BK/HTC-45M Equivalent & Substitute Parts Reference

Part Overview

The BK/HTC-45M is a cartridge fuse holder manufactured by Eaton - Electronics Division, designed for 5mm x 20mm fuses with a 10A current rating at 250V. This through-hole mounted component is intended for single-circuit PCB applications with vertical orientation and PC pin termination.

The BK/HTC-45M carries a "Not For New Designs" product status, indicating that Eaton has discontinued active development and support for this model line. Organizations currently using this component in production or maintenance applications require equivalent alternatives to ensure supply chain continuity and long-term availability.

Substiute Parts

BK/HTC-45M

Eaton - Electronics DivisionIn Stock: 1030BK/HTC-45M Datasheet

Current PartRFQ

BK1/H15-V-1

Eaton - Electronics DivisionIn Stock: 2203BK1/H15-V-1 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BK/HTC-45M is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Fuse size: 5mm x 20mm cartridge format
• Current rating: 10 A
• Voltage rating: 250V
• Mounting configuration: Through-hole with vertical orientation
• Termination: PC pin connection
• Circuit count: Single circuit (1)
• Fuse holder type: Cartridge holder

The BK1/H15-V-1 meets all mandatory electrical and mechanical specifications required for direct substitution in applications currently using the BK/HTC-45M. Both components accommodate identical fuse dimensions, current and voltage ratings, and PCB mounting configurations.

Parameter Comparison

Engineering Selection Recommendations

BK1/H15-V-1 as Primary Substitute:

The BK1/H15-V-1 provides complete electrical and mechanical equivalence to the BK/HTC-45M across all specified parameters. Both components are manufactured by Eaton and share identical fuse accommodation specifications (5mm x 20mm), current handling (10A), voltage rating (250V), and PCB mounting configuration (through-hole, vertical, PC pin termination).

Product Status Consideration:

Both the BK/HTC-45M and BK1/H15-V-1 carry discontinued or obsolete status designations. The BK/HTC-45M is marked "Not For New Designs," while the BK1/H15-V-1 is listed as "Discontinued at DiGi Electronics." For applications requiring long-term component availability, evaluation of current-generation Eaton fuse holder alternatives outside this product family may be necessary.

Compliance Status:

The BK/HTC-45M is certified RoHS Compliant. The BK1/H15-V-1 does not specify RoHS status in available documentation. Organizations with RoHS compliance requirements should confirm the substitute part's regulatory status through Eaton technical documentation before final selection.

Frequently Asked Questions (FAQ)

Q: Can the BK1/H15-V-1 directly replace the BK/HTC-45M in existing PCB designs?

A: Yes. Both components share identical electrical ratings (10A, 250V), fuse size accommodation (5mm x 20mm), mounting type (through-hole), orientation (vertical), and termination style (PC pin). No PCB layout modifications are required.

Q: What is the difference between the BK/HTC-45M and BK1/H15-V-1?

A: The primary difference is contact material composition: BK/HTC-45M uses brass contacts, while BK1/H15-V-1 uses copper contacts. Both are finished with tin plating. This material difference does not affect electrical performance for the specified 10A, 250V application. The components belong to different Eaton product series (HTC versus H15).

Q: Are both parts currently available for purchase?

A: The BK/HTC-45M inventory shows 1005 pieces in stock as new original components. The BK1/H15-V-1 shows 2106 pieces in stock. However, both carry discontinued or obsolete status designations, indicating limited future availability.

Q: Does the BK1/H15-V-1 meet RoHS requirements?

A: The BK/HTC-45M is certified RoHS Compliant. The BK1/H15-V-1 does not specify RoHS status in the provided documentation. Verification through Eaton technical resources is required for applications with mandatory RoHS compliance.

Q: Can these fuse holders accommodate fuse sizes other than 5mm x 20mm?

A: No. Both the BK/HTC-45M and BK1/H15-V-1 are designed exclusively for 5mm x 20mm cartridge fuses. Different fuse sizes require different holder models.

Q: What is the maximum current these holders can safely interrupt?

A: Both components are rated for 10A at 250V. The actual interruption capacity depends on the fuse element installed in the holder, not the holder itself.