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OptiFuse FMSRE4A Micro Fuse

A fast-acting micro fuse with a square thermoplastic body made of UL 94-V0 material, featuring tin-lead plated alloy pins. It provides reliable overcurrent protection for electronic circuits, with a current rating of 4A and voltage ratings up to 250V. Designed to meet IEC standards, it withstands operating temperatures from -55°C to +125°C. Its compact size and short radial leads make installation easy in various electronic applications. This fuse ensures safety by preventing circuit damage due to overcurrent conditions, adhering to recognized agency standards including UL, VDE, and others.

Authorized Distributors
Part No:FMS-R-E-4A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $1.46
Buy/RFQ:
Part No:FMS-R-E-4A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.869
Buy/RFQ:
Part No:FMS-R-E-4A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.869
Buy/RFQ:

OptiFuse FMSRE4A Micro Fuse Specifications:

  • Body Material: Thermoplastic, UL 94-V0
  • Pin Material: Tin-Lead Plated Alloy
  • Current Rating: 4A
  • Voltage Rating: 250V
  • Operating Temperature: -55°C to +125°C
  • Mounting: Radial Leads, Short Leaded
  • Form Factor: Square body, IEC compliant
  • Agency Standards: UL Recognized, VDE, PSE, SEMKO, CCC, CQC
  • Interrupt Rating: 35A or 10In whichever is greater
  • Dimensions: 0.17 +0.02 inches (4.34 mm) square body, lead length approximately 0.34 inches (8.54 mm)

Buy the Optifuse Series FMS R E Micro Fuse: 4A

Purchase the Optifuse FMS R E 4A micro fuse today through our online store. Engineered for dependable overcurrent protection, it features a compact square thermoplastic body with short radial leads, ensuring easy installation in various electronic devices. Suitable for applications requiring reliable circuit safeguarding, it withstands temperature extremes from -55°C to +125°C and meets UL, VDE, and other international standards. Enable safe, efficient circuit operation by choosing this high-quality fuse for your electronic needs now.

Get Optifuse FMS R E 4A micro fuse today—built for reliable overcurrent protection in electronic circuits.

Frequently Asked Questions

Where can I buy OptiFuse FMSRE4A?

You can click on the BUY or RFQ button to purchase FMSRE4A from an authorized OptiFuse distributor.

How do I troubleshoot issues or seek technical support for part FMSRE4A?

You can download the FMSRE4A datasheet or visit the OptiFuse website for support.

Who is the manufacturer of FMSRE4A?

OptiFuse

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