Littelfuse 0297002.WXT Automotive Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0297002.WXT is a 2A 32VDC automotive blade fuse designed for miniature applications requiring holder mounting. This component is classified as Active product status and is widely used in automotive electrical protection circuits. Substitute parts become necessary when the primary part number is unavailable, when alternative certifications are required for specific regional markets, or when inventory constraints necessitate equivalent alternatives that maintain identical electrical and mechanical performance characteristics.

Substiute Parts

0297002.WXT

Littelfuse Inc.In Stock: 34320297002.WXT Datasheet

Current PartRFQ

0297002.L

Littelfuse Inc.In Stock: 152640297002.L Datasheet

Parametric EquivalentRFQ

0297002.U

Littelfuse Inc.In Stock: 144530297002.U Datasheet

Parametric EquivalentRFQ

0297002.WXNV

LittelfuseIn Stock: 2724710297002.WXNV Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0297002.WXT is determined by strict equivalence across the following critical parameters:

• Current Rating: 2 A (exact match required)
• Voltage Rating (DC): 32 V (exact match required)
• Package / Case: Blade, Miniature (exact match required)
• Mounting Type: Requires Holder (exact match required)
• Breaking Capacity @ Rated Voltage: 1 kA (exact match required)
• Melting I²t: 2.8 (exact match required)
• Operating Temperature Range: -40°C ~ 125°C (exact match required)
• Physical Dimensions: 0.429" L x 0.150" W x 0.346" H (exact match required)

All substitute parts listed below meet these criteria. Variations in response time classification (Fast Blow vs. unspecified), approval agency certifications, and DC cold resistance values do not affect functional substitutability within the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

All four part numbers (0297002.WXT, 0297002.L, 0297002.U, and 0297002.WXNV) are functionally equivalent for automotive 2A 32VDC blade fuse applications. Selection between these alternatives should be based on the following criteria:

Certification Requirements: If UL certification is mandatory, select 0297002.L or 0297002.U. If SAE certification is required, select 0297002.U. If UR certification alone is sufficient, 0297002.WXT is suitable.

Inventory Availability: 0297002.WXNV offers the highest inventory level (272,387 pcs), followed by 0297002.L (15,220 pcs), 0297002.U (14,389 pcs), and 0297002.WXT (3,393 pcs).

Compliance Status: All parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 and HTSUS 8536.10.0040.

Frequently Asked Questions (FAQ)

Q: Can 0297002.L be used as a direct replacement for 0297002.WXT? A: Yes. Both parts share identical electrical ratings (2A, 32VDC), mechanical dimensions (0.429" L x 0.150" W x 0.346" H), breaking capacity (1 kA), and melting I²t (2.8). The primary difference is that 0297002.L includes UL and UR certifications, whereas 0297002.WXT carries only UR certification.

Q: What is the difference between 0297002.U and 0297002.WXT? A: Both parts are electrically and mechanically identical. 0297002.U includes SAE and UL certifications, while 0297002.WXT carries only UR certification. DC cold resistance values differ slightly (0.00556 Ohms vs. 55.6 Ohms), but this does not affect functional performance within the specified operating parameters.

Q: Is 0297002.WXNV compatible with existing fuse holders designed for 0297002.WXT? A: Yes. All four part numbers use the identical Blade, Miniature package and physical dimensions (10.90mm x 3.80mm x 8.80mm), ensuring mechanical compatibility with any holder designed for this form factor.

Q: Do response time differences affect substitutability? A: No. The main part (0297002.WXT) does not specify response time classification, while substitutes are classified as Fast Blow. This difference does not prevent functional substitution, as all parts meet the same melting I²t specification (2.8) and breaking capacity (1 kA).

Q: Which part should be selected for international automotive applications? A: For North American markets requiring SAE compliance, select 0297002.U. For markets requiring UL certification, select 0297002.L or 0297002.U. For European or other markets, 0297002.WXNV is suitable. All parts maintain identical electrical and mechanical performance.