The 00631509 is a genuine OEM Bosch High Voltage Fuse. The Bosch 00631509 High Voltage Fuse fits the following brands of microwaves: Bosch The Bosch 00631509 protects the microwave from damage by shutting off the microwave if there's a power surge. The 00631509 replaces: 631509, 10001604 It is recommended to either refer to your appliance service manual, contact your appliance manufacturer, or contact a service professional to validate the needed part number for your appliance prior to purchasing.