Littelfuse 026302.5M Equivalent & Substitute Parts

Part Overview

The Littelfuse 026302.5M is a 2.5 A, 250 V AC/DC board mount axial fuse designed for through-hole applications. This component belongs to the PICO® II 263 series and is classified as obsolete. Due to its obsolete status, identifying active equivalent parts is essential for ongoing design support, production continuity, and component sourcing. The substitute part maintains identical electrical and mechanical specifications while offering improved availability and compliance status.

Substiute Parts

026302.5M

Littelfuse Inc.In Stock: 1144026302.5M Datasheet

Current PartRFQ

026302.5MXL

Littelfuse Inc.In Stock: 3746026302.5MXL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Littelfuse 026302.5MXL is a direct functional equivalent to the 026302.5M. Substitution is valid based on the following matching parameters:

• Current Rating: 2.5 A (identical)
• Voltage Rating (AC): 250 V (identical)
• Fuse Type: Board Mount (Cartridge Style Excluded) (identical)
• Mounting Type: Through Hole (identical)
• Package / Case: Axial (identical)
• Response Time: Fast Blow (identical)
• Breaking Capacity @ Rated Voltage: 50 A (identical)
• Size / Dimension: 0.155" Dia x 0.280" L (3.94mm x 7.11mm) (identical)
• DC Cold Resistance: 0.034 Ohms (identical)
• Operating Temperature Range: -55°C ~ 125°C (identical)
• Approval Agencies: CSA, PSE, UR (identical)

The primary distinction between these parts is product status and compliance certification. The 026302.5MXL is actively manufactured and carries ROHS3 compliance, whereas the 026302.5M is obsolete and RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

The 026302.5MXL is the appropriate selection for new designs and production continuity. This part is actively manufactured by Littelfuse Inc. and maintains full compliance with ROHS3 regulations, whereas the 026302.5M is obsolete and non-compliant. All electrical and mechanical parameters are identical, ensuring direct functional compatibility in existing circuit designs. The 026302.5MXL is available in bulk packaging with significantly higher inventory levels (3,727 pcs vs. 1,123 pcs), supporting reliable supply chain management.

Frequently Asked Questions (FAQ)

Q: Can the 026302.5MXL be used as a direct replacement for the 026302.5M in existing designs?

A: Yes. Both parts share identical electrical ratings (2.5 A, 250 V AC/DC), response characteristics (Fast Blow), mechanical dimensions (0.155" Dia x 0.280" L), and thermal specifications (-55°C ~ 125°C). They are functionally interchangeable in all circuit applications.

Q: What is the primary difference between these two parts?

A: The 026302.5M is obsolete and RoHS non-compliant, while the 026302.5MXL is actively produced and ROHS3 compliant. All technical specifications are identical.

Q: Are the physical dimensions identical?

A: Yes. Both parts have the same axial package dimensions of 0.155" Dia x 0.280" L (3.94mm x 7.11mm) and identical DC cold resistance of 0.034 Ohms.

Q: Do both parts carry the same regulatory approvals?

A: Yes. Both parts are certified by CSA, PSE, and UR with identical breaking capacity of 50 A at rated voltage.

Q: Which part should be specified for new production?

A: The 026302.5MXL should be specified for all new designs and ongoing production due to its active status, ROHS3 compliance, and superior availability.