PA2649NL

Overview

The PA2649NL is a surface-mount pulse transformer manufactured by Pulse Electronics, designed for forward converter applications. It utilizes an EP13 core configuration and supports input voltage ranges of 33V to 57V. The component features a 60-quadrant winding structure to ensure precise magnetic coupling and signal integrity in high-frequency switching circuits. This transformer is engineered for board-mounted integration within power supply architectures requiring reliable isolation and efficient energy transfer.

Feature Summary

• Designed specifically for forward converter topologies
• EP13 core construction for compact board mounting
• 60-quadrant winding architecture for signal precision

Applications

• Forward converter power supplies
• Board-mounted isolated power stages
• High-frequency switching circuit isolation

Procurement Notes

Verify the specific datasheet version and mechanical drawing revisions prior to finalizing design-in decisions. Confirm that the EP13 package dimensions and pinout configurations align with the target PCB footprint requirements. Ensure compliance with RoHS3 specifications and check for any recent product change notifications regarding material composition or manufacturing location updates.

Selection Notes

Select this component when a forward topology requires a surface-mount solution with an EP13 form factor. Evaluate the 33V-57V input range compatibility against the system's primary side voltage constraints. Consider the 60-quadrant winding benefits for applications demanding tight magnetic coupling and reduced leakage inductance compared to standard transformer designs.

Part Context

This part belongs to Pulse Electronics' portfolio of high-frequency wire wound transformers. It serves as a specialized passive component for isolated DC-DC conversion systems. The designation indicates a specific winding configuration optimized for forward converters, distinguishing it from flyback or push-pull variants within the same manufacturer's catalog.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.