Equivalent & Substitute Parts for 067204.5MXEP

Part Overview

The 067204.5MXEP is a 4.5 A 250 V AC/DC glass cartridge fuse with fast-blow response characteristics, designed for through-hole mounting in non-standard axial configuration. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system support and new designs. The substitute part maintains the same electrical ratings and mechanical form factor while offering improved availability and active product status.

Substiute Parts

067204.5MXEP

Littelfuse Inc.In Stock: 1012067204.5MXEP Datasheet

Current PartRFQ

087404.5MXEP

Littelfuse Inc.In Stock: 1086087404.5MXEP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 087404.5MXEP qualifies as a direct substitute for the 067204.5MXEP based on the following matched electrical and mechanical parameters:

• Current Rating: 4.5 A (identical)
• Voltage Rating (AC): 250 V (identical)
• Response Time: Fast Blow (identical)
• Mounting Type: Through Hole (identical)
• Package Configuration: Cartridge, Non-Standard (Axial) (identical)
• Breaking Capacity: 50 A @ Rated Voltage (identical)
• Regulatory Compliance: Both CSA/UL and cULus approved

The primary difference is the fuse element material: the substitute uses ceramic construction instead of glass. Both materials meet the specified electrical performance requirements and regulatory standards for this application class.

Parameter Comparison

Engineering Selection Recommendations

The 087404.5MXEP is the designated manufacturer substitute for the obsolete 067204.5MXEP. Both components carry equivalent regulatory certifications (CSA/UL and cULus respectively) and maintain ROHS3 compliance. The substitute part is currently in active production status with confirmed inventory availability, whereas the original part is obsolete.

Physical dimensions differ slightly between the two cartridges. The substitute is marginally smaller in diameter (0.142" vs 0.154") and length (0.394" vs 0.433"). Mechanical fit verification in the host application is required prior to implementation. The ceramic construction of the substitute exhibits a higher melting I²t value (14.42 vs 9.77) and lower DC cold resistance (0.0146 vs 0.017 Ohms), both within acceptable parameters for the specified 4.5 A, 250 V application class.

Frequently Asked Questions (FAQ)

Q: Can the 087404.5MXEP directly replace the 067204.5MXEP in existing designs?

A: Electrical compatibility is confirmed across all specified ratings and response characteristics. Physical dimensions require verification for mechanical fit within the host assembly, as the substitute cartridge is slightly smaller.

Q: What is the primary reason for substitution?

A: The 067204.5MXEP is classified as obsolete. The 087404.5MXEP is the manufacturer-recommended active alternative with identical electrical specifications and regulatory approvals.

Q: Are there regulatory compliance differences between the two parts?

A: Both parts meet applicable safety standards. The original carries CSA and UL approvals; the substitute carries cULus approval. Both are ROHS3 compliant and REACH unaffected.

Q: How do the physical dimensions affect substitution?

A: The substitute cartridge is smaller in both diameter and length. Mechanical clearance and mounting fixture compatibility must be confirmed for the specific application before implementation.

Q: What is the significance of the different melting I²t and DC cold resistance values?

A: These parameters reflect the ceramic versus glass construction difference. Both values remain within acceptable operating ranges for the 4.5 A, 250 V fast-blow fuse classification and do not affect functional equivalence for the specified application.