Littelfuse 02153.15MXF5P Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 02153.15MXF5P is a 3.15 A, 250 V AC ceramic cartridge fuse with slow-blow response characteristics, designed for through-hole radial mounting. This fuse is classified as Active product status and carries multiple international approvals including UL, CE, CSA, and VDE certification. Alternative equivalent parts become necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits selection from the qualified substitute pool while maintaining identical electrical and mechanical performance.

Substiute Parts

02153.15MXF5P

Littelfuse Inc.In Stock: 77102153.15MXF5P Datasheet

Current PartRFQ

02153.15MXF11P

Littelfuse Inc.In Stock: 624802153.15MXF11P Datasheet

Parametric EquivalentRFQ

02153.15MXF163SPP

Littelfuse Inc.In Stock: 285902153.15MXF163SPP Datasheet

Parametric EquivalentRFQ

02153.15MXF34P

Littelfuse Inc.In Stock: 194002153.15MXF34P Datasheet

Parametric EquivalentRFQ

02153.15MXF51P

Littelfuse Inc.In Stock: 243902153.15MXF51P Datasheet

Parametric EquivalentRFQ

0001.2509

SCHURTER Inc.In Stock: 388110001.2509 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 02153.15MXF5P is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Current Rating: 3.15 A
• Voltage Rating (AC): 250 V
• Fuse Type: Cartridge, Ceramic
• Response Time: Slow Blow
• Mounting Type: Through Hole
• Package / Case: Radial Bend Cylinder
• Size / Dimension: 0.205" Dia x 0.787" L (5.20mm x 20.00mm)
• Breaking Capacity @ Rated Voltage: 1.5 kA
• Melting I²t: 43.255
• Operating Temperature Range: -55°C ~ 125°C
• DC Cold Resistance: 0.0283 Ohms

Parametric Equivalents (Littelfuse Series 215): The parts 02153.15MXF11P, 02153.15MXF34P, and 02153.15MXF51P are parametric equivalents manufactured by Littelfuse within the Series 215 family. These parts satisfy all mandatory matching parameters and are direct functional replacements.

Parametric Equivalent (Littelfuse Series 215SP): The part 02153.15MXF163SPP belongs to the Series 215SP variant and meets all mandatory matching parameters, with the exception of series designation and minor approval agency differences.

Direct Manufacturer Equivalent (SCHURTER): The part 0001.2509 manufactured by SCHURTER is a direct equivalent from an alternative manufacturer. This part matches all critical electrical parameters and physical dimensions. The mounting configuration differs (requires holder versus radial bend), and DC voltage rating extends to 300 V. Melting I²t is 33.7 versus 43.255 for Littelfuse parts.

Parameter Comparison

Engineering Selection Recommendations

Littelfuse Series 215 Parametric Equivalents (02153.15MXF11P, 02153.15MXF34P, 02153.15MXF51P):

These three parts are direct parametric equivalents to the 02153.15MXF5P. All maintain identical electrical specifications, physical dimensions, and thermal characteristics. Selection among these parts may be based on inventory availability and approval agency requirements:

• 02153.15MXF11P carries approvals: CCC, CE, CSA, KC, PSE, SEMKO, UL, VDE
• 02153.15MXF34P carries approvals: CCC, CE, CSA, KC, PSE, SEMKO, UL, VDE
• 02153.15MXF51P carries approvals: BSI, CCC, CE, CSA, KC, PSE, SEMKO, UR, VDE

All three maintain Active product status and ROHS3 compliance.

Littelfuse Series 215SP Parametric Equivalent (02153.15MXF163SPP):

This part meets all mandatory electrical and mechanical parameters. Approval agencies differ slightly (CE, CQC, CSA, KC, PSE, UR, VDE versus the primary part's CCC, CE, CSA, KC, PSE, SEMKO, UL, VDE). Series designation is 215SP rather than 215. Active product status and ROHS3 compliance are maintained.

SCHURTER Direct Equivalent (0001.2509):

This part is manufactured by SCHURTER and matches all critical electrical parameters and physical dimensions. Key differences include:

• Mounting configuration: Requires holder versus radial bend through-hole
• DC voltage rating: 300 V versus unspecified for Littelfuse parts
• Melting I²t: 33.7 versus 43.255
• Approval agencies: CCC, cURus, KC, PSE/JET, VDE

This part is suitable for applications where the holder-based mounting configuration is acceptable and where the extended DC voltage rating provides additional design margin.

Frequently Asked Questions (FAQ)

Q: Can 02153.15MXF11P, 02153.15MXF34P, and 02153.15MXF51P be used interchangeably with 02153.15MXF5P?

A: Yes. These three Littelfuse Series 215 parts are parametric equivalents that match all critical electrical specifications (3.15 A, 250 V AC, slow-blow response), physical dimensions (5.20mm x 20.00mm radial bend cylinder), and thermal characteristics (-55°C to 125°C). They are direct functional replacements.

Q: What is the difference between the Littelfuse Series 215 and Series 215SP variants?

A: The 02153.15MXF163SPP (Series 215SP) maintains identical electrical and mechanical parameters to the Series 215 parts. The series designation and approval agency set differ slightly. Both are Active products with ROHS3 compliance.

Q: Can the SCHURTER 0001.2509 replace the Littelfuse 02153.15MXF5P?

A: The SCHURTER 0001.2509 is electrically equivalent for AC applications at 3.15 A and 250 V. However, the mounting configuration differs: the SCHURTER part requires a separate holder, whereas the Littelfuse part features radial bend through-hole mounting. The SCHURTER part also provides 300 V DC rating and has a lower melting I²t value (33.7 versus 43.255). Substitution is valid only if the holder-based mounting configuration is compatible with the circuit design.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts (02153.15MXF11P, 02153.15MXF34P, 02153.15MXF51P, 02153.15MXF163SPP, and 0001.2509) are ROHS3 compliant.

Q: What approval agencies are common across all substitute parts?

A: CE, CSA, KC, and PSE certifications are present across all substitute parts. The complete approval agency set varies by part number. Consult the specific part datasheet if certification to a particular agency is a design requirement.

Q: Does the melting I²t value affect substitution eligibility?

A: The Littelfuse parts (02153.15MXF5P, 02153.15MXF11P, 02153.15MXF34P, 02153.15MXF51P, 02153.15MXF163SPP) all share an identical melting I²t of 43.255. The SCHURTER 0001.2509 has a lower melting I²t of 33.7, which indicates faster thermal response. This difference may affect circuit protection characteristics and should be evaluated against application requirements.

Q: What is the DC cold resistance specification used for?

A: DC cold resistance (0.0283 Ohms for Littelfuse parts) characterizes the fuse element's resistance at room temperature under DC conditions. This parameter is relevant for low-voltage DC circuit applications where voltage drop across the fuse must be minimized. The SCHURTER part does not specify this parameter.