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Mersen STG Series Time-Delay Glass Tube Fuse, 2AG Ceramic Body
The Mersen STG Series is a 4.5mm x 14.5mm (2AG) glass body, time-delay fuse family rated 250-350VAC and available across a 1/4A-7A ampere range, including 1 A and 3/8 A ratings, for electronic circuit protection. Its cylindrical non-rejection body mounts in standard clip-type fuse holders, while the time-delay characteristic allows the element to ride through momentary inrush current without nuisance opening. Every rating in the STG Series shares a ceramic body construction, nickel-plated brass contacts, and ferrule termination, and the line is UL Listed and CSA Certified, giving specifiers a dependable, code-recognized option for control and instrumentation circuits.
Key Features
- Compact 2AG Body: 4.5mm x 14.5mm cylindrical non-rejection body fits standard 2AG clip mounts in space-constrained electronic assemblies.
- Ceramic Body Construction: Ceramic body material supports reliable performance across the full ampere range.
- Time-Delay Characteristic: Time-delay (slow-blow) response rides through momentary inrush current while still opening on sustained overcurrent.
- Wide Ampere Range: Offered from 1/4A up to 7A, including 1 A and 3/8 A ratings, to match a broad range of electronic circuit protection requirements.
- Dual Voltage Rating: Rated 250-350VAC, covering UL Listed 250VAC and UL/CSA Recognized 350VAC applications.
- Interrupting Rating: I.R. AC rated 0.035 kA / 0.1 kA depending on ampere selection.
- Ferrule Termination: Ferrule-style connection terminals seat securely into standard clip fuse holders.
- Nickel-Plated Brass Contacts: Nickel plated brass end caps provide reliable, corrosion-resistant electrical contact.
Certifications & Compliance
- UL Listed (E90660 JDYX2.E90660)
- CSA Certified (1422-01)
- UL/CSA Recognized
Technical Specifications
- Body Style: Cylindrical Non Rejection
- UL Certification: E90660 JDYX2.E90660
- CSA Certification: 1422-01 1422-01
- AC Voltage Range: 250 - 350 VAC
- Ampere Range: 1/4-7 A
- I.R. AC: 0.035 kA / 0.1 kA
- Body Material: Ceramic
Typical Applications
- Electronic Circuit Protection
- Control Panels and Instrumentation
- Low-Voltage Equipment Protection
- OEM Electronic Assemblies
Why Mersen?
Mersen's STG Series pairs a ceramic, time-delay fuse element with nickel-plated brass contacts and ferrule terminals for dependable, repeatable performance across its full 1/4A-7A ampere range, including the 1 A and 3/8 A ratings. Backed by UL Listing and CSA Certification across its 250-350VAC range, the STG Series gives engineers and technicians a code-recognized fuse family they can specify with confidence for professional electronic and control applications.
Manufacturer Resources
Mersen Product Catalog
Product Specs
- Body Style:
- Cylindrical Non Rejection
- Mounting Method:
- Clip
- UL Certification:
- E90660 JDYX2.E90660
- Connection Terminal Type:
- Ferrule
- Lead Free:
- Consult Technical Services
- ROHS Compliant:
- Consult Technical Services
- CSA Certification:
- 1422-01 1422-01
- Speed / Characteristic:
- Time-Delay
- Materials Contact:
- Nickel Plated Brass
- AC Voltage Range:
- 250 - 350 VAC
- Ampere Range:
- 1/4-7 A
- CE conformity:
- Consult Technical Services
- I.R. AC:
- 0.035 kA 0.1 kA
- Applications:
- Electronic circuits
- Body Material:
- Ceramic
- list_batch:
- MERSEN-20260825
- Department:
- Electrical
- Product Group:
- Wiring Devices
- Product Type:
- Fuse
- Product Material:
- Ceramic
- Configuration:
- Cylindrical Non Rejection
- Voltage Rating:
- 250-350VAC
- Amperage Rating:
- 1/4-7A
- Listing:
- UL Listed
- Standards:
- CSA Certified
- Product Subgroup:
- Fuses by Type