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

Part Overview

The HFB-R 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 single-circuit holder accommodates 0.25" diameter by 1.26" length cartridge fuses (6.35mm x 32mm), commonly referenced as 3AG or 1/4" x 1-1/4" (SFE-20) fuse types. The product is currently active in production and maintains full RoHS compliance. Identifying equivalent and substitute parts is necessary to ensure supply chain continuity, optimize inventory management, and maintain design flexibility across manufacturing and maintenance operations.

Substiute Parts

HFB-R

Eaton - Electronics DivisionIn Stock: 910HFB-R Datasheet

Current PartRFQ

BK/HFB-R

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

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HFB-R is determined by strict equivalence across the following critical 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)
• Mounting Type: Free Hanging (In-Line) (exact match required)
• Termination Style: Crimp (exact match required)

Material & Compliance Parameters:

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

Parts meeting all these criteria are classified as direct substitutes and are electrically and mechanically interchangeable without design modification.

Parameter Comparison

Engineering Selection Recommendations

The BK/HFB-R is a direct substitute for the HFB-R based on complete parameter equivalence. Both parts are manufactured by Eaton - Electronics Division and maintain identical electrical, mechanical, and material specifications. The BK/HFB-R carries ROHS3 compliance, which exceeds the RoHS compliance of the HFB-R, ensuring forward compatibility with evolving regulatory requirements. Both parts share the same ECCN (EAR99) and HTSUS classification, confirming equivalent trade and export status. Selection between these parts may be based on inventory availability, lead time, or supply chain preference, as no technical differentiation exists.

Frequently Asked Questions (FAQ)

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

A: Yes. The BK/HFB-R is electrically and mechanically equivalent to the HFB-R across all critical parameters: 30 A current rating, 32V voltage rating, 0.25" x 1.26" cartridge fuse accommodation, single-circuit configuration, free hanging in-line mounting, crimp termination, and copper tin-plated contacts. No design modification is required.

Q: Are there any compliance differences between HFB-R and BK/HFB-R?

A: Both parts are RoHS compliant. The BK/HFB-R carries ROHS3 certification, which represents an updated compliance standard. Both parts are classified as EAR99 for export control and share identical HTSUS tariff classification (8538.90.8180).

Q: What fuse types are compatible with these holders?

A: Both the HFB-R and BK/HFB-R accommodate 3AG cartridge fuses with dimensions 0.25" diameter by 1.26" length (6.35mm x 32mm), also referenced as 1/4" x 1-1/4" fuses, such as the SFE-20 series.

Q: What is the moisture sensitivity level for these parts?

A: Both parts have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.

Q: Are these parts suitable for high-frequency or AC/DC applications?

A: The provided specifications confirm 32V voltage rating and 30 A current capacity. Application suitability beyond these electrical parameters cannot be determined from the provided data and must be verified against specific circuit requirements.

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

A: Both parts are manufactured by Eaton - Electronics Division with identical functional specifications. The BK/ prefix on BK/HFB-R may indicate a specific product line designation or packaging variant within Eaton's catalog. Functionally, they are equivalent.