161H40

Overview

The Hammond Manufacturing 161H40 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 40 VAC center-tapped output. The unit has a power rating of 24 VA with a secondary current capacity of 600 mA. It utilizes through-hole solder pin termination and operates at 60 Hz. The physical dimensions are 2.25 inches in length, 1.63 inches in width, and 1.38 inches in height. The maximum operating temperature is +130°C, while the minimum is 0°C.

Feature Summary

• Dual secondary winding design enabling versatile voltage configurations
• Through-hole solder pin termination for secure PCB integration
• Compact board-mount form factor suitable for space-constrained applications

Applications

• Low voltage electronic circuit power supplies
• Industrial control panel instrumentation
• General purpose AC to AC signal isolation

Procurement Notes

Verify that the specific application requires a 115V primary input and a 40VCT secondary output to ensure compatibility. Confirm that the PCB layout supports through-hole solder pins and accommodates the specified physical footprint of 2.25 x 1.63 inches. Ensure the thermal environment remains within the 0°C to +130°C operating range. Check that the required secondary current does not exceed 600 mA under load conditions.

Selection Notes

Select this component when a compact, board-mounted solution is needed for stepping down 115V AC to a lower voltage. The dual secondary winding allows for flexible connection options compared to single secondary variants. Consider the 24 VA power rating to ensure sufficient capacity for the target load. Compare against other models in the 161 series if different voltage or current ratings are required.

Part Context

This transformer belongs to the Hammond Manufacturing 161 series, which specializes in low voltage PCB mount transformers. The series offers various combinations of primary and secondary voltages to suit different electronic designs. The 161H40 specifically addresses applications requiring a 40VCT output from a standard 115VAC source.

Replacement Considerations

Consult official Hammond Manufacturing documentation for direct cross-reference part numbers. Verify electrical equivalence regarding voltage, current, and VA rating before substitution.