Littelfuse 0891030.U 30A 58VDC Automotive Miniature Blade Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0891030.U is a 30A 58VDC automotive miniature blade fuse designed for fast-blow protection in automotive electrical systems. This component belongs to the LP MINI® 891 series and is classified as an active product. Alternative part numbers within the same electrical and mechanical specifications are available to support supply chain flexibility and inventory management across different packaging and distribution channels.

Substiute Parts

0891030.U

Littelfuse Inc.In Stock: 14800891030.U Datasheet

Current PartRFQ

0891030.H

LittelfuseIn Stock: 8860891030.H Datasheet

Parametric EquivalentRFQ

0891030.NXS

Littelfuse Inc.In Stock: 134860891030.NXS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0891030.U 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)
• DC Cold Resistance: 0.00206 Ohms (exact match required)
• Operating Temperature Range: -40°C to 125°C (exact match required)
• Compliance: ROHS3 Compliant, MSL 1 (exact match required)

All substitute parts listed below meet these criteria and are manufactured by Littelfuse Inc. within the LP MINI® 891 series. Differences exist only in packaging designation and inventory availability, not in electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—0891030.U, 0891030.H, and 0891030.NXS—are functionally equivalent and interchangeable for applications requiring a 30A 58VDC automotive miniature blade fuse. Selection between these alternatives should be based on:

• Inventory availability and lead time requirements
• Packaging and distribution channel preferences
• Supply chain sourcing strategy

All parts maintain active product status and full compliance with ROHS3 and MSL 1 specifications. No electrical or mechanical performance differences exist between these variants.

Frequently Asked Questions (FAQ)

Q: Can 0891030.H be used as a direct replacement for 0891030.U?

A: Yes. Both parts are electrically and mechanically identical, with identical current ratings (30A), voltage ratings (58VDC), response time (Fast Blow), package type (Blade, Miniature Low Profile), breaking capacity (1kA), and operating temperature range (-40°C to 125°C).

Q: What is the difference between 0891030.U, 0891030.H, and 0891030.NXS?

A: These part numbers represent the same fuse with different packaging designations and inventory channels. All electrical and mechanical specifications are identical. Differences exist only in distribution packaging and availability.

Q: Are all three parts ROHS3 compliant?

A: Yes. All three variants—0891030.U, 0891030.H, and 0891030.NXS—are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level.

Q: What is the physical size of this miniature blade fuse?

A: The fuse dimensions are 0.429" L x 0.150" W x 0.331" H, equivalent to 10.90mm x 3.80mm x 8.40mm. This is the standard size for LP MINI® 891 series automotive miniature blade fuses.

Q: What is the DC cold resistance specification?

A: The DC cold resistance for all three part numbers is 0.00206 Ohms, measured at 20°C under no-load conditions.

Q: Can this fuse be used in applications outside the -40°C to 125°C temperature range?

A: No. The operating temperature range is specified as -40°C to 125°C. Operation outside this range is not supported.

Q: What is the breaking capacity of this fuse?

A: The breaking capacity at rated voltage (58VDC) is 1 kA, with a melting I²t value of 1110.