BK/HTB-26I Cartridge Fuse Holder Equivalent & Substitute Parts

Part Overview

The BK/HTB-26I is a cartridge fuse holder manufactured by Eaton - Electronics Division, designed for panel mount applications with a 20 A current rating at 250V. This single-circuit holder accommodates 0.25" diameter by 1.26" length cartridge fuses (6.35mm x 32mm) and features quick connect termination. The part maintains Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and mounting configurations are required for component sourcing flexibility or inventory management.

Substiute Parts

BK/HTB-26I

Eaton - Electronics DivisionIn Stock: 943BK/HTB-26I Datasheet

Current PartRFQ

BK/HTB-26I-R

Eaton - Electronics DivisionIn Stock: 3898BK/HTB-26I-R Datasheet

DirectRFQ

03453LF8H

Littelfuse Inc.In Stock: 179303453LF8H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK/HTB-26I are identified based on strict equivalence across the following critical parameters:

Electrical Equivalence:

• Current Rating: 20 A
• Voltage Rating: 250V
• Number of Circuits: 1

Mechanical Equivalence:

• Fuse Size: 0.25" Dia x 1.26" L (6.35mm x 32mm)
• Mounting Type: Panel Mount
• Termination Style: Quick Connect - 0.250" (6.3mm)
• Fuse Type: Cartridge

Compliance Equivalence:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Substitutes are grouped into two categories: direct manufacturer equivalents (same manufacturer, different packaging) and cross-manufacturer alternatives (different manufacturer, identical functional specifications).

Parameter Comparison

Engineering Selection Recommendations

BK/HTB-26I-R (Eaton - Electronics Division): This part is a direct manufacturer equivalent to the BK/HTB-26I, differing only in packaging format (Box versus Bulk). Both parts are manufactured by Eaton - Electronics Division within the HTB series and maintain identical electrical and mechanical specifications. Selection between BK/HTB-26I and BK/HTB-26I-R is determined by packaging requirements and inventory availability. BK/HTB-26I-R currently maintains higher inventory (3832 Pcs) compared to the main part (875 Pcs).

03453LF8H (Littelfuse Inc.): This part is a cross-manufacturer substitute manufactured by Littelfuse Inc. within the 345 series. All critical electrical parameters (20 A, 250V, single circuit), mechanical dimensions (0.25" Dia x 1.26" L), and mounting specifications (panel mount, quick connect termination) are equivalent to the BK/HTB-26I. Both parts are ROHS3 compliant and REACH unaffected. The 03453LF8H specifies copper alloy contact material with tin finish, whereas contact material and finish are not specified for the BK/HTB-26I. All three parts are Active status products suitable for direct substitution based on provided specifications.

Frequently Asked Questions (FAQ)

Q: Can BK/HTB-26I-R be used as a direct replacement for BK/HTB-26I?

A: Yes. BK/HTB-26I-R is electrically and mechanically equivalent to BK/HTB-26I. Both are manufactured by Eaton - Electronics Division with identical current rating (20 A), voltage rating (250V), fuse size (0.25" Dia x 1.26" L), mounting type (panel mount), and termination style (quick connect 0.250"). The only difference is packaging format (Box versus Bulk).

Q: Is the Littelfuse 03453LF8H compatible with the same fuse cartridges as the Eaton BK/HTB-26I?

A: Yes. The 03453LF8H accommodates the same fuse size specification: 0.25" diameter by 1.26" length (6.35mm x 32mm) cartridge fuses, specifically 3AG and 1/4" x 1-1/4" (SFE-20) types. Mechanical and electrical compatibility is maintained across all three parts.

Q: What are the key parameters that determine substitutability for this fuse holder?

A: Substitutability is determined by equivalence in current rating (20 A), voltage rating (250V), fuse size (0.25" Dia x 1.26" L), number of circuits (1), mounting type (panel mount), fuse type (cartridge), and termination style (quick connect 0.250"). All three parts meet these criteria.

Q: Are all three parts RoHS and REACH compliant?

A: Yes. BK/HTB-26I, BK/HTB-26I-R, and 03453LF8H are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Does packaging format affect electrical or mechanical performance?

A: No. Packaging format (Bulk versus Box) affects only handling, storage, and ordering logistics. Electrical and mechanical performance of BK/HTB-26I and BK/HTB-26I-R is identical.

Q: What is the difference between the Eaton HTB series and Littelfuse 345 series fuse holders?

A: Both series are functionally equivalent for this application. The HTB series is Eaton's designation, and the 345 series is Littelfuse's designation. Electrical specifications, mechanical dimensions, and mounting configurations are identical across both series for these specific part numbers.