BK/HFB Cartridge Fuse Holder 32V 30A In-Line Equivalent & Substitute Parts

Part Overview

The BK/HFB is a cartridge fuse holder manufactured by Eaton - Electronics Division, designed for 30 A circuits at 32V with free-hanging (in-line) mounting configuration. This component is classified as obsolete, necessitating identification of active equivalent parts for continued procurement and system integration. The BK/HFB accepts 0.25" diameter by 1.26" length (6.35mm x 32mm) cartridge fuses, commonly referenced as 3AG or 1/4" x 1-1/4" (SFE-20) fuse types. Locating functionally equivalent substitutes is essential for applications requiring this fuse holder specification where original inventory is depleted.

Substiute Parts

BK/HFB

Eaton - Electronics DivisionIn Stock: 1220BK/HFB Datasheet

Current PartRFQ

BK/HFB-R

Eaton - Electronics DivisionIn Stock: 10339BK/HFB-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/HFB is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Parameters:

• Current Rating: 30 A (exact match required)
• Voltage Rating: 32V (exact match required)
• Number of Circuits: 1 (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)
• Mounting Type: Free Hanging (In-Line) (exact match required)
• Termination Style: Crimp (exact match required)

Material Parameters:

• Contact Material: Copper (exact match required)
• Contact Finish: Tin (exact match required)

The BK/HFB-R is identified as a direct substitute based on complete alignment with all specified electrical, mechanical, and material parameters. The primary distinction between the main part and its substitute is product status and regulatory compliance posture.

Parameter Comparison

Engineering Selection Recommendations

The BK/HFB-R is the direct functional equivalent of the BK/HFB cartridge fuse holder. Both components share identical electrical ratings (30 A, 32V), mechanical dimensions (0.25" x 1.26"), and termination characteristics (crimp, copper with tin finish).

Product Status Consideration: The BK/HFB is classified as obsolete, while the BK/HFB-R maintains active product status. For new designs, system upgrades, or long-term procurement planning, the BK/HFB-R is the appropriate selection.

Regulatory Compliance: The BK/HFB-R is ROHS3 compliant and REACH unaffected, whereas the BK/HFB is RoHS non-compliant. Applications subject to RoHS directives or requiring compliance documentation must utilize the BK/HFB-R.

Availability: The BK/HFB-R offers significantly higher inventory availability (10,300 pieces) compared to the BK/HFB (1,110 pieces), supporting both immediate procurement needs and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the BK/HFB-R be used as a direct replacement for the BK/HFB in existing applications?

A: Yes. The BK/HFB-R is electrically and mechanically equivalent to the BK/HFB across all specified parameters: 30 A current rating, 32V voltage rating, 0.25" x 1.26" fuse size, cartridge fuse type, free-hanging in-line mounting, and crimp termination with copper/tin contacts.

Q: What is the primary difference between the BK/HFB and BK/HFB-R?

A: The BK/HFB-R is the active production equivalent of the obsolete BK/HFB. The BK/HFB-R is ROHS3 compliant and REACH unaffected, whereas the BK/HFB is RoHS non-compliant. The BK/HFB-R is supplied in bulk packaging with higher inventory availability.

Q: Are there any compatibility concerns when substituting the BK/HFB-R for the BK/HFB?

A: No compatibility concerns exist. Both parts accept the same 3AG or 1/4" x 1-1/4" (SFE-20) cartridge fuses and utilize identical crimp termination. Mechanical mounting and electrical performance are equivalent.

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

A: Both fuse holders accept 0.25" diameter by 1.26" length cartridge fuses, designated as 3AG or 1/4" x 1-1/4" (SFE-20) fuse types.

Q: Is the BK/HFB-R suitable for applications requiring RoHS compliance?

A: Yes. The BK/HFB-R is ROHS3 compliant and is the appropriate selection for applications subject to RoHS directives. The BK/HFB is RoHS non-compliant and should not be used in RoHS-regulated applications.

Q: What packaging format is the BK/HFB-R supplied in?

A: The BK/HFB-R is supplied in bulk packaging, suitable for high-volume procurement and manufacturing integration.