LPS-RK-40SP Equivalent & Substitute Parts

Part Overview

The LPS-RK-40SP is a low-peak dual element fuse manufactured by Eaton - Bussmann Electrical Division. This component is classified as an active product with RoHS compliance and is currently available in bulk packaging with 934 units in stock. The LPS-RK-40SP serves as a protective device in electrical and industrial applications where dual-element fuse technology is required. Identifying equivalent substitute parts ensures design flexibility, supply chain continuity, and access to alternative sourcing options when the primary part becomes unavailable or when system requirements necessitate alternative component specifications.

Substiute Parts

LPS-RK-40SP

Eaton - Bussmann Electrical DivisionIn Stock: 977LPS-RK-40SP Datasheet

Current PartRFQ

LSRK040.T

Littelfuse Inc.In Stock: 961LSRK040.T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LPS-RK-40SP is determined by alignment of the following critical parameters:

• Fuse Type & Technology: Dual-element fuse construction
• Current Rating: 40A nominal rating
• Voltage Rating: Electrical isolation and protection capability at specified voltage levels
• Response Characteristic: Slow-blow (time-delay) response profile
• Class Rating: RK1 classification for coordination with electrical systems
• Physical Form Factor: Cartridge configuration with standardized dimensions
• Regulatory Compliance: RoHS compliance and international approval certifications (CE, CSA, UL)
• Electrical Classification: ECCN EAR99 and HTSUS 8536.10.0040 commodity code alignment

The substitute part LSRK040.T from Littelfuse Inc. meets these substitution criteria through equivalent electrical specifications, matching current and voltage ratings, identical fuse class designation, and compatible physical packaging requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the LPS-RK-40SP and LSRK040.T maintain active product status with current manufacturer support. The LPS-RK-40SP is supplied by Eaton - Bussmann Electrical Division with RoHS compliance certification. The LSRK040.T substitute from Littelfuse Inc. provides ROHS3 compliance, which represents an enhanced RoHS standard. Both components share identical ECCN and HTSUS classifications, confirming regulatory alignment for export and commodity purposes. The LSRK040.T includes documented approval certifications from CE, CSA, QPL, and UL, establishing its suitability for regulated electrical and industrial applications. Selection between these components should be based on supply availability, packaging requirements (bulk versus box), and specific system integration needs.

Frequently Asked Questions (FAQ)

Q: What makes LSRK040.T a valid substitute for LPS-RK-40SP?

A: The LSRK040.T meets substitution criteria through matching current rating (40A), identical fuse class designation (RK1), equivalent slow-blow response characteristic, and alignment of regulatory classifications (ECCN EAR99, HTSUS 8536.10.0040). Both components are active products with RoHS compliance and international approvals.

Q: Are there packaging differences between these parts?

A: Yes. The LPS-RK-40SP is supplied in bulk packaging, while the LSRK040.T is packaged in boxes. Packaging selection depends on procurement volume requirements and inventory management practices.

Q: What is the significance of RoHS3 compliance on the LSRK040.T?

A: ROHS3 represents an updated RoHS standard with enhanced environmental requirements. The LSRK040.T's ROHS3 compliance exceeds the RoHS compliance of the LPS-RK-40SP, making it suitable for applications with stricter environmental specifications.

Q: Do both parts require a holder for installation?

A: The LSRK040.T is documented as requiring a holder for installation. Installation requirements for the LPS-RK-40SP are not specified in the provided data.

Q: What approval certifications apply to the LSRK040.T?

A: The LSRK040.T carries CE, CSA, QPL, and UL approvals, establishing compliance with North American and international electrical safety standards.

Q: Are the physical dimensions compatible between these parts?

A: The LSRK040.T dimensions are specified as 1.063" Dia x 5.500" L (27.00mm x 139.70mm) in cartridge form factor. Dimensional specifications for the LPS-RK-40SP are not provided in the input data.