161K12

Overview

The Hammond Manufacturing 161K12 is a low voltage power transformer designed for printed circuit board (PCB) mounting. It features a single primary winding rated at 115 VAC and dual secondary windings providing 12.6 VAC center-tapped at 800 mA, along with a separate 6.3 VAC output at 1.6 A. The unit has a total power rating of 10 VA. Physical dimensions are 1.44 inches in length, 1.94 inches in width, and 1.69 inches in height. It utilizes through-hole termination for secure board integration.

Feature Summary

• Dual secondary winding configuration supporting multiple voltage outputs
• Center-tapped secondary design for rectification applications
• Through-hole PCB mounting style for stable mechanical attachment

Applications

• Low voltage AC power supply circuits
• Electronic control systems requiring isolated power
• Signal processing equipment power stages

Procurement Notes

Verify the specific secondary current ratings against your load requirements to ensure the 800 mA and 1.6 A limits are not exceeded. Confirm that the 115 VAC primary input matches your system voltage. Ensure the PCB layout accommodates the through-hole pin spacing and physical footprint of 1.44 x 1.94 inches. Check for any regional compliance certifications required for your deployment environment.

Selection Notes

Select this component when a compact, board-mount solution is needed for dual-output low voltage conversion. Compare against other models in the 161 series if different voltage combinations or higher power ratings are required. Consider thermal management needs as the small form factor may limit heat dissipation under full load conditions compared to chassis-mounted alternatives.

Part Context

This transformer belongs to Hammond Manufacturing's line of low voltage PCB mount transformers. These components are engineered for industrial and commercial electronics where space constraints necessitate direct board integration. The series provides reliable isolation between primary mains voltage and secondary low voltage outputs for sensitive electronic loads.

Replacement Considerations

Direct substitutes within the same series include the 161G28, which offers different secondary voltage and current specifications. Verify that any replacement maintains the same 115 VAC primary rating and compatible physical mounting dimensions to fit existing PCB footprints without modification.