BK/SFE-6 Equivalent & Substitute Parts

Part Overview

The BK/SFE-6 is a 6 A fast-blow glass cartridge fuse rated for 32 V DC operation, manufactured by Eaton - Electronics Division. This component requires a dedicated fuse holder for installation and is classified as a non-standard cartridge format. The part maintains active product status with 1126 units in current inventory. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and functional characteristics align with the original specification, enabling direct replacement in applications where the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

BK/SFE-6

Eaton - Electronics DivisionIn Stock: 1172BK/SFE-6 Datasheet

Current PartRFQ

SFE-6

Eaton - Electronics DivisionIn Stock: 723SFE-6 Datasheet

Parametric EquivalentRFQ

0SFE006.V

Littelfuse Inc.In Stock: 8990SFE006.V Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/SFE-6 is determined by strict alignment of the following parameters:

Critical Matching Parameters:

• Current Rating: 6 A
• Voltage Rating - DC: 32 V
• Fuse Type: Cartridge, Glass
• Response Time: Fast Blow
• Physical Dimensions: 0.250" Dia x 0.748" L (6.35mm x 19.00mm)
• Mounting Type: Requires Holder
• Package / Case: Cartridge, Non-Standard

All identified substitute parts maintain identical values across these parameters, ensuring mechanical and electrical compatibility within the original application circuit. Substitutes are grouped by manufacturer and part number designation while preserving functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection - BK/SFE-6 (Eaton): The original part number maintains UL approval certification and represents the baseline specification. Use this part number when sourcing from Eaton inventory and when UL certification is a documented requirement in the application.

Secondary Selection - SFE-6 (Eaton): This Eaton variant carries identical electrical and mechanical specifications to BK/SFE-6, with UL approval maintained. Selection of this part number is appropriate when Eaton sourcing is preferred and inventory availability of the primary designation is constrained.

Alternative Selection - 0SFE006.V (Littelfuse): This Littelfuse part meets all critical electrical parameters (6 A, 32 V DC) and physical dimensions. The 0SFE006.V additionally supports 32 V AC operation and carries ROHS3 compliance certification. This part is suitable for applications where RoHS compliance is required or when Littelfuse supply chain access is preferred. Note that UL approval status is not specified for this part number.

All three parts are active products with current inventory availability and are suitable for direct substitution based on electrical and mechanical parameter equivalence.

Frequently Asked Questions (FAQ)

Q: Can SFE-6 directly replace BK/SFE-6 in the same circuit?

A: Yes. Both parts are manufactured by Eaton, carry identical current ratings (6 A), voltage ratings (32 V DC), response characteristics (fast blow), and physical dimensions (0.250" Dia x 0.748" L). Both hold UL approval. Direct substitution is supported by parameter equivalence.

Q: What is the difference between BK/SFE-6 and 0SFE006.V?

A: The primary electrical and mechanical specifications are identical: 6 A current rating, 32 V DC voltage rating, fast-blow response, and cartridge dimensions. The 0SFE006.V is manufactured by Littelfuse rather than Eaton and includes 32 V AC rating capability and ROHS3 compliance. UL approval is specified for BK/SFE-6 but not documented for 0SFE006.V.

Q: Does the 0SFE006.V require a different fuse holder than BK/SFE-6?

A: No. Both parts share identical physical dimensions (0.250" Dia x 0.748" L) and cartridge format, requiring the same non-standard holder type. Mechanical compatibility is maintained.

Q: Which substitute part should be selected for RoHS-compliant applications?

A: The 0SFE006.V (Littelfuse) carries ROHS3 compliance certification. The BK/SFE-6 and SFE-6 are documented as RoHS non-compliant. Selection of 0SFE006.V is required when RoHS compliance is a design or regulatory requirement.

Q: Are all three parts currently available?

A: Yes. BK/SFE-6 has 1126 units in stock, SFE-6 has 668 units in stock, and 0SFE006.V has 840 units in stock. All parts maintain active product status.

Q: Can 0SFE006.V be used in applications rated only for DC operation?

A: Yes. The 0SFE006.V supports both 32 V AC and 32 V DC operation. It is suitable for DC-only applications, as the AC rating capability does not restrict its use in DC circuits.