164F56

Overview

The Hammond Manufacturing 164F56 is a low voltage power transformer designed for printed circuit board mounting. It features a laminated core construction with a single primary winding rated at 115VAC and dual secondary windings providing 28VAC in parallel or 56VAC in series configurations. The unit delivers a maximum power rating of 6VA, supporting currents of 220mA per secondary leg or 110mA in series mode. Physical dimensions are 41.28mm in length, 33.32mm in width, and 33.32mm in height. It utilizes through-hole solder pin termination and operates within a temperature range of 0°C to +130°C.

Feature Summary

• Dual secondary winding configuration allows flexible output selection between parallel 28VAC and series 56VAC modes.
• Low profile design optimized for direct printed circuit board mounting applications.
• Laminated core construction provides standard isolation characteristics for power conversion tasks.

Applications

• Low voltage AC power supply circuits
• Control panel instrumentation power
• Industrial equipment internal power distribution

Procurement Notes

Verify the specific secondary configuration required for the target application, as the component supports both parallel and series secondary connections. Confirm that the PCB layout accommodates the through-hole pin spacing and physical footprint dimensions. Ensure the operating environment remains within the specified thermal limits to maintain performance integrity.

Selection Notes

Select this model when a compact, board-mount solution is needed for stepping down line voltage to lower AC levels. The dual secondary option provides design flexibility for different voltage requirements without changing the physical component. Consider the 6VA power limit when calculating load requirements to ensure adequate capacity for the intended circuit.

Part Context

This component belongs to the Hammond 164 series of low voltage transformers. These units are characterized by their small form factor and suitability for space-constrained electronic assemblies. The series offers various voltage and power combinations tailored for general-purpose power transformation in industrial and commercial electronics.

Replacement Considerations

Cross-reference part numbers such as HM4316-ND or 3937-164F56 which represent the same electrical specifications and physical form factor. Verify pinout compatibility and mounting hole alignment before substituting to ensure mechanical fit on existing PCBs.