Littelfuse 0998250.UX-NH Automotive Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 0998250.UX-NH is a 250 A automotive fuse rated for 70 V DC operation with slow-blow response characteristics. This MEGA® series fuse features bolt-mount installation and Auto Link packaging, designed for automotive electrical protection applications. The part maintains Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified to provide alternative sourcing options while maintaining identical electrical and mechanical specifications for direct replacement applications.

Substiute Parts

0998250.UX-NH

Littelfuse Inc.In Stock: 11740998250.UX-NH Datasheet

Current PartRFQ

0998250.UX-2M6

Littelfuse Inc.In Stock: 13750998250.UX-2M6 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0998250.UX-NH are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution criteria include:

Electrical Parameters: Current Rating (250 A), Voltage Rating (70 V DC), Response Time (Slow Blow), Breaking Capacity (2.5 kA), and Melting I²t (220000)

Mechanical Parameters: Mounting Type (Bolt Mount), Package / Case (Auto Link), Physical Dimensions (1.150" L x 0.750" W x 0.390" H), and Color (Pink)

Compliance Parameters: RoHS3 Compliance and REACH Unaffected status

Thermal Parameters: Operating Temperature Range (-40°C ~ 125°C) and DC Cold Resistance (0.0017 Ohms)

Parts meeting all specified parameters are classified as direct parametric equivalents suitable for interchangeable use in automotive fuse applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 0998250.UX-NH and 0998250.UX-2M6 are Active product status components manufactured by Littelfuse Inc. within the MEGA® series. Selection between these parts is based on availability and inventory considerations rather than electrical or mechanical differentiation.

The 0998250.UX-NH maintains 1080 pieces in stock inventory, while the 0998250.UX-2M6 provides 1308 pieces in stock inventory. Both parts carry identical RoHS3 compliance certification and REACH unaffected designation, meeting current regulatory requirements for automotive applications.

The substitute part 0998250.UX-2M6 includes documented Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.

For applications requiring the 250 A, 70 V DC automotive fuse specification with slow-blow response and bolt-mount installation, either part number provides equivalent electrical protection and mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the 0998250.UX-2M6 be used as a direct replacement for the 0998250.UX-NH?

A: Yes. Both parts are parametrically equivalent across all electrical specifications (250 A current rating, 70 V DC voltage rating, slow-blow response, 2.5 kA breaking capacity), mechanical specifications (bolt-mount installation, Auto Link package, identical physical dimensions), and compliance certifications (RoHS3 compliant, REACH unaffected). Direct substitution is supported.

Q: What are the critical parameters that define substitution eligibility for this fuse category?

A: Substitution eligibility is determined by matching current rating (250 A), voltage rating (70 V DC), response time (slow-blow), breaking capacity (2.5 kA), melting I²t (220000), mounting type (bolt mount), package type (Auto Link), physical dimensions (1.150" L x 0.750" W x 0.390" H), operating temperature range (-40°C ~ 125°C), and DC cold resistance (0.0017 Ohms).

Q: Are there differences in packaging or handling requirements between these parts?

A: Both parts are supplied in Bulk packaging. The substitute part 0998250.UX-2M6 specifies Moisture Sensitivity Level 1 (Unlimited), indicating no moisture-related storage or handling restrictions. Standard handling procedures for automotive fuses apply to both parts.

Q: Do both parts meet automotive compliance standards?

A: Both the 0998250.UX-NH and 0998250.UX-2M6 maintain RoHS3 compliance and REACH unaffected status. Both are classified under ECCN EAR99 and HTSUS 8536.10.0040 for regulatory and tariff purposes.

Q: What is the operating temperature range for these fuses?

A: Both parts operate across the temperature range of -40°C to 125°C, supporting automotive environmental conditions from cold-start to high-temperature engine compartment applications.