HTB-38I-R Cartridge Fuse Holder Equivalent & Substitute Parts

Part Overview

The HTB-38I-R is a cartridge fuse holder manufactured by Eaton - Electronics Division, designed for panel mount applications. This component is rated for 20 A at 250V and accommodates 0.25" diameter by 1.26" length cartridge fuses. The part is currently active in production with 866 pieces available in new original stock condition.

Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or inventory requirements necessitate alternative sourcing from the same manufacturer. The HTB-38I-R maintains full compatibility with its direct substitute through identical electrical and mechanical specifications.

Substiute Parts

HTB-38I-R

Eaton - Electronics DivisionIn Stock: 974HTB-38I-R Datasheet

Current PartRFQ

BK/HTB-38I-R

Eaton - Electronics DivisionIn Stock: 1800BK/HTB-38I-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HTB-38I-R is determined by strict equivalence across the following critical parameters:

• Current Rating: 20 A (exact match required)
• Voltage Rating: 250V (exact match required)
• Fuse Size: 0.25" Dia x 1.26" L / 6.35mm x 32mm (exact match required)
• Fuse Type: Cartridge (exact match required)
• Number of Circuits: 1 (exact match required)
• Mounting Type: Panel Mount (exact match required)
• Termination Style: Quick Connect - 0.250" (6.3mm) (exact match required)
• Manufacturer: Eaton - Electronics Division (same manufacturer)

The substitute part BK/HTB-38I-R meets all these criteria and is therefore a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The BK/HTB-38I-R is a direct equivalent to the HTB-38I-R and may be selected interchangeably based on the following factors:

Compliance and Certification: Both parts maintain active product status from Eaton - Electronics Division. The HTB-38I-R carries RoHS Compliant certification, while the BK/HTB-38I-R carries ROHS3 Compliant certification. Both certifications satisfy RoHS requirements. The BK/HTB-38I-R additionally carries REACH Unaffected status.

Electrical and Mechanical Compatibility: All electrical parameters (20 A, 250V) and mechanical specifications (fuse size, mounting type, termination style) are identical between both parts.

Inventory Availability: The BK/HTB-38I-R offers higher inventory availability (1703 pieces) compared to the HTB-38I-R (866 pieces), making it suitable for applications requiring larger quantities or extended supply assurance.

Application Suitability: Both parts are suitable for identical applications requiring 20 A, 250V single-circuit cartridge fuse holder functionality with panel mount configuration and quick connect termination.

Frequently Asked Questions (FAQ)

Q: Can the BK/HTB-38I-R be used as a direct replacement for the HTB-38I-R?

A: Yes. The BK/HTB-38I-R is a direct equivalent. All electrical ratings (20 A, 250V), mechanical dimensions (0.25" Dia x 1.26" L), fuse type (cartridge), mounting configuration (panel mount), and termination style (quick connect 0.250") are identical.

Q: What fuse types are compatible with both the HTB-38I-R and BK/HTB-38I-R?

A: Both holders accommodate 3AG cartridge fuses with dimensions 1/4" x 1-1/4" (SFE-20 specification).

Q: Are there any compliance differences between the two parts?

A: Both parts are RoHS compliant. The HTB-38I-R carries RoHS Compliant certification. The BK/HTB-38I-R carries ROHS3 Compliant certification and additionally carries REACH Unaffected status. Both meet current regulatory requirements.

Q: What is the moisture sensitivity level for these parts?

A: Both the HTB-38I-R and BK/HTB-38I-R have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.

Q: Can these fuse holders be used in applications other than panel mount?

A: No. Both parts are specifically designed for panel mount applications. The mounting type is a fixed specification and cannot be altered.

Q: What is the maximum current these fuse holders can handle?

A: Both the HTB-38I-R and BK/HTB-38I-R are rated for 20 A maximum continuous current at 250V.

Q: Are these parts suitable for international applications?

A: Both parts carry EAR99 ECCN classification and HTSUS code 8538.90.8180, indicating standard export classification. Specific international application requirements should be verified against local regulations.