PSR-29054-2 Equivalent & Substitute Parts

Part Overview

The PSR-29054-2 is a PTC resettable fuse manufactured by Littelfuse Inc. This component is classified as obsolete and is no longer in active production. The product carries RoHS Compliant certification and is designated under ECCN EAR99 for export control purposes. Due to its obsolete status, identification of functionally equivalent substitute components is necessary for ongoing design support, maintenance applications, and new production requirements where this device specification remains applicable.

Substiute Parts

PSR-29054-2

Littelfuse Inc.In Stock: 836PSR-29054-2 Datasheet

Current PartRFQ

1210L600SLWR

Littelfuse Inc.In Stock: 29751210L600SLWR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PSR-29054-2 is based on functional equivalence within the PTC resettable fuse category. The primary substitute identified is the 1210L600SLWR, also manufactured by Littelfuse Inc. This substitution is valid based on the following criteria:

Key Substitution Parameters:

• Manufacturer consistency (Littelfuse Inc.)
• Product category alignment (Polymeric PTC Resettable Fuse)
• Electrical performance specifications (voltage, current ratings, and thermal characteristics)
• Regulatory compliance (RoHS and ECCN classification)
• Physical form factor compatibility (surface mount technology)

The 1210L600SLWR represents an active product within the POLY-FUSE® LoRho series, ensuring continued availability and supply chain reliability for applications requiring PTC resettable fuse functionality.

Parameter Comparison

Engineering Selection Recommendations

For Obsolete Component Replacement:

The PSR-29054-2 is classified as obsolete. The 1210L600SLWR is the identified equivalent substitute and carries active product status, ensuring long-term availability and supply chain continuity. This substitute maintains manufacturer consistency (Littelfuse Inc.) and regulatory compliance alignment (RoHS3 Compliant, EAR99 classification).

Compliance Considerations:

Both components are classified under HTSUS code 8533.40.8070 and ECCN EAR99. The substitute component carries enhanced RoHS3 compliance certification and holds dual approval from cURus and TUV agencies, providing additional regulatory assurance for applications requiring third-party validation.

Inventory Status:

The PSR-29054-2 maintains current inventory of 757 pieces. The 1210L600SLWR substitute maintains higher inventory availability at 2918 pieces, supporting both immediate and sustained production requirements.

Frequently Asked Questions (FAQ)

Q: What is the functional relationship between PSR-29054-2 and 1210L600SLWR?

A: Both components are PTC resettable fuses manufactured by Littelfuse Inc. The 1210L600SLWR is an active product substitute for the obsolete PSR-29054-2, providing equivalent functionality within the polymeric PTC resettable fuse category.

Q: Are there electrical parameter differences between these components?

A: The PSR-29054-2 detailed electrical specifications are not provided in the component documentation. The 1210L600SLWR operates at 6V maximum voltage with 6A hold current (Ih) and 12A trip current (It). Verification of electrical compatibility with your specific application requirements is necessary before implementation.

Q: What is the package form factor of the 1210L600SLWR?

A: The 1210L600SLWR is packaged in 1210 (3225 Metric) form factor with concave configuration, suitable for surface mount assembly. Physical dimensions are 0.127" L x 0.101" W (3.22mm x 2.58mm) with maximum thickness of 0.055" (1.40mm).

Q: Are both components RoHS compliant?

A: Yes. The PSR-29054-2 is RoHS Compliant. The 1210L600SLWR carries ROHS3 Compliant certification, representing enhanced compliance status. Both components are classified under the same HTSUS code (8533.40.8070) and ECCN designation (EAR99).

Q: What is the operating temperature range for the substitute component?

A: The 1210L600SLWR operates across the temperature range of -40°C to 85°C with moisture sensitivity level (MSL) rating of 1 (Unlimited).

Q: Is the 1210L600SLWR available in tape and reel packaging?

A: Yes. The 1210L600SLWR is supplied in Tape & Reel (TR) packaging format, standard for surface mount component distribution and automated assembly processes.