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OptiFuse FSA300mA Fast-Acting Glass Fuse

This is a ¼ x 1¼-inch fast-acting glass tube fuse designed for reliable circuit protection in various electrical applications. It features a glass body with nickel-plated brass contacts, offering quick response to overcurrent conditions. Suitable for equipment operating in temperature ranges from -55°C to +125°C, it is UL listed, CSA certified, and recognized by UR for specific ratings. The fuse withstands interrupt ratings up to 300A at 32V AC, ensuring safety and durability in demanding industrial environments. It is packaged in bulk and ideal for circuit protection where rapid blowout is essential.

Authorized Distributors
Source:DigiKey
Part No:FSA-300MA
Stock:2472
Inv Date:06-05-2026
Price: Unit price: $1.18
Buy/RFQ:
Part No:FSA-300mA
Stock:24
Inv Date:06-05-2026
Price: Unit price: $0.54
Buy/RFQ:
Part No:FSA-300MA
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.7115
Buy/RFQ:
Part No:FSA-300MA
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.7115
Buy/RFQ:

OptiFuse FSA300MA Fast-Acting Glass Fuse Specifications:

  • Physical Size: ¼ x 1¼ inch (3AG)
  • Materials: Glass body, nickel-plated brass contacts, tin-plated copper lead wires
  • Rated Current: 300mA
  • Voltage Rating: 250V AC
  • Interrupt Ratings: 300A at 32V AC
  • Operating Temperature: -55°C to +125°C
  • Certifications: UL Listed, CSA Certified, UR Recognized
  • Compliance: Meets industry safety standards
  • Packaging: Bulk packaging available, suitable for manufacturing or repair supply
  • Response Time: Fast-acting for quick circuit interruption

Buy the Optifuse 300mA FSA – Reliable Circuit Protection for Industrial Applications

Order the Optifuse fast-acting glass fuse today to ensure your electrical systems are protected with reliable, high-quality circuit safety components. This ¼ x 1¼ inch fuse rated at 300mA offers quick response to overcurrent situations, preventing damage and ensuring safety in industrial and commercial applications. UL listed and CSA certified, it features a durable glass body with nickel-plated brass contacts for longevity. Packaged in bulk for convenience, this fuse is ideal for repair technicians and manufacturing setups requiring rapid circuit interruption and dependable performance. Purchase online now for fast delivery and peace of mind.

Get Optifuse 300mA FSA fuse today—built for fast response and long-lasting durability in electrical systems.

Frequently Asked Questions

Where can I buy OptiFuse FSA300MA?

You can click on the BUY or RFQ button to purchase FSA300MA from an authorized OptiFuse distributor.

How do I troubleshoot issues or seek technical support for part FSA300MA?

You can download the FSA300MA datasheet or visit the OptiFuse website for support.

Who is the manufacturer of FSA300MA?

OptiFuse

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