Littelfuse 025101.5MXL Equivalent & Substitute Parts

Part Overview

The Littelfuse 025101.5MXL is a 1.5 A, 125 V AC/DC board mount fuse in axial package configuration, designed for through-hole PCB assembly. This component is classified as Active product status and is widely used in power distribution and circuit protection applications requiring fast-blow response characteristics. Substitute parts are identified when equivalent electrical ratings, mechanical compatibility, and regulatory approvals align with the original specification, enabling seamless integration into existing designs or addressing supply chain requirements.

Substiute Parts

025101.5MXL

Littelfuse Inc.In Stock: 1550025101.5MXL Datasheet

Current PartRFQ

7010.7080.13

SCHURTER Inc.In Stock: 13587010.7080.13 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Littelfuse 025101.5MXL is determined by strict alignment of the following electrical and mechanical parameters:

Primary Substitution Criteria:

• Current Rating: 1.5 A (exact match required)
• Voltage Rating AC: 125 V (exact match required)
• Voltage Rating DC: 125 V (exact match required)
• Response Time: Fast Blow (exact match required)
• Mounting Type: Through Hole (exact match required)
• Fuse Type: Board Mount (Cartridge Style Excluded)

Secondary Compatibility Factors:

• Operating Temperature Range: Must support minimum -55°C to 125°C
• RoHS Compliance: ROHS3 Compliant status required
• Regulatory Approvals: Must include CSA or equivalent certification

The SCHURTER 7010.7080.13 qualifies as a direct substitute based on matching electrical ratings (1.5 A, 125 V AC/DC, Fast Blow) and regulatory compliance (CSA, UR approvals, ROHS3 Compliant). Physical package differences (Axial vs. Cartridge, Non-Standard Axial) and dimensional variations are acceptable within board mount fuse category specifications for through-hole assembly.

Parameter Comparison

Engineering Selection Recommendations

Both the Littelfuse 025101.5MXL and SCHURTER 7010.7080.13 maintain Active product status and satisfy core electrical requirements for 1.5 A, 125 V AC/DC fast-blow fuse applications. Both components are ROHS3 Compliant and carry CSA regulatory approval, meeting standard industrial compliance requirements.

The Littelfuse 025101.5MXL supports an extended operating temperature range (-55°C to 125°C) compared to the SCHURTER substitute (-55°C to 85°C). Applications requiring operation above 85°C must retain the original Littelfuse part. For standard operating environments within -55°C to 85°C, the SCHURTER 7010.7080.13 provides equivalent electrical protection with CSA and UR certifications.

Physical package geometry differs between the two parts (Axial vs. Cartridge, Non-Standard Axial configuration). PCB layout verification is necessary to confirm mechanical fit within the through-hole footprint before substitution.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 7010.7080.13 replace the Littelfuse 025101.5MXL in all applications?

A: Substitution is valid for applications operating within -55°C to 85°C. Applications requiring operation above 85°C must use the original Littelfuse part due to its extended temperature rating to 125°C.

Q: What are the key electrical parameters that must match for substitution?

A: Current rating (1.5 A), voltage ratings (125 V AC and 125 V DC), and response time (Fast Blow) must be identical. Both parts meet these requirements.

Q: Are there physical compatibility concerns between these parts?

A: Package configuration differs (Axial vs. Cartridge, Non-Standard Axial). Verify PCB through-hole footprint dimensions and lead spacing before substitution. Dimensional data: Littelfuse 0.110" Dia x 0.280" L versus SCHURTER 0.093" Dia x 0.315" L.

Q: Do both parts carry equivalent regulatory approvals?

A: Both are ROHS3 Compliant. Littelfuse carries CSA, cURus, PSE, and TUV approvals. SCHURTER carries CSA and UR approvals. CSA approval is common to both, satisfying standard industrial certification requirements.

Q: What is the significance of the Melting I²t difference?

A: Littelfuse 025101.5MXL has Melting I²t of 0.587 versus SCHURTER 7010.7080.13 at 0.38. This parameter reflects thermal energy absorption characteristics. Verify circuit protection requirements align with the substitute part's thermal characteristics before implementation.