Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1N21BR found under Semiconductor Device Diode by Semic Rf Electronic Gmbh. The National Stock Number assigned to this part is 5961000232752, 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 1N21BR.