HTB-42M-R Equivalent & Substitute Parts

Part Overview

The HTB-42M-R is a cartridge fuse holder manufactured by Eaton - Electronics Division, designed for panel mount applications with a 16 A current rating at 250V. This single-circuit holder accommodates 5mm x 20mm cartridge fuses and features quick connect termination. The product is Active status and RoHS Compliant, with 1125 units currently in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters align with the main part specifications, enabling direct functional replacement in circuit protection applications where the primary part becomes unavailable or when alternative termination methods are acceptable.

Substiute Parts

HTB-42M-R

Eaton - Electronics DivisionIn Stock: 1228HTB-42M-R Datasheet

Current PartRFQ

BK2-HTC-623M

Eaton - Electronics DivisionIn Stock: 2653BK2-HTC-623M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HTB-42M-R is determined by the following critical parameters:

Mandatory Matching Parameters:

• Voltage Rating: 250V
• Fuse Type: Cartridge
• Mounting Type: Panel Mount
• Number of Circuits: 1
• Fuse Size Compatibility: 5mm diameter

Variable Parameters Allowing Substitution:

• Current Rating: The substitute part may operate at a different amperage rating (10 A vs. 16 A) provided the application circuit protection requirements are met
• Termination Style: Quick Connect termination may be substituted with Solder Lug termination based on installation method
• Contact Material and Finish: Variations in brass and nickel specifications do not prevent functional substitution

The BK2-HTC-623M qualifies as a substitute because it maintains the core electrical parameters (250V, cartridge fuse type, panel mount, single circuit) and accepts 5mm diameter fuses, despite differences in current rating and termination methodology.

Parameter Comparison

Engineering Selection Recommendations

Both the HTB-42M-R and BK2-HTC-623M are Active status products manufactured by Eaton - Electronics Division with RoHS Compliance and MSL 1 ratings, ensuring environmental and regulatory compatibility.

HTB-42M-R Selection Criteria:

• Applications requiring 16 A circuit protection at 250V
• Panel mount installations with quick connect termination requirements
• 5mm x 20mm cartridge fuse accommodation

BK2-HTC-623M Selection Criteria:

• Applications requiring 10 A circuit protection at 250V
• Panel mount installations with solder lug termination capability
• 5mm diameter cartridge fuse accommodation
• Horizontal and vertical orientation flexibility

The current rating differential (16 A vs. 10 A) is the primary distinguishing factor. Selection between these parts depends on the specific circuit protection amperage requirement and the available termination method in the target installation.

Frequently Asked Questions (FAQ)

Q: Can the BK2-HTC-623M directly replace the HTB-42M-R in all applications?

A: Direct replacement is possible only when the circuit protection requirement is 10 A or lower. The BK2-HTC-623M has a lower current rating (10 A) compared to the HTB-42M-R (16 A). Additionally, the termination method differs: quick connect versus solder lug. Installation compatibility depends on the PCB or panel design.

Q: What is the significance of the fuse size difference between the two parts?

A: The HTB-42M-R specifies 5mm x 20mm fuse dimensions, while the BK2-HTC-623M specifies 5mm diameter only. Both accept 5mm diameter cartridge fuses. The length specification (20mm) for the HTB-42M-R indicates the standard IEC 60127 cartridge fuse length. The BK2-HTC-623M accommodates 5mm diameter fuses and is compatible with standard 5mm x 20mm cartridge fuses.

Q: Are there compliance or environmental differences between these parts?

A: Both parts are RoHS Compliant with MSL 1 (Unlimited) moisture sensitivity ratings. Both carry ECCN EAR99 classification and HTSUS 8538.90.8180 tariff codes. No compliance or environmental differences exist between the two parts.

Q: What termination method should I select?

A: The HTB-42M-R uses quick connect termination (0.187" / 4.7mm), suitable for push-on connector installations. The BK2-HTC-623M uses solder lug termination, requiring direct soldering to PCB traces or wire connections. Selection depends on the available connection method in your installation.

Q: Can the BK2-HTC-623M operate in both horizontal and vertical orientations?

A: Yes. The BK2-HTC-623M is specified for horizontal and vertical orientation. The HTB-42M-R orientation specification is not provided in the available data.