Mersen GSD1/8 - 250V Fast Acting Glass 5mm x 20mm 250 Volts 0.125 Amps GSD series.
Mersen

GSD1/8

Alternate Item Number: 782001244514

UPC: 782001244514

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Multiplier: 5

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Overview

The Mersen GSD1/8 is a high-performance, fast-acting glass fuse engineered for critical overcurrent protection in a wide array of industrial and electronic applications. This compact fuse, measuring 5mm x 20mm, is designed to safeguard sensitive circuits and equipment from damage caused by short circuits and overloads. With a precise voltage rating of 250V and a sensitive current rating of 0.125A, the GSD1/8 is an indispensable component for maintaining the integrity and longevity of electronic systems. As part of Mersen's esteemed GSD series, this fuse exemplifies the manufacturer's commitment to delivering robust and reliable protection solutions. Its fast-acting characteristic is paramount, ensuring that the fuse interrupts the circuit almost instantaneously upon detecting an abnormal current surge. This rapid response minimizes the duration of fault currents, thereby significantly reducing the potential for heat damage, component failure, and fire hazards in delicate electronic assemblies. The glass construction not only contributes to its fast-acting capabilities but also offers the advantage of visual inspection, allowing technicians to easily verify the fuse's integrity without requiring specialized testing equipment. The Mersen GSD1/8 fuse is ideally suited for low-power electronic devices, control circuits, power supplies, instrumentation, and other applications where precise and rapid overcurrent interruption is essential. Its small form factor makes it suitable for integration into densely populated circuit boards and compact enclosures, a common requirement in modern electronic design. Professionals rely on Mersen for their extensive expertise in electrical protection, and the GSD1/8 is a testament to this reputation, offering dependable performance in demanding operational environments. Key specifications and benefits of the Mersen GSD1/8 include: * **Fast-Acting Response:** Essential for protecting sensitive electronic components from transient overcurrents. * **Compact 5mm x 20mm Size:** Facilitates integration into space-constrained applications. * **250V Voltage Rating:** Suitable for a broad range of low-voltage industrial and electronic circuits. * **0.125A Current Rating:** Provides precise protection for low-power circuits. * **Glass Construction:** Enables visual inspection and contributes to fast-acting performance. * **Reliable Overcurrent Protection:** Safeguards equipment against short circuits and overloads. When selecting fuses for critical applications, engineers and technicians prioritize components that offer predictable and reliable performance. Mersen's GSD series, including the GSD1/8, meets these stringent requirements, providing peace of mind and ensuring the operational continuity of vital systems. Trust in Mersen's legacy of innovation and quality to protect your valuable equipment.
  • Mersen GSD1/8 Fast Acting Glass Fuse
  • 250V AC/DC Voltage Rating
  • 0.125 Amps Current Rating
  • 5mm x 20mm Standard Size
  • Ideal for sensitive electronic circuits and low-power systems

Specifications

Amperage Rating
0.125 A
Application
Electronic circuits
Brand Name
Ferraz Shawmut
Connection
Ferrule
Current Rating
0.125A
Interrupt Rating
1.5 kA
Material
Glass
Mounting
Clip
Series
GSD
Size
5x20mm
Special Features
Ceramic BodyFast-Acting5mm x 20mmGSD-V fuses have 1-1/2" wire lead each end.
Standard
UL/CSA Recognized 1/16A - 10A, 250VAC, SEMKO Approved 1A - 6-3/10A, 250VAC VDE Approved 1A - 6-3/10A, 250VAC, !EC 127-2 Sheet 1
Type
5 X 20 mm miniature fuses
Voltage Rating
250 VAC
Package Dimensions (L x W x H)
0.787 IN x 0.2 IN x 0.2 IN
Package Dimensions (L x W x H)
19.9898 mm x 5.08 mm x 5.08 mm
Package Weight (Imperial)
0.005 L
Package Weight (Metric)
0.002 kg
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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

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Frequently Asked Questions about Mersen

What industries and applications are Mersen products used for?

Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.

What are the main product lines offered by Mersen?

Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.

What are the key features of Mersen products?

Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.

What environmental ratings do Mersen products have?

Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.

What accessories are available for Mersen products?

Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.

How are Mersen products typically installed?

Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.

What certifications and standards do Mersen products comply with?

Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.

What technical support does Mersen offer?

Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.