BK/HTB-68M Fuse Holder Cartridge 250V 16A Panel Mount

Part Overview

The BK/HTB-68M is a cartridge fuse holder rated for 16 A at 250V with panel mount configuration, designed for 5mm x 20mm cartridge fuses. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing applications. The obsolete status requires users to transition to active product alternatives that maintain electrical and mechanical compatibility with the original specification.

Substiute Parts

BK/HTB-68M

Eaton - Electronics DivisionIn Stock: 882BK/HTB-68M Datasheet

Current PartRFQ

BK/HTB-68M-R

Eaton - Electronics DivisionIn Stock: 1046BK/HTB-68M-R Datasheet

DirectRFQ

03455RF7H

Littelfuse Inc.In Stock: 96703455RF7H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BK/HTB-68M is determined by the following critical parameters that must remain constant across equivalent parts:

Mandatory Compatibility Parameters:

• Fuse Size: 5mm x 20mm cartridge format
• Mounting Type: Panel Mount
• Termination Style: Quick Connect - 0.250" (6.3mm)
• Number of Circuits: 1
• Voltage Rating: 250V
• Fuse Type: Cartridge

Current Rating Consideration: The BK/HTB-68M is rated for 16 A. Substitute parts are grouped into two categories based on current rating alignment:

1. Direct Equivalent (16 A Rating): Parts maintaining identical 16 A current rating with all other parameters matching
2. Similar Substitute (10 A Rating): Parts with reduced current rating that share all other electrical and mechanical parameters

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: BK/HTB-68M-R

The BK/HTB-68M-R is the direct equivalent replacement for the obsolete BK/HTB-68M. Both parts are manufactured by Eaton - Electronics Division within the HTB series and maintain identical electrical ratings (16 A, 250V) and mechanical specifications (5mm x 20mm cartridge, panel mount, quick connect termination). The BK/HTB-68M-R holds active product status and is RoHS Compliant, addressing regulatory compliance requirements that the original obsolete part does not meet.

Secondary Substitute: 03455RF7H

The 03455RF7H manufactured by Littelfuse Inc. is classified as a similar substitute due to a reduced current rating of 10 A compared to the original 16 A specification. This part shares all other electrical and mechanical parameters: 250V voltage rating, 5mm x 20mm cartridge fuse size, panel mount configuration, and quick connect 0.250" (6.3mm) termination. The 03455RF7H is active and ROHS3 Compliant. Selection of this substitute is appropriate only for applications where the circuit current requirement does not exceed 10 A.

Frequently Asked Questions (FAQ)

Q: Can the BK/HTB-68M-R be used as a direct replacement for the BK/HTB-68M?

A: Yes. The BK/HTB-68M-R is a direct equivalent. Both parts share identical current rating (16 A), voltage rating (250V), fuse size (5mm x 20mm), mounting type (panel mount), and termination style (quick connect 0.250"). The primary difference is product status: BK/HTB-68M-R is active and RoHS Compliant, while the original is obsolete and non-compliant.

Q: What is the difference between the BK/HTB-68M-R and the 03455RF7H?

A: The primary difference is current rating. The BK/HTB-68M-R is rated for 16 A, while the 03455RF7H is rated for 10 A. Both maintain the same voltage (250V), fuse size (5mm x 20mm), mounting configuration (panel mount), and termination style (quick connect 0.250"). The 03455RF7H is manufactured by Littelfuse Inc. rather than Eaton.

Q: Can the 03455RF7H be used in place of the BK/HTB-68M?

A: The 03455RF7H is mechanically and electrically compatible with the BK/HTB-68M for all parameters except current rating. The 03455RF7H is rated for 10 A maximum, while the BK/HTB-68M is rated for 16 A. Selection of the 03455RF7H is appropriate only for circuits where the maximum current requirement does not exceed 10 A.

Q: What packaging options are available?

A: The BK/HTB-68M-R and 03455RF7H are both supplied in bulk packaging. The original BK/HTB-68M packaging specification is not provided in the available data.

Q: Are there RoHS compliance differences between these parts?

A: Yes. The BK/HTB-68M is RoHS non-compliant. The BK/HTB-68M-R is RoHS Compliant. The 03455RF7H is ROHS3 Compliant. Applications requiring RoHS compliance must use either the BK/HTB-68M-R or 03455RF7H.

Q: What are the contact material specifications?

A: Contact material and finish specifications are not provided for the BK/HTB-68M or BK/HTB-68M-R. The 03455RF7H specifies Copper Alloy contacts with Tin finish.