PA1837NL

Overview

The PA1837NL is a surface-mount flyback transformer manufactured by Pulse Electronics, designed for compact switch-mode power supply applications. It utilizes an EFD20 core configuration to support efficient energy transfer in high-density designs. The component operates within a voltage range of 9V to 36V and delivers a maximum power capacity of 36W. Key electrical specifications include an inductance value of 4.5 µH. The device is engineered for robust performance across a wide thermal environment, supporting minimum operating temperatures of -40°C and maximum operating temperatures up to +125°C.

Feature Summary

• Surface mount construction optimized for automated assembly processes
• EFD20 core geometry enabling compact footprint design
• High-temperature capability suitable for demanding thermal environments

Applications

• Compact switch-mode power supplies
• Flyback converter circuits
• Board-mounted power conversion systems

Procurement Notes

Verify the specific datasheet version and manufacturer documentation to confirm current technical specifications and compliance status. Ensure that the intended application aligns with the documented electrical ratings and thermal limits provided by Pulse Electronics. Cross-reference part numbers carefully to avoid substitution errors.

Selection Notes

Select this component when a surface-mount flyback transformer with EFD20 core geometry is required for space-constrained designs. Consider the 4.5 µH inductance and 36W power rating against circuit requirements. Verify compatibility with the target operating temperature range of -40°C to +125°C before integration.

Part Context

This component belongs to the Pulse Electronics line of board-mount power transformers. It is specifically categorized as a flyback transformer utilizing SMD technology. The EFD20 package style distinguishes it from other core geometries offered by the manufacturer, targeting applications requiring specific magnetic characteristics and physical dimensions.

Replacement Considerations

Consult official manufacturer substitution guides or equivalent part lists for verified alternatives. Do not assume functional equivalence based solely on similar inductance values or package types without confirming detailed electrical and mechanical specifications.