Mersen GSD1/16 - 250V Fast Acting Glass 5mm x 20mm 250 Volts 0.0625 Amps GSD series.
Mersen

GSD1/16

Alternate Item Number: 782001244484

UPC: 782001244484

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Minimum Qty: 5

Multiplier: 5

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Overview

The **Mersen GSD1/16** is a high-performance, fast-acting glass fuse engineered for precise overcurrent protection in industrial, commercial, and electronic applications. Rated at **250V** and **0.0625A**, this **5mm x 20mm** fuse is part of the **GSD series**, a trusted line of fuses designed to safeguard sensitive circuits against damaging overloads and short circuits. Manufactured by **Mersen**, a global leader in electrical protection solutions, the GSD1/16 combines rapid response times, compact form factor, and robust construction to ensure reliable operation in demanding environments. Fast-acting fuses like the GSD1/16 are critical components in modern electrical systems, where even minor overcurrent events can lead to equipment failure, fire hazards, or costly downtime. Unlike slow-blow fuses, which tolerate temporary surges, the GSD series reacts almost instantaneously to fault conditions, isolating the circuit before damage occurs. This makes it an ideal choice for protecting **power supplies, control systems, instrumentation, and low-power electronic devices** where precision and reliability are paramount. The **GSD1/16** is particularly well-suited for applications requiring **low current ratings** and **high voltage tolerance**, such as: - **Industrial automation** (PLCs, sensors, and motor controllers) - **Telecommunications equipment** (routers, switches, and power distribution units) - **Medical devices** (diagnostic equipment and life-support systems) - **Consumer electronics** (power adapters, chargers, and small appliances) - **Renewable energy systems** (solar inverters and battery management circuits) Mersen’s **GSD series** is manufactured to meet stringent international standards, including **IEC 60127**, ensuring consistent performance and safety across global markets. The **glass body** of the fuse provides visual confirmation of operation (blown fuse indication) and excellent dielectric strength, while the **5mm x 20mm** dimensions make it compatible with standard fuse holders and panels. Its **compact size** also allows for efficient space utilization in densely packed control cabinets or enclosures. When selecting a fuse for a critical application, professionals prioritize **response time, voltage rating, and current rating**—all of which the GSD1/16 delivers with precision. The **0.0625A (62.5mA)** current rating makes it ideal for protecting low-power circuits, such as those found in **signal processing, data acquisition, or low-voltage DC systems**. Installation is straightforward, with the fuse designed to fit standard **5x20mm fuse clips**, ensuring compatibility with existing infrastructure. Mersen’s reputation as a leader in electrical protection is built on decades of innovation and reliability. The company’s fuses are deployed in mission-critical applications worldwide, from **aerospace and defense** to **oil & gas** and **healthcare**. By choosing the **GSD1/16**, engineers and technicians gain confidence in a product that meets rigorous testing protocols and delivers consistent performance under real-world conditions. For applications where **fast-acting, high-reliability fuses** are non-negotiable, the **Mersen GSD1/16** stands out as a cost-effective, high-quality solution. Whether safeguarding a **sensitive electronic circuit** or ensuring the integrity of a **power distribution network**, this fuse provides the protection needed to maintain system uptime and operational safety. Trusted by industries that demand **precision, durability, and compliance**, the GSD series remains a go-to choice for professionals who refuse to compromise on electrical protection.
  • 250V voltage rating for high-performance circuit protection
  • 0.0625A (62.5mA) current rating for low-power applications
  • 5mm x 20mm glass fuse with fast-acting response time
  • Part of Mersen’s trusted GSD series for industrial and electronic use
  • Compact design fits standard fuse holders and panels

Specifications

Amperage Rating
0.0625 A
Application
Electronic circuits
Brand Name
Ferraz Shawmut
Connection
Ferrule
Interrupt Rating
1.5 kA
Mounting
Clip
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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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.

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.