Littelfuse 0298250.UXT Automotive Fuse 250A 32VDC Auto Link Equivalent & Substitute Parts

Part Overview

The Littelfuse 0298250.UXT is a 250A automotive fuse rated for 32VDC operation with slow-blow response characteristics and bolt-mount Auto Link packaging. This component is classified as Active product status and is designed for automotive electrical circuit protection applications requiring high current capacity and reliable performance across extended temperature ranges. Substitute parts are identified to provide alternative sourcing options while maintaining identical electrical and mechanical specifications for direct replacement in automotive fuse applications.

Substiute Parts

0298250.UXT

Littelfuse Inc.In Stock: 11640298250.UXT Datasheet

Current PartRFQ

0298250.ZXB

Littelfuse Inc.In Stock: 17770298250.ZXB Datasheet

Parametric EquivalentRFQ

0298250.ZXEH

Littelfuse Inc.In Stock: 17920298250.ZXEH Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute parts 0298250.ZXB and 0298250.ZXEH are classified as parametric equivalents to the primary part 0298250.UXT. Substitution eligibility is determined by matching the following critical parameters:

• Current Rating: 250 A
• Voltage Rating (DC): 32 V
• Response Time: Slow Blow
• Mounting Type: Bolt Mount
• Package / Case: Auto Link
• Breaking Capacity @ Rated Voltage: 2 kA
• Melting I²t: 389000
• Physical Dimensions: 1.149" L x 0.750" W x 0.390" H
• DC Cold Resistance: 0.000201 Ohms
• Operating Temperature Range: -40°C ~ 125°C
• Series: MEGA®
• Manufacturer: Littelfuse Inc.

All three part numbers share identical electrical and mechanical specifications, enabling direct substitution in automotive fuse applications without circuit redesign or performance degradation.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—0298250.UXT, 0298250.ZXB, and 0298250.ZXEH—are Active status products manufactured by Littelfuse Inc. and carry identical ROHS3 and REACH compliance certifications. Selection between these equivalents is based on inventory availability and supply chain considerations rather than technical performance differentiation. Each part is suitable for direct substitution in automotive 250A 32VDC fuse applications requiring slow-blow response and bolt-mount Auto Link packaging.

Frequently Asked Questions (FAQ)

Q: Can 0298250.ZXB and 0298250.ZXEH be used interchangeably with 0298250.UXT?

A: Yes. All three part numbers are parametric equivalents with identical electrical ratings (250A, 32VDC), response characteristics (slow-blow), mechanical specifications (bolt-mount Auto Link), and physical dimensions. Direct substitution is supported without circuit modification.

Q: What determines substitution eligibility for this automotive fuse?

A: Substitution is determined by matching current rating, voltage rating, response time, mounting type, package style, breaking capacity, melting I²t, operating temperature range, and physical dimensions. All three parts meet these criteria identically.

Q: Are there compliance differences between the substitute parts?

A: No. All three parts carry identical ROHS3 Compliant and REACH Unaffected certifications, ensuring equivalent regulatory compliance for automotive applications.

Q: Does the Auto Link package differ between part numbers?

A: No. All three parts use identical Auto Link bolt-mount packaging with matching physical dimensions of 1.149" L x 0.750" W x 0.390" H.

Q: What is the DC cold resistance specification, and is it identical across all parts?

A: DC cold resistance is 0.000201 Ohms for all three part numbers, ensuring identical electrical performance in circuit protection applications.