Equivalent & Substitute Parts for BK/SFE-30 Glass Cartridge Fuse

Part Overview

The BK/SFE-30 is a 30 A fast-blow glass cartridge fuse rated for 32 V DC operation, manufactured by Eaton - Electronics Division. This component is classified as Active product status and requires a dedicated fuse holder for installation. Glass cartridge fuses of this specification are used in DC power distribution circuits where fast response to overcurrent conditions is required. Identifying equivalent and substitute parts is necessary to ensure supply chain continuity, optimize inventory management, and maintain circuit protection performance across equivalent electrical and mechanical parameters.

Substiute Parts

BK/SFE-30

Eaton - Electronics DivisionIn Stock: 1243BK/SFE-30 Datasheet

Current PartRFQ

SFE-30

Eaton - Electronics DivisionIn Stock: 837SFE-30 Datasheet

Parametric EquivalentRFQ

0SFE030.V

Littelfuse Inc.In Stock: 14280SFE030.V Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/SFE-30 glass cartridge fuse is determined by strict equivalence across the following critical parameters:

Current Rating: All substitute parts must be rated for 30 A to maintain identical overcurrent protection characteristics.

Voltage Rating - DC: All substitute parts must be rated for minimum 32 V DC to ensure safe operation in the intended circuit.

Fuse Type and Response Time: All substitute parts must be glass cartridge fuses with fast-blow response characteristics to preserve the original circuit protection behavior.

Physical Dimensions: All substitute parts must conform to 0.250" diameter by 1.437" length (6.35mm x 36.50mm) to ensure mechanical compatibility with existing fuse holders.

Mounting Configuration: All substitute parts must require a holder cartridge, maintaining the same installation methodology as the original component.

The substitute parts identified below meet all these criteria and are therefore electrically and mechanically interchangeable with the BK/SFE-30.

Parameter Comparison

Engineering Selection Recommendations

BK/SFE-30 (Eaton - Electronics Division): This is the primary reference part with Active product status and UL approval agency certification. Current inventory is 1151 pieces. This part is RoHS non-compliant.

SFE-30 (Eaton - Electronics Division): This substitute part is manufactured by the same supplier as the main part and carries identical electrical and mechanical specifications. Product status is Active with UL approval. Current inventory is 767 pieces. This part provides direct substitution with no electrical performance differences. RoHS compliance status is not specified in the provided data.

0SFE030.V (Littelfuse Inc.): This substitute part meets all critical electrical parameters (30 A, 32 V DC) and physical dimensions. It is manufactured by Littelfuse Inc., an alternative qualified supplier. Product status is Active. This part includes 32 V AC rating in addition to the 32 V DC requirement. Current inventory is 1362 pieces. This part is ROHS3 Compliant, which may be advantageous for applications with RoHS compliance requirements. Approval agency is not specified in the provided data.

Selection between these parts should be based on supplier preference, inventory availability, and regulatory compliance requirements specific to the application.

Frequently Asked Questions (FAQ)

Q: Can the SFE-30 (Eaton) be used as a direct replacement for the BK/SFE-30?

A: Yes. Both parts are manufactured by Eaton - Electronics Division and share identical current rating (30 A), voltage rating (32 V DC), fuse type (cartridge, glass), response time (fast blow), physical dimensions (0.250" Dia x 1.437" L), and mounting requirements (requires holder). They are electrically and mechanically interchangeable.

Q: Is the 0SFE030.V (Littelfuse) compatible with the same fuse holder as the BK/SFE-30?

A: Yes. The 0SFE030.V has identical physical dimensions (0.250" Dia x 1.437" L) and mounting type (requires holder), ensuring mechanical compatibility with existing BK/SFE-30 fuse holders.

Q: What is the difference between the BK/SFE-30 and the 0SFE030.V regarding voltage ratings?

A: The BK/SFE-30 is specified for 32 V DC operation. The 0SFE030.V is rated for both 32 V AC and 32 V DC. For DC-only applications, both parts provide equivalent protection. The 0SFE030.V offers additional AC capability if needed for future application flexibility.

Q: Are there compliance differences between these substitute parts?

A: Yes. The BK/SFE-30 is RoHS non-compliant and carries UL approval. The 0SFE030.V is ROHS3 Compliant. Both parts are REACH Unaffected. Applications with RoHS compliance mandates should specify the 0SFE030.V. Applications requiring UL certification should verify the 0SFE030.V approval status with the supplier.

Q: Can these parts be used interchangeably in production?

A: All three parts meet the critical electrical and mechanical parameters for substitution. However, supplier qualification, approval agency requirements, and RoHS compliance mandates must be evaluated within the specific application context before implementing interchangeable use in production.