5SFP 100-R Equivalent & Substitute Parts

Part Overview

The 5SFP 100-R is a 100 mA, 250 V AC/DC fast-blow glass cartridge fuse with a 5mm x 20mm axial package manufactured by Bel Fuse Inc. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new design implementations. Substitute parts must maintain identical electrical ratings, mechanical dimensions, and functional characteristics to ensure direct compatibility in existing circuit designs.

Substiute Parts

5SFP 100-R

Bel Fuse Inc.In Stock: 9645SFP 100-R Datasheet

Current PartRFQ

BK/S500-V-100-R

Eaton - Electronics DivisionIn Stock: 1033BK/S500-V-100-R Datasheet

DirectRFQ

0217.100MXEP

Littelfuse Inc.In Stock: 11530217.100MXEP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 5SFP 100-R are qualified based on the following mandatory parameters:

• Current Rating: 100 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) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Breaking Capacity @ Rated Voltage: 35A (exact match required)

Two substitute parts meet these criteria:

1. BK/S500-V-100-R (Eaton - Electronics Division, S500 Series) – Direct manufacturer equivalent with active product status
2. 0217.100MXEP (Littelfuse Inc., 217 Series) – Similar specification equivalent with active product status

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are functionally equivalent to the 5SFP 100-R based on electrical and mechanical specifications. Selection between them should be based on the following factors:

BK/S500-V-100-R (Eaton) is recommended where active product status and immediate availability are priorities. This part carries active product status and maintains RoHS compliance. Inventory availability is confirmed at 931 pieces.

0217.100MXEP (Littelfuse) is recommended where extended regulatory compliance is required. This part carries multiple approval agencies (CCC, CE, CSA, K-MARK, SEMKO, UL, VDE) and ROHS3 compliance, providing broader certification coverage. Inventory availability is confirmed at 1064 pieces.

Both parts are suitable for direct substitution in applications requiring 100 mA, 250 V AC/DC fast-blow protection in 5mm x 20mm through-hole configurations.

Frequently Asked Questions (FAQ)

Q: Can BK/S500-V-100-R be used as a direct replacement for 5SFP 100-R?

A: Yes. Both parts share identical current rating (100 mA), voltage rating (250 V AC), fuse type (cartridge glass), response time (fast blow), package dimensions (5mm x 20mm axial), and breaking capacity (35A). Physical and electrical compatibility is confirmed.

Q: Can 0217.100MXEP be used as a direct replacement for 5SFP 100-R?

A: Yes. Both parts share identical current rating (100 mA), voltage rating (250 V AC), fuse type (cartridge glass), response time (fast blow), package dimensions (5mm x 20mm axial), and breaking capacity (35A). Physical and electrical compatibility is confirmed.

Q: What is the difference between the two substitute parts?

A: Both substitutes meet all mandatory electrical and mechanical parameters. Differences exist in melting I²t values (0.003 for Eaton vs. 0.0045 for Littelfuse), DC cold resistance (3.8 Ohms for Eaton vs. 5.6965 Ohms for Littelfuse), and regulatory certifications. Littelfuse carries more extensive approval agencies.

Q: Are there dimensional variations between the main part and substitutes?

A: Minor dimensional variations exist within the 5mm x 20mm package specification. The 5SFP 100-R measures 0.217" Dia x 0.827" L (5.50mm x 21.00mm), BK/S500-V-100-R measures 0.218" Dia x 0.831" L (5.54mm x 21.10mm), and 0217.100MXEP measures 0.236" Dia x 0.886" L (6.00mm x 22.50mm). These variations remain within standard 5mm x 20mm axial package tolerances and do not affect through-hole mounting compatibility.

Q: Which substitute part has better regulatory coverage?

A: 0217.100MXEP (Littelfuse) carries approval from CCC, CE, CSA, K-MARK, SEMKO, UL, and VDE. BK/S500-V-100-R (Eaton) does not specify approval agencies. For applications requiring specific regulatory certifications, 0217.100MXEP provides broader compliance documentation.

Q: Are both substitute parts currently available?

A: Yes. BK/S500-V-100-R has 931 pieces in stock with active product status. 0217.100MXEP has 1064 pieces in stock with active product status. Both are available for immediate procurement.