JLLS090.V Equivalent & Substitute Parts Reference

Part Overview

The JLLS090.V is a 90A 600 VAC/300 VDC fast-blow cartridge fuse manufactured by Littelfuse Inc. under the POWR-GARD® JLLS series. This component is designed for bolt-mount applications in electrical and industrial systems requiring Class T fuse protection. The part maintains active product status with 694 units in current inventory. Substitute parts are identified when equivalent electrical ratings, mechanical compatibility, and regulatory certifications align with the original specification.

Substiute Parts

JLLS090.V

Littelfuse Inc.In Stock: 743JLLS090.V Datasheet

Current PartRFQ

JJS-90

Eaton - Bussmann Electrical DivisionIn Stock: 1023JJS-90 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the JLLS090.V is determined by strict alignment of the following parameters:

• Current Rating: 90A (exact match required)
• Voltage Rating - AC: 600 VAC (exact match required)
• Response Time: Fast Blow (exact match required)
• Fuse Class: T (exact match required)
• Mounting Type: Bolt Mount (exact match required)
• Package / Case: Cylindrical, Blade Terminal (Bolt) (exact match required)
• Breaking Capacity @ Rated Voltage: 200kA (exact match required)
• Approval Agencies: CE, CSA, UL (all certifications required)

The JJS-90 manufactured by Eaton - Bussmann Electrical Division meets all mandatory electrical and mechanical parameters for direct substitution in applications requiring the JLLS090.V.

Parameter Comparison

Engineering Selection Recommendations

Both the JLLS090.V and JJS-90 are active products with full regulatory compliance across CE, CSA, and UL certifications. Selection between these components should be based on:

• Inventory availability and lead time requirements
• Packaging format preference (Box versus Bulk)
• RoHS compliance level requirements (ROHS3 versus RoHS)
• Established supplier relationships and procurement procedures

The JJS-90 represents a functionally equivalent alternative with identical electrical performance and mechanical compatibility for 90A 600 VAC fast-blow cartridge fuse applications.

Frequently Asked Questions (FAQ)

Q: Can the JJS-90 be used as a direct replacement for the JLLS090.V?

A: Yes. Both components share identical current rating (90A), AC voltage rating (600 VAC), response time (Fast Blow), fuse class (T), mounting type (Bolt Mount), package configuration (Cylindrical, Blade Terminal), breaking capacity (200kA), and approval certifications (CE, CSA, UL).

Q: What is the significance of the 300 VDC rating on the JLLS090.V?

A: The 300 VDC rating indicates the maximum DC voltage the fuse can safely interrupt. The JJS-90 specification does not explicitly state a DC voltage rating; verification with the manufacturer is necessary if DC application requirements are critical.

Q: Are there physical dimension differences between these parts?

A: Yes. The JLLS090.V measures 0.811" Dia x 1.642" L (20.60mm x 41.70mm), while the JJS-90 measures 1.660" L x 0.880" W (42.16mm x 22.35mm). Both are cylindrical bolt-mount cartridges; dimensional compatibility with the mounting hardware must be confirmed before substitution.

Q: What packaging differences exist?

A: The JLLS090.V is supplied in Box packaging, while the JJS-90 is supplied in Bulk packaging. This affects order quantities and handling procedures but does not impact electrical or mechanical performance.

Q: Are both parts RoHS compliant?

A: Yes. The JLLS090.V is ROHS3 Compliant, and the JJS-90 is RoHS Compliant. Both meet environmental compliance requirements for their respective standards.