Bourns SM91076L Lan 10/100 Base-T Transformer

Bourns SM91076L Lan 10/100 Base-T Transformers are IEEE 802.3 compliant surface mount network transformers. These components feature 4 internal transformers with 1:1 output for both RX and TX isolation for the connected RJ45 device. Bourns SM91076L Lan 10/100 Base-T Transformers feature an integrated EMI shield to improve surge immunity and EMC performance.


  • IEEE 802.3u (100Base-T) compliant and MMA suggested
  • Mechatrolink automation protocol compliant
  • Additional metal shield for surging immunity and improved EMC performance
  • Compliant with IEC 61000-4-5 surge immunity test level 3 (2000V)
  • RoHS compliant


  • Mechatrolink BUS Systems
  • Industrial Ethernet and Field BUS Systems
  • Low/medium risk medical equipment


  • 2250VDC / 1500VAC Hi-Pot
  • -40°C to +125°C operating temperature range
  • 350μH min OCL (open circuit inductance) @100kHz
  • .5μH max leakage inductance @100kHz
  • DCR
    • 1.0Ω max transformer side
    • 1.4Ω max cm choke side
  • 1:1 ± 2% turns ratio
Published: 2021-09-23 | Updated: 2022-03-11