Equivalent & Substitute Parts: HTB-34I-R

Part Overview

The HTB-34I-R is a cartridge fuse holder manufactured by Eaton - Electronics Division, designed for panel mount applications in 250V circuits with a 20A current rating. This single-circuit holder accommodates 0.25" diameter by 1.26" length cartridge fuses and features quick connect termination. The product is Active status and RoHS Compliant, making it suitable for modern electronic equipment requiring reliable overcurrent protection in industrial and commercial applications. Substitute parts are identified when inventory constraints, lead time requirements, or specific application needs necessitate alternative fuse holder configurations that maintain electrical and mechanical compatibility within defined parameters.

Substiute Parts

HTB-34I-R

Eaton - Electronics DivisionIn Stock: 754HTB-34I-R Datasheet

Current PartRFQ

BK2-HTJ-608I

Eaton - Electronics DivisionIn Stock: 2509BK2-HTJ-608I Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HTB-34I-R are identified based on the following critical parameters that determine functional equivalency:

Electrical Compatibility Parameters:

• Voltage Rating: 250V (must match)
• Fuse Type: Cartridge (must match)
• Number of Circuits: 1 (must match)
• Fuse Diameter: 0.25" / 6.35mm (must match)

Mechanical Compatibility Parameters:

• Mounting Type: Panel Mount (must match)
• Fuseholder Type: Holder (must match)

Regulatory & Environmental Parameters:

• RoHS Compliance Status (must match or exceed)
• Moisture Sensitivity Level (must be compatible)

The substitute part BK2-HTJ-608I shares the core electrical and mechanical characteristics with the HTB-34I-R. Both are single-circuit cartridge fuse holders rated for 250V operation with 0.25" diameter fuse compatibility and panel mount configuration. Differences in current rating (15A vs. 20A), termination style (Solder Lug vs. Quick Connect), and series designation (HTJ vs. HTB) represent design variations within the allowed substitution parameters for this product category.

Parameter Comparison

Engineering Selection Recommendations

HTB-34I-R Selection Criteria:

• Applications requiring 20A current protection in 250V circuits
• Panel mount installations with quick connect termination requirements
• Systems designed for 0.25" x 1.26" cartridge fuse compatibility
• Designs utilizing quick connect 0.187" terminal connections

BK2-HTJ-608I Selection Criteria:

• Applications requiring 15A current protection in 250V circuits
• Panel mount installations with solder lug termination requirements
• Systems designed for 0.25" diameter cartridge fuse compatibility
• Designs utilizing solder lug terminal connections
• Vertical orientation mounting configurations

Both parts maintain Active product status and RoHS Compliance, ensuring regulatory alignment and long-term availability. Selection between these parts depends on the specific current rating requirement (20A vs. 15A) and termination method (quick connect vs. solder lug) dictated by the circuit design and PCB layout specifications.

Frequently Asked Questions (FAQ)

Q: Can BK2-HTJ-608I replace HTB-34I-R in all applications?

A: No. While both are 250V, single-circuit cartridge fuse holders with 0.25" diameter fuse compatibility, the BK2-HTJ-608I has a 15A current rating compared to the HTB-34I-R's 20A rating. Substitution is only valid when the circuit protection requirement is 15A or lower. Additionally, the termination methods differ: HTB-34I-R uses quick connect terminals while BK2-HTJ-608I uses solder lugs, requiring different PCB connection designs.

Q: What are the critical parameters for fuse holder substitution?

A: Voltage rating, fuse type, fuse diameter, number of circuits, and mounting type must remain constant. Current rating and termination style may vary based on specific application requirements, but these changes must be intentional design decisions, not accidental substitutions.

Q: Are both parts RoHS Compliant?

A: Yes. Both HTB-34I-R and BK2-HTJ-608I are RoHS Compliant with Moisture Sensitivity Level 1 (Unlimited), meeting modern environmental and regulatory standards.

Q: What is the difference between quick connect and solder lug termination?

A: Quick connect termination (HTB-34I-R) uses 0.187" spade connectors for push-on connection to PCB terminals, enabling tool-free assembly. Solder lug termination (BK2-HTJ-608I) requires soldering the terminal directly to PCB pads, providing a permanent connection. Selection depends on assembly method and PCB design specifications.

Q: Can I use a 15A fuse holder in a 20A circuit?

A: No. The BK2-HTJ-608I is rated for 15A maximum. Using it in a 20A circuit would result in inadequate overcurrent protection and potential safety hazards. Current rating must match or exceed the circuit requirement.

Q: Are both parts available in bulk packaging?

A: Yes. Both HTB-34I-R and BK2-HTJ-608I are supplied in bulk packaging, with HTB-34I-R having 695 pieces and BK2-HTJ-608I having 2428 pieces currently in stock.