161H56

Overview

The Hammond Manufacturing 161H56 is a low voltage power transformer designed for printed circuit board mounting. It features a single primary winding rated at 115 VAC and a dual secondary winding configuration providing 56 VAC center-tapped output. The unit delivers a power rating of 24 VA with a secondary current capacity of 420 mA. Constructed for through-hole installation via solder pins, the transformer operates within a temperature range of 0°C to +130°C at a frequency of 60 Hz. Its physical dimensions are 2.25 inches in length, 1.63 inches in width, and 1.38 inches in height.

Feature Summary

• Dual secondary winding architecture enables center-tapped voltage configurations for rectification circuits.
• Through-hole solder pin termination facilitates direct integration onto printed circuit boards.
• Low voltage design ensures safe operation in consumer and industrial electronic applications.

Applications

• Power supply units requiring AC-to-DC conversion stages
• Audio equipment utilizing center-tapped transformer inputs
• Industrial control systems with low voltage power distribution needs

Procurement Notes

Verify that the specific part number matches the required electrical specifications, particularly the 56V CT secondary rating and 420mA current limit. Confirm compliance with RoHS directives if environmental regulations apply to the end product. Ensure the through-hole footprint aligns with the PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when a 24 VA power rating is sufficient for the load requirements. The 115V primary input must match the available line voltage. Consider the physical size constraints relative to the enclosure space. Verify that the operating temperature range meets the environmental conditions of the intended application site.

Part Context

This transformer belongs to the Hammond 161 series, which comprises various low voltage PCB mount power transformers. The series offers different secondary voltage options while maintaining consistent primary input and power ratings. This specific model provides a 56V center-tapped output, distinguishing it from other variants like the 161H40 or 161H12.

Replacement Considerations

Direct substitutes include Hammond 161H40 and 161H12, provided the differing secondary voltages (40V CT and 12V respectively) are acceptable for the circuit design. Cross-reference pinout compatibility and mechanical dimensions to ensure interchangeability without PCB modifications.