Littelfuse 0298175.ZXA Automotive Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0298175.ZXA is a 175 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 substitute parts are identified based on matching electrical specifications, mechanical form factor, and regulatory compliance certifications to ensure direct interchangeability in automotive electrical systems.

Substiute Parts

0298175.ZXA

Littelfuse Inc.In Stock: 14490298175.ZXA Datasheet

Current PartRFQ

0298175.UXT

Littelfuse Inc.In Stock: 12530298175.UXT Datasheet

Parametric EquivalentRFQ

0298175.ZXEH

Littelfuse Inc.In Stock: 21500298175.ZXEH Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0298175.ZXA are qualified based on the following critical parameters that determine functional interchangeability:

• Current Rating: 175 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: 168000 (exact match required)
• Physical Dimensions: 1.149" L × 0.750" W × 0.390" H (exact match required)
• DC Cold Resistance: 0.000294 Ohms (exact match required)
• Operating Temperature Range: -40°C to 125°C (exact match required)
• Series: MEGA® (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)

All identified substitute parts meet these criteria and are manufactured by Littelfuse Inc.

Parameter Comparison

Engineering Selection Recommendations

All three parts—0298175.ZXA, 0298175.UXT, and 0298175.ZXEH—are functionally equivalent and interchangeable based on electrical and mechanical specifications. Selection among these parts may be determined by:

• Regulatory certification requirements: 0298175.ZXA and 0298175.UXT carry cULus approval, while 0298175.ZXEH carries UL approval. Verify application-specific certification requirements.
• Inventory availability: 0298175.ZXEH has the highest stock level (2100 pcs), followed by 0298175.ZXA (1370 pcs) and 0298175.UXT (1188 pcs).
• All parts maintain active production status and full ROHS3 compliance.

Frequently Asked Questions (FAQ)

Q: Can 0298175.UXT be used as a direct replacement for 0298175.ZXA?

A: Yes. Both parts are identical in electrical specifications (175 A, 32 V DC, slow-blow response), mechanical form factor (Auto Link, bolt mount), and physical dimensions. The only difference is the approval agency certification (cULus for both). Verify that your application's certification requirements are met.

Q: What is the difference between 0298175.ZXEH and the other two parts?

A: 0298175.ZXEH is electrically and mechanically identical to 0298175.ZXA and 0298175.UXT. The only difference is the approval agency: 0298175.ZXEH carries UL approval, while the other two carry cULus approval. All other specifications, including current rating, voltage, response time, dimensions, and resistance, are identical.

Q: Are these fuses suitable for high-temperature automotive environments?

A: Yes. All three parts are rated for operation across -40°C to 125°C, which covers standard automotive temperature ranges.

Q: What does "Auto Link" package mean?

A: Auto Link is the mechanical form factor and mounting configuration for these fuses. It specifies the bolt-mount connection type used in automotive electrical systems. All three substitute parts use the identical Auto Link package.

Q: Can I mix these part numbers in the same circuit or system?

A: Yes. Since all three parts are electrically and mechanically equivalent with identical specifications, they can be used interchangeably within the same system. However, verify that your application's specific certification requirements are satisfied by the approval agency listed for each part.

Q: What is the significance of the melting I²t value of 168000?

A: The melting I²t value defines the thermal energy required to melt the fuse element. This value is identical across all three parts, ensuring identical thermal response characteristics and protection performance in the circuit.