Littelfuse 0891010.U Automotive Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0891010.U is a 10A, 58V DC automotive blade fuse in the LP MINI® 891 series. This miniature low-profile fuse is designed for automotive applications requiring fast-blow protection in 58V DC systems. The part is active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product series and manufacturer specifications.

Substiute Parts

0891010.U

Littelfuse Inc.In Stock: 9090891010.U Datasheet

Current PartRFQ

0891010.H

Littelfuse Inc.In Stock: 18230891010.H Datasheet

Parametric EquivalentRFQ

0891010.NXS

Littelfuse Inc.In Stock: 118310891010.NXS Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0891010.U are identified based on strict electrical and mechanical parameter matching within the LP MINI® 891 series. The critical parameters determining substitution eligibility are:

• Current Rating: 10 A (exact match required)
• Voltage Rating (DC): 58 V (exact match required)
• Response Time: Fast Blow (exact match required)
• Package Type: Blade, Miniature (Low Profile) (exact match required)
• Physical Dimensions: 10.90mm × 3.80mm × 8.40mm (exact match required)
• DC Cold Resistance: 0.00759 Ohms (exact match required)
• Melting I²t: 102 (exact match required)
• Operating Temperature Range: -40°C to 125°C (exact match required)
• RoHS3 Compliance: Required

The identified substitutes (0891010.H and 0891010.NXS) maintain all critical electrical and mechanical parameters. Variations in Breaking Capacity at Rated Voltage do not affect substitution eligibility as this parameter is not a limiting factor for the specified application parameters.

Parameter Comparison

Engineering Selection Recommendations

All three parts (0891010.U, 0891010.H, and 0891010.NXS) are active production items from Littelfuse Inc. with full RoHS3 compliance and REACH unaffected status. Selection between these parts may be based on inventory availability and supply chain considerations, as all maintain identical electrical performance and mechanical compatibility within 58V DC automotive fuse applications.

The 0891010.NXS variant offers the highest inventory availability (11,783 pcs), followed by 0891010.H (1,791 pcs) and 0891010.U (830 pcs). All parts are suitable for direct substitution in applications requiring 10A, 58V DC fast-blow automotive fuse protection with miniature blade form factor.

Frequently Asked Questions (FAQ)

Q: Can 0891010.H and 0891010.NXS be used interchangeably with 0891010.U?

A: Yes. All three parts maintain identical current rating (10A), voltage rating (58V DC), response time (Fast Blow), physical dimensions (10.90mm × 3.80mm × 8.40mm), DC cold resistance (0.00759 Ohms), and melting I²t (102). They are electrically and mechanically equivalent within the LP MINI® 891 series.

Q: What is the difference between these substitute parts?

A: The primary difference is Breaking Capacity at Rated Voltage: 0891010.U and 0891010.NXS are rated at 1kA, while 0891010.H is rated at 10kA. This parameter does not affect substitution eligibility for the specified 58V DC, 10A application. All other electrical and mechanical parameters are identical.

Q: Are all parts RoHS3 compliant?

A: Yes. All three parts (0891010.U, 0891010.H, and 0891010.NXS) are ROHS3 compliant with MSL rating of 1 (Unlimited) and REACH unaffected status.

Q: What mounting configuration is required?

A: All parts require a blade fuse holder for installation. The miniature low-profile blade design (10.90mm × 3.80mm × 8.40mm) is compatible with standard LP MINI® 891 series holders.

Q: What is the operating temperature range?

A: All substitute parts operate across -40°C to 125°C, suitable for automotive underhood and interior applications.