FS28-420

Power Transformers Overview

The Triad Magnetics FS28-420 is a power transformer designed for board mount applications. It features a laminated core and dual primary windings supporting 115V and 230V inputs in parallel configuration. The secondary output provides 28.0V center-tapped at 0.420A, delivering a 12 VA power rating. This component utilizes quick connect terminals for electrical connections and is certified under UL/cUL standards for industrial control environments.

Power Transformers Feature Summary

• Dual primary winding capability for flexible voltage input selection
• Center-tapped secondary output configuration
• Chassis or board mounting design options
• Certified safety compliance for industrial use

Power Transformers Applications

• Industrial control panels
• Electronic equipment power supplies
• General purpose transformers
• Class 2 power circuits

Power Transformers Procurement Notes

Verify the specific suffix to ensure correct termination style. The base model typically denotes chassis mount with quick connects, while variants like FS28-420-C2 indicate PCB mount configurations. Confirm that the required voltage ratings and current capacities align with the system design before ordering. Cross-reference part numbers carefully as minor suffix changes alter physical mounting and connection types significantly.

Power Transformers Selection Notes

Select this component when a 12 VA isolation transformer is required for low-power industrial applications. Ensure the input voltage matches the available supply (115V or 230V). Consider the FS28-420-C2 variant if printed circuit board mounting is preferred over chassis installation. Verify that the center-tapped secondary meets the rectification requirements of the downstream circuitry.

Power Transformers Part Context

This transformer belongs to the FS series from Triad Magnetics, which focuses on Class 2 power transformers. These units are engineered for compactness and efficiency in consumer and industrial electronics. The series offers various power ratings and mounting styles to accommodate diverse design constraints while maintaining strict safety certifications.

Power Transformers Replacement Considerations

The Triad Magnetics 162G28 is a confirmed cross-reference substitute for the FS28-420. When replacing, verify that the pinout and mounting hole dimensions are compatible with the existing assembly. Ensure the replacement unit maintains the same electrical specifications and safety approvals.