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OptiFuse FSO9A Automotive Glass Fuse

The FSO9A is a 1/4 inch fast-acting glass body fuse designed for automotive and electrical protection circuits. It features a 9 ampere current rating and provides reliable overcurrent protection with a total clear indication. The fuse is suitable for use in inline holders and 4-inch clips, offering precise ampere ratings to prevent circuit damage. Its compact size ensures easy installation, making it ideal for automotive, electronics, and industrial applications requiring quick response to overcurrent conditions. Constructed with clear glass for visual inspection, it complies with SAE specifications for safety and performance. The fuse's size and rating vary to prevent over-fusing and ensure compatibility across different circuits.

Authorized Distributors
Source:DigiKey
Part No:FSO-9A
Stock:1653
Inv Date:06-05-2026
Price: Unit price: $0.88
Buy/RFQ:
Part No:FSO-9A
Stock:100
Inv Date:06-05-2026
Price: Unit price: $0.3
Buy/RFQ:
Part No:FSO-9A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.5288
Buy/RFQ:
Part No:FSO-9A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.5288
Buy/RFQ:

OptiFuse FSO9A Automotive Glass Fuse Specifications:

  • Size: 1/4 inch (6.3 mm dia. x 25.4 mm length)
  • Ampere Rating: 9A
  • Voltage Rating: 32VDC and less
  • Type: Fast-acting, glass tube fuse
  • Color: Transparent with visual indication
  • Application: Automotive, inline holders, electrical circuits
  • Construction: Glass body with metal end caps
  • Standards: SAE specifications compliant
  • Size variations available for ratings from 4A to 30A
  • Total length: 1-1/16 inch (27 mm)
  • Part number: FSO9A
  • Usage: Provides quick response to overcurrent, suitable for occasional overcurrent events

Buy the Optifuse FSO9A – Reliable Automotive Fuse for Industrial Applications

Purchase the Optifuse FSO9A online for dependable automotive and electrical circuit protection. Designed for quick response with a 9A rating, this glass fuse features a transparent body for easy inspection. Its compact size fit inline holders and clips, ensuring proper protection against overcurrent conditions. Engineered to meet SAE standards, it offers reliable performance across various electrical applications. Secure your electrical system's safety by ordering FSO9A online—fast, reliable, and built for long-term durability in automotive and industrial environments.

Get Optifuse FSO9A today—built for automotive safety and long-lasting electrical protection.

Frequently Asked Questions

Where can I buy OptiFuse FSO9A?

You can click on the BUY or RFQ button to purchase FSO9A from an authorized OptiFuse distributor.

How do I troubleshoot issues or seek technical support for part FSO9A?

You can download the FSO9A datasheet or visit the OptiFuse website for support.

Who is the manufacturer of FSO9A?

OptiFuse

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