Littelfuse 03122.25HXP Equivalent & Substitute Parts

Part Overview

The Littelfuse 03122.25HXP is a 2.25 A, 250 V AC/DC fast-blow glass cartridge fuse designed for 3AB and 3AG holder applications. This fuse is classified as Active product status and is widely used in industrial and commercial electrical protection circuits. Finding equivalent substitute parts is necessary to ensure supply chain continuity, optimize inventory management, and maintain compatibility across multiple equipment platforms that require identical electrical and mechanical specifications.

Substiute Parts

03122.25HXP

Littelfuse Inc.In Stock: 82403122.25HXP Datasheet

Current PartRFQ

BK/AGC-2-1/4-R

Eaton - Electronics DivisionIn Stock: 1174BK/AGC-2-1/4-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Littelfuse 03122.25HXP are determined by strict equivalence across the following critical parameters:

• Current Rating: 2.25 A (exact match required)
• Voltage Rating - AC: 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (exact match required)
• Size / Dimension: 0.250" Dia x 1.250" L (exact match required)
• Breaking Capacity @ Rated Voltage: 100 A (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

The Eaton BK/AGC-2-1/4-R meets all mandatory electrical and mechanical parameters for direct substitution in applications requiring the Littelfuse 03122.25HXP.

Parameter Comparison

Engineering Selection Recommendations

Both the Littelfuse 03122.25HXP and Eaton BK/AGC-2-1/4-R are Active product status components with established regulatory compliance. The Littelfuse part carries broader approval agency certifications (CE, CSA, KC, PSE, UL), while the Eaton substitute holds CSA and UL certifications. Selection between these parts should be based on application-specific regulatory requirements and existing supply chain relationships. Both parts meet identical electrical and mechanical specifications for direct substitution in 3AB and 3AG holder applications rated for 2.25 A at 250 V AC/DC with fast-blow response characteristics.

Frequently Asked Questions (FAQ)

Q: Can the Eaton BK/AGC-2-1/4-R be used as a direct replacement for the Littelfuse 03122.25HXP?

A: Yes. Both parts share identical current rating (2.25 A), voltage rating (250 V AC), fuse type (cartridge, glass), response time (fast blow), package designation (3AB, 3AG), physical dimensions (0.250" Dia x 1.250" L), and breaking capacity (100 A). They are mechanically and electrically interchangeable in holder-based applications.

Q: Are there any differences in regulatory certifications between these parts?

A: The Littelfuse 03122.25HXP carries CE, CSA, KC, PSE, and UL certifications. The Eaton BK/AGC-2-1/4-R carries CSA and UL certifications. Applications requiring KC or PSE compliance should specify the Littelfuse part.

Q: What does the 3AB and 3AG package designation mean?

A: 3AB and 3AG refer to standardized fuse holder types. Both parts are designed for use in holders conforming to these specifications, ensuring mechanical compatibility across equipment platforms using these holder standards.

Q: Are both parts RoHS compliant?

A: Yes. The Littelfuse 03122.25HXP is ROHS3 Compliant, and the Eaton BK/AGC-2-1/4-R is RoHS Compliant. Both meet environmental compliance requirements for electronic component manufacturing.

Q: What is the operating temperature range for these fuses?

A: Both parts operate across the temperature range of -55°C to 125°C, ensuring functionality in industrial and commercial environments with wide thermal variation.