Equivalent & Substitute Parts for BK/HTB-32I

Part Overview

The BK/HTB-32I is a cartridge fuse holder manufactured by Eaton - Electronics Division, rated for 20 A at 250V with panel mount configuration. This component is designed for single-circuit applications using 3AG cartridge fuses (0.25" Dia x 1.26" L). The BK/HTB-32I is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing maintenance and production requirements for systems utilizing this fuse holder.

Substiute Parts

BK/HTB-32I

Eaton - Electronics DivisionIn Stock: 830BK/HTB-32I Datasheet

Current PartRFQ

BK/HTB-32I-R

Eaton - Electronics DivisionIn Stock: 2382BK/HTB-32I-R Datasheet

DirectRFQ

03453LS2H

Littelfuse Inc.In Stock: 92903453LS2H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK/HTB-32I are identified based on electrical and mechanical parameter equivalence. The substitution criteria are:

Electrical Parameters:

• Current Rating: 20 A (exact match required)
• Voltage Rating: 250V (exact match required)

Mechanical Parameters:

• Fuse Size: 0.25" Dia x 1.26" L (6.35mm x 32mm) (exact match required)
• Fuse Type: Cartridge (exact match required)
• Number of Circuits: 1 (exact match required)
• Mounting Type: Panel Mount (exact match required)
• Termination Style: Quick Connect - 0.187" (4.7mm) (exact match required)
• Compatible Fuse Standard: 3AG, 1/4" x 1-1/4" (SFE-20) (exact match required)

All identified substitute parts meet these criteria and are therefore electrically and mechanically interchangeable with the BK/HTB-32I.

Parameter Comparison

Engineering Selection Recommendations

BK/HTB-32I-R (Eaton - Electronics Division): This part is the direct manufacturer equivalent from Eaton. It maintains identical electrical and mechanical specifications to the BK/HTB-32I while offering active product status and ROHS3 compliance. This part is recommended for applications requiring continued support from the original manufacturer and compliance with current environmental regulations.

03453LS2H (Littelfuse Inc.): This part is a cross-manufacturer substitute from Littelfuse Inc. It meets all electrical and mechanical parameter requirements and carries active product status with ROHS3 compliance. The contact material is specified as Copper Alloy with Tin finish. This part is suitable for applications where multi-source component qualification is acceptable and where Littelfuse supply chain availability is preferred.

Both substitute parts are electrically and mechanically interchangeable with the BK/HTB-32I and provide improved compliance posture compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can BK/HTB-32I-R be used as a direct replacement for BK/HTB-32I? A: Yes. BK/HTB-32I-R is electrically and mechanically identical to BK/HTB-32I. Both are manufactured by Eaton and share the same electrical ratings (20 A, 250V), fuse size (0.25" Dia x 1.26" L), mounting configuration (panel mount), and termination style (Quick Connect - 0.187"). The primary difference is product status: BK/HTB-32I-R is active and ROHS3 compliant.

Q: Is 03453LS2H compatible with the BK/HTB-32I application? A: Yes. 03453LS2H meets all electrical and mechanical requirements: 20 A current rating, 250V voltage rating, identical fuse size, cartridge type, single circuit, panel mount configuration, and Quick Connect termination. It is manufactured by Littelfuse Inc. and carries ROHS3 compliance.

Q: What are the key parameters that determine substitutability? A: Substitutability is determined by exact matching of: current rating (20 A), voltage rating (250V), fuse size (0.25" Dia x 1.26" L), fuse type (cartridge), number of circuits (1), mounting type (panel mount), termination style (Quick Connect - 0.187"), and compatible fuse standard (3AG, 1/4" x 1-1/4").

Q: Are there packaging differences between these parts? A: BK/HTB-32I is packaged as individual units. BK/HTB-32I-R and 03453LS2H are supplied in bulk packaging. Packaging does not affect electrical or mechanical compatibility.

Q: What is the inventory availability for each part? A: BK/HTB-32I has 743 pieces in stock. BK/HTB-32I-R has 2349 pieces in stock. 03453LS2H has 828 pieces in stock. All are listed as new original inventory.

Q: Do these parts have different compliance certifications? A: BK/HTB-32I is RoHS non-compliant. Both BK/HTB-32I-R and 03453LS2H are ROHS3 compliant. Both substitute parts are REACH unaffected. For applications requiring environmental compliance, either substitute part is suitable.