MERSEN FUSE 250V FB 0,04A 5X20 AL 250VFB0.04A5X20AL

MERSEN FUSE 250V FB 0,04A 5X20 AL 250VFB0.04A5X20AL

Mersen Z204883 miniature high-speed semiconductor fuse with axial leads, 5 × 20 mm, rated 0.04 A and 250 V AC.

SKU: Z204883Alt SKU: 250VFB0.04A5X20ALMPN: Z204883
Price
List Price £7.91 ex VAT
Your Price (ex VAT)
£7.91
Manufacturer Lead Time Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

SUBTOTAL (EX VAT) £7.91
Trade pricing is personalised to your account

Manufacturer Lead Time

Sold in packs of 200

£7.91

Why Choose the Mersen Z204883 Miniature Semiconductor Fuse?

The Mersen Z204883 is a compact 5 × 20 mm high-speed semiconductor fuse designed to provide exceptionally fast protection for sensitive electronic components and semiconductor devices. Also identified by catalogue number MI5FBP25V0.04, it has a rated current of 0.04 A (40 mA) and a rated voltage of 250 V AC. It incorporates axial leads, making it ideal for direct PCB soldering and electronic assemblies.

Part of the Mersen FA/FB miniature semiconductor fuse series, the Z204883 features a very fast FB operating characteristic that rapidly clears fault currents before excessive energy reaches sensitive semiconductor components. This helps protect precision electronic equipment while reducing downtime and replacement costs.

Its ceramic construction, compact dimensions and high-speed response make it suitable for instrumentation, laboratory equipment, industrial electronics, telecommunications equipment and OEM electronic products requiring dependable semiconductor protection.

Key Advantages

  • Very fast protection for sensitive semiconductor devices.
  • 0.04 A (40 mA) rated current for precision electronics.
  • 250 V AC rated voltage.
  • Compact 5 × 20 mm ceramic cartridge.
  • Axial leads for PCB mounting and soldering.
  • 4 kA breaking capacity for dependable fault interruption.

Key Features

  • Mersen FA/FB miniature semiconductor fuse series.
  • Item number: Z204883.
  • Catalogue number: MI5FBP25V0.04.
  • 0.04 A rated current.
  • 250 V AC rated voltage.
  • Very fast FB operating characteristic.
  • 5 × 20 mm ceramic fuse body.
  • Axial lead mounting.
  • Solder connection.
  • RoHS compliant.

Fast Protection for Precision Electronic Equipment

High-speed semiconductor fuses are designed to interrupt fault currents before damaging levels of energy reach sensitive electronic components. Their low I²t values help minimise thermal stress and improve the reliability of semiconductor-based equipment.

The Mersen Z204883 combines ultra-low current protection with axial lead mounting, making it particularly suitable for PCB-mounted electronic assemblies where dependable semiconductor protection is essential.

Typical Applications

  • Printed circuit board assemblies.
  • Semiconductor protection circuits.
  • Industrial electronic equipment.
  • Instrumentation and laboratory equipment.
  • Telecommunications equipment.
  • OEM electronic products.

Technical Specifications

Current 04 A
Voltage 250 V
Manufacturer Mersen
Series Semiconductor Miniature Fuses Size 5 × 20 FA/FB 250 V AL
Model Z204883
Catalogue number MI5FBP25V0.04
Product type Miniature semiconductor fuse
Fuse size 5 × 20 mm
Rated current 0.04 A
Rated voltage 250 V AC
Electrical system AC
Characteristic High Speed FB
Mounting type Axial leads
Connection type Solder
Breaking capacity 4 kA
Pre-arcing I²t 0.00013 A²s
Clearing I²t 0.0004 A²s
Power dissipation 0.06 W @ In
Body material Ceramic
Overall length Approx. 76 mm
EAN / UPC 3605340183948
RoHS compliant Yes
Manufacturer pack quantity 2,000 pieces
Device Type Fuse link
Fuse Type Miniature, Semiconductor
Fuse Size 5x20 mm

Frequently Asked Questions

What is the Mersen Z204883 used for?

The Z204883 is a very fast semiconductor fuse designed to protect sensitive electronic components and semiconductor devices against overloads and short-circuit faults.

What are the electrical ratings?

The fuse is rated at 0.04 A (40 mA) and 250 V AC.

Does the fuse have axial leads?

Yes. The Mersen Z204883 is supplied with axial leads for direct PCB soldering and electronic assembly applications.

What is the breaking capacity?

The fuse provides a 4 kA breaking capacity for dependable fault interruption.

Where is the Z204883 commonly used?

It is commonly used in industrial electronics, instrumentation, semiconductor circuits, telecommunications equipment and OEM electronic products.

Trusted by Electronics Manufacturers Worldwide

Mersen miniature semiconductor fuses are trusted by electronics manufacturers, automation engineers and maintenance professionals for dependable high-speed protection of sensitive electronic and semiconductor equipment.

● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

 Priority sourcing and supply support

 Flexible payment terms for qualifying organisations

 Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 

Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

 

At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

What product ranges do you supply

We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What are your delivery times and costs?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What about warranties, returns and faulty items?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...