F-257U

P OWE R T RAN S FO R M E R Chassis Mount: Single Secondary F-257U Electrical Specifications (@25C) 1. Maximum Power: 120.0 VA 2. Primary: 115V 50/60 Hz 3. Secondary: 20.0VCT @ 6.0 Amps 4. Voltage Regulation: 10 % TYP @ full load to no load 5. Temperature Rise: 35C TYP (45C MAX allowed) Description: The F-257U is part of a series which has a long history of reliable service in the field, made from a proven design and constructed with UL recognized materials. Construction: Wound on a single channel nylon bobbin. Materials are UL recognized, Class B (130º C) rated. BLK Safety: These products are 100% hipot tested with an insulation of 1500V between primary and secondary windings as well as between the primary / secondary windings and the core. Dimensions: BLK .203 X .375 Units: In inches D A B C D E 3.750 3.375 3.375 2.50 2.625 SLOTS 4PLACES C Lead length: 7.0 inches + 1 inch Weight: 5.70 lbs Schematic: BLK G RN G RN/YEL E G RN BLK GR N Primary: Black to Black Secondary: Green to Green GR N/YEL A GR N RoHS Compliance: As of manufacturing date February 2016, all standard products meet the requirements of 2015/863/EU, known as the RoHS 3 initiative. B * Upon printing, this document is considered “uncontrolled”. Please contact Triad Magnetics’ website for the most current version. Web: www.TriadMagnetics.com Phone 951-277-0757 Fax 951-277-2757 460 Harley Knox Blvd. Perris, California 92571 Publish Date: May 21, 2019