Mersen GSF Series Time-Delay Ceramic Ferrule Fuse

Mersen GSF Series Time-Delay Ceramic Ferrule Fuse

The Mersen GSF Series is a time-delay miniature fuse built with a ceramic body in the 5mm x 20mm (5x20) size, designed to protect sensitive electronic and electrical circuits from inrush current surges while still responding to sustained overloads. Rated 250VAC and 2.5A, this AC-rated fuse uses a ferrule terminal design for clip mounting, making it a reliable supplemental-class overcurrent protection device for equipment where brief current spikes are normal but sustained faults must be cleared. Its ceramic insulating body adds thermal and mechanical durability compared to glass-body alternatives, and the fuse is RoHS compliant for use in environmentally regulated electronic assemblies.

Key Features

• Fuse Size: 5mm x 20mm (5x20) miniature format for compact fuse holders and clip mounts.
• Ceramic Body Construction: Ceramic insulating material provides added heat and mechanical durability versus glass-body fuses.
• Ferrule Terminal, Clip Mounting: Ferrule connection/terminal type installs securely into standard clip-style fuse holders.
• Time-Delay Characteristic: Time-delay (slow-blow) speed rating allows momentary inrush current without nuisance tripping.
• Ampere Rating: 2.5A rated current for precise circuit-level overcurrent protection.
• Voltage Rating: 250V AC rated voltage (AC or DC: AC) suitable for standard AC-powered equipment.
• Fuse Class: Supplemental fuse class intended for internal appliance and equipment protection.

Certifications & Compliance

• RoHS Compliant

Technical Specifications

• AC or DC: AC
• ROHS Compliant: Yes

Typical Applications

• Electronic Equipment and Control Circuit Protection
• Industrial Control Panels and Devices
• Power Supplies and Instrumentation
• Appliance and Equipment Internal Circuit Protection
• OEM Assemblies Requiring Time-Delay Overcurrent Protection

Why Mersen?

Mersen's GSF Series pairs a durable ceramic body with a time-delay characteristic engineered to distinguish harmless inrush current from genuine overload conditions, helping protect connected equipment without unnecessary interruptions. With a 250VAC, 2.5A rating, ferrule terminals for secure clip mounting, and RoHS-compliant construction, this fuse is built for dependable, code-conscious performance in professional and OEM electrical applications where consistent supplemental overcurrent protection matters.