BK/HTB-64M Fuse Holder Cartridge 250V 16A Panel Mount

Part Overview

The BK/HTB-64M is a cartridge fuse holder designed for 5mm x 20mm fuses with a 16 A current rating at 250V. This component is classified as obsolete, necessitating identification of active substitute parts for continued system support and procurement. The HTB series panel mount configuration provides quick connect termination suitable for standard electrical panel installations.

Substiute Parts

BK/HTB-64M

Eaton - Electronics DivisionIn Stock: 1233BK/HTB-64M Datasheet

Current PartRFQ

BK/HTB-64M-R

Eaton - Electronics DivisionIn Stock: 1042BK/HTB-64M-R Datasheet

DirectRFQ

03455RF1H

Littelfuse Inc.In Stock: 140503455RF1H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the BK/HTB-64M are identified based on electrical and mechanical compatibility within the following critical parameters:

Electrical Compatibility Parameters:

• Voltage Rating: 250V (required match)
• Fuse Size: 5mm x 20mm (required match)
• Number of Circuits: 1 (required match)

Mechanical Compatibility Parameters:

• Mounting Type: Panel Mount (required match)
• Termination Style: Quick Connect - 0.187" (4.7mm) (required match)
• Fuse Type: Cartridge (required match)

Current Rating Consideration: The BK/HTB-64M-R maintains identical 16 A current rating. The Littelfuse 03455RF1H operates at 10 A, representing a lower current capacity within the same physical and electrical framework.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: BK/HTB-64M-R

The BK/HTB-64M-R is the direct functional equivalent of the obsolete BK/HTB-64M. Both components share identical electrical ratings (16 A, 250V), mechanical specifications (5mm x 20mm cartridge, panel mount), and termination configuration. The BK/HTB-64M-R maintains active product status and achieves ROHS3 compliance, addressing regulatory requirements for new installations and system upgrades.

Secondary Substitute: 03455RF1H

The Littelfuse 03455RF1H provides mechanical and electrical compatibility across all critical parameters except current rating. This component operates at 10 A versus the 16 A specification of the original part. Selection of the 03455RF1H is appropriate only when system design permits operation at the lower 10 A current threshold. Both components share identical fuse size, voltage rating, mounting configuration, and termination style. The 03455RF1H achieves ROHS3 compliance and REACH unaffected status.

Frequently Asked Questions (FAQ)

Q: Can the BK/HTB-64M-R be used as a direct replacement for the BK/HTB-64M?

A: Yes. The BK/HTB-64M-R is electrically and mechanically identical to the BK/HTB-64M, with matching 16 A current rating, 250V voltage rating, 5mm x 20mm fuse size, and quick connect termination. The primary difference is product status: BK/HTB-64M-R is active while BK/HTB-64M is obsolete.

Q: What is the difference between the BK/HTB-64M-R and the 03455RF1H?

A: Both components are mechanically compatible and share the same fuse size (5mm x 20mm), voltage rating (250V), mounting type (panel mount), and termination style (quick connect). The 03455RF1H operates at 10 A current rating, compared to 16 A for the BK/HTB-64M-R. Selection depends on system current requirements.

Q: Are there RoHS compliance differences between these parts?

A: Yes. The BK/HTB-64M is RoHS non-compliant. Both BK/HTB-64M-R and 03455RF1H achieve ROHS3 compliance, making them suitable for applications with regulatory compliance requirements.

Q: Can the 03455RF1H be used in applications designed for 16 A operation?

A: No. The 03455RF1H is rated for 10 A maximum current. Use of this component in a 16 A application would result in undersized protection and potential safety issues. The 03455RF1H is appropriate only when system design operates at or below 10 A.

Q: What is the packaging difference between these substitute parts?

A: Both BK/HTB-64M-R and 03455RF1H are supplied in bulk packaging. The original BK/HTB-64M packaging specification is not provided in the technical data.

Q: Are all three parts compatible with 5mm x 20mm cartridge fuses?

A: Yes. All three components are designed for 5mm x 20mm cartridge fuses and share identical mechanical fuse cavity specifications.