F20-055

Overview

The Triad Magnetics F20-055 is a laminated core power transformer designed for through-hole mounting. It features a single primary winding rated at 115V and dual secondary windings offering parallel 10V or series 20V configurations. The unit provides a maximum power rating of 1.1VA, with current outputs of 110mA in parallel mode and 55mA in series mode. Operating at 50Hz or 60Hz, it ensures electrical isolation of 2500Vrms. The component measures 34.93mm in length, 28.58mm in width, and has a maximum installation height of 23.80mm.

Feature Summary

• Dual secondary windings support flexible voltage configuration via parallel or series connections.
• Laminated core construction provides standard electromagnetic performance for general power applications.
• High isolation rating of 2500Vrms ensures safety compliance between primary and secondary circuits.

Applications

• Low-power electronic equipment requiring isolated AC power sources
• Class 2/3 compliant circuit designs
• General-purpose control transformers

Procurement Notes

Verify the specific ordering suffix to confirm exact secondary voltage configuration and insulation class requirements. Ensure the selected variant matches the intended parallel or series secondary connection needs. Confirm RoHS3 compliance status if environmental regulations apply to the final assembly. Cross-reference datasheet specifications against system voltage tolerances before procurement.

Selection Notes

Select this component when a 1.1VA capacity is sufficient for the load requirements. Choose based on the need for 115V primary input and either 10V parallel or 20V series secondary output. Consider the through-hole mounting style and physical dimensions (34.93mm x 28.58mm) for PCB layout constraints. Verify that the 2500Vrms isolation level meets safety standards for the application environment.

Part Context

This transformer belongs to the Split Pack™ series by Triad Magnetics, categorized under Class 2/3 power transformers. The F-series designation indicates specific form factor and performance characteristics within the manufacturer's portfolio. It utilizes a split bobbin design to enhance isolation and reduce inter-winding capacitance compared to standard laminated cores.

Replacement Considerations

Hammond Manufacturing part number 164D20 is documented as a substitute option. Verify pinout compatibility and electrical parameter alignment before substitution.