BK/HTB-24I-R Equivalent & Substitute Parts

Part Overview

The BK/HTB-24I-R 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 0.25" diameter x 1.26" length cartridge fuses (6.35mm x 32mm). The product maintains Active status and is ROHS3 compliant, making it suitable for current industrial and commercial applications. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and mounting configurations are available from alternative manufacturers or product lines.

Substiute Parts

BK/HTB-24I-R

Eaton - Electronics DivisionIn Stock: 834BK/HTB-24I-R Datasheet

Current PartRFQ

BK16-HTJ-601I

Eaton - Electronics DivisionIn Stock: 1824BK16-HTJ-601I Datasheet

SimilarRFQ

03420028H

Littelfuse Inc.In Stock: 122103420028H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK/HTB-24I-R are identified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Voltage Rating: 250V
• Fuse Type: Cartridge
• Number of Circuits: 1
• Mounting Type: Panel Mount
• Fuse Size: 0.25" Dia x 1.26" L (6.35mm x 32mm)
• Current Rating: 20 A

Substitution Logic: Parts are grouped as substitutes when they maintain identical electrical ratings (20 A, 250V), accept the same fuse dimensions (0.25" x 1.26"), and provide equivalent panel mount functionality. Variations in termination style, contact material, and contact finish do not prevent substitution provided the electrical and mechanical interfaces remain compatible with the intended application.

Parameter Comparison

Engineering Selection Recommendations

Full Equivalent Substitute: The part 03420028H (Littelfuse Inc.) provides complete electrical and mechanical equivalence to the BK/HTB-24I-R. Both components share identical current rating (20 A), voltage rating (250V), fuse dimensions (0.25" x 1.26"), and termination style (Quick Connect - 0.187"). Both maintain Active product status and ROHS3 compliance. This part is suitable for direct substitution in applications where the BK/HTB-24I-R is specified.

Limited Compatibility Substitute: The part BK16-HTJ-601I (Eaton - Electronics Division) differs in current rating (10 A versus 20 A) and termination style (Solder Lug versus Quick Connect). While this part shares the same manufacturer, voltage rating (250V), fuse type (Cartridge), and mounting configuration (Panel Mount), the reduced current rating and different termination method restrict its use to applications requiring 10 A protection with solder-based connections. This part is not a direct substitute for 20 A applications.

Both substitute parts maintain Active product status and appropriate compliance certifications (RoHS/ROHS3, REACH Unaffected, ECCN EAR99).

Frequently Asked Questions (FAQ)

Q: Can the 03420028H replace the BK/HTB-24I-R in all applications? A: Yes. The 03420028H maintains identical electrical ratings (20 A, 250V), fuse dimensions (0.25" x 1.26"), and termination style (Quick Connect - 0.187"). Both are panel mount cartridge fuse holders with single-circuit configuration. Substitution is valid for equivalent circuit protection requirements.

Q: Why is the BK16-HTJ-601I listed as a substitute if it has a different current rating? A: The BK16-HTJ-601I is listed in the substitute field but is not a full equivalent due to its 10 A current rating versus the 20 A rating of the BK/HTB-24I-R. This part is suitable only for applications requiring 10 A protection. The different termination style (Solder Lug) also requires circuit board design modifications compared to the Quick Connect termination of the main part.

Q: What is the significance of the termination style difference between these parts? A: Termination style determines the connection method to the circuit board or electrical system. The BK/HTB-24I-R and 03420028H both use Quick Connect - 0.187" (4.7mm) termination, allowing direct connection to standard quick-connect receptacles. The BK16-HTJ-601I uses Solder Lug termination, requiring soldered connections to the circuit board. These are not interchangeable without circuit redesign.

Q: Are there compliance differences between the main part and the Littelfuse substitute? A: Both the BK/HTB-24I-R and 03420028H are ROHS3 compliant and REACH Unaffected. The Littelfuse part lists Moisture Sensitivity Level as Not Applicable, while the Eaton part specifies MSL 1 (Unlimited). Both are suitable for standard industrial applications without moisture sensitivity constraints.

Q: What fuse types are compatible with these holders? A: All listed parts accept 3AG cartridge fuses with 0.25" diameter and 1.26" length (6.35mm x 32mm) dimensions. The BK/HTB-24I-R and 03420028H are rated for 20 A fuses, while the BK16-HTJ-601I is rated for 10 A fuses. Fuse selection must match the holder's current rating.