Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DR50520A found under Rectifier Semiconductor Device by Microsemi Corp Scottsdale. The National Stock Number assigned to this part is 5961000181794, 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 DR50520A.