---
product_id: 64896224
title: "100mA (0.1A) GMA Fast-Blow Glass Fuses, 5x20mm, 250V, Replacement 5 Pack"
brand: "techman"
price: "$12.45"
currency: USD
in_stock: true
category: "Techman"
url: https://www.desertcart.us/products/64896224-100ma-0-1a-gma-fast-blow-glass-fuses-5x20mm-250v
store_origin: US
region: United States of America
---

# 0.1A fast-blow rating transparent casing for instant fuse check standard 5x20mm size fits most devices 100mA (0.1A) GMA Fast-Blow Glass Fuses, 5x20mm, 250V, Replacement 5 Pack

**Brand:** techman
**Price:** $12.45
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay powered, stay protected — fuse failure is so last season!

## Quick Answers

- **What is this?** 100mA (0.1A) GMA Fast-Blow Glass Fuses, 5x20mm, 250V, Replacement 5 Pack by techman
- **How much does it cost?** $12.45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/64896224-100ma-0-1a-gma-fast-blow-glass-fuses-5x20mm-250v)

## Best For

- techman enthusiasts

## Why This Product

- Trusted techman brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ready-to-Go 5-Pack:** Keep your tech arsenal stocked with five spares—perfect for pros who can’t afford to wait on repairs.
- • **Premium Conductivity:** Nickel-plated copper end caps deliver superior electrical flow and corrosion resistance for lasting reliability.
- • **Rapid Circuit Defense:** Fast-acting fuse wire melts instantly to protect your sensitive electronics from overload damage.
- • **Clear Visual Inspection:** See-through glass casing lets you spot blown fuses at a glance—no tools needed, no downtime wasted.
- • **Universal Fit & Compatibility:** Precisely engineered 5x20mm dimensions ensure seamless replacement in standard 250V fuse holders.

## Overview

This 5-pack of 100mA (0.1A) GMA fast-blow glass fuses offers rapid overcurrent protection with a transparent casing for easy inspection. Designed to fit standard 5x20mm, 250V fuse holders, these fuses feature nickel-plated copper end caps for enhanced conductivity and corrosion resistance, making them ideal replacements for multimeters, chargers, heaters, lighting, and other sensitive electronics.

## Description

Buy 100mA (0.1A) GMA Fast-Blow Glass Fuses, 5x20mm, 250V, Replacement 5 Pack | For Multimeters, Chargers, Heaters, Lights & Appliances; See-Through Casing, Easy Inspection; Spares for Techs & Repairs: Industrial & Scientific - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Complete 5-Pack Replacement Set: Includes five fast-blow GMA glass fuses designed to provide immediate replacement and spare inventory for routine maintenance, circuit repairs, or emergency backups across sensitive electronics and household appliances.
- Fast-Acting Overcurrent Protection: Built with a fast-acting fuse wire engineered to melt quickly under overload conditions, preventing severe circuit damage and safeguarding multimeters, chargers, heaters, lighting fixtures, and power supplies.
- Transparent Inspection Casing: Features a clear body that allows for quick visual inspection of the internal melt line, helping identify blown fuses instantly without requiring complex testing tools during troubleshooting.
- Standardized 5x20mm Dimensions: Constructed to exact 5x20mm x (0.20x0.79 inches) specifications, offering reliable compatibility across standard 250V fuse holders, panel mounts, and PCB through-hole clips.
- High-Conductivity Metal End Caps: Fitted with durable nickel-plated copper end caps to maximize electrical conductivity, minimize corrosion, and ensure consistent connection stability inside the fuse terminal.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074KMJHJS |
| Best Sellers Rank | #17,642 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #13 in Cartridge Fuses |
| Brand Name | Techman |
| Color | 0.1A |
| Current Rating | 0.1 A |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,541) |
| Included Components | 5 fuses |
| Item Highlight | For Multimeters, Chargers, Heaters, Lights & Appliances; See-Through Casing, Easy Inspection; Spares for Techs & Repairs |
| Manufacturer | Techman |
| Material Type | Glass |
| Model | GMA100MAL250V |
| Mounting Type | Through-Hole Mount |
| Number of Items | 5 |
| Part Number | F100MA250V |
| Specification Met | Gma |
| UPC | 613003147469 |
| Unit Count | 5 Count |
| Voltage | 250 volts |

## Product Details

- **Brand:** Techman
- **Material:** Glass
- **Mounting Type:** Through-Hole Mount
- **Specification Met:** Gma
- **Voltage:** 250 volts

## Images

![100mA (0.1A) GMA Fast-Blow Glass Fuses, 5x20mm, 250V, Replacement 5 Pack - Image 1](https://m.media-amazon.com/images/I/41QwII9cSNL.jpg)
![100mA (0.1A) GMA Fast-Blow Glass Fuses, 5x20mm, 250V, Replacement 5 Pack - Image 2](https://m.media-amazon.com/images/I/518W1I95nZL.jpg)

## Available Options

This product comes in different **Set** options.

## Questions & Answers

**Q: What are the exact technical specifications and physical size of these fuses?**
A: These 250V fast-blow glass cartridge fuses measure 5x20mm (0.2 x 0.78 inches). Available in ratings from 0.1 to 20, please check your original fuse specs and holder size carefully before ordering.

**Q: What is the difference between a fast-blow and a slow-blow fuse?**
A: Fast-blow fuses open instantly to protect sensitive electronics as soon as current exceeds the rated limit. Slow-blow fuses tolerate brief start-up surges. Always match your device’s original specifications.

**Q: What devices are these fast-acting glass fuses typically used for?**
A: They are commonly used in multimeters, small household appliances, battery chargers, audio equipment, and sensitive electronic devices requiring low-current, fast-acting circuit protection.

**Q: How can I tell if one of these glass fuses is blown?**
A: Thanks to the clear glass body, you can visually inspect the internal filament. If the metal wire is broken or visibly burnt, the fuse is blown. You can also verify continuity using a standard multimeter.

**Q: Can I use a 250V rated fuse in a lower voltage application, like 12V or 120V?**
A: Yes! The 250V rating indicates the maximum voltage the fuse can safely handle. It can safely be used in lower-voltage applications (such as 12V or 120V) as long as the current rating and physical dimensions match.

## Frequently Bought Together

- Techman - Pack of 5-100mA (0.1A) Glass Fuse (GMA), 250v, 5mm x 20mm (3/16" X 3/4") Fast Blow (Fast Acting)
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-27*