Littelfuse 0298150.ZXB Automotive Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0298150.ZXB is a 150 A automotive fuse rated for 32 V DC operation with slow-blow response characteristics. This MEGA® series fuse is designed for bolt-mount automotive applications and is currently in active production status. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for this critical automotive protection component.

Substiute Parts

0298150.ZXB

Littelfuse Inc.In Stock: 16500298150.ZXB Datasheet

Current PartRFQ

0298150.UXT

Littelfuse Inc.In Stock: 10320298150.UXT Datasheet

Parametric EquivalentRFQ

0298150.ZXEH

Littelfuse Inc.In Stock: 23200298150.ZXEH Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Littelfuse 0298150.ZXB are determined by electrical and mechanical parameter equivalence. The following criteria establish substitution validity:

Critical Parameters for Substitution:

• Current Rating: 150 A (exact match required)
• Voltage Rating (DC): 32 V (exact match required)
• Response Time: Slow Blow (exact match required)
• Mounting Type: Bolt Mount (exact match required)
• Package / Case: Auto Link (exact match required)
• Breaking Capacity @ Rated Voltage: 2 kA (exact match required)
• Melting I²t: 100000 (exact match required)
• Operating Temperature Range: -40°C ~ 125°C (exact match required)
• DC Cold Resistance: 0.000352 Ohms (exact match required)
• Physical Dimensions: 1.149" L x 0.750" W x 0.390" H (exact match required)

All identified substitute parts meet these electrical and mechanical requirements and are manufactured by Littelfuse Inc. within the MEGA® series.

Parameter Comparison

Engineering Selection Recommendations

All three part numbers—0298150.ZXB, 0298150.UXT, and 0298150.ZXEH—are electrically and mechanically equivalent and interchangeable for automotive fuse applications requiring 150 A at 32 V DC with slow-blow characteristics.

Approval Agency Consideration:

• 0298150.ZXB and 0298150.UXT carry cULus approval
• 0298150.ZXEH carries UL approval

Both certifications satisfy automotive regulatory requirements. Selection between these parts may be based on inventory availability, supply chain logistics, or specific regional certification requirements.

Inventory Status:

• 0298150.ZXEH: 2218 Pcs (highest availability)
• 0298150.ZXB: 1547 Pcs
• 0298150.UXT: 950 Pcs

Frequently Asked Questions (FAQ)

Q: Are these parts truly interchangeable? A: Yes. The 0298150.ZXB, 0298150.UXT, and 0298150.ZXEH are parametrically equivalent across all electrical and mechanical specifications, including current rating, voltage rating, response time, mounting configuration, physical dimensions, and thermal characteristics.

Q: What determines if a part can substitute for the 0298150.ZXB? A: Substitution requires exact matching of current rating (150 A), voltage rating (32 V DC), response time (Slow Blow), mounting type (Bolt Mount), package type (Auto Link), breaking capacity (2 kA), melting I²t (100000), operating temperature range (-40°C ~ 125°C), DC cold resistance (0.000352 Ohms), and physical dimensions (1.149" L x 0.750" W x 0.390" H).

Q: Do the different approval agencies affect compatibility? A: No. Both cULus and UL certifications are recognized for automotive applications. The choice between them depends on regional requirements or customer specifications, not on electrical or mechanical compatibility.

Q: Can I mix these part numbers in the same application? A: Yes. Since all three parts are electrically and mechanically identical, they can be used interchangeably within the same circuit or assembly without modification.

Q: What is the significance of the part number suffix variations? A: The suffixes (.ZXB, .UXT, .ZXEH) represent different manufacturing or certification variants of the same electrical and mechanical design. The core specifications remain identical across all variants.