Equivalent & Substitute Parts for BK/HTB-36I Cartridge Fuse Holder

Part Overview

The BK/HTB-36I is a cartridge fuse holder manufactured by Eaton - Electronics Division, designed for 20 A, 250V single-circuit panel mount applications. This component accommodates 0.25" diameter by 1.26" length cartridge fuses (6.35mm x 32mm) with quick connect 0.250" (6.3mm) termination. The part is currently classified as obsolete, necessitating identification of equivalent alternatives for ongoing system maintenance and new designs. Substitute parts must maintain identical electrical ratings, mechanical dimensions, and mounting characteristics to ensure direct functional replacement.

Substiute Parts

BK/HTB-36I

Eaton - Electronics DivisionIn Stock: 879BK/HTB-36I Datasheet

Current PartRFQ

BK/HTB-36I-R

Eaton - Electronics DivisionIn Stock: 1209BK/HTB-36I-R Datasheet

DirectRFQ

03453LS8H

Littelfuse Inc.In Stock: 104303453LS8H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/HTB-36I is determined by strict equivalence across the following parameters:

• Electrical Ratings: Current rating of 20 A and voltage rating of 250V must be identical
• Mechanical Dimensions: Fuse size must be 0.25" diameter by 1.26" length (6.35mm x 32mm)
• Fuse Type and Standard: Cartridge type compatible with 3AG, 1/4" x 1-1/4" (SFE-20) standard
• Circuit Configuration: Single-circuit (1 circuit) design
• Mounting Configuration: Panel mount orientation with quick connect 0.250" (6.3mm) termination

Two substitute parts meet these criteria:

1. BK/HTB-36I-R (Eaton - Electronics Division): Direct manufacturer equivalent with active product status
2. 03453LS8H (Littelfuse Inc.): Cross-manufacturer equivalent with active product status

Both substitutes maintain all electrical and mechanical parameters identical to the main part.

Parameter Comparison

Engineering Selection Recommendations

BK/HTB-36I-R is the primary substitute for obsolete BK/HTB-36I applications. This part is manufactured by the same supplier (Eaton - Electronics Division), maintains identical electrical and mechanical specifications, and carries active product status with ROHS3 compliance. The BK/HTB-36I-R is available in box packaging with 1153 units in stock.

03453LS8H (Littelfuse Inc.) serves as a cross-manufacturer alternative when BK/HTB-36I-R availability is constrained. This part maintains all critical electrical and mechanical parameters, carries active product status, and is ROHS3 compliant. The 03453LS8H is supplied in bulk packaging with 1015 units in stock and includes specified contact material (Copper Alloy) and contact finish (Tin).

Both substitutes are suitable for direct replacement in applications requiring 20 A, 250V single-circuit cartridge fuse holder functionality with panel mount configuration.

Frequently Asked Questions (FAQ)

Q: Can BK/HTB-36I-R be used as a direct replacement for BK/HTB-36I?

A: Yes. BK/HTB-36I-R maintains identical electrical ratings (20 A, 250V), mechanical dimensions (0.25" Dia x 1.26" L), fuse type (cartridge), circuit configuration (1 circuit), mounting type (panel mount), and termination style (quick connect 0.250"). The primary difference is product status (active versus obsolete) and RoHS compliance (ROHS3 compliant versus non-compliant).

Q: What is the difference between BK/HTB-36I-R and 03453LS8H?

A: Both parts are electrically and mechanically equivalent. The primary differences are manufacturer (Eaton versus Littelfuse), packaging format (box versus bulk), inventory levels, and specified contact material/finish. The 03453LS8H includes documented contact material (Copper Alloy) and finish (Tin), while the BK/HTB-36I-R does not specify these parameters in the provided data.

Q: Are there packaging considerations when selecting a substitute?

A: Yes. BK/HTB-36I-R is supplied in box packaging, while 03453LS8H is supplied in bulk packaging. Selection should account for procurement requirements and inventory management practices.

Q: Do both substitutes support the same fuse standard?

A: Yes. Both BK/HTB-36I-R and 03453LS8H are compatible with 3AG, 1/4" x 1-1/4" (SFE-20) cartridge fuses, identical to the original BK/HTB-36I specification.

Q: What is the significance of RoHS compliance for these parts?

A: BK/HTB-36I is RoHS non-compliant, while both substitutes (BK/HTB-36I-R and 03453LS8H) are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the compliant substitutes are required.