Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TLLR4401 found under Semiconductor Devicediode by Vishay Thin Film Llc. The National Stock Number assigned to this part is 5961016752512, and the Federal Supply Class is 5961 Semiconductor Devices And Associated Hardware. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like TLLR4401.