VPP28-090

Power Transformers Overview

The VPP28-090 is a laminated core power transformer manufactured by Triad Magnetics, designed for through-hole mounting. It features dual primary windings rated for 115V and 230V operation in parallel configuration. The secondary side provides dual windings supporting parallel connection at 9V or series connection at 18V. The unit has a maximum power rating of 2.5VA. Electrical specifications include a maximum current of 140mA per winding in parallel mode and 70mA in series mode. The device offers an isolation voltage of 4000Vrms.

Power Transformers Feature Summary

• Dual primary winding design allows compatibility with both 115V and 230V input sources
• Flexible secondary configuration supports either parallel 9V or series 18V output connections
• Laminated core construction ensures reliable power transformation for general applications

Power Transformers Applications

• Industrial control equipment requiring isolated AC power
• Telecommunications infrastructure components
• General purpose electronic instrumentation

Power Transformers Procurement Notes

Verify the specific datasheet version to confirm compliance with current safety standards such as UL, CSA, and CUL. Ensure that the required insulation class matches the thermal environment of the target application. Confirm mechanical dimensions against available PCB space constraints before finalizing component selection.

Power Transformers Selection Notes

Select this model when a compact 2.5VA transformer is needed for standard line voltages. Consider the physical size and lead spacing if board layout is constrained. Evaluate the thermal performance requirements to ensure the laminated core can dissipate heat effectively within the intended enclosure design parameters.

Power Transformers Part Context

This component belongs to the PC Mount World Series from Triad Magnetics. It is part of a broader family of laminated power transformers designed for through-hole installation. The series typically includes various power ratings and voltage configurations to support diverse industrial and commercial power supply needs.

Power Transformers Replacement Considerations

Consult official manufacturer documentation for direct cross-reference part numbers. Verify that any substitute component matches the electrical ratings, physical footprint, and safety certifications required for the existing design.