Description & Features 

The 749020020 WE-LAN is a high-performance dual-port Ethernet isolation transformer module designed specifically for Gigabit networks (10/100/1000Base-T). It provides excellent signal integrity, EMI suppression, and galvanic isolation — making it ideal for networking devices such as switches, routers, media converters, IP cameras, and NICs.

Key features include:

• Dual-Port Design — Two separate Ethernet channels in a single SMT module, reducing board footprint and BOM complexity.
• 1:1 Turns Ratio — Balanced differential transmission for both TX and RX paths.
• High Inductance — ≥350 µH ensures stable signal coupling under bias conditions.
• Low Insertion Loss — ≤1.0 dB over 1–100 MHz, supporting high-speed operation.
• Strong Isolation — 1500 Vrms isolation voltage for safety and noise immunity.
• Wide Temperature Range — Operable from –40 °C to +85 °C for industrial environments.
• Compact SMT Package — Designed for surface-mount PCBs, enabling compact designs.
• Standards Compliance — Designed to meet IEEE 802.3 family requirements for Ethernet.
• Certifications & Reliability — RoHS compliance and UL rating (for isolation) ensure trustworthy integration.

Specifications of Surface Mount LAN Transformer

Description Mechanical & Packaging

• Outline dimensions: 27.81 mm × 12.25 mm × 7.7 mm 
• Pin count/layout: 48-pin SMT configuration (surface mount) 
• Package drawing/footprint: Provided in datasheet download
• Tape & reel/packaging type: Suitable for high-volume SMT placement

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