ST7-24B55

Power Transformers Overview

The ST7-24B55 is a laminated core power transformer from Pulse Electronics, designed for board mount applications. It features a split bobbin construction with horizontal plug-in mounting. The primary voltage rating is 115 VAC. The secondary configuration offers parallel connection for 12V at 3A or series connection for 24V at 1.5A. The unit operates at low frequency and utilizes an open-style design suitable for general power conversion tasks.

Power Transformers Feature Summary

• Laminated core construction for efficient magnetic flux guidance
• Split bobbin design facilitating horizontal plug-in installation
• Dual secondary output options supporting parallel or series wiring configurations

Power Transformers Applications

• Industrial control panel power supplies
• General purpose AC to DC rectifier input stages
• Equipment requiring isolated low voltage DC power

Power Transformers Procurement Notes

Verify the specific secondary winding configuration required for your circuit design before ordering. Confirm that the 115VAC primary rating matches your local mains supply standards. Ensure the PCB footprint accommodates the horizontal plug-in form factor and check thermal requirements for the intended operating environment.

Power Transformers Selection Notes

Select this component when a robust, high-current power transformer is needed for standard industrial voltages. The split bobbin architecture allows for flexible secondary voltage selection between 12V and 24V depending on load current demands. Consider the physical dimensions and mounting style to ensure compatibility with existing chassis or PCB layouts.

Power Transformers Part Context

This part belongs to the ST7 series of low-frequency open-style laminated transformers. The series is characterized by its durability and suitability for high-power applications where reliable isolation is critical. The ST7-24B55 specifically addresses needs for versatile secondary voltage outputs within a single package.

Power Transformers Replacement Considerations

Direct substitutes must match the 115VAC primary rating and the specific 12V/3A or 24V/1.5A secondary capabilities. Verify mechanical compatibility with the horizontal plug-in mounting style and ensure the replacement maintains the same laminated core construction for equivalent performance.