Bel Fuse Inc. 5MF 700 Equivalent & Substitute Parts

Part Overview

The Bel Fuse Inc. 5MF 700 is a 700 mA, 250 V AC/DC fast-blow glass cartridge fuse in a 5mm x 20mm package format. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing system maintenance and new designs. The 5MF 700-R serves as the direct parametric equivalent with active product status.

Substiute Parts

5MF 700

Bel Fuse Inc.In Stock: 7665MF 700 Datasheet

Current PartRFQ

5MF 700-R

Bel Fuse Inc.In Stock: 18505MF 700-R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5MF 700 is determined by the following critical parameters:

• Current Rating: 700 mA (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Package / Case: 5mm x 20mm (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Breaking Capacity: 200A (exact match required)

The 5MF 700-R meets all substitution criteria. Both parts share identical electrical and mechanical specifications within the allowed parameter set. The primary distinction is product status: the original 5MF 700 is obsolete, while the 5MF 700-R maintains active status.

Parameter Comparison

Engineering Selection Recommendations

The 5MF 700-R is the direct substitute for the obsolete 5MF 700. Both components share identical electrical and mechanical specifications across all critical parameters. Selection of the 5MF 700-R is appropriate for applications requiring the 700 mA, 250 V AC/DC fast-blow cartridge fuse in 5mm x 20mm format.

The 5MF 700-R provides enhanced compliance status: it carries ROHS3 certification compared to the non-compliant status of the original part, and includes cULus approval in addition to CE and CSA certifications. These factors support the use of 5MF 700-R in new designs and system updates.

Frequently Asked Questions (FAQ)

Q: Can the 5MF 700-R directly replace the 5MF 700 in existing applications?

A: Yes. The 5MF 700-R meets all electrical and mechanical specifications of the 5MF 700. Both components are 700 mA, 250 V AC/DC fast-blow glass cartridge fuses in 5mm x 20mm packages with identical breaking capacity and operating temperature ranges. No circuit modifications are required.

Q: What is the difference between the 5MF 700 and 5MF 700-R?

A: The primary differences are product status and compliance certifications. The 5MF 700 is obsolete and RoHS non-compliant. The 5MF 700-R is active, ROHS3 compliant, and carries cULus approval. Electrical and mechanical parameters are identical.

Q: Are there any compatibility concerns with the 5mm x 20mm package format?

A: No. Both parts use the identical 5mm x 20mm cartridge format and require the same holder. Physical and electrical compatibility is assured.

Q: What certifications apply to the 5MF 700-R?

A: The 5MF 700-R carries CE, CSA, and cULus approvals. It is ROHS3 compliant and REACH unaffected.