Equivalent & Substitute Parts for 2JQ 6-R

Part Overview

The 2JQ 6-R is a 6A fast-blow glass cartridge fuse manufactured by Bel Fuse Inc., rated for 350V AC and 140V DC operation. This fuse is designed for applications requiring fast response protection in compact 2AG form factor (5mm x 15mm). The part maintains active product status with 2441 units in current inventory. Substitute parts are identified to provide alternative sourcing options where electrical and mechanical parameters align with application requirements.

Substiute Parts

2JQ 6-R

Bel Fuse Inc.In Stock: 25052JQ 6-R Datasheet

Current PartRFQ

0225006.MXUP

Littelfuse Inc.In Stock: 18270225006.MXUP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2JQ 6-R is determined by the following critical parameters:

• Current Rating: Must be 6 A
• Fuse Type: Must be Cartridge, Glass
• Response Time: Must be Fast Blow
• Package / Case: Must be 2AG, 5mm x 15mm form factor
• Voltage Rating - AC: Must support minimum 350 V AC
• Voltage Rating - DC: Must support minimum 140 V DC
• Operating Temperature Range: Must encompass -55°C ~ 125°C
• Regulatory Compliance: Must maintain ROHS3 compliance and relevant approval agencies

The substitute part 0225006.MXUP (Littelfuse Inc.) shares the same current rating, fuse type, response time, and package specifications. However, voltage ratings differ: the substitute is rated for 125V AC only, which is below the 350V AC requirement of the main part. This voltage limitation restricts substitution to applications operating at or below 125V AC.

Parameter Comparison

Engineering Selection Recommendations

The 2JQ 6-R and 0225006.MXUP share identical mechanical form factors and current ratings, making them physically interchangeable in 2AG fuse holders. Both parts maintain ROHS3 compliance and operate across the same temperature range.

Selection between these parts must be based on application voltage requirements:

• 2JQ 6-R: Use in applications requiring 350V AC or 140V DC operation. Provides higher voltage capability with CE, CSA, cURus, and PSE certifications.
• 0225006.MXUP: Use only in applications operating at 125V AC or below. Offers UL certification in addition to CE, CSA, and PSE approvals. Lower melting I²t (22.1 vs. 35) indicates faster thermal response.

Both parts are active products with current inventory availability. Selection should prioritize the part whose voltage rating matches or exceeds the application's maximum operating voltage.

Frequently Asked Questions (FAQ)

Q: Can 0225006.MXUP replace 2JQ 6-R in all applications?

A: No. The 0225006.MXUP is rated for 125V AC maximum, while the 2JQ 6-R supports 350V AC. Substitution is valid only for applications operating at 125V AC or below.

Q: Are these fuses physically compatible?

A: Yes. Both fuses use the 2AG package (5mm x 15mm) and fit standard 2AG fuse holders without modification.

Q: What is the significance of the different melting I²t values?

A: The 2JQ 6-R has a melting I²t of 35, while the 0225006.MXUP has 22.1. Lower I²t indicates faster thermal response. Applications with specific thermal response requirements must use the part matching those specifications.

Q: Do both parts have the same regulatory approvals?

A: Both are ROHS3 compliant. The 2JQ 6-R carries CE, CSA, cURus, and PSE approvals. The 0225006.MXUP carries CE, CSA, PSE, and UL approvals. Application requirements may dictate which certification set is necessary.

Q: What is the difference in DC cold resistance?

A: The 2JQ 6-R has 0.012 Ohms while the 0225006.MXUP has 0.0154 Ohms. This difference affects voltage drop across the fuse during operation and should be considered in low-voltage, high-current applications.

Q: Can I use 0225006.MXUP in a 350V AC circuit?

A: No. Using a fuse rated below the circuit voltage creates a safety hazard and violates electrical standards. The fuse must be rated for the maximum voltage present in the circuit.