductance @10 khz, 1 v pin 9-7 ............................ 100 h max. (pin 2,4 short) dcr pin 9-7 ............................ 8.0 w 20 % pin 2-4 ......................... 104 mw 30 % turns ratio & polarity @10 khz, 1 v pin 9-7 : pin 2-4 ........... 11.875 : 1 typ. hi-pot np to ns ...................... 1.5k vrms, 2 ma, 2 sec. np, ns to core ...... 200 vrms, 2 ma, 2 sec. operating temperature range ................................ -40 c to +125 c including temperature rise storage temperature range .................................. -40 c to +85 c electrical schematic packaging specifcations tape & reel ....................... 180 pcs./reel product dimensions dimensions: mm (inches) recommended layout *rohs compliant lead free *rohs compliant versions available lead free versions are rohs compliant* how to order sm91047 e l model packaging e = tape and reel (180 pcs./reel) termination l = tin (rohs compliant) refow solder profle 5 1 6 10 13.50 (.531) max. 12.70 (.500) max. SM91047EL yywws pin 1 indicator 17.80 (.701) max. 15.40 (.606) ref. 0.70 x 0.30 (.028 x .012) ref. 1 5 10 6 2.50 0.30 (.098 .012) 1.88 (.074) 16.36 (.644) 2.50 (.098) 1.17 (.046) 9 7 2 ns np 4 t p t p t p t s tt o ramp-up l t l t l tm ax. s t min. 25 c preheat s temperature time critical zone ramp-down t 25 c to peak ramp-up rate = 3 c/sec. max. ramp-down rate = 6 c/sec. max. t l = 217 c t l = 60-150 sec. t p = 245 c 5 c time within 5 c of actual peak temp (t p ) = 20~40 sec. t s min = 150 c ts max = 200 c t s min to t s max = 60-180 sec., 25 c to peak temperature = 6 min. max. 5 1 6 10 13.50 (.531) max. 12.70 (.500) max. SM91047EL yywws pin 1 indicator 17.80 (.701) max. 15.40 (.606) ref. 0.70 x 0.30 (.028 x .012) ref. 1 5 10 6 2.50 0.30 (.098 .012) 1.88 (.074) 16.36 (.644) 2.50 (.098) 1.17 (.046) SM91047EL 1620s
packaging specifcations SM91047EL flyback transformer specifcations are subject to change without notice. the device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time. users should verify actual device performance in their specifc applications. rev. 11/16 asia-pacifc: tel: +886-2 2562-4117 ? email: asiacus@bourns.com emea: tel: +36 88 520 390 ? email: eurocus@bourns.com the americas: tel: +1-951 781-5500 ? email: americus@bourns.com www.bourns.com dimensions: mm (inches) user direction of feed quantity: 180 pcs. per reel 44.00 (1.732) 24.00 (.945) end st ar t 4.00 (.157) b 44.00 +2/-0 (1.732 +.079/-0) 50.8 (1.969) max. 18 pcs. min. no component no component components 14 pcs. min. 0.75 (.030) r 0.20 0.05 (.008 .002) det ail b a 300.0 2.0 (11.811 .079) dia. 100.0 2.0 (3.937 .079) dia. 2.2 0.2 (.087 .008) dia. 13.2 0.2 (.520 .008) dia. 21.0 0.8 (.827 .031) det ail a
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