class 2 /3 transformer www.triadmagnetics.com phone : ( 951 ) 277 - 0757 fax : ( 951 ) 277 - 2757 460 harley knox blvd. perris, ca 92571 publish date: january 31, 2014 fs 20 - 12 0 - c2 description: the fs 20 - 12 0 - c2 is a series/parallel primary and dual secondary, split bobbin design which operates with either a parallel input of 115v or a series input of 230v. the secondaries are 10v @ 0.12a each. they can be used independ ently (up to 300v difference between them) or in series for double the voltage or in parallel for double the current. the split bobbin design eliminates the need for costly electrostatic shielding. electrical specifications (@25c) 1. maximum power: 2.5va 2. primary : series: 230v ; parallel: 115v 3. secondaries: 10.0 v @ 0. 12 a each 4. voltage regulation: 25% typ @ full load to no load 5. temperature rise: 25c typ 6. hipot tested 100% at 4200 vrms pri to sec 7. hipot tested 100% at 216 0 vrms sec to sec 8 . in herently limited. no fusing required. construction: three flange bobbin const ruction with primaries and secondaries wound side by sid e for low capacitive coupling. ul class f insulation system (155c). agency file: ul: file e65390, ul 5085 - 1 & 3 (1585) , cla ss 2 not wet / class 3 wet transformer cul: file e65390, ul 5085 - 1 & 3 (1585) for canadian use (csa 22.2, no.66.3 - 06) tuv certificate no.: r72120839, en61558, safety isolating xfmr, general use dimensions: units in inches. h w l a b c d e f 1.187 1.125 1.375 0.250 0.250 1.200 0.041 0.020 0.234 weight: 0.25 lbs schematic : rohs compliance: as of manufacturing date february 2005, all standard products meet the requirements of 2011/65/eu, known as the rohs initiative. note: o rder and shipping documentation may have a - b suffix; this indicates bulk packaging but does not show on the actual part number marked on the transformer . * upon printing, this document is co nsidered uncontrolled. please contact triad magnetics websi te for the most current version. board layout 5 parallel 4 3 2 1 10v @ 0.12a 4 3 2 1 series 115 v 50/60hz 6 7 8 1 2 3 4 10v @ 0.12a 230 v 50/60hz 1 2 3 4 l h w e a b a c 0.06" diameter hole d f 1 5 8 4
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