class 2 transformer www.triadmagnetics.com phone 951-277-0757 fax 951-277-2757 460 harley knox blvd. perris, california 92571 publish date: december 4, 2013 F28-85-C2 description: the f28-085-c2 is a single primary and dual secondary, split bobbin design which operates with an input of 115v. the output voltage will be either 28.0v with a center-tap under a 0.085a load with the secondaries wired in series, or 14.0v under a 0.17a load with the secondaries wired in parallel. the split bobbin design eliminates the need for costly electrostatic shielding. electrical specifications (@25c) 1. maximum power: 2.5va 2. primary: 115v 3. secondary: series: 28.0v ct@ 0.085a parallel: 14.0v @ 0.17a 4. voltage regulation: 25% typ @ full load to no load 5. temperature rise: 25c typ 6. hipot tested 100% at 2500 vrms 7. inherently limited. no fusing required. construction: three flange bobbin construction with primaries and secondaries wound side by side for low capacitive coupling. ul class f insulation system (155c). agency file: ul: file e65390, ul 5085-3 (1585), class 2 not wet / class 3 wet transformers cul: file e65390, ul 5085-3 (1585) for canadian use (csa 22.2, no.66.3-06) 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: 1 4 8 7 6 5 115v 50/60hz rohs compliance: as of manufacturing date february 2005, all standard products meet the requirements of 2002/95/ec, known as the rohs initiative. as of april 7, 2008, ul standards 506 and 1585 will be migrated to ul 5085-2 and 5085-3, respectively. * upon printing, this document is considered ?uncontrolled?. please contact triad magnetics? website for the most current version. 1 4 l h w e a b a c 0.06" diameter hole d f 1 58 4 board layout
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