5MT 7-R Equivalent & Substitute Parts

Part Overview

The 5MT 7-R is a 7A 125VAC glass cartridge fuse manufactured by Bel Fuse Inc., designed for applications requiring medium-blow response characteristics in a 5mm x 20mm form factor. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability for new production and field replacements.

Substiute Parts

5MT 7-R

Bel Fuse Inc.In Stock: 10115MT 7-R Datasheet

Current PartRFQ

0233007.MXP

Littelfuse Inc.In Stock: 18790233007.MXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 5MT 7-R is determined by strict equivalence across the following critical parameters:

• Current Rating: 7 A (exact match required)
• Voltage Rating (AC): 125 V (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Medium Blow (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (minimum requirement)
• RoHS Compliance: ROHS3 Compliant (regulatory requirement)

The substitute part 0233007.MXP from Littelfuse Inc. meets all critical substitution criteria and is classified as active product status, providing supply continuity for the obsolete 5MT 7-R.

Parameter Comparison

Engineering Selection Recommendations

The 0233007.MXP from Littelfuse Inc. is the direct equivalent substitute for the obsolete 5MT 7-R. Selection is based on:

• Identical electrical ratings (7A, 125VAC)
• Identical mechanical form factor (5mm x 20mm cartridge)
• Identical response characteristic (Medium Blow)
• Active product status ensuring ongoing availability
• Full regulatory compliance (CE, PSE, UL certifications)
• ROHS3 compliance alignment with environmental standards

The substitute part maintains functional and physical compatibility with existing 5mm x 20mm fuse holders and circuit protection applications originally designed for the 5MT 7-R.

Frequently Asked Questions (FAQ)

Q: Can the 0233007.MXP be used as a direct replacement for the 5MT 7-R?

A: Yes. Both parts are 7A 125VAC glass cartridge fuses in 5mm x 20mm form factor with medium-blow response. They are mechanically and electrically compatible for use in the same fuse holder assemblies.

Q: Are there dimensional differences between these parts?

A: Minor dimensional variations exist. The 5MT 7-R has a diameter of 0.201" (5.10mm), while the 0233007.MXP has a diameter of 0.205" (5.20mm). Both fit standard 5mm x 20mm fuse holders. Length is identical at 0.787" (20.00mm).

Q: What certifications does the substitute part carry?

A: The 0233007.MXP carries CE, PSE, and UL approvals, providing broader regulatory coverage than the original 5MT 7-R (CE, PSE only).

Q: Is the substitute part RoHS compliant?

A: Yes. The 0233007.MXP is ROHS3 compliant, matching the environmental compliance status of the original part.

Q: What is the availability status of the substitute part?

A: The 0233007.MXP is classified as active product, ensuring continued supply and availability for new designs and field replacements.