Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XL335SY55N1 found under Semiconductor Device Diode by Advanced Thermal Products Inc. The National Stock Number assigned to this part is 5961014976337, 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 XL335SY55N1.