class 2 /3 transformer www.triadmagnetics.com phone : ( 951 ) 277 - 0757 fax : ( 951 ) 277 - 2757 460 harley knox blvd. perris, ca 92571 publish date: march 13 , 201 7 f 28 - 420 - c2 description: the f 28 - 420 - c2 is a single primary and dual secondary, split bobbin design which operates with an input of 115 v. the secondaries are 14v @ 0.42a each. they can be used independently (up to 300v difference between them) or in ser ies 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: 12.0 va 2. primary: 115v 3. secondaries: 14.0 v @ 0. 42 a ea ch 4. voltage regulation: 25% typ @ full load to no load 5. temperature rise: 25c typ 6. hipot tested 100% at 42 00 vrms pri to sec 7. hipot tested 100% at 216 0 vrms sec to sec 8 . recommended fuse (fuse on primary): cooper/bussman, type mdl, rated 500ma, 250v 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 we t transformer cul: file e65390, ul 5085 - 1 & 3 (1585) for canadian use (csa 22.2, no.66.3 - 06) max dimensions: units in inches. h w l a b c d e f 1.516 1.614 1.929 0.315 0.416 1.429 0.041 0.020 0.236 weight: 0.70 lbs schematic : ro hs compliance: as of manufacturing date february 2005, all standard products meet the requirements of 2011/65/eu, known as the rohs initiative. note: order 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 considered uncontrolled. please contact triad magnetics website for the most current version. for soldering and washing information please see http://www.triadmagneti cs.com/faq.html board layout 5 14v @ 0.42a 6 7 8 14v @ 0.42a 115v 50/60 hz 50/60 hz 1 4 1 4 l h w e a b a c 0.06" diameter hole d f 1 5 8 4
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