Equivalent & Substitute Parts: HKP-EW Fuse Holder

Part Overview

The HKP-EW is a cartridge fuse holder manufactured by Eaton - Electronics Division, rated for 30 A at 250V with single-circuit panel mount configuration. This component is designed for use with 3AG and 1/4" x 1-1/4" cartridge fuses. The HKP-EW carries an obsolete product status, making identification of equivalent substitute parts essential for ongoing maintenance, repair, and new design applications where this fuse holder specification is required.

Substiute Parts

HKP-EW

Eaton - Electronics DivisionIn Stock: 956HKP-EW Datasheet

Current PartRFQ

PMA-KB-01H-SOS

OptiFuseIn Stock: 5459PMA-KB-01H-SOS Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HKP-EW fuse holder is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Parameters:

• Current Rating: 30 A
• Voltage Rating: 250V
• Number of Circuits: 1

Mechanical Parameters:

• Fuse Size: 0.25" Dia x 1.26" L (6.35mm x 32mm)
• Fuse Type: Cartridge
• Mounting Type: Panel Mount
• Orientation: Horizontal and Vertical
• Termination Style: Solder Lug

Material Specifications:

• Contact Material: Brass
• Contact Finish: Tin

Substitute parts must match all parameters listed above to ensure direct functional equivalence without circuit modification or mechanical rework.

Parameter Comparison

Engineering Selection Recommendations

The PMA-KB-01H-SOS manufactured by OptiFuse is a direct functional equivalent to the obsolete HKP-EW. Both components satisfy identical electrical specifications (30 A, 250V, single circuit) and mechanical requirements (cartridge fuse holder, panel mount, solder lug termination, brass tin-plated contacts).

The PMA-KB-01H-SOS carries active product status, ensuring ongoing availability and supply chain continuity. Both parts maintain ROHS3 compliance and EAR99 export classification, supporting regulatory and compliance requirements.

Selection of the PMA-KB-01H-SOS eliminates obsolescence risk while maintaining full electrical and mechanical compatibility with existing circuit designs and PCB layouts that originally specified the HKP-EW.

Frequently Asked Questions (FAQ)

Q: Can the PMA-KB-01H-SOS be used as a direct replacement for the HKP-EW without circuit modification?

A: Yes. Both components share identical electrical ratings (30 A, 250V), fuse size specifications (0.25" Dia x 1.26" L), mounting configuration (panel mount), and termination style (solder lug). No circuit redesign or PCB rework is required.

Q: Are there differences in packaging between the HKP-EW and PMA-KB-01H-SOS?

A: The HKP-EW is supplied in standard packaging, while the PMA-KB-01H-SOS is supplied in bulk packaging. This difference affects order quantities and storage considerations but does not impact component functionality or electrical performance.

Q: Do both fuse holders support the same cartridge fuse types?

A: Yes. Both the HKP-EW and PMA-KB-01H-SOS are designed for 3AG and 1/4" x 1-1/4" cartridge fuses with 0.25" diameter and 1.26" length specifications.

Q: What is the significance of the active product status of the PMA-KB-01H-SOS?

A: Active product status indicates that the PMA-KB-01H-SOS is currently manufactured and supported by OptiFuse, ensuring long-term availability, consistent supply, and access to technical support. The obsolete status of the HKP-EW creates supply uncertainty and potential discontinuation of manufacturing.

Q: Are both components RoHS compliant?

A: Yes. Both the HKP-EW and PMA-KB-01H-SOS are ROHS3 compliant, meeting environmental and regulatory requirements for electronic component manufacturing and use.

Q: Can the PMA-KB-01H-SOS be mounted in both horizontal and vertical orientations?

A: Yes. The PMA-KB-01H-SOS supports both horizontal and vertical mounting orientations, matching the orientation flexibility of the HKP-EW.