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OptiFuse FSO20A Automotive Glass Fuse

The FSO20A is a 1/4-inch glass body fuse with fast-acting characteristics, rated at 20 Amperes. Designed for automotive and electronic circuit protection, it features a transparent glass tube for visual overcurrent indication and complies with SAE specifications. The fuse prevents damage to sensitive components by interrupting excessive current flow, with size and ratings tailored to prevent over-fusing. Suitable for use with inline holders and 4-inch clips, ensuring reliable performance in various vehicular and electronic applications, it offers a quick response to protect circuits effectively.

Authorized Distributors
Source:DigiKey
Part No:FSO-20A
Stock:2037
Inv Date:06-05-2026
Price: Unit price: $0.88
Buy/RFQ:
Part No:FSO-20A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.9
Buy/RFQ:
Part No:FSO-20A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.5288
Buy/RFQ:
Part No:FSO-20A
Stock:0
Inv Date:06-05-2026
Price: Unit price: $0.5288
Buy/RFQ:

OptiFuse FSO20A Automotive Glass Fuse Specifications:

  • Size: 6.3 mm x 25.4 mm (1/4 inch x 1 inch)
  • Ampere Rating: 20A
  • Voltage Rating: 32VDC or less
  • Time-Current Characteristics: Total Clear
  • Mechanical Dimensions: Length 1-1/4 inches (31.7 mm), width 6.3 mm (1/4 inch)
  • Visual Indication: Transparent glass body for overcurrent detection
  • Standards: SAE specifications
  • Application: Suitable for in-line holders and 4-inch clips
  • Warning: Operation beyond maximum ratings can cause damage and arcing
  • Usage: Designed for occasional overcurrent protection, not for repeated or prolonged trips
  • Chemical Contact: Avoid prolonged contact with solvents to prevent damage

Buy the OptiFuse FSO20A – Reliable Automotive Glass Tube Fuse for Industrial Applications

Secure your electronic and automotive circuits with the OptiFuse FSO20A, a 20A fast-acting glass fuse designed for reliable overcurrent protection. Its compact 1/4-inch size and transparent glass body allow easy visual inspection for blown fuse detection. Suitable for inline holders and 4-inch clips, this fuse offers quick disconnection during faults, preventing damage to sensitive components. Perfect for automotive, industrial, and electronic applications, it ensures safety and durability. Buy online today for dependable circuit protection with easy installation and compliance with SAE standards.

Order your OptiFuse Series FSO20A fast-acting automotive fuse today and ensure your circuits are protected with dependable, quick-response overcurrent safety.

Frequently Asked Questions

Where can I buy OptiFuse FSO20A?

You can click on the BUY or RFQ button to purchase FSO20A from an authorized OptiFuse distributor.

How do I troubleshoot issues or seek technical support for part FSO20A?

You can download the FSO20A datasheet or visit the OptiFuse website for support.

Who is the manufacturer of FSO20A?

OptiFuse

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