160D28

Overview

The Hammond Manufacturing 160D28 is a low voltage power transformer designed for PCB mounting. It features dual primary windings rated for 115 VAC and 230 VAC operation at 50 Hz or 60 Hz frequencies. The secondary output provides 28 VAC center-tapped configuration with a current rating of 30 mA, delivering a total power capacity of 1 VA. The unit utilizes solder pin termination for secure board integration. Physical dimensions are 1.38 inches in length, 1 inch in width, and 0.83 inches in height. It operates within a temperature range of 0°C to +130°C.

Feature Summary

• Dual primary winding capability supports both 115 VAC and 230 VAC input voltages
• Center-tapped secondary output design for balanced low voltage applications
• Through-hole solder pin termination ensures stable PCB integration

Applications

• Low voltage control circuits requiring isolated power sources
• Industrial equipment utilizing standard AC line voltages
• Electronic assemblies needing compact step-down transformation

Procurement Notes

Verify the specific part number suffix against official Hammond Manufacturing documentation to confirm exact electrical ratings and physical specifications. Ensure compatibility with existing PCB footprint and thermal management requirements before procurement. Confirm regulatory compliance status such as RoHS directives matches project constraints. Cross-reference datasheet revision dates to ensure access to the most current technical parameters and safety certifications.

Selection Notes

Select this component when a compact, board-mount solution is required for stepping down standard mains voltages to low voltage levels. The dual primary winding allows flexibility for global deployment without changing hardware. Verify that the 1 VA power rating meets the load requirements of the target circuit. Consider the operating temperature range and physical dimensions to ensure fit within the designated enclosure space.

Part Context

This transformer belongs to the Hammond 160 series, which focuses on low voltage power conversion for electronic equipment. The series offers various voltage configurations tailored for different industrial and commercial applications. These components are characterized by their robust construction and suitability for direct PCB mounting, providing reliable isolation between primary and secondary circuits.

Replacement Considerations

Consult official Hammond Manufacturing substitution guides for verified equivalent models. Ensure any replacement maintains identical primary and secondary voltage ratings, current capacity, and physical mounting dimensions. Verify that alternative components meet the same thermal and regulatory standards.