Littelfuse 0275007.M Equivalent & Substitute Parts

Part Overview

The Littelfuse 0275007.M is a 7 A, 125 V AC/DC board mount axial fuse with fast blow response time, designed for through-hole mounting applications. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system support and new design implementations. The PICO® 275 series fuse requires replacement options that maintain electrical and mechanical compatibility while offering improved availability and compliance status.

Substiute Parts

0275007.M

Littelfuse Inc.In Stock: 12120275007.M Datasheet

Current PartRFQ

0251007.MXL

Littelfuse Inc.In Stock: 24460251007.MXL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0275007.M is determined by strict equivalence across the following critical parameters:

• Current Rating: Must be 7 A
• Voltage Rating: Must be 125 V AC and 125 V DC minimum
• Response Time: Must be Fast Blow
• Mounting Type: Must be Through Hole
• Fuse Type: Must be Board Mount (Cartridge Style Excluded)
• Package / Case: Must be Axial
• Operating Temperature Range: Must support -55°C ~ 125°C

The Littelfuse 0251007.MXL meets all substitution criteria as a direct equivalent from the PICO® II 251 series, offering enhanced compliance and improved market availability while maintaining identical electrical performance specifications.

Parameter Comparison

Engineering Selection Recommendations

The 0251007.MXL is the direct substitute for the obsolete 0275007.M. Selection of the substitute part is justified by:

• Identical electrical specifications across all critical parameters (current, voltage, response time)
• Active product status ensuring long-term availability and supply chain continuity
• Enhanced regulatory compliance: ROHS3 compliant versus RoHS non-compliant status of the original part
• Expanded approval certifications (CSA, cURus, TUV) providing broader market acceptance
• Equivalent mechanical compatibility with through-hole axial mounting requirements

The substitute part maintains full functional equivalence while addressing obsolescence and compliance requirements.

Frequently Asked Questions (FAQ)

Q: Can the 0251007.MXL be used as a direct replacement for the 0275007.M?

A: Yes. Both parts share identical current rating (7 A), voltage ratings (125 V AC/DC), response time (Fast Blow), mounting type (Through Hole), and operating temperature range (-55°C ~ 125°C). The substitute is electrically and mechanically compatible.

Q: What is the primary reason to switch from 0275007.M to 0251007.MXL?

A: The 0275007.M is obsolete. The 0251007.MXL is an active product from Littelfuse, ensuring availability, supply chain support, and compliance with current regulatory standards including ROHS3.

Q: Are there dimensional differences between these parts?

A: The 0275007.M has a diameter of 0.093" (2.36mm), while the 0251007.MXL has a diameter of 0.110" (2.80mm). Both maintain the same length of 0.280" (7.11mm). Verify board layout and mounting hole specifications before implementation.

Q: What certifications does the substitute part carry?

A: The 0251007.MXL holds CSA, cURus, and TUV approvals, compared to UL approval for the original part. These certifications support compliance in multiple regulatory jurisdictions.

Q: Is the substitute part RoHS compliant?

A: Yes. The 0251007.MXL is ROHS3 compliant, whereas the 0275007.M is RoHS non-compliant. This addresses environmental and regulatory requirements for new designs and manufacturing.