Littelfuse 0FHA0002Z Equivalent & Substitute Parts

Part Overview

The Littelfuse 0FHA0002Z is a blade fuse holder rated for 30 A at 32V, designed for inline mounting with wire lead termination. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance and component sourcing. The part accommodates standard ATC and ATO blade fuses in a single-circuit configuration with dimensions of 0.75" L x 0.2" W (19.1mm x 5.1mm).

Substiute Parts

0FHA0002Z

Littelfuse Inc.In Stock: 8020FHA0002Z Datasheet

Current PartRFQ

BK/HHD

Eaton - Bussmann Electrical DivisionIn Stock: 1120BK/HHD Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0FHA0002Z is determined by the following critical parameters:

• Voltage Rating: Must be 32V or higher to ensure safe operation
• Fuse Type: Must be blade type to maintain mechanical and electrical compatibility
• Fuse Size: Must accommodate 0.75" L x 0.2" W (19.1mm x 5.1mm) blade fuses
• Mounting Type: Must be free hanging (in-line) configuration
• Number of Circuits: Must be single-circuit
• Termination Style: Must feature wire leads
• Compatible Standards: Must support ATC and ATO blade fuses

The Eaton Bussmann HHD series part meets these substitution criteria. While the current rating differs (24 A versus 30 A), the electrical and mechanical parameters remain compatible within the allowed parameter set for this product category.

Parameter Comparison

Engineering Selection Recommendations

The Eaton Bussmann BK/HHD is the manufacturer-recommended substitute for the obsolete Littelfuse 0FHA0002Z. Both components maintain identical mechanical form factors and voltage specifications. The BK/HHD part is currently in active production status, ensuring long-term availability and supply chain continuity. Both parts meet RoHS compliance requirements, with the substitute meeting current RoHS standards. The primary distinction is the current rating differential (24 A versus 30 A), which must be evaluated against circuit requirements during component selection.

Frequently Asked Questions (FAQ)

Q: Can the Eaton Bussmann BK/HHD directly replace the Littelfuse 0FHA0002Z?

A: Yes, the BK/HHD meets all mechanical and electrical compatibility criteria. Both parts accommodate identical blade fuse sizes, operate at 32V, feature wire lead termination, and support ATC and ATO fuse standards in single-circuit configurations.

Q: What is the significance of the current rating difference between the two parts?

A: The 0FHA0002Z is rated for 30 A while the BK/HHD is rated for 24 A. Circuit design requirements must accommodate the lower current rating of the substitute part.

Q: Are both parts RoHS compliant?

A: Yes. The 0FHA0002Z meets ROHS3 compliance, and the BK/HHD meets current RoHS compliance standards.

Q: What packaging is available for the substitute part?

A: The Eaton Bussmann BK/HHD is supplied in bulk packaging.

Q: Why is the original Littelfuse part listed as obsolete?

A: Obsolete status indicates the part is no longer manufactured by Littelfuse. The recommended substitute ensures continued access to functionally equivalent components.