164J28

Overview

The Hammond Manufacturing 164J28 is a low-voltage power transformer designed for printed circuit board (PCB) mounting. It features a single primary winding rated at 115V AC and dual secondary windings configured as 14V parallel or 28V series, delivering up to 36VA of power. The unit supports through-hole installation with PC pin termination. Key electrical specifications include a maximum current of 2.6A in parallel mode and 1.3A in series mode, with an isolation voltage of 2500Vrms. Physical dimensions are approximately 66.68mm in length, 55.55mm in width, and 39.70mm in height.

Feature Summary

• Dual secondary winding configuration allows flexible output selection between parallel and series modes.
• Low-profile design optimized for direct PCB mounting applications.
• Laminated core construction provides standard electromagnetic performance.
• Through-hole termination style ensures secure mechanical attachment to circuit boards.

Applications

• General-purpose low voltage power supply circuits
• Industrial control panel electronics
• Consumer appliance internal power stages
• Test equipment power distribution

Procurement Notes

Verify the specific datasheet version for the 164J28 to confirm compliance with current RoHS and REACH regulations. Ensure that the required insulation class and thermal rating align with the target application's environmental conditions. Cross-reference the physical footprint against the PCB layout to guarantee compatibility with the specified through-hole pin spacing and mounting constraints before finalizing procurement.

Selection Notes

Select this component when a 36VA capacity is required with a 115V primary input. Choose the 164J28 over other models if the application demands a specific 28V center-tapped or 14V parallel secondary output. Consider the physical dimensions and through-hole mounting requirements during the design phase to ensure adequate clearance and mechanical stability within the enclosure.

Part Context

This transformer belongs to Hammond Manufacturing's line of board-mount power transformers. It is part of a family of components designed for reliable AC-to-DC conversion stages in electronic systems. The 164J28 specifically addresses needs for moderate power levels with standard utility frequency inputs, serving as a foundational element in various commercial and industrial electronic assemblies.

Replacement Considerations

Public confirmed substitute part numbers: None identified in source data.