bibtex/biber .bib entries

[karl at aspodata.se]

It seems "addendum" does what I wanted, now I get the three links
after each other in the references section, as if they are tree
ways to get the same information.

online{DiodesAH49F,
  title   = {LINEAR HALL EFFECT IC},
  url     = {https://www.diodes.com/assets/Datasheets/AH49F.pdf},
  organization = {Diodes Inc.},
  date    = {2019-03},
  addendum = {
    \url{https://www.diodes.com/part/view/AH49F}
    \url{https://se.farnell.com/diodes-inc/ah49fz3-g1/hall-effect-sensor-40-to-105deg/dp/3942777}
  },
}

Regards,
/Karl Hammar