PA1133NL

Overview

The PA1133NL is a surface-mount power transformer from the EP10 series, designed for Power over Ethernet applications. It features an inductance of 253.4µH with ±10% tolerance and a turns ratio of 1:0.083:0.208. Primary DC resistance is 0.42Ω maximum, while secondary resistances are 0.115Ω and 7.5mΩ maximum. The unit supports 7W power handling and includes 1500Vrms isolation between primary and secondary windings. Operating temperature ranges from -40°C to 125°C.

Feature Summary

• Integrated isolation and data interface functionality for PoE systems
• High-frequency wire-wound construction optimized for signal integrity
• Gull-wing surface mount package for automated assembly compatibility

Applications

• Power over Ethernet (PoE) network interfaces
• Isolated data communication circuits
• High-frequency power conversion modules

Procurement Notes

Verify component authenticity through authorized Pulse Electronics distributors or certified suppliers. Confirm RoHS3 compliance and MSL level 1 status during intake inspection. Cross-reference datasheet revision dates to ensure alignment with current manufacturing standards. Validate pinout configurations against schematic requirements prior to PCB integration.

Selection Notes

Select this component when designing PoE endpoints requiring integrated magnetic isolation. Ensure board space accommodates the 13.08mm x 15.24mm footprint and 11.45mm height. Verify thermal management capabilities meet the 125°C maximum operating temperature requirement. Confirm voltage isolation ratings satisfy system safety standards.

Part Context

This part belongs to the EP10 series of Pulse Electronics transformers. It serves as a specialized magnetic component for high-frequency applications. The series emphasizes compact form factors suitable for dense PCB layouts. It complements other PoE magnetics in the manufacturer's portfolio.

Replacement Considerations

PA1133NLT is a documented variant within the same product line. Verify packaging differences and specific electrical tolerances before substitution. Consult official documentation for any functional distinctions between suffixes.