Littelfuse 0253002.M Board Mount Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0253002.M is a 2A 125VAC/125VDC board mount fuse with axial through-hole configuration, designed for fast-blow protection in electronic circuits. This component is classified as Active product status with full international compliance certifications. Substitute parts are identified when identical electrical and mechanical parameters are maintained across the same product series, ensuring direct interchangeability without circuit redesign or performance degradation.

Substiute Parts

0253002.M

Littelfuse Inc.In Stock: 8520253002.M Datasheet

Current PartRFQ

0253002.V

Littelfuse Inc.In Stock: 14900253002.V Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0253002.M is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part 0253002.V maintains identical specifications in the following key areas:

• Current Rating: 2 A (exact match)
• Voltage Rating: 125VAC / 125VDC (exact match)
• Response Time: Fast Blow (exact match)
• Mounting Configuration: Through Hole Axial (exact match)
• Physical Dimensions: 0.103" Dia x 0.280" L (exact match)
• Breaking Capacity: 50A AC, 300A DC (exact match)
• DC Cold Resistance: 0.0473 Ohms (exact match)
• Series Classification: PICO® II 253 (exact match)
• Approval Agencies: CCC, CSA, PSE, QPL, TUV, UR (exact match)
• RoHS Status: ROHS3 Compliant (exact match)

Both parts are manufactured by Littelfuse Inc. and carry Active product status. The substitution is based on parametric equivalence within the same product series, with no electrical or mechanical deviations.

Parameter Comparison

Engineering Selection Recommendations

Both the 0253002.M and 0253002.V are qualified for direct substitution in applications requiring 2A fast-blow fuse protection at 125VAC/125VDC. Selection between these parts should be based on inventory availability and supply chain considerations, as all electrical, mechanical, and compliance parameters are identical.

The 0253002.V currently maintains higher inventory availability (1443 Pcs) compared to the 0253002.M (805 Pcs), which may influence procurement decisions for high-volume applications. Both parts carry identical international certifications (CCC, CSA, PSE, QPL, TUV, UR) and RoHS3 compliance status, ensuring regulatory acceptance in equivalent markets.

Frequently Asked Questions (FAQ)

Q: Can 0253002.V be used as a direct replacement for 0253002.M?

A: Yes. Both parts are parametrically equivalent across all electrical specifications (2A current rating, 125VAC/125VDC voltage rating, fast-blow response), mechanical dimensions (0.103" Dia x 0.280" L axial configuration), and approval certifications. No circuit modifications are required.

Q: What determines substitution eligibility for these fuse parts?

A: Substitution is based on exact equivalence in current rating, voltage rating (AC and DC), response time classification, mounting type, physical dimensions, breaking capacity, and resistance characteristics. All these parameters must match identically between the main part and substitute.

Q: Are there any packaging or form factor differences between these parts?

A: No. Both parts use identical axial through-hole packaging with the same physical dimensions (0.103" Dia x 0.280" L / 2.61mm x 7.11mm). They are mechanically interchangeable on PCB layouts designed for either part number.

Q: Do both parts carry the same international certifications?

A: Yes. Both 0253002.M and 0253002.V are certified by CCC, CSA, PSE, QPL, TUV, and UR agencies. Both are ROHS3 compliant and carry Active product status.

Q: What is the difference between these two part numbers if all parameters are identical?

A: The part numbers differ only in their packaging designation suffix (M versus V). This distinction relates to packaging or distribution channel but does not affect electrical performance, mechanical compatibility, or functional characteristics.