Microwave ovens use this little ceramic-looking fuse. 1 1/4" X 1/4
inch dimensions.

Often will be either 15 or 20 amp, 250 volts rating.

My question......is this "microwave fuse" a slow-blow or fast-blow
fuse?

Thank you....... Lee Carkenord

I believe its a standard not slow blo, radio shach has them, they used
to call them microwave fuses. i use them for the machines i fix for a
living, the ceramic helps cool the fusible link inside so it doesnt
blow unless theres a real short