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

Part Overview

The BK/HBW-I is a cartridge fuse holder manufactured by Eaton - Electronics Division, designed for 16 A, 250V applications in single-circuit PCB through-hole configurations. This component accommodates 3AG fuse types with dimensions of 0.25" diameter by 1.26" length (6.35mm x 32mm).

The BK/HBW-I carries an obsolete product status. Locating equivalent substitute parts is necessary to support ongoing maintenance, repair, and production requirements where this component is specified in existing designs or legacy systems.

Substiute Parts

BK/HBW-I

Eaton - Electronics DivisionIn Stock: 746BK/HBW-I Datasheet

Current PartRFQ

BK/HBW-I-R

Eaton - Electronics DivisionIn Stock: 771BK/HBW-I-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Current Rating: 16 A (exact match required)
• Voltage Rating: 250V (exact match required)
• Fuse Size: 0.25" Dia x 1.26" L / 6.35mm x 32mm (exact match required)
• Fuse Type: Cartridge, 3AG standard (exact match required)
• Number of Circuits: 1 (exact match required)
• Mounting Type: Through Hole (exact match required)
• Orientation: Vertical (exact match required)
• Termination Style: PC Pin (exact match required)

The substitute part BK/HBW-I-R meets all these criteria and is therefore electrically and mechanically interchangeable with the BK/HBW-I.

Parameter Comparison

Engineering Selection Recommendations

The BK/HBW-I-R is the direct substitute for the obsolete BK/HBW-I. Both components are manufactured by Eaton - Electronics Division and share identical electrical and mechanical specifications across all critical parameters: 16 A current rating, 250V voltage rating, 0.25" x 1.26" fuse size, cartridge type, single-circuit configuration, through-hole mounting, vertical orientation, and PC pin termination.

The primary distinction between the two parts is product status and regulatory compliance. The BK/HBW-I-R is currently active in production and carries ROHS3 compliance certification, whereas the BK/HBW-I is obsolete and RoHS non-compliant. The BK/HBW-I-R also carries REACH Unaffected status.

For new designs, maintenance applications, and systems requiring regulatory compliance, the BK/HBW-I-R is the appropriate selection. Both parts maintain identical moisture sensitivity levels (MSL 1, Unlimited) and export classification (EAR99).

Frequently Asked Questions (FAQ)

Q: Can the BK/HBW-I-R be used as a direct replacement for the BK/HBW-I in existing PCB assemblies?

A: Yes. The BK/HBW-I-R is electrically and mechanically equivalent to the BK/HBW-I. All critical parameters—current rating, voltage rating, fuse size, mounting type, orientation, and termination style—are identical. The component will function identically in the same circuit position.

Q: What is the difference between the BK/HBW-I and BK/HBW-I-R?

A: The BK/HBW-I-R is the active production equivalent of the obsolete BK/HBW-I. The BK/HBW-I-R carries ROHS3 compliance and REACH Unaffected status, while the BK/HBW-I is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there packaging differences between these two parts?

A: The BK/HBW-I-R is supplied in bulk packaging, whereas the BK/HBW-I packaging specification was not provided. Both parts are through-hole PCB components with PC pin termination and do not require special handling beyond MSL 1 (Unlimited) moisture sensitivity level.

Q: Which fuse types are compatible with both the BK/HBW-I and BK/HBW-I-R?

A: Both holders accommodate 3AG cartridge fuses with dimensions of 0.25" diameter by 1.26" length (6.35mm x 32mm). The related fuse specification is SFE-20 (1/4" x 1-1/4").

Q: Is the BK/HBW-I-R suitable for new product designs?

A: Yes. The BK/HBW-I-R is an active product with current manufacturing status and ROHS3 compliance, making it appropriate for new designs and applications requiring regulatory compliance.