183F28

Power Transformers Overview

The Hammond Manufacturing 183F28 is a low voltage PCB mount power transformer from the 183 Series, rated at 5VA. It features a laminated core and dual primary windings supporting 115V and 230V AC input in parallel configuration. The secondary output provides 28V DC equivalent with a center tap, delivering 180mA in series mode or 360mA in parallel mode. It utilizes PC pin termination for through-hole installation. Key electrical specifications include 4000Vrms isolation voltage and RoHS3 compliance.

Power Transformers Feature Summary

• Dual primary winding design enables flexible operation across 115V and 230V AC input voltages.
• Center-tapped secondary output supports both series and parallel current configurations.
• Laminated core construction ensures efficient magnetic coupling for low voltage applications.

Power Transformers Applications

• Low voltage power supply circuits requiring PCB mounting
• Industrial control systems utilizing 115V or 230V AC mains
• Equipment needing isolated power conversion with center-tapped outputs

Power Transformers Procurement Notes

Verify that the specific variant matches the required mounting style and electrical ratings. Confirm that the dual primary winding configuration aligns with the target input voltage. Ensure compatibility with the intended secondary load current requirements before finalizing procurement.

Power Transformers Selection Notes

Select this component when a 5VA laminated core transformer is required for PCB integration. Consider the 183F28-BULK variant if bulk packaging is preferred over standard retail units. Evaluate the 14A-5.0R-28 as an alternative source if supply constraints exist for the Hammond part number.

Power Transformers Part Context

This transformer belongs to the Hammond 183 Series, designed for general-purpose power transformation in compact electronic assemblies. It serves as a direct replacement for legacy open-frame transformers requiring similar electrical characteristics and physical footprint constraints in industrial and commercial equipment.

Power Transformers Replacement Considerations

The Signal Transformer part number 14A-5.0R-28 is documented as a similar substitute. Verify mechanical dimensions and pinout compatibility before substitution to ensure proper fit within the existing chassis or PCB layout.

Power Transformers FAQ

What is the maximum isolation voltage of the 183F28?

The transformer provides 4000Vrms isolation voltage between primary and secondary windings.

How does the secondary winding configuration affect current rating?

In series mode, the secondary delivers 180mA. In parallel mode, the current capacity increases to 360mA while maintaining the same voltage structure.