Littelfuse 0675002.MXEP Ceramic Axial Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0675002.MXEP is a 2A 250VAC ceramic cartridge fuse with axial through-hole mounting. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new designs. The fuse is rated for slow-blow response with a 50A breaking capacity at rated voltage and operates across industrial temperature ranges with CSA and UL approval.

Substiute Parts

0675002.MXEP

Littelfuse Inc.In Stock: 9860675002.MXEP Datasheet

Current PartRFQ

0875002.MXEP

Littelfuse Inc.In Stock: 23330875002.MXEP Datasheet

DirectRFQ

0675002.MXE

LittelfuseIn Stock: 9250675002.MXE Datasheet

Parametric EquivalentRFQ

0677002.MXE

Littelfuse Inc.In Stock: 11130677002.MXE Datasheet

Parametric EquivalentRFQ

8020.0517.PT

SCHURTER Inc.In Stock: 33278020.0517.PT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 0675002.MXEP is determined by strict equivalence across the following critical parameters: current rating (2A), voltage rating (250VAC), fuse type (ceramic cartridge), response time (slow blow), and mounting configuration (through-hole axial). All substitute parts maintain these core electrical specifications. Physical dimensions and breaking capacity are secondary considerations that may vary within acceptable tolerances for the application category.

The substitute parts are grouped into two categories:

Direct Manufacturer Equivalent (Littelfuse): The 0875002.MXEP represents an active production alternative from the same manufacturer with identical electrical ratings but improved specifications (lower DC cold resistance, extended operating temperature range, and active product status).

Parametric Equivalents: The 0675002.MXE, 0677002.MXE, and 8020.0517.PT maintain the core electrical parameters (2A, 250VAC, ceramic, slow blow) but originate from different product series or manufacturers. These parts are suitable where the primary requirement is electrical equivalence rather than form-factor precision.

Parameter Comparison

Engineering Selection Recommendations

For direct replacement with active product status: The 0875002.MXEP is the primary substitute. It maintains identical electrical ratings (2A, 250VAC, slow blow, ceramic cartridge) and active production status. The dimensional difference (0.142" Dia x 0.394" L versus 0.154" Dia x 0.433" L) requires mechanical verification for PCB footprint compatibility. This part offers superior specifications including lower DC cold resistance (0.02887 Ohms versus 0.0405 Ohms) and extended operating temperature range (-55°C to 125°C).

For form-factor preservation: The 0675002.MXE and 0677002.MXE maintain the original 0.154" Dia x 0.433" L dimensions. The 0675002.MXE is electrically identical to the main part but carries RoHS non-compliant status. The 0677002.MXE is ROHS3 compliant with VDE approval but exhibits higher melting I²t (20.8 versus 6.7) and reduced breaking capacity (35A versus 50A).

For cross-manufacturer equivalence: The SCHURTER 8020.0517.PT maintains dimensional compatibility and ROHS3 compliance with multi-agency approval (CQC, cURus, VDE). Breaking capacity is 35A with melting I²t of 32, representing the highest thermal mass among substitutes. Operating temperature range is -20°C to 70°C.

Compliance consideration: All active substitutes are ROHS3 compliant except 0675002.MXE. For new designs or systems requiring RoHS compliance, select from 0875002.MXEP, 0677002.MXE, or 8020.0517.PT.

Frequently Asked Questions (FAQ)

Q: Can the 0875002.MXEP be used as a direct drop-in replacement for the 0675002.MXEP?

A: Electrical substitution is valid. The 0875002.MXEP maintains identical current rating (2A), voltage rating (250VAC), fuse type (ceramic cartridge), and response time (slow blow). However, the physical dimensions differ: 0.142" Dia x 0.394" L versus 0.154" Dia x 0.433" L. Mechanical compatibility with the existing PCB footprint and fuse holder must be verified before implementation.

Q: What is the difference between the 0675002.MXE and 0675002.MXEP?

A: Both parts are from the Littelfuse 675 series with identical electrical specifications and dimensions. The primary difference is RoHS compliance status: 0675002.MXEP is ROHS3 compliant, while 0675002.MXE is RoHS non-compliant. For new designs or regulated applications, the 0675002.MXEP is the appropriate choice.

Q: Why does the 0677002.MXE have a higher melting I²t value (20.8) compared to the main part (6.7)?

A: The melting I²t parameter indicates thermal mass and response characteristics. The 0677002.MXE exhibits slower thermal response, which may affect nuisance trip behavior in circuits with inrush current. Verify that the application's inrush current profile is compatible with this characteristic before substitution.

Q: Is the SCHURTER 8020.0517.PT suitable for all applications requiring the 0675002.MXEP?

A: The 8020.0517.PT maintains electrical equivalence (2A, 250VAC, ceramic, slow blow) and dimensional compatibility. However, the melting I²t is significantly higher (32 versus 6.7), indicating substantially different thermal response. The operating temperature range is also narrower (-20°C to 70°C). Substitution is valid only where these thermal and temperature characteristics are acceptable for the application.

Q: What certifications should I prioritize when selecting a substitute?

A: The main part carries CSA and UL approval. Active substitutes offer expanded certifications: 0875002.MXEP (cULus), 0677002.MXE (CSA, UL, VDE), and 8020.0517.PT (CQC, cURus, VDE). Select based on the regulatory requirements of your target market and application.

Q: Can I use the 0675002.MXE in a new design?

A: The 0675002.MXE is electrically and dimensionally equivalent to the main part. However, it is RoHS non-compliant. For new designs subject to RoHS regulations (EU, China, or other jurisdictions), use ROHS3-compliant alternatives: 0875002.MXEP, 0677002.MXE, or 8020.0517.PT.