2JS 6 Equivalent & Substitute Parts

Part Overview

The 2JS 6 is a 6A 350VAC/140VDC glass cartridge fuse in 2AG form factor (5mm x 15mm) manufactured by Bel Fuse Inc. This slow-blow fuse is designed for applications requiring reliable overcurrent protection with a breaking capacity of 100A AC and 150A DC. The main part (2JS 6) carries an obsolete product status, making identification of active equivalent parts essential for procurement and design continuity.

Substiute Parts

2JS 6

Bel Fuse Inc.In Stock: 6912JS 6 Datasheet

Current PartRFQ

2JS 6-R

Bel Fuse Inc.In Stock: 10862JS 6-R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2JS 6 is determined by strict equivalence across the following critical parameters:

• Current Rating: 6 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: Slow Blow (exact match required)
• Breaking Capacity: 100A AC, 150A DC (exact match required)
• Melting I²t: 211 (exact match required)

The substitute part 2JS 6-R meets all electrical and mechanical parameters required for direct substitution. Both parts are manufactured by Bel Fuse Inc. and share identical functional specifications.

Parameter Comparison

Engineering Selection Recommendations

The 2JS 6-R is the direct active equivalent for the obsolete 2JS 6. Selection of 2JS 6-R is appropriate for all new designs and procurement activities. The substitute part maintains identical electrical performance and mechanical compatibility while offering improved compliance status. The 2JS 6-R carries ROHS3 compliance and active product status, ensuring long-term availability and regulatory alignment. Both parts hold equivalent international certifications (CE, CSA, PSE) with the 2JS 6-R additionally certified as cURus.

Frequently Asked Questions (FAQ)

Q: Can 2JS 6-R be used as a direct replacement for 2JS 6?

A: Yes. The 2JS 6-R meets all electrical and mechanical specifications of the 2JS 6, including current rating, voltage ratings, fuse type, package dimensions, response time, and breaking capacity. Both parts are interchangeable in applications designed for the 2AG form factor.

Q: What is the difference between 2JS 6 and 2JS 6-R?

A: The primary differences are product status and compliance. The 2JS 6 is obsolete, while 2JS 6-R is active. The 2JS 6-R is ROHS3 compliant, whereas the 2JS 6 is non-compliant. DC cold resistance differs slightly (0.014 Ohms vs. 0.015 Ohms). Certifications are equivalent with minor agency variations.

Q: Are there packaging differences between these parts?

A: The 2JS 6 is available in standard packaging, while 2JS 6-R is supplied in bulk packaging. Both maintain the same 2AG, 5mm x 15mm physical dimensions and are compatible with identical fuse holders.

Q: What certifications apply to these fuses?

A: Both parts carry CE, CSA, and PSE certifications. The 2JS 6 additionally holds UR certification, while 2JS 6-R holds cURus certification. All certifications are recognized for industrial and consumer applications.

Q: Is the slight difference in DC cold resistance significant?

A: The DC cold resistance difference (0.015 Ohms vs. 0.014 Ohms) is within normal manufacturing tolerance and does not affect functional performance or substitution eligibility.