Littelfuse 0253003.MXL Equivalent & Substitute Parts

Part Overview

The Littelfuse 0253003.MXL is a 3 A, 125 V AC/DC board mount axial fuse from the PICO® II 253 series, designed for through-hole PCB applications. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The fuse provides fast-blow response characteristics with a breaking capacity of 50 A AC and 300 A DC, suitable for general-purpose circuit protection in low-voltage applications.

Substiute Parts

0253003.MXL

Littelfuse Inc.In Stock: 7780253003.MXL Datasheet

Current PartRFQ

0253003.M

Littelfuse Inc.In Stock: 21020253003.M Datasheet

Parametric EquivalentRFQ

0253003.V

Littelfuse Inc.In Stock: 13220253003.V Datasheet

Parametric EquivalentRFQ

7010.6400.13

SCHURTER Inc.In Stock: 7167010.6400.13 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 0253003.MXL are grouped based on strict electrical and mechanical parameter matching:

Parametric Equivalents (Littelfuse): Parts 0253003.M and 0253003.V are parametric equivalents manufactured by Littelfuse Inc. These parts maintain identical electrical specifications (3 A, 125 V AC/DC, fast-blow response) and mechanical dimensions (0.103" Dia x 0.280" L). The primary distinction is packaging format (bulk vs. tape) and product status (active vs. obsolete). Both parts are from the same PICO® II 253 series and carry identical regulatory approvals.

Direct Manufacturer Substitute (SCHURTER): Part 7010.6400.13 from SCHURTER Inc. is a direct substitute meeting the core electrical requirements (3 A, 125 V AC/DC, fast-blow response) and mounting type (through-hole). However, this part differs in package case format (cartridge, non-standard axial vs. standard axial), physical dimensions (0.093" Dia x 0.315" L), melting I²t rating (2.4 vs. 1.19), and operating temperature range (-55°C ~ 85°C vs. -55°C ~ 125°C).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): Select either 0253003.M or 0253003.V. Both parts are active Littelfuse products with identical electrical and mechanical specifications to the obsolete 0253003.MXL. These parts carry the same regulatory approvals (CCC, CSA, PSE, QPL, TUV, UR) and maintain full compatibility with existing PCB designs without layout modifications.

For Cross-Manufacturer Substitution: The SCHURTER 7010.6400.13 is electrically compatible but requires design verification due to dimensional differences and reduced operating temperature range. The larger melting I²t value (2.4 vs. 1.19) indicates different thermal response characteristics. PCB footprint and thermal management must be re-evaluated before implementation.

Compliance Considerations: All substitute parts maintain ROHS3 compliance and EAR99 export classification. Littelfuse equivalents (0253003.M and 0253003.V) provide the highest assurance of form-fit-function compatibility.

Frequently Asked Questions (FAQ)

Q: Can 0253003.M or 0253003.V be used as direct replacements for 0253003.MXL?

A: Yes. Both parts are parametric equivalents with identical current rating (3 A), voltage rating (125 V AC/DC), response time (fast-blow), and physical dimensions (0.103" Dia x 0.280" L). The primary difference is product status (active vs. obsolete) and packaging format. No PCB modifications are required.

Q: What are the key differences between Littelfuse and SCHURTER substitutes?

A: Littelfuse parts (0253003.M, 0253003.V) are direct equivalents. The SCHURTER 7010.6400.13 differs in package case format (cartridge vs. standard axial), physical dimensions (0.093" Dia x 0.315" L), melting I²t (2.4 vs. 1.19), and maximum operating temperature (85°C vs. 125°C). These differences may affect PCB layout and thermal performance.

Q: Is the SCHURTER 7010.6400.13 suitable for high-temperature applications?

A: The SCHURTER part has a maximum operating temperature of 85°C, compared to 125°C for the Littelfuse equivalents. Applications requiring operation above 85°C should use Littelfuse 0253003.M or 0253003.V.

Q: Do all substitute parts have the same breaking capacity?

A: No. Littelfuse parts specify 50 A AC and 300 A DC breaking capacity. The SCHURTER part specifies 300 A breaking capacity without AC/DC distinction. Verify breaking capacity requirements for your specific application.

Q: Are there packaging differences between 0253003.M and 0253003.V?

A: Both parts have identical electrical and mechanical specifications. The difference is packaging format (bulk vs. tape). Select based on procurement and assembly requirements.