Microwave Ceramic Slow-Blow Fuse

This is a 20-amp ceramic slow-blow fuse commonly used in microwave ovens and some small appliances. It protects the circuit by allowing brief surges but opening under sustained overloads.

Key Features

• Rated 20 A, 250 V; slow-blow / time-delay type to tolerate transient current spikes (such as startup) without blowing immediately.

• Constructed with a ceramic body and internal fuse element for high interrupt capacity and safe failure mode.

• Dimensions: approximately 1¼″ length × ¼″ diameter, standard axial lead design.

• Replaces prior numbers like CF20SB, 14QBP0244; often used in Panasonic, GE, Whirlpool, and other microwave brands.

• Compatible with many microwave models calling for “14QBP20CSB” or “20A ceramic fuse” — always confirm your appliance’s fuse type before ordering.