Mersen GSD1/20 - 250V Fast Acting Glass 5mm x 20mm 250 Volts 0.05 Amps GSD series.
Mersen

GSD1/20

Alternate Item Number: 782001244477

UPC: 782001244477

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Minimum Qty: 5

Multiplier: 5

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Overview

The Mersen GSD1/20 is a high-performance, fast-acting miniature fuse engineered for critical circuit protection in a wide array of industrial and electronic applications. As part of Mersen's GSD series, this fuse is specifically designed to provide rapid interruption of overcurrent conditions, safeguarding sensitive components and equipment from damage. Its compact 5mm x 20mm form factor makes it ideal for space-constrained designs, while the 250V AC voltage rating and precise 0.05A current rating ensure accurate protection for low-power circuits. Constructed with a robust glass body, the GSD1/20 offers excellent dielectric strength and visual indication of its status. This fast-acting fuse is crucial for applications where quick response to fault currents is paramount. It is particularly well-suited for protecting sensitive electronic components, control circuits, instrumentation, and various low-power devices that require reliable overcurrent protection without compromising performance. Mersen, a globally recognized leader in electrical protection and power management solutions, brings its extensive expertise to the GSD series. This commitment to quality and reliability means that the GSD1/20 fuse is built to meet stringent industry standards, ensuring dependable operation even in demanding environments. The fast-acting characteristic is vital for preventing cascading failures and prolonging the lifespan of connected equipment. Key features and benefits of the Mersen GSD1/20 include: * **Fast-Acting Performance:** Rapidly interrupts overcurrents to protect sensitive electronics. * **Compact 5x20mm Size:** Suitable for space-limited applications and PCB mounting. * **250V AC Rating:** Versatile for use in a broad range of power systems. * **0.05A Current Rating:** Precise protection for low-power circuits and components. * **Glass Body Construction:** Provides durability and visual status indication. * **Mersen Quality:** Backed by a trusted manufacturer renowned for electrical safety and reliability. When selecting fuses for critical applications, professionals rely on Mersen for consistent performance and adherence to safety standards. The GSD1/20 is an excellent choice for designers and engineers seeking dependable protection for their electronic circuits and equipment. Its ability to quickly clear faults minimizes downtime and reduces the risk of costly repairs. Trust the Mersen GSD1/20 for your essential overcurrent protection needs.
  • Mersen GSD Series Fast-Acting Glass Fuse
  • 5mm x 20mm Miniature Size
  • 250V AC Voltage Rating
  • 0.05 Ampere Current Rating
  • Ideal for protecting sensitive electronic components and control circuits

Specifications

Amperage Rating
0.5 A
Application
Electronic circuits
Brand Name
Ferraz Shawmut
Connection
Ferrule
Current Rating
0.05 A
Interrupt Rating
1.5 kA
Material
Glass
Mounting
Clip
Mounting Type
PCB mounting
Series
GSD
Size
5mm x 20mm
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.

LCC5

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.
9F61 Size B Clips 1.6in

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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.