2JS 1.5-R Equivalent & Substitute Parts

Part Overview

The 2JS 1.5-R is a 1.5 A slow-blow glass cartridge fuse manufactured by Bel Fuse Inc., rated for 350 V AC and 140 V DC operation. This component is designed for use in 2AG holder applications with a 5mm x 15mm form factor. The part maintains active product status and is widely stocked, making it a standard choice for circuit protection in industrial and commercial applications. Substitute parts are identified when equivalent current ratings, response characteristics, and mechanical compatibility are maintained within acceptable voltage and performance parameters.

Substiute Parts

2JS 1.5-R

Bel Fuse Inc.In Stock: 29982JS 1.5-R Datasheet

Current PartRFQ

022901.5MXP

Littelfuse Inc.In Stock: 1904022901.5MXP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 2JS 1.5-R are identified based on the following critical parameters:

• Current Rating: Must be 1.5 A to maintain circuit protection design intent
• Fuse Type: Must be cartridge glass construction with slow-blow response characteristics
• Package / Case: Must be 2AG form factor (5mm x 15mm) for mechanical compatibility with existing holders
• Voltage Ratings: AC and DC voltage ratings must meet or exceed the application requirements
• Operating Temperature: Must support the -55°C ~ 125°C range
• Compliance: Must maintain ROHS3 compliance and relevant approval agencies

The substitute part 022901.5MXP from Littelfuse Inc. meets these criteria with equivalent current rating, fuse type, package form factor, and operating temperature range. Voltage ratings are lower (250 V AC / 125 V DC) and must be verified for application compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the 2JS 1.5-R and 022901.5MXP maintain active product status and ROHS3 compliance. The primary consideration for selection is voltage rating compatibility. The 2JS 1.5-R provides higher voltage ratings (350 V AC / 140 V DC) compared to the 022901.5MXP (250 V AC / 125 V DC). Selection should be based on the actual circuit voltage requirements. Both parts share identical current ratings, response characteristics, and mechanical form factors, ensuring functional equivalence within their respective voltage specifications. Approval agency certifications differ slightly between manufacturers and should be cross-referenced with application requirements.

Frequently Asked Questions (FAQ)

Q: Can 022901.5MXP be used as a direct replacement for 2JS 1.5-R?

A: Mechanical and electrical compatibility exists for current rating, fuse type, response time, and package form factor. However, the lower voltage ratings of 022901.5MXP (250 V AC / 125 V DC) versus 2JS 1.5-R (350 V AC / 140 V DC) must be evaluated against circuit voltage specifications before substitution.

Q: Are both parts compatible with 2AG fuse holders?

A: Yes. Both the 2JS 1.5-R and 022901.5MXP are designed for 2AG holder applications with identical 5mm x 15mm form factors, ensuring mechanical compatibility.

Q: What is the significance of the melting I²t value difference?

A: The melting I²t values (2JS 1.5-R: 14.5 vs. 022901.5MXP: 15) are within acceptable tolerance for slow-blow fuses at the 1.5 A rating and do not prevent substitution based on this parameter alone.

Q: Do both parts support the same operating temperature range?

A: Yes. Both parts operate across the -55°C ~ 125°C temperature range, ensuring thermal compatibility in equivalent applications.

Q: What approval agencies certify each part?

A: 2JS 1.5-R carries CE, CSA, cURus, and PSE approvals. 022901.5MXP carries CE, CSA, PSE, and UL approvals. Application-specific certification requirements should be verified before selection.