PA1284NL

Overview

The PA1284NL is a surface mount pulse transformer from the EP10 series by Pulse Electronics. It features an inductance of 155µH and a turns ratio of 1:0.682:0.682. Designed for isolated data interfaces, it supports Power over Ethernet applications with a power rating of 7W at 12V. The component operates within a temperature range of -40°C to 125°C. Its physical dimensions are 13.08mm x 15.24mm x 11.45mm maximum height. It complies with RoHS3 standards and has a Moisture Sensitivity Level of 1.

Feature Summary

• Provides electrical isolation and data signal transmission for network interfaces
• Supports Power over Ethernet (PoE) functionality with integrated power handling
• Utilizes an EP10 encapsulated core structure for compact surface mount integration

Applications

• Ethernet port interface circuits
• Power over Ethernet (PoE) powered devices
• Network communication hardware

Procurement Notes

Verify the specific suffix against the datasheet; the NL variant denotes lead-free construction. Confirm the package type matches the required PCB footprint, as the T suffix indicates tape-and-reel packaging while the NL may differ in standard packaging formats. Ensure the manufacturer part number aligns exactly with the design specification to avoid pinout mismatches in PoE implementations.

Selection Notes

Select this component when designing for 10/100BASE-TX Ethernet applications requiring integrated PoE support. The 155µH inductance value is critical for common mode choke performance in transformer-coupled lines. Consider the EP10 form factor for space-constrained layouts where high-temperature operation up to 125°C is necessary for industrial or outdoor networking equipment.

Part Context

This part belongs to the Pulse Electronics EP10 series of surface mount transformers. These components are engineered specifically for Ethernet connectivity solutions. The series offers various inductance values and winding configurations to suit different network speeds and power delivery requirements, maintaining consistent mechanical profiles for automated assembly processes.

Replacement Considerations

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