Littelfuse 0891030.NXT Automotive Fuse – Equivalent & Substitute Parts

Part Overview

The Littelfuse 0891030.NXT is a 30 A, 58 V DC automotive blade fuse in the LP MINI® 891 series, designed for miniature (low profile) applications requiring fast-blow response characteristics. This part is classified as obsolete, necessitating identification of active equivalent alternatives for ongoing procurement and system maintenance. Substitute parts maintain identical electrical and mechanical specifications while offering improved availability through active product status.

Substiute Parts

0891030.NXT

Littelfuse Inc.In Stock: 9930891030.NXT Datasheet

Current PartRFQ

0891030.NXS

Littelfuse Inc.In Stock: 134860891030.NXS Datasheet

DirectRFQ

0891030.H

LittelfuseIn Stock: 8860891030.H Datasheet

Parametric EquivalentRFQ

0891030.U

Littelfuse Inc.In Stock: 14800891030.U Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0891030.NXT is determined by strict equivalence across the following critical parameters:

• Current Rating: 30 A (exact match required)
• Voltage Rating (DC): 58 V (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: Blade, Miniature (Low Profile) (exact match required)
• Breaking Capacity @ Rated Voltage: 1 kA (exact match required)
• Melting I²t: 1110 (exact match required)
• Operating Temperature Range: -40°C to 125°C (exact match required)
• DC Cold Resistance: 0.00206 Ohms (exact match required)

All identified substitute parts meet these criteria and are manufactured by Littelfuse Inc. within the LP MINI® 891 series. Substitutes differ only in packaging configuration (bulk vs. tape) and product status (active vs. obsolete).

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts (0891030.NXS, 0891030.H, 0891030.U) are direct functional equivalents to the obsolete 0891030.NXT. Selection should prioritize active product status and availability:

0891030.NXS is the primary recommended substitute, offering the highest inventory level (13,467 units) and active product status. This part is identical in all electrical and mechanical specifications.

0891030.H and 0891030.U are secondary alternatives, both active and ROHS3 compliant, with moderate inventory availability (808 and 1,428 units respectively).

All substitutes carry ROHS3 compliance and are suitable for direct replacement in applications currently using the 0891030.NXT. No design modifications or holder changes are required.

Frequently Asked Questions (FAQ)

Q: Can 0891030.NXS, 0891030.H, and 0891030.U be used interchangeably with 0891030.NXT?

A: Yes. All three parts are parametric equivalents with identical current rating (30 A), voltage rating (58 V DC), response time (fast blow), package type (blade, miniature low profile), breaking capacity (1 kA), melting I²t (1110), operating temperature range (-40°C to 125°C), and DC cold resistance (0.00206 Ohms). They are direct functional replacements.

Q: What is the difference between these substitute parts?

A: The substitutes differ only in packaging configuration and product status. 0891030.NXS is supplied in bulk packaging and has the highest inventory availability. 0891030.H and 0891030.U are also bulk-packaged alternatives with active status. The obsolete 0891030.NXT is no longer in active production.

Q: Are all substitutes ROHS3 compliant?

A: Yes. All substitute parts (0891030.NXS, 0891030.H, 0891030.U) are ROHS3 compliant, matching the compliance status of the original 0891030.NXT.

Q: Do these fuses require a specific holder?

A: Yes. All parts in this group are blade, miniature (low profile) fuses that require a compatible holder. The holder specification remains unchanged across all substitutes.

Q: Which substitute should I select for new designs?

A: For new designs and ongoing procurement, 0891030.NXS is the recommended choice due to active product status and superior inventory availability. 0891030.H and 0891030.U are valid alternatives if 0891030.NXS is unavailable.