VPP28-720-B

Power Transformers Overview

The VPP28-720-B is a through-hole power transformer from the Triad Magnetics VPP series, rated at 20 VA. It features dual primary and dual secondary windings with solder pin termination for PCB mounting. Electrical specifications include a maximum power of 20.0 VA, input options of 115VAC parallel or 230VAC series at 50/60Hz, and an output of 28.0V CT at 0.72A in series configuration. The unit measures 1.88 inches in length, 2.25 inches in width, and 1.63 inches in height, with a typical weight of 408.233 grams.

Power Transformers Feature Summary

• Dual bobbin construction utilizing high-temperature materials that exceed UL flammability requirements to effectively reduce capacitance and eliminate the need for electrostatic shielding.
• Certified for safety compliance by UL, CSA, and VDE standards, ensuring suitability for international power supply applications.

Power Transformers Applications

• General purpose AC to DC power conversion circuits
• Industrial equipment power supplies
• Telecommunications infrastructure components

Power Transformers Procurement Notes

Verify the specific suffix against official manufacturer documentation to confirm exact electrical tolerances and packaging variations. Ensure the procurement channel provides valid certification copies for UL, CSA, and VDE compliance. Cross-reference the datasheet revision date to guarantee alignment with current manufacturing standards and material specifications.

Power Transformers Selection Notes

Select this component when a 20 VA rating and 28V CT output are required for through-hole PCB integration. Consider the physical dimensions of 1.88 x 2.25 x 1.63 inches for board layout constraints. Verify that the dual winding configuration supports the necessary input voltage flexibility for the target application environment.

Power Transformers Part Context

This transformer belongs to the VPP World Series line of PCB mount power transformers manufactured by Triad Magnetics. The series is characterized by robust construction and broad regulatory approvals, designed to meet the reliability demands of industrial and commercial electronic systems requiring efficient power isolation.

Power Transformers Replacement Considerations

Consult official Triad Magnetics substitution guides for verified equivalents. Do not assume functional interchangeability with other series without confirming matching electrical parameters and mechanical footprint compatibility.