Equivalent & Substitute Parts for 5SFP 500

Part Overview

The 5SFP 500 is a 500 mA, 250 V AC/DC fast-blow glass cartridge fuse in 5mm x 20mm (axial) through-hole package, manufactured by Bel Fuse Inc. This part is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs and field replacements where the original part is no longer readily available.

Substiute Parts

5SFP 500

Bel Fuse Inc.In Stock: 10125SFP 500 Datasheet

Current PartRFQ

5SFP 500-R

Bel Fuse Inc.In Stock: 21445SFP 500-R Datasheet

DirectRFQ

5MFP 500-R

Bel Fuse Inc.In Stock: 11405MFP 500-R Datasheet

Parametric EquivalentRFQ

0034.1513.PT

SCHURTER Inc.In Stock: 41140034.1513.PT Datasheet

DirectRFQ

0217.050MXEP

Littelfuse Inc.In Stock: 27390217.050MXEP Datasheet

SimilarRFQ

0217.500MXEP

Littelfuse Inc.In Stock: 11770217.500MXEP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict alignment with the following electrical and mechanical parameters:

• Current Rating: 500 mA (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: 5mm x 20mm (axial) form factor (exact match required)
• Mounting Type: Through Hole (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (minimum requirement)

Parts are grouped into two categories:

Direct Equivalents: Parts with identical electrical specifications and active product status, suitable for direct replacement.

Parametric Equivalents: Parts meeting all core electrical and mechanical parameters but with variations in secondary characteristics such as breaking capacity or melting I²t values. These remain functionally compatible within the specified electrical envelope.

Parameter Comparison

Engineering Selection Recommendations

5SFP 500-R (Bel Fuse Inc.): Direct equivalent with active product status. Identical electrical specifications and breaking capacity. RoHS3 compliant. Recommended as primary replacement for obsolete 5SFP 500. Higher inventory availability (2084 pcs) supports supply chain continuity.

0217.500MXEP (Littelfuse Inc.): Direct electrical equivalent with active product status. Identical current, voltage, and response characteristics. RoHS3 compliant with broader approval agency certifications (CCC, CE, CSA, K-MARK, SEMKO, UL, VDE). Suitable for applications requiring multi-standard compliance.

0034.1513.PT (SCHURTER Inc.): Direct electrical equivalent with active product status. Identical core specifications. cURus certification. Highest inventory availability (4021 pcs). Physical dimensions vary slightly (5.40mm x 22.50mm vs. 5.50mm x 21.00mm); verify mechanical fit in target application.

5MFP 500-R (Bel Fuse Inc.): Parametric equivalent meeting all electrical requirements. Differs in breaking capacity (200A vs. 35A) and melting I²t (0.122 vs. 0.4). Suitable where higher breaking capacity is beneficial. RoHS3 compliant and active product status.

Frequently Asked Questions (FAQ)

Q: Can 5SFP 500-R be used as a direct replacement for 5SFP 500?

A: Yes. 5SFP 500-R is a direct equivalent with identical electrical specifications (500 mA, 250 V AC/DC, fast-blow, 35A breaking capacity). The primary difference is product status: 5SFP 500 is obsolete while 5SFP 500-R is active. Both share the same series designation and package form factor.

Q: What is the difference between 5SFP 500-R and 5MFP 500-R?

A: Both are 500 mA, 250 V fast-blow fuses from Bel Fuse Inc. The key difference is breaking capacity: 5SFP 500-R has 35A breaking capacity with melting I²t of 0.4, while 5MFP 500-R has 200A breaking capacity with melting I²t of 0.122. Select 5MFP 500-R only if the application requires higher breaking capacity.

Q: Are there physical dimension differences between substitute parts?

A: Yes. Most substitutes conform to 5mm x 20mm (axial) specification. However, 0034.1513.PT has dimensions of 5.40mm x 22.50mm. Verify mechanical fit in the target PCB or fuse holder before selection.

Q: Which substitute has the best compliance certifications?

A: 0217.500MXEP (Littelfuse Inc.) carries the broadest approval agency certifications: CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE. Select this part for applications requiring multi-standard compliance.

Q: Are all substitutes RoHS3 compliant?

A: All active substitute parts listed are RoHS3 compliant. The original 5SFP 500 is RoHS non-compliant. Compliance status is a key factor in selecting replacements for new production.

Q: What is the inventory status of each substitute?

A: 5SFP 500-R: 2084 pcs; 5MFP 500-R: 1085 pcs; 0034.1513.PT: 4021 pcs; 0217.500MXEP: 1082 pcs. All substitutes have adequate stock availability.