161G40

Overview

The Hammond Manufacturing 161G40 is a low voltage power transformer designed for PCB mounting. It features a single primary winding rated at 115 VAC and a dual secondary winding configuration providing 28 VAC center-tapped output. The unit has a power rating of 10 VA with a secondary current capacity of 360 mA. It utilizes through-hole solder pin termination and operates within a temperature range of 0°C to +130°C at 60 Hz.

Feature Summary

• Dual secondary winding architecture enabling center-tapped output configurations
• Through-hole solder pin termination for direct printed circuit board integration
• High thermal tolerance supporting operation up to +130°C

Applications

• Low voltage control circuits requiring isolated power sources
• Industrial equipment utilizing standard 115V AC input lines
• Electronic assemblies needing compact, board-mounted step-down transformation

Procurement Notes

Verify the specific secondary voltage and current requirements against the 28 VAC CT @ 360 mA specification before ordering. Confirm that the through-hole footprint dimensions align with the target PCB layout. Ensure the operating environment remains within the specified thermal limits to maintain component integrity and performance standards.

Selection Notes

Select this model when a 10 VA capacity is sufficient for the load. The 115V primary rating suits regions with compatible mains frequencies. Consider the physical dimensions of 1.44 x 1.94 x 1.69 inches for spatial constraints. Verify that the center-tapped secondary meets the circuit design needs compared to non-tapped alternatives in the series.

Part Context

This component belongs to the Hammond 161 series of low voltage power transformers. The series offers various power ratings and voltage combinations tailored for different industrial and commercial applications. The 161G40 specifically addresses needs for moderate power isolation with a 28V center-tapped output.

Replacement Considerations

The 161E40 provides a similar form factor but delivers 40V CT at 30mA. The 161H40 offers higher capacity with 40V CT at 600mA. Evaluate these variants if the required voltage or current specifications differ from the 28V/360mA parameters of the 161G40.