BK/HTB-48I-R Equivalent & Substitute Parts

Part Overview

The BK/HTB-48I-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 by 1.26" length cartridge fuses (3AG, 1/4" x 1-1/4" SFE-20). The part maintains Active product status and is RoHS3 compliant with REACH unaffected classification. Substitute parts are identified when equivalent electrical ratings, mechanical dimensions, and mounting configurations are required for design flexibility, inventory optimization, or supply chain continuity.

Substiute Parts

BK/HTB-48I-R

Eaton - Electronics DivisionIn Stock: 737BK/HTB-48I-R Datasheet

Current PartRFQ

BK1-HTJ-606I

Eaton - Electronics DivisionIn Stock: 1749BK1-HTJ-606I Datasheet

SimilarRFQ

03420828H

Littelfuse Inc.In Stock: 406103420828H Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK/HTB-48I-R are identified based on strict alignment of the following critical parameters:

Electrical Compatibility Parameters:

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

Mechanical Compatibility Parameters:

• Fuse Size: 0.25" Dia x 1.26" L (6.35mm x 32mm)
• Mounting Type: Panel Mount
• Fuse Type: Cartridge

Termination Compatibility:

• Termination Style: Quick Connect - 0.250" (6.3mm)

Regulatory Compliance:

• RoHS3 Compliance
• REACH Unaffected Status

The substitute part BK1-HTJ-606I does not meet the current rating requirement (10 A versus 20 A) and therefore is not a direct equivalent. The direct substitute 03420828H by Littelfuse Inc. maintains all critical electrical and mechanical parameters with identical current rating, voltage rating, fuse size, mounting configuration, and termination style.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent Substitute:

The part 03420828H manufactured by Littelfuse Inc. is the direct equivalent substitute for BK/HTB-48I-R. Both components share identical electrical ratings (20 A, 250V), mechanical dimensions (0.25" Dia x 1.26" L), mounting configuration (panel mount), and termination style (quick connect 0.250"). Both maintain RoHS3 compliance and REACH unaffected status with Active product status. The contact material and finish specifications differ (Littelfuse specifies Brass with Nickel finish versus Eaton unspecified), but these variations do not affect functional equivalency for cartridge fuse holder applications.

Non-Equivalent Alternative:

The part BK1-HTJ-606I is not a functional substitute due to current rating mismatch (10 A versus 20 A required). Additionally, this component uses solder lug termination rather than quick connect termination, creating incompatibility with the original circuit design. This part should not be selected as a replacement for the BK/HTB-48I-R.

Frequently Asked Questions (FAQ)

Q: Can BK1-HTJ-606I be used as a substitute for BK/HTB-48I-R?

A: No. The BK1-HTJ-606I has a current rating of 10 A, which is insufficient for applications requiring 20 A. Additionally, the termination style differs (solder lug versus quick connect), creating mechanical incompatibility. This part is not suitable as a substitute.

Q: What makes 03420828H a direct equivalent to BK/HTB-48I-R?

A: The 03420828H maintains identical electrical specifications (20 A, 250V), fuse size (0.25" Dia x 1.26" L), mounting type (panel mount), and termination style (quick connect 0.250"). Both components are RoHS3 compliant and REACH unaffected with Active product status, ensuring functional interchangeability in circuit applications.

Q: Are there differences in contact materials between BK/HTB-48I-R and 03420828H?

A: Yes. The 03420828H specifies Brass contact material with Nickel finish, while the BK/HTB-48I-R does not provide contact material specifications. These material differences do not affect functional performance for standard cartridge fuse holder applications.

Q: What is the significance of the termination style difference between these parts?

A: Termination style determines how the fuse holder connects to the circuit. The BK/HTB-48I-R and 03420828H both use quick connect 0.250" termination, enabling direct substitution. The BK1-HTJ-606I uses solder lug termination, which requires different circuit board layout and assembly methods, making it incompatible with designs specified for quick connect termination.

Q: Are both substitute parts in active production?

A: Yes. Both BK1-HTJ-606I and 03420828H maintain Active product status. However, only 03420828H qualifies as a functional equivalent based on electrical and mechanical parameters.

Q: What inventory levels are available for these parts?

A: BK/HTB-48I-R has 702 pieces in stock, BK1-HTJ-606I has 1700 pieces in stock, and 03420828H has 3958 pieces in stock. Inventory levels should be verified at time of procurement.