PSR-29330-C Equivalent & Substitute Parts

Part Overview

The PSR-29330-C is a PTC resettable fuse manufactured by Littelfuse Inc. This component is classified as obsolete, indicating it is no longer in active production. PTC resettable fuses function as self-resetting overcurrent protection devices that automatically restore functionality after a fault condition is cleared. Due to the obsolete status of the PSR-29330-C, identification of equivalent substitute parts is necessary to maintain design continuity and ensure component availability for new production runs and field replacements.

Substiute Parts

PSR-29330-C

Littelfuse Inc.In Stock: 1034PSR-29330-C Datasheet

Current PartRFQ

1210L500/12SLPR

Littelfuse Inc.In Stock: 10481210L500/12SLPR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PSR-29330-C are identified based on functional equivalence within the PTC resettable fuse category. The substitution logic is determined by the following criteria:

Functional Category: Both the main part and substitute must operate as PTC resettable fuses, providing automatic overcurrent protection with self-resetting capability.

Manufacturer Consistency: Littelfuse Inc. is the original manufacturer; substitute parts from the same manufacturer ensure design continuity and compatibility with existing supply chain documentation.

Regulatory Compliance: All substitute parts must maintain RoHS compliance status and carry the same ECCN and HTSUS classifications, ensuring regulatory equivalence for procurement and export purposes.

Product Status: Active product status of substitute parts ensures ongoing availability and manufacturer support, addressing the obsolescence of the original component.

Parameter Comparison

Engineering Selection Recommendations

The 1210L500/12SLPR serves as a functional equivalent to the PSR-29330-C for applications requiring PTC resettable fuse protection. Selection of this substitute part is supported by the following factors:

Product Status Alignment: The substitute part maintains active production status, ensuring long-term component availability and manufacturer technical support. This directly addresses the obsolescence limitation of the original PSR-29330-C.

Regulatory Compliance Equivalence: Both parts carry identical ECCN (EAR99) and HTSUS (8533.40.8070) classifications, confirming regulatory equivalence for procurement, inventory management, and international trade purposes.

RoHS Compliance Maintenance: The substitute part exceeds the original RoHS compliance requirement by meeting ROHS3 standards, ensuring compatibility with current environmental and safety regulations.

Moisture Sensitivity Specification: The substitute part provides explicit MSL rating of 1 (Unlimited), indicating superior handling flexibility during manufacturing and storage processes compared to the unspecified MSL of the original part.

Frequently Asked Questions (FAQ)

Q: Can the 1210L500/12SLPR directly replace the PSR-29330-C in existing designs?

A: The 1210L500/12SLPR is functionally equivalent as a PTC resettable fuse from the same manufacturer. Both parts share identical ECCN and HTSUS classifications. Physical form factor and electrical ratings must be verified against your specific application requirements before implementation.

Q: What does the obsolete status of the PSR-29330-C mean for procurement?

A: Obsolete status indicates the PSR-29330-C is no longer manufactured by Littelfuse Inc. Existing inventory may be available through authorized distributors, but long-term supply cannot be guaranteed. Transition to an active substitute part is recommended for new production designs.

Q: Are there differences in RoHS compliance between the two parts?

A: The PSR-29330-C meets RoHS compliance standards. The substitute part 1210L500/12SLPR meets the more recent ROHS3 standard, which represents an enhanced compliance level. Both parts are suitable for RoHS-regulated applications.

Q: What is the significance of the MSL rating on the substitute part?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life and handling flexibility without special moisture control measures. The PSR-29330-C does not specify an MSL rating. The explicit MSL 1 rating on the substitute part provides clearer handling and storage requirements for manufacturing operations.

Q: Are both parts classified under the same tariff code?

A: Yes, both the PSR-29330-C and 1210L500/12SLPR share the identical HTSUS code 8533.40.8070, confirming they are classified in the same product category for customs and trade purposes.