Littelfuse 025707.5L Automotive Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 025707.5L is a 7.5 A automotive blade fuse rated for 32 V DC operation, designed for use in automotive electrical systems requiring holder-mounted protection. This component features an ATO/ATC blade configuration and is classified as obsolete. Due to its obsolete status, identifying active equivalent parts is essential for system maintenance, repair, and new design implementations where this specification remains applicable.

Substiute Parts

025707.5L

Littelfuse Inc.In Stock: 1055025707.5L Datasheet

Current PartRFQ

028707.5PXCN

Littelfuse Inc.In Stock: 48343028707.5PXCN Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 025707.5L is determined by strict equivalence across the following critical parameters:

• Current Rating: 7.5 A (exact match required)
• Voltage Rating: 32 V DC (exact match required)
• Package / Case: Blade, ATO/ATC (exact match required)
• Fuse Type: Automotive (exact match required)
• Operating Temperature Range: -40°C ~ 105°C (exact match required)
• Melting I²t: 60 (exact match required)
• DC Cold Resistance: 0.01091 Ohms (exact match required)

The substitute part 028707.5PXCN meets all critical electrical and mechanical parameters, enabling direct functional replacement in applications currently using the 025707.5L.

Parameter Comparison

Engineering Selection Recommendations

The 028707.5PXCN is the direct functional equivalent for the obsolete 025707.5L. Both parts are manufactured by Littelfuse Inc. and share identical electrical and mechanical specifications. The substitute part carries active product status with broader regulatory approvals (CSA and UL certifications) compared to the original part's cULus approval. Both components maintain ROHS3 compliance and operate within the same temperature range. The 028707.5PXCN is available in bulk packaging with significantly higher inventory levels, supporting both replacement and new design applications.

Frequently Asked Questions (FAQ)

Q: Can the 028707.5PXCN directly replace the 025707.5L in existing applications?

A: Yes. Both parts share identical current rating (7.5 A), voltage rating (32 V DC), package configuration (Blade, ATO/ATC), melting I²t (60), and DC cold resistance (0.01091 Ohms). The substitute part is mechanically and electrically compatible with all systems designed for the original part.

Q: What is the difference between the two part numbers?

A: The primary difference is product status. The 025707.5L is obsolete, while the 028707.5PXCN is active. The substitute part also features expanded regulatory approvals (CSA and UL) and is available in bulk packaging with higher inventory availability.

Q: Are there any dimensional differences between these parts?

A: Dimensional specifications are nominally equivalent. The 025707.5L measures 0.750" L x 0.200" W x 0.480" H (19.05mm x 5.08mm x 12.19mm), while the 028707.5PXCN measures 0.752" L x 0.201" W x 0.484" H (19.10mm x 5.10mm x 12.30mm). These minor variations fall within standard manufacturing tolerances and do not affect holder compatibility or functional performance.

Q: Do both parts require the same holder configuration?

A: Yes. Both the 025707.5L and 028707.5PXCN require a holder for mounting and are configured as ATO/ATC blade fuses. No holder modifications are necessary when substituting between these parts.

Q: What regulatory certifications apply to the substitute part?

A: The 028707.5PXCN carries CSA and UL approvals. Both parts maintain ROHS3 compliance and operate within the -40°C to 105°C temperature range, meeting automotive environmental requirements.