LG2P109N LF(2.5MM)

Overview

The LG2P109N LF(2.5MM) is a LAN 1000 Base-T pulse transformer manufactured by Pulse Electronics, designed for Gigabit Ethernet applications. It features a 350µH inductance with a 1:1CT turns ratio for both transmitter and receiver sections. The component utilizes a through-hole mounting style and measures 32.50mm in length, 8.50mm in width, and up to 11.60mm in height. It operates within a temperature range of 0°C to 70°C and complies with RoHS3 standards.

Feature Summary

• Supports 1000 Base-T Gigabit Ethernet transmission standards
• Integrated dual-port design with separate transmitter and receiver circuits
• Through-hole package suitable for standard PCB assembly processes

Applications

• Gigabit Ethernet network interface cards
• Ethernet switch port circuits
• Computer motherboard LAN controllers

Procurement Notes

Verify the specific suffix designation during procurement, as variations such as (2.5MM) may indicate distinct physical dimensions or packaging configurations compared to standard variants. Confirm that the required inductance and turns ratio align with the target circuit design specifications before finalizing orders.

Selection Notes

Select this component when designing systems requiring integrated pulse transformers for 1000 Base-T interfaces. Ensure the through-hole form factor fits the mechanical constraints of the printed circuit board layout. Verify compatibility with the specific voltage and current requirements of the connected PHY transceiver.

Part Context

This part belongs to the LG2P series of LAN pulse transformers from Pulse Electronics. It serves as a critical passive component for signal coupling and impedance matching in high-speed data communication networks. The series includes various pinout and dimension options to accommodate different board space requirements.

Replacement Considerations

LG2P109RN LF and LG2P109N LF are documented parameter-equivalent alternatives. Verify mechanical fit and electrical equivalence before substitution.