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LAN Transformer
Single Port Lan Transformer
2.5G Base-T Lan Transformer

2.5G Base-T Lan Transformer

Shop LINK-PP 2.5G Base-T LAN transformers (discrete multi-gig Ethernet magnetics) for NBASE-T PHY designs. This leaf covers single-port SMD 2.5G magnetics modules—24-pin packages, PoE+/PoE++ options—when the RJ45 jack and transformer stay separate on the PCB. Return to the parent LAN Transformer hub for 5G and 10G siblings, or open Integrated RJ45 for integrated 2.5G magjacks. Match turns ratio, PoE class, and land pattern on each product page before ordering.

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Frequently asked questions

01.What is a 2.5G Base-T LAN transformer?
A 2.5G Base-T LAN transformer is a discrete Ethernet magnetics module for PHY isolation on copper links, used when the RJ45 jack and magnetics are separate components. LINK-PP SMD modules on this leaf target 2.5G Base-T designs. See the parent LAN Transformer hub for other speeds.
02.When should I use a discrete 2.5G Base-T LAN transformer vs integrated RJ45?
Choose discrete magnetics plus a non-magnetic jack when layout, height, or BOM strategy keeps magnetics off the connector. Choose an integrated RJ45 when you want a one-piece magjack with LEDs at the board edge.
03.Which package and pin counts are typical?
Single-port SMD modules commonly use 16-pin packages for 10/100 and 24-pin packages for Gigabit and multi-gig grades, but always confirm pin count and land pattern on the product page for your SKU.
04.Are Pulse, Halo, Würth, or Bel LAN transformer PNs available as Compatible parts?
Yes—many listings map OEM magnetics PNs to LINK-PP equivalents. Open the Compatible product page, confirm turns ratio, PoE capability, and ICM pinout, then order the LINK-PP P/N shown.
05.What should I check before ordering a LAN transformer?
Match turns ratio, PoE class, operating temperature, pin count, and reel/tape packaging to your PHY reference design. Sibling leaves such as 5G Base-T LAN Transformers, 10G Base-T LAN Transformers help when you need another Base-T grade. Electrical tables are on each product page.

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