CLASS 2/3 TRANSFORMER FS28-700-C2 Description: The FS28-700-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 14V 0.7A each. They can be used independently (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: 20.0VA 2. Primary: Series: 230V Parallel: 115V 3. Secondaries: 14.0V 0.7A each W 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 2160 VRMS sec to sec 8. Recommended fuse (fuse on primary): For 115V - Cooper/Bussman, Type MDL, rated 500mA, 250V. For 230V Littlefuse, Type 313, rated 250mA, 250V Construction: Three flange bobbin construction with primaries and secondaries wound side by E side for low capacitive coupling. UL Class F Insulation System (155C). Agency File: L UL: File E65390, UL 5085-1 & 3 (1585), Class 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 H 12 3 4 Dimensions: Units in inches. H W L A B C D E F D 1.437 1.875 2.25 0.300 0.400 1.600 0.041 0.020 0.234 F Weight: 0.80 lbs A A Schematic: 5 8 PARALLEL SERIES 1 5 1 1 14V 0.7A B 2 2 2 6 115V 230V 50/60Hz 50/60Hz 3 3 7 3 C 14V 0.7A 4 4 8 4 RoHS Compliance: As of manufacturing date February 2005, all standard products meet 1 4 the requirements of 2011/65/EU, known as the RoHS initiative. 0.06 DIAMETER Note: Order and shipping documentation may have a -B suffix this indicates Bulk HOLE packaging but does not show on the actual part number marked on the transformer. Board Layout * Upon printing, this document is considered uncontrolled. Please contact Triad Magnetics website for the most current version. www.TriadMagnetics.com 460 Harley Knox Blvd. Phone: (951) 277-0757 Publish Date: December 4, 2013 Perris, CA 92571 Fax: (951) 277-2757