PSR-28473-C-2 Equivalent & Substitute Parts

Part Overview

The PSR-28473-C-2 is a PTC resettable fuse manufactured by Littelfuse Inc. This component is classified as obsolete, indicating it is no longer in active production. The product carries RoHS Compliant certification and is assigned ECCN EAR99 classification. Due to its obsolete status, identification of functionally equivalent active alternatives is necessary for ongoing design support and procurement continuity.

Substiute Parts

PSR-28473-C-2

Littelfuse Inc.In Stock: 1062PSR-28473-C-2 Datasheet

Current PartRFQ

1206L400/12SLWR

Littelfuse Inc.In Stock: 63611206L400/12SLWR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the obsolete PSR-28473-C-2 is based on the following criteria derived from the provided parameters:

Primary Substitution Criteria:

• Manufacturer alignment (Littelfuse Inc.)
• Product category (PTC Resettable Fuse)
• Regulatory compliance (RoHS status, ECCN classification, HTSUS code alignment)
• Active product status for long-term availability

The substitute part 1206L400/12SLWR meets these criteria as an active Littelfuse product within the same regulatory framework and component category.

Parameter Comparison

Engineering Selection Recommendations

The 1206L400/12SLWR serves as the active equivalent for the obsolete PSR-28473-C-2 based on the following factors:

Product Status: The substitute part maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete main part.

Regulatory Compliance: Both components share identical ECCN (EAR99) and HTSUS (8533.40.8070) classifications, confirming regulatory equivalence. The substitute part carries ROHS3 Compliant certification, representing current compliance standards.

Manufacturer Consistency: Both parts originate from Littelfuse Inc., maintaining design philosophy and quality standards within the same manufacturer ecosystem.

Certification and Approval: The substitute part holds cURus and TUV approvals, providing third-party validation of electrical and safety performance. REACH Unaffected status confirms compliance with chemical substance regulations.

Moisture Handling: MSL rating of 1 (Unlimited) on the substitute part indicates no moisture sensitivity constraints during storage and handling.

Frequently Asked Questions (FAQ)

Q: What is the primary reason for substituting PSR-28473-C-2?

A: The PSR-28473-C-2 is classified as obsolete and no longer manufactured. The 1206L400/12SLWR is an active Littelfuse product that maintains equivalent regulatory classification and compliance status.

Q: Are the regulatory classifications identical between the main part and substitute?

A: Yes. Both components share ECCN EAR99 and HTSUS 8533.40.8070 classifications. The substitute part carries current ROHS3 Compliant certification and REACH Unaffected status.

Q: What certifications does the substitute part hold?

A: The 1206L400/12SLWR holds cURus and TUV approvals, providing independent verification of electrical safety and performance characteristics.

Q: Is there a difference in packaging between these parts?

A: The main part packaging is not specified in the provided data. The substitute part is available in Cut Tape (CT) and Digi-Reel® packaging formats with 1206 (3216 Metric) surface mount configuration.

Q: What is the moisture sensitivity level of the substitute part?

A: The 1206L400/12SLWR carries MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions for storage and handling.

Q: Can the substitute part be used in new designs?

A: Yes. The active product status of 1206L400/12SLWR makes it suitable for both replacement applications and new design implementations.