F03A125V20A The Littelfuse F03A125V20A is a fast-acting cartridge fuse rated for 20A and 125V. It features a 1/4" x 1 1/4" physical size and meets military specification MIL-F-15160/03.
Mfr Part #:

F03A125V20A

Available from 1 distributors
Mfr Name: Littelfuse Inc.
Littelfuse Inc.
The Littelfuse F03A125V20A is a fast-acting cartridge fuse rated for 20A and 125V. It features a 1/4" x 1 1/4" physical size and meets military specification MIL-F-15160/03.
✓ Total Stock: 85 pcs
$ Price Range: $0.99

F03A125V20A Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
85 pcs
85 pcs On Request 1 On Request On Request 2026-02-25 06:16:38 On Request On Request

F03A125V20A Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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Manufacturer Name
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F03A125V20A Description

Short technical summary and product information.

This Littelfuse F03A125V20A is a fast-acting cartridge fuse designed for reliable circuit protection. It has a current rating of 20A and a voltage rating of 125V.

 

The fuse has a physical size of 1/4" x 1 1/4" and is constructed with a ceramic tube and nickel-plated brass endcaps. It is designed to meet military specification MIL-F-15160/03, indicated by its NSN 5920-00-557-6057.

 

Key electrical characteristics include a maximum interrupting rating of 1000A AC and 400A DC. It opens within 120 seconds at 200% of its amp rating. Optional axial leads are available for specific mounting requirements.

 

This fuse is suitable for applications requiring robust and reliable overcurrent protection that adheres to military standards.

F03A125V20A Quick Information

Product Type: Cartridge Fuse
Series: ABC Series
Canonical Name: Littelfuse F03A125V20A Cartridge Fuse
Subcategory: Cartridge Fuse

F03A125V20A Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

F03A125V20A Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

F03A125V20A Features

  • Fast-acting 20A, 125V cartridge fuse.
  • Meets military specification MIL-F-15160/03.
  • 1/4" x 1 1/4" physical size.
  • Ceramic tube construction.
  • High interrupting ratings available.

F03A125V20A Applications

  • Used for overcurrent protection.
  • Suitable for military applications.
  • General industrial circuit protection.
  • Applications requiring specific form factor.

F03A125V20A FAQs

6 frequently asked questions generated from this part’s specifications.
What is the current rating of the F03A125V20A fuse?

The F03A125V20A fuse has a current rating of 20A.

What is the voltage rating of the F03A125V20A fuse?

The F03A125V20A fuse has a voltage rating of 125V.

What is the physical size of the F03A125V20A fuse?

The physical size of the F03A125V20A fuse is 1/4" x 1 1/4".

What is the interrupting rating of the F03A125V20A fuse?

The F03A125V20A fuse has an AC interrupting rating of 1000A and a DC interrupting rating of 400A.

What is the response time for the F03A125V20A fuse at 200% of its amp rating?

The F03A125V20A fuse opens within 120 seconds at 200% of its amp rating.

Does the F03A125V20A fuse meet any military specifications?

Yes, the F03A125V20A fuse meets military specification MIL-F-15160/03.

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