PA2291NLT

Overview

The PA2291NLT is a surface mount pulse transformer manufactured by Pulse Electronics. It features a dual primary plus auxiliary configuration with series primary side connections. The component operates at a primary frequency of 250 kHz and provides an inductance of 57.6 µH. Physical dimensions are approximately 21.84 mm in length, 29.21 mm in width, and 11.18 mm in height. It utilizes an EFD20 core structure.

Feature Summary

• Dual primary plus auxiliary winding configuration
• Surface mount design for automated assembly
• EFD20 core construction for efficient magnetic performance

Applications

• Forward converter power supply designs
• Isolated DC-DC conversion circuits
• Industrial power management systems

Procurement Notes

Verify the specific datasheet version to confirm electrical parameters and mechanical tolerances before integration. Ensure the supplier documentation matches the required AEC or industrial standards if applicable. Cross-reference pinout diagrams with the target PCB footprint to prevent installation errors during the procurement phase.

Selection Notes

Select this component when a forward topology requires galvanic isolation with a 250 kHz operating frequency. The EFD20 form factor supports compact board layouts. Confirm that the 57.6 µH inductance aligns with the controller's magnetizing current requirements and that the physical envelope fits within the designated area constraints.

Part Context

This part belongs to the Pulse Transformers category from Pulse Electronics Power. It is designed for high-frequency isolated power applications. The product status is listed as active, indicating ongoing manufacturing support. It serves as a critical isolation element in switch-mode power supplies requiring precise voltage transformation ratios.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Verify compatibility with existing magnetics specifications before considering alternative manufacturers.