Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TJ20A found under Semiconductor Device Diode by Industrial Control Co. The National Stock Number assigned to this part is 5961007780779, 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 TJ20A.