Littelfuse 0325005.MXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0325005.MXP is a 5 A, 250 V AC/DC ceramic cartridge fuse with slow-blow response characteristics, designed for through-hole mounting in 3AB/3AG package format. This component is classified as Active product status with full compliance to CE, CSA, PSE, and UL approval agencies. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and approval certifications align with the original specification, enabling direct replacement in circuit protection applications.

Substiute Parts

0325005.MXP

Littelfuse Inc.In Stock: 10440325005.MXP Datasheet

Current PartRFQ

0325005.HXP

Littelfuse Inc.In Stock: 10310325005.HXP Datasheet

Parametric EquivalentRFQ

BK/MDA-V-5-R

Eaton - Electronics DivisionIn Stock: 1249BK/MDA-V-5-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Littelfuse 0325005.MXP are classified based on strict electrical and mechanical parameter alignment:

Parametric Equivalent (0325005.HXP): Identical current rating (5 A), voltage rating (250 V AC), fuse type (Cartridge, Ceramic), response time (Slow Blow), and package dimensions (3AB, 3AG, 1/4" x 1-1/4"). Manufactured by Littelfuse Inc. with matching approval agencies (CE, CSA, PSE, UL). This substitute maintains all critical electrical characteristics and physical form factor.

Manufacturer Recommended (BK/MDA-V-5-R): Manufactured by Eaton - Electronics Division. Matches current rating (5 A), voltage rating (250 V AC), fuse type (Cartridge, Ceramic), response time (Slow Blow), and package dimensions (3AB, 3AG, 1/4" x 1-1/4"). Approved by CE, CSA, and UL. Substitution is valid based on electrical ratings and mechanical compatibility, though secondary parameters (Breaking Capacity, Melting I²t, DC Cold Resistance) differ.

Parameter Comparison

Engineering Selection Recommendations

0325005.HXP (Littelfuse): This substitute is the primary equivalent choice. It maintains identical electrical ratings, mechanical dimensions, response characteristics, and approval certifications (CE, CSA, PSE, UL). The matching Melting I²t value (25) and DC Cold Resistance (0.0522 Ohms) ensure thermal and electrical behavior consistency with the original part. Both parts are Active status with ROHS3 compliance.

BK/MDA-V-5-R (Eaton): This substitute is valid for applications where the lower Breaking Capacity (200 A versus 400 A) and higher Melting I²t (65 versus 25) are acceptable within the circuit design. The reduced DC Cold Resistance (0.023 Ohms) may affect circuit behavior in low-impedance applications. Approval coverage includes CE, CSA, and UL; PSE certification is not listed. Selection should be based on specific circuit requirements and regulatory compliance needs.

Frequently Asked Questions (FAQ)

Q: Can 0325005.HXP be used as a direct replacement for 0325005.MXP? A: Yes. Both parts share identical current rating (5 A), voltage rating (250 V AC), fuse type (Cartridge, Ceramic), response time (Slow Blow), package dimensions (3AB, 3AG, 1/4" x 1-1/4"), and approval certifications (CE, CSA, PSE, UL). Electrical and mechanical compatibility is complete.

Q: What are the key differences between 0325005.MXP and BK/MDA-V-5-R? A: Primary differences are Breaking Capacity (400 A versus 200 A), Melting I²t (25 versus 65), and DC Cold Resistance (0.0522 Ohms versus 0.023 Ohms). Both maintain the same current rating, voltage rating, fuse type, response time, and package format. PSE certification is present on 0325005.MXP but not listed for BK/MDA-V-5-R.

Q: Are all substitute parts ROHS3 compliant? A: Yes. Both 0325005.HXP and BK/MDA-V-5-R are ROHS3 compliant, matching the original 0325005.MXP specification.

Q: What is the significance of the 3AB/3AG package designation? A: The 3AB/3AG package format specifies the physical dimensions (1/4" x 1-1/4" or 6.99mm x 32.72mm) and mechanical form factor for through-hole mounting. All listed substitutes maintain this package specification, ensuring mechanical interchangeability in existing circuit board designs.

Q: Does the difference in Melting I²t affect substitution suitability? A: Melting I²t is a thermal characteristic that influences fuse response time under fault conditions. The 0325005.HXP maintains identical Melting I²t (25) to the original part. The BK/MDA-V-5-R has a higher value (65), which may result in different thermal response characteristics and should be evaluated against specific circuit protection requirements.