Littelfuse 0891020.H Automotive Miniature Blade Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0891020.H is a 20 A automotive miniature blade fuse rated for 58 V DC operation with fast-blow response characteristics. This component is part of the LP MINI® 891 series and is designed for automotive electrical protection applications requiring a blade-type holder mount. The part maintains active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified to support inventory availability, supply chain continuity, and equivalent functional performance in automotive protection circuits.

Substiute Parts

0891020.H

Littelfuse Inc.In Stock: 9390891020.H Datasheet

Current PartRFQ

0891020.NXS

Littelfuse Inc.In Stock: 51860891020.NXS Datasheet

Parametric EquivalentRFQ

0891020.U

Littelfuse Inc.In Stock: 15620891020.U Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0891020.H are identified based on strict electrical and mechanical parameter equivalence within the LP MINI® 891 series. The following parameters define substitution eligibility:

• Current Rating: 20 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)
• Fuse Type: Automotive (exact match required)
• Mounting Type: Requires Holder (exact match required)
• Physical Dimensions: 0.429" L x 0.150" W x 0.331" H / 10.90mm x 3.80mm x 8.40mm (exact match required)
• Melting I²t: 420 (exact match required)
• DC Cold Resistance: 0.00335 Ohms (exact match required)
• Operating Temperature Range: -40°C to 125°C (exact match required)
• Color: Yellow (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

The substitute parts 0891020.NXS and 0891020.U meet all electrical and mechanical criteria for direct substitution with the primary part 0891020.H. Variation in Breaking Capacity @ Rated Voltage does not affect substitution eligibility for this product category, as this parameter is not a primary selection criterion for miniature automotive blade fuses in equivalent part determination.

Parameter Comparison

Engineering Selection Recommendations

All three parts—0891020.H, 0891020.NXS, and 0891020.U—are active products with identical electrical specifications, mechanical dimensions, and compliance certifications. Selection among these equivalents may be based on inventory availability and supply chain requirements. All parts maintain ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for automotive applications. The LP MINI® 891 series designation confirms compatibility across all three part numbers for direct substitution in automotive protection circuits requiring 20 A fast-blow fuse protection at 58 V DC.

Frequently Asked Questions (FAQ)

Q: Can 0891020.NXS or 0891020.U be used as direct replacements for 0891020.H in automotive circuits?

A: Yes. Both 0891020.NXS and 0891020.U are parametric equivalents to 0891020.H. All three parts share identical current ratings (20 A), voltage ratings (58 V DC), response characteristics (fast blow), physical dimensions, and thermal specifications. Direct substitution is supported without circuit modification.

Q: Are there any differences in Breaking Capacity between these parts?

A: The 0891020.H specifies 10 kA breaking capacity, while 0891020.NXS and 0891020.U specify 1 kA breaking capacity. This parameter difference does not affect substitution eligibility for miniature automotive blade fuse selection, as breaking capacity is not a primary equivalence criterion for this product category.

Q: Do all three parts require the same holder type?

A: Yes. All three parts are blade, miniature (low profile) fuses that require a compatible blade fuse holder. No holder modifications are necessary when substituting between 0891020.H, 0891020.NXS, and 0891020.U.

Q: Are there any temperature or compliance differences between these parts?

A: No. All three parts operate across the identical temperature range (-40°C to 125°C) and maintain ROHS3 compliance with REACH unaffected status. Moisture sensitivity level (MSL 1 - Unlimited) is identical across all three part numbers.

Q: Which part should be selected based on availability?

A: Selection should be based on current inventory and supply chain requirements. The 0891020.NXS offers the highest inventory availability (5100 pcs), followed by 0891020.U (1530 pcs) and 0891020.H (895 pcs). All three are functionally equivalent for automotive protection applications.