Littelfuse 0257002.PXPV Automotive Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0257002.PXPV is a 2A 32VDC automotive blade fuse (ATO/ATC form factor) designed for circuit protection in automotive applications. This part is classified as Obsolete, making identification of active equivalent and substitute parts essential for ongoing system maintenance and new designs. The ATO/ATC blade fuse standard ensures mechanical and electrical compatibility across multiple manufacturers, allowing for direct substitution based on electrical and physical parameters.

Substiute Parts

0257002.PXPV

Littelfuse Inc.In Stock: 7590257002.PXPV Datasheet

Current PartRFQ

0287002.PXCN

Littelfuse Inc.In Stock: 156120287002.PXCN Datasheet

DirectRFQ

0ATO002.V

Littelfuse Inc.In Stock: 18770ATO002.V Datasheet

Parametric EquivalentRFQ

0ATO002.VP

Littelfuse Inc.In Stock: 9840ATO002.VP Datasheet

Parametric EquivalentRFQ

BK/ATC-2

Eaton - Bussmann Electrical DivisionIn Stock: 1534BK/ATC-2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Littelfuse 0257002.PXPV is determined by strict equivalence in the following parameters:

• Current Rating: 2 A (exact match required)
• Voltage Rating - DC: 32 V (exact match required)
• Response Time: Fast Blow (exact match required)
• Package / Case: Blade, ATO/ATC (exact match required)
• Mounting Type: Requires Holder (exact match required)

All substitute parts listed maintain these core electrical and mechanical specifications. Dimensional tolerances within the ATO/ATC standard allow minor variations in length, width, and height while preserving holder compatibility. Substitute parts are grouped into two categories: Direct Manufacturer Equivalents (same series or active production variants) and Parametric Equivalents (different manufacturers or packaging configurations meeting identical electrical specifications).

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: Littelfuse 0287002.PXCN

The 0287002.PXCN is the preferred substitute for the obsolete 0257002.PXPV. Both parts are manufactured by Littelfuse and maintain identical electrical specifications (2A, 32VDC, Fast Blow, ATO/ATC). The 0287002.PXCN carries Active product status with UL approval and significantly higher inventory availability (15,550 units). The ATOF® series designation indicates an enhanced formulation within the Littelfuse automotive fuse portfolio. Operating temperature range (-40°C ~ 105°C) is specified for the 0287002.PXCN, providing documented thermal performance.

Secondary Recommendations: Littelfuse 0ATO002.V and 0ATO002.VP

Both parts maintain the original ATO® series designation and identical electrical parameters. The 0ATO002.V is supplied in bulk packaging, while 0ATO002.VP is supplied as a 5-pack card configuration. Both carry Active status with UL approval. The 0ATO002.VP includes additional CSA and SAE certifications. These parts are suitable where packaging configuration aligns with procurement requirements.

Alternative Recommendation: Eaton BK/ATC-2

The Eaton BK/ATC-2 provides cross-manufacturer equivalence with identical electrical specifications and 1kA breaking capacity. This part is manufactured by Eaton - Bussmann Electrical Division under the ATC® series designation. UL approval and ROHS3 compliance are documented. Dimensional tolerances (0.760" L x 0.207" W x 0.492" H) remain within ATO/ATC standard compatibility ranges for holder fitment.

Frequently Asked Questions (FAQ)

Q: Can the 0287002.PXCN directly replace the obsolete 0257002.PXPV?

A: Yes. Both parts share identical electrical specifications (2A, 32VDC, Fast Blow, ATO/ATC blade form factor). The 0287002.PXCN is the direct Littelfuse equivalent with Active product status and higher inventory availability.

Q: What is the difference between the Littelfuse ATOF® series (0287002.PXCN) and the ATO® series (0257002.PXPV)?

A: Both series maintain identical electrical and mechanical parameters for this 2A 32VDC application. The ATOF® designation indicates a product line variant within Littelfuse's automotive fuse portfolio. Electrical performance and holder compatibility are equivalent.

Q: Are the 0ATO002.V and 0ATO002.VP interchangeable?

A: Yes, electrically and mechanically. The difference is packaging: 0ATO002.V is supplied in bulk, while 0ATO002.VP is supplied as a 5-pack card. Both maintain identical electrical specifications and physical dimensions.

Q: Can I use the Eaton BK/ATC-2 in place of the Littelfuse parts?

A: Yes. The BK/ATC-2 meets all electrical and mechanical requirements (2A, 32VDC, Fast Blow, ATO/ATC form factor). Dimensional variations (0.760" L x 0.207" W x 0.492" H versus 0.750" L x 0.200" W x 0.480" H) remain within ATO/ATC standard tolerances for holder compatibility.

Q: What certifications should I verify for my application?

A: All substitute parts carry UL approval. The 0ATO002.VP includes additional CSA and SAE certifications. Verify that your application requirements align with the specified approval agencies. All parts are ROHS3 compliant.

Q: Why do some parts list breaking capacity as "-" instead of "1kA"?

A: The 0ATO002.V and 0ATO002.VP do not specify breaking capacity in the provided data. The 0287002.PXCN and BK/ATC-2 both specify 1kA breaking capacity at rated voltage, matching the original part specification.

Q: Is there a difference in DC cold resistance between these parts?

A: The 0257002.PXPV and 0287002.PXCN both specify 0.0535 Ohms DC cold resistance. This parameter is not provided for the other substitute parts in the available data.