2JQ 4.6 Equivalent & Substitute Parts

Part Overview

The 2JQ 4.6 is a fast-blow glass cartridge fuse rated at 4.6 A, 350 V AC, and 140 V DC, manufactured by Bel Fuse Inc. This component is designed for use in 2AG holder applications with dimensions of 5mm x 15mm. The main part number 2JQ 4.6 is currently listed as obsolete, making identification of active equivalent parts essential for ongoing system maintenance and component procurement.

Substiute Parts

2JQ 3.5

Bel Fuse Inc.In Stock: 10902JQ 3.5 Datasheet

Current PartRFQ

2JQ 3.5-R

Bel Fuse Inc.In Stock: 11802JQ 3.5-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2JQ 4.6 is determined by strict equivalence across the following critical parameters:

• Current Rating: 4.6 A
• Voltage Rating - AC: 350 V
• Voltage Rating - DC: 140 V
• Fuse Type: Cartridge, Glass
• Response Time: Fast Blow
• Package / Case: 2AG, 5mm x 15mm
• Breaking Capacity @ Rated Voltage: 100A AC, 150A DC
• Melting I²t: 9
• Operating Temperature Range: -55°C ~ 125°C
• DC Cold Resistance: 0.023 Ohms

The substitute part 2JQ 4.6-R maintains identical electrical and mechanical specifications to the main part number, with the primary distinction being product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The 2JQ 4.6-R is the direct active equivalent to the obsolete 2JQ 4.6. Both parts are manufactured by Bel Fuse Inc. and maintain identical electrical and mechanical specifications. The 2JQ 4.6-R is currently in active production status with improved RoHS3 compliance, whereas the original 2JQ 4.6 is obsolete and RoHS non-compliant. For new designs and ongoing procurement, the 2JQ 4.6-R is the appropriate selection. Both parts carry equivalent international approvals including CE, CSA, cURus, and PSE certifications.

Frequently Asked Questions (FAQ)

Q: Can the 2JQ 4.6-R be used as a direct replacement for the 2JQ 4.6?

A: Yes. The 2JQ 4.6-R is electrically and mechanically equivalent to the 2JQ 4.6. Both parts share identical current ratings, voltage ratings, fuse type, response time, package dimensions, breaking capacity, and operating temperature range.

Q: What is the primary difference between 2JQ 4.6 and 2JQ 4.6-R?

A: The main differences are product status and compliance certification. The 2JQ 4.6 is obsolete and RoHS non-compliant, while the 2JQ 4.6-R is active in production and ROHS3 compliant.

Q: Are the package dimensions identical between these parts?

A: Yes. Both parts use the 2AG holder format with dimensions of 5mm x 15mm (0.201" Dia x 0.543" L).

Q: Do both parts meet the same international certifications?

A: Yes. Both the 2JQ 4.6 and 2JQ 4.6-R carry CE, CSA, cURus, and PSE approvals.

Q: What is the melting I²t value for these fuses?

A: The melting I²t value is 9 for both the 2JQ 4.6 and 2JQ 4.6-R.