HTB-56I-R Cartridge Fuse Holder Equivalent & Substitute Parts

Part Overview

The HTB-56I-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 in active production status with 1082 pieces available in new original inventory. Substitute parts are identified when identical electrical and mechanical specifications are maintained across the same product series, ensuring direct functional equivalence in circuit protection applications.

Substiute Parts

HTB-56I-R

Eaton - Electronics DivisionIn Stock: 1146HTB-56I-R Datasheet

Current PartRFQ

BK/HTB-56I-R

Eaton - Electronics DivisionIn Stock: 1381BK/HTB-56I-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HTB-56I-R are identified based on strict equivalence of electrical and mechanical parameters. The substitution criteria include:

• 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)
• Series Compatibility: HTB series (same product family)

The substitute part BK/HTB-56I-R meets all these criteria and is therefore classified as a direct equivalent within the HTB cartridge fuse holder product line.

Parameter Comparison

Engineering Selection Recommendations

Both HTB-56I-R and BK/HTB-56I-R are active production components manufactured by Eaton - Electronics Division. Selection between these parts is based on availability and compliance requirements:

HTB-56I-R: 1082 pieces in stock. RoHS Compliant certification. Suitable for applications requiring standard RoHS compliance.

BK/HTB-56I-R: 1321 pieces in stock. ROHS3 Compliant certification with REACH Unaffected status. Suitable for applications requiring enhanced environmental compliance documentation or REACH-regulated markets.

Both parts are MSL Level 1 (Unlimited moisture sensitivity), carry EAR99 export classification, and fall under HTSUS code 8538.90.8180. The choice between these substitutes depends on inventory availability and specific regulatory compliance requirements of the end application.

Frequently Asked Questions (FAQ)

Q: Can BK/HTB-56I-R be used as a direct replacement for HTB-56I-R?

A: Yes. Both parts are identical in all electrical and mechanical specifications: 20 A current rating, 250V voltage rating, 0.25" x 1.26" cartridge fuse size, single circuit, panel mount configuration, and quick connect termination. They are functionally interchangeable.

Q: What fuse types are compatible with these holders?

A: Both HTB-56I-R and BK/HTB-56I-R accommodate 3AG cartridge fuses with dimensions 1/4" x 1-1/4" (SFE-20 specification).

Q: Are there differences in compliance certifications between the two parts?

A: HTB-56I-R carries RoHS Compliant certification. BK/HTB-56I-R carries ROHS3 Compliant certification and includes REACH Unaffected status. Both meet environmental compliance standards; the difference reflects updated certification levels.

Q: What is the termination method for these fuse holders?

A: Both parts use Quick Connect termination with 0.250" (6.3mm) connectors, enabling rapid installation and removal without soldering.

Q: Are these parts suitable for high-moisture environments?

A: Both parts carry MSL Level 1 (Unlimited) rating, indicating no moisture sensitivity limitations during storage or handling.

Q: What is the inventory status for each part?

A: HTB-56I-R has 1082 pieces available. BK/HTB-56I-R has 1321 pieces available. Both are new original stock.