Bourns SM353230-181N7Y/SM453230-121N7Y/SM453230-181N7Y transformers

Bourns has introduced the model SM353230-181N7Y, SM453230-121N7Y and SM453230-181N7Y gigabit ethernet chip LAN 1G/2.5G/5G and 10G base-T transformers. 

Unlike traditional LAN magnetics built with multiple toroidal core transformers and common mode chokes in a single module, a chip LAN transformer is a discrete, centre-tapped component wound on a drum core and capped with a ferrite plate to emulate the result of the close magnetic path of a toroid core. Bourns has paired a common mode chip inductor with a chip LAN transformer to provide EMI suppression. The discrete transformer / common mode chip inductor arrangement offers a high degree of flexibility in a PCB layout. 

The model SM353230-181N7Y, SM453230-121N7Y and SM453230-181N7Y gigabit ethernet chip LAN transformers are IEEE 802.3 ethernet compatible with an operating temperature range of -40°C to +85°C. They are ideal for use in LAN interfaces for a variety of high-speed telecommunication and network devices.

Features

• IEEE 802.3 ethernet compatible
• Compatible with 1G/2.5G/5G/10G BASE-T
• Discrete transformers and common mode chokes for flexible PCB layout
• Pairs a common mode choke for EMI suppression
• Expanded temperature range: -40°C to +85°C
• RoHS compliant* and halogen free**

Applications​

• High-speed telecommunication and network devices

_{* RoHS Directive 2015/863, Mar 31, 2015 and Annex.
** Bourns considers a product to be “halogen free” if (a) the Bromine (Br) content is 900 ppm or less; (b) the Chlorine (Cl) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine (Cl) content is 1500 ppm or less.}