2JQ 5 Equivalent & Substitute Parts

Part Overview

The 2JQ 5 is a fast-blow glass cartridge fuse rated at 5 A, 350 V AC, and 140 V DC, manufactured by Bel Fuse Inc. in the 2AG form factor (5mm x 15mm). This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance and component sourcing.

The primary reason for identifying substitute parts is the obsolete product status of the 2JQ 5. Active equivalent models ensure continued availability and support for applications requiring this fuse specification.

Substiute Parts

2JQ 5

Bel Fuse Inc.In Stock: 8062JQ 5 Datasheet

Current PartRFQ

2JQ 5-R

Bel Fuse Inc.In Stock: 19472JQ 5-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2JQ 5 is determined by strict equivalence across the following critical parameters:

• Current Rating: 5 A (exact match required)
• Voltage Rating - AC: 350 V (exact match required)
• Voltage Rating - DC: 140 V (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Package / Case: 2AG, 5mm x 15mm (exact match required)
• Response Time: Fast Blow (exact match required)
• Breaking Capacity @ Rated Voltage: 100A AC, 150A DC (exact match required)
• Melting I²t: 20 (exact match required)
• Approval Agencies: CE, CSA, cURus, PSE (all certifications required)

The 2JQ 5-R meets all substitution criteria and is classified as an active product, providing a direct functional equivalent with improved compliance status.

Parameter Comparison

Engineering Selection Recommendations

The 2JQ 5-R is the direct substitute for the obsolete 2JQ 5. Both parts maintain identical electrical and mechanical specifications across all critical parameters. The 2JQ 5-R offers the advantage of active product status and ROHS3 compliance, making it the preferred selection for new designs and component replacement applications.

The DC cold resistance differential (0.016 Ohms vs. 0.015 Ohms) is within acceptable tolerance for fuse applications and does not affect functional equivalence.

Frequently Asked Questions (FAQ)

Q: Can the 2JQ 5-R be used as a direct replacement for the 2JQ 5?

A: Yes. The 2JQ 5-R meets all electrical and mechanical specifications of the 2JQ 5, including current rating, voltage ratings, fuse type, package dimensions, response time, breaking capacity, and approval certifications.

Q: What is the difference between the 2JQ 5 and 2JQ 5-R?

A: The primary differences are product status and compliance. The 2JQ 5 is obsolete and RoHS non-compliant, while the 2JQ 5-R is active and ROHS3 compliant. DC cold resistance differs marginally (0.016 Ohms vs. 0.015 Ohms), which is within acceptable tolerance for fuse applications.

Q: Are there any packaging differences between these parts?

A: The 2JQ 5 is supplied in standard packaging, while the 2JQ 5-R is supplied in bulk packaging. Both maintain identical 2AG form factor dimensions (5mm x 15mm).

Q: Do both parts require a fuse holder?

A: Yes. Both the 2JQ 5 and 2JQ 5-R are cartridge fuses that require a compatible 2AG fuse holder for installation.

Q: What certifications apply to both parts?

A: Both parts carry CE, CSA, cURus, and PSE approvals, ensuring compliance with international safety standards.