Bourns SM453229A-381N7Y AEC-Q200 LAN Transformers

Bourns SM453229A-381N7Y Automotive-Grade 10/100/1000 Base-T Chip LAN Transformers are IEEE 802.3 Ethernet compatible network transformers. Unlike traditional LAN transformers made using multiple toroidal core transformers and common mode chokes, these Bourns transformers utilize a discrete, center-tapped component wound on a drum core. This design feature enables the transformers to emulate the result of a toroid core with a closed magnetic path, with the added benefit of a high degree of PCB layout flexibility. Bourns SM453229A-381N7Y AEC-Q200 LAN Transformers are ideal for Ethernet, telecommunications, and other applications.


  • IEEE 802.3 Ethernet compatible
  • 10/100/1000 Base-T compatible
  • Discrete transformers and common mode chokes
  • Automotive-grade
  • HiPot isolation 1500VAC @ 60s
  • Pairing common mode choke SRF2012A-801Y for EMI reduction
  • -40°C to +105°C temperature range
  • RoHS compliant and halogen-free
  • AEC-Q200 compliant


  • Ethernet
  • Telecommunications
  • Network devices
  • Single Pair Ethernet (SPE)


Publicado: 2021-12-07 | Actualizado: 2022-08-01