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OptiFuse FSA1A Fast-Acting Glass Fuse

The product is a fast-acting, half-inch by one and a quarter-inch 3AG glass fuse designed for circuit protection. Rated at 1 ampere, it features a nickel-plated brass contact and a glass body for durability. Suitable for residential and industrial applications, this fuse offers reliable overload protection, withstanding operating temperatures from -55°C to +125°C. It complies with UL, UR, and CSA standards, ensuring high safety and quality. The fuse's construction ensures quick response to overcurrent conditions, preventing damage to electrical systems while offering easy replacement for maintenance.

Authorized Distributors
Source:DigiKey
Part No:FSA-1A
Stock:400
Inv Date:06-05-2026
Price: Unit price: $0.97
Buy/RFQ:
Part No:FSA-1A
Stock:15
Inv Date:06-05-2026
Price: Unit price: $0.99
Buy/RFQ:
Part No:FSA-1A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.5846
Buy/RFQ:
Part No:FSA-1A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.5846
Buy/RFQ:

OptiFuse FSA1A Fast-Acting Glass Fuse Specifications:

  • Type: 3AG Glass Fuse
  • Size: 0.5 inch x 1.25 inch
  • Rating: 1 Ampere
  • Material: Glass body, nickel-plated brass contacts
  • Lead Wire: Tin plated copper
  • Operating Temperature: -55°C to +125°C
  • Standards: UL Listed, UR Recognized, CSA Certified
  • Interrupt Ratings: 35A at 250V AC, 100A at 250V AC, 200A at 250V AC, 300A at 32V AC
  • Physical Dimensions: Length 1.25 inches, Width 0.5 inches
  • Packaging: Bulk or boxed options
  • Current Range: 100mA to 30A variants available

Buy the Buy Optifuse FSA1A Part Number FSA1A Online

Purchase the Optifuse Fast-Acting Glass Fuse online today for reliable overcurrent protection in your electrical circuits. This 1A fuse features a durable glass body and high-quality nickel-plated brass contacts, ensuring safe and consistent operation from -55°C to +125°C. Ideal for residential, industrial, and commercial applications, it meets UL, UR, and CSA standards for safety and performance. Easy to replace, these fuses prevent damage to equipment by quickly responding to overloads. Secure your electrical projects now with dependable, UL-certified circuit protection available for online purchase.

Order your Optifuse SeriesFSA1A fast-acting glass fuse today and secure your electrical systems with dependable circuit protection.

Frequently Asked Questions

Where can I buy OptiFuse FSA1A?

You can click on the BUY or RFQ button to purchase FSA1A from an authorized OptiFuse distributor.

How do I troubleshoot issues or seek technical support for part FSA1A?

You can download the FSA1A datasheet or visit the OptiFuse website for support.

Who is the manufacturer of FSA1A?

OptiFuse

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