LKN-500B Equivalent & Substitute Parts

Part Overview

The LKN-500B is a Super Lag Renewable Link fuse manufactured by Eaton - Bussmann Electrical Division. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing maintenance and system continuity. 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-500B

Eaton - Bussmann Electrical DivisionIn Stock: 927LKN-500B Datasheet

Current PartRFQ

LPN-RK-500SP

Eaton - Bussmann Electrical DivisionIn Stock: 965LPN-RK-500SP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the LKN-500B is based on the following criteria established by the manufacturer:

The LPN-RK-500SP is designated as the manufacturer-recommended substitute. Substitution eligibility is determined by:

• Identical HTSUS classification (8536.10.0040)
• Matching RoHS compliance status
• Equivalent electrical function within the fuse category
• Compatibility with the same application voltage and current ratings (500/250 designation)

The LPN-RK-500SP represents an active product line replacement, providing continuity for applications previously served by the LKN-500B.

Parameter Comparison

Engineering Selection Recommendations

The LPN-RK-500SP is the manufacturer-designated substitute for the obsolete LKN-500B. Both components maintain identical RoHS compliance and ECCN/HTSUS classifications, ensuring regulatory and trade compliance equivalence. The LPN-RK-500SP carries active product status, providing assured long-term availability and supply chain continuity compared to the obsolete LKN-500B.

Selection of the LPN-RK-500SP is supported by manufacturer recommendation and equivalent electrical classification within the fuse product category.

Frequently Asked Questions (FAQ)

Q: Why is the LKN-500B listed as obsolete? A: The LKN-500B has reached end-of-life status within the manufacturer's product portfolio. The LPN-RK-500SP represents the active replacement offering equivalent functionality.

Q: Are the LKN-500B and LPN-RK-500SP electrically equivalent? A: Both components share identical HTSUS classification (8536.10.0040) and RoHS compliance status, indicating functional equivalence within the fuse category for the 500/250 rating.

Q: What is the difference in packaging between these parts? A: The LKN-500B uses standard packaging, while the LPN-RK-500SP is supplied in bulk packaging. Packaging selection should align with procurement and inventory management requirements.

Q: Are both parts RoHS compliant? A: Yes. Both the LKN-500B and LPN-RK-500SP maintain full RoHS compliance status.

Q: What is the moisture sensitivity level for these fuses? A: The LKN-500B carries an MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling. The LPN-RK-500SP carries a Not Applicable MSL designation, typical for fuse components.