161G20

Overview

The Hammond Manufacturing 161G20 is a low voltage power transformer designed for PCB mounting. It features a single primary winding rated for 115 VAC input and a dual secondary winding configuration providing 20 VAC center-tapped output. The unit has a power rating of 10 VA with a maximum secondary current of 500 mA. Constructed as an open-type laminated transformer, it utilizes through-hole termination for secure board integration.

Feature Summary

• Dual secondary winding architecture enables center-tapped output configurations
• Open construction design facilitates direct printed circuit board mounting
• Laminated core structure supports stable low voltage power conversion

Applications

• Low voltage AC power supply circuits
• Industrial control panel power distribution
• Electronic equipment requiring isolated secondary voltages

Procurement Notes

Verify the specific secondary current requirement against the datasheet specification of 500 mA to ensure adequate capacity for the target application load. Confirm that the 115 VAC primary voltage aligns with the available supply source. Ensure the PCB layout accommodates the through-hole pin spacing and physical dimensions of the chassis mount style component before finalizing procurement orders.

Selection Notes

Select this model when a compact, board-mounted solution is required for stepping down mains voltage to a lower AC level. The dual secondary winding provides flexibility for creating split-rail or center-tapped references. Consider the 10 VA power limit and thermal dissipation characteristics inherent to the open frame design during the initial circuit topology phase.

Part Context

This component belongs to the 161 series of power transformers manufactured by Hammond Manufacturing. The series focuses on low voltage applications suitable for direct integration into electronic assemblies. The 161G20 variant specifically addresses needs for 115 VAC input systems requiring a reliable 20 VAC center-tapped output derived from a laminated core construction.

Replacement Considerations

Cross-reference alternative part numbers within the same manufacturer series to verify identical electrical ratings and mechanical footprint compatibility. Ensure any substitute maintains the dual secondary winding configuration and through-hole termination style to preserve existing board design integrity.