Chip Beads Product Top Page Search by Part No. Search by Characteristics Cross Reference Catalog Tech Notes Technical Support Tools FAQ EoL/NRND Info. TVCL - TDK Virtual Component Library The TVCL is simulation model that reproduce the characteristics of TDK electronic components in circuit simulators. EMC Testing Services EMC Testing Services Failure in Time (FIT) After logging in to myTDK, you can check FIT information on individual product details pages.