LKN-5 Equivalent & Substitute Parts

Part Overview

The LKN-5 is a Super Lag Renewable Link fuse manufactured by Eaton - Bussmann Electrical Division, rated for 5/250 applications. This component is classified as obsolete, making substitute part identification necessary for ongoing system maintenance and new installations where legacy components are no longer available. The part maintains RoHS compliance and carries an MSL rating of 1 (Unlimited), indicating minimal moisture sensitivity concerns during storage and handling.

Substiute Parts

LKN-5

Eaton - Bussmann Electrical DivisionIn Stock: 869LKN-5 Datasheet

Current PartRFQ

LPN-RK-5SP

Eaton - Bussmann Electrical DivisionIn Stock: 1065LPN-RK-5SP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The LKN-5 has been identified with one manufacturer-recommended substitute: LPN-RK-5SP. This substitution is based on the following alignment criteria:

• Both parts are manufactured by Eaton - Bussmann Electrical Division, ensuring consistent design and quality standards
• Both components share the same HTSUS classification (8536.10.0040), indicating equivalent electrical and mechanical function within fuse product categories
• Both parts maintain RoHS compliance, satisfying environmental and regulatory requirements
• The substitute part is currently in Active product status, providing long-term availability and supply chain stability

The LPN-RK-5SP represents a Low Peak Dual Element fuse design, which serves as the active-generation equivalent to the obsolete Super Lag Renewable Link technology.

Parameter Comparison

Engineering Selection Recommendations

The LPN-RK-5SP is the designated manufacturer substitute for the obsolete LKN-5. Both components satisfy identical regulatory and compliance requirements, including RoHS compliance and EAR99 export classification. The substitute part's Active product status ensures availability for immediate procurement and future reorders, eliminating supply chain risk associated with obsolete component sourcing.

Selection of the LPN-RK-5SP is supported by manufacturer recommendation and shared electrical classification under HTSUS code 8536.10.0040, confirming functional equivalence within the fuse product category.

Frequently Asked Questions (FAQ)

Q: Why is the LKN-5 no longer available? A: The LKN-5 has reached end-of-life status and is classified as obsolete by the manufacturer. The LPN-RK-5SP represents the current-generation equivalent in Eaton's product portfolio.

Q: Are both parts RoHS compliant? A: Yes. Both the LKN-5 and LPN-RK-5SP maintain full RoHS compliance, meeting environmental and regulatory standards for electrical components.

Q: What is the packaging difference between these parts? A: The LKN-5 is supplied in standard packaging, while the LPN-RK-5SP is supplied in Bulk packaging. Verify packaging requirements for your procurement and assembly processes.

Q: Can the LPN-RK-5SP be used as a direct replacement? A: The LPN-RK-5SP is the manufacturer-recommended substitute based on shared electrical classification and compliance standards. Confirm mechanical fit and electrical specifications within your specific application before implementation.

Q: Are both parts subject to moisture sensitivity concerns? A: The LKN-5 carries an MSL rating of 1 (Unlimited), indicating no practical moisture sensitivity. The LPN-RK-5SP is rated as Not Applicable for MSL, indicating no moisture sensitivity restrictions.