161D24

Overview

The Hammond Manufacturing 161D24 is a low voltage power transformer designed for printed circuit board (PCB) mounting. It features a single primary winding rated at 115 VAC and a dual secondary winding configuration providing 24 VAC center-tapped output. The unit has a power rating of 1 VA, with secondary current ratings of 70 mA in parallel mode or 35 mA in series mode. Operating at 60 Hz, it utilizes solder pin termination for through-hole installation.

Feature Summary

• Vertical mount split bobbin design
• Single primary winding construction
• Dual secondary winding capability

Applications

• Low voltage PCB mounting applications
• Electronic equipment requiring isolated AC power
• Control circuits utilizing center-tapped secondary outputs

Procurement Notes

Verify the specific datasheet version to confirm electrical tolerances and insulation class requirements for your application. Ensure that the 115 VAC primary input matches your system voltage and that the 60 Hz operating frequency is compatible with your power source. Confirm that the through-hole solder pin termination aligns with your PCB layout and assembly processes before finalizing procurement.

Selection Notes

Select this component when a compact, low-power transformer is required for direct PCB integration. The 1 VA rating suits small signal or control circuits rather than high-power loads. Consider the split bobbin design for improved isolation characteristics. Verify that the physical dimensions fit within the available space on the target circuit board and that the thermal performance meets the operational temperature range requirements.

Part Context

This part belongs to the Hammond 161 Series, which offers multiple voltages and VA sizes. The 161D24 specifically addresses needs for 24 VAC center-tapped outputs in a 1 VA form factor. It is distinct from higher power variants like the 161H40 or different voltage options within the same series, serving niche applications requiring precise low-voltage transformation.

Replacement Considerations

Direct substitutes include other Hammond 161 series transformers with identical 1 VA ratings and 24 VAC CT secondary specifications. Cross-reference with distributors for equivalent parts from other manufacturers offering similar through-hole low voltage PCB mount transformers with matching primary and secondary electrical characteristics.