Littelfuse 0215010.MXB940P Ceramic Radial Fuse – Equivalent & Substitute Parts

Part Overview

The Littelfuse 0215010.MXB940P is a 10 A, 250 V AC ceramic cartridge fuse with radial bend cylinder packaging designed for through-hole mounting applications. This slow-blow fuse provides circuit protection in AC/DC systems with a breaking capacity of 1.5 kA at rated voltage and operates across a temperature range of -55°C to 125°C. The part maintains active product status with full RoHS3 compliance and international safety certifications including UL, CSA, CE, VDE, BSI, KC, METI, and SEMKO approval.

Substitute parts are necessary when the original part number becomes unavailable due to inventory constraints, supply chain disruptions, or regional distribution limitations. Equivalent alternatives maintain identical electrical and mechanical specifications while offering comparable availability and compliance status.

Key Parameters

Parameter	Specification
Current Rating	10 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	334.665
DC Cold Resistance	0.0066 Ohms
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 0215010.MXB940P is determined by strict equivalence across the following critical parameters:

Parametric Equivalents (Littelfuse Series 215): Parts 0215010.MXF11P, 0215010.MXF20P, 0215010.MXF34P, and 0215010.MXF56P are direct parametric equivalents manufactured by Littelfuse Inc. These parts share identical electrical ratings (10 A, 250 V AC), fuse type (ceramic cartridge), response time (slow blow), mechanical dimensions (5.20mm x 20.00mm radial bend cylinder), breaking capacity (1.5 kA), melting I²t (334.665), DC cold resistance (0.0066 Ohms), and operating temperature range (-55°C ~ 125°C). All maintain active product status and ROHS3 compliance. Variations exist only in approval agency certifications, which do not affect functional interchangeability in applications requiring the specified electrical and mechanical parameters.

Direct Manufacturer Equivalent (SCHURTER 0001.2514): This part represents a cross-manufacturer substitute from SCHURTER Inc. It maintains identical current rating (10 A), AC voltage rating (250 V), ceramic cartridge fuse type, slow-blow response, and physical dimensions (5.20mm x 20.00mm). However, this part requires a separate fuse holder for installation, differs in DC voltage rating (150 V DC versus radial through-hole design), and carries different approval certifications (cURus, VDE). The melting I²t value (400) and breaking capacity specifications differ slightly, making this substitute suitable only for applications where holder-based mounting is acceptable and DC voltage requirements do not exceed 150 V.

Parameter Comparison

Parameter	0215010.MXB940P	0215010.MXF11P	0215010.MXF20P	0215010.MXF34P	0215010.MXF56P	0001.2514
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	SCHURTER Inc.
Current Rating (Amps)	10 A	10 A	10 A	10 A	10 A	10 A
Voltage Rating - AC	250 V	250 V	250 V	250 V	250 V	250 V
Fuse Type	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic
Response Time	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole	Through Hole	Requires Holder
Package / Case	Radial Bend Cylinder	Radial Bend Cylinder	Radial Bend Cylinder	Radial Bend Cylinder	Radial Bend Cylinder	5mm x 20mm
Size / Dimension	0.205" Dia x 0.787" L (5.20mm x 20.00mm)	0.205" Dia x 0.787" L (5.20mm x 20.00mm)	0.205" Dia x 0.787" L (5.20mm x 20.00mm)	0.205" Dia x 0.787" L (5.20mm x 20.00mm)	0.205" Dia x 0.787" L (5.20mm x 20.00mm)	0.205" Dia x 0.787" L (5.20mm x 20.00mm)
Breaking Capacity @ Rated Voltage	1.5 kA	1.5 kA	1.5 kA	1.5 kA	1.5 kA	1 kA AC, 1.5 kA DC
Melting I²t	334.665	334.665	334.665	334.665	334.665	400
DC Cold Resistance	0.0066 Ohms	0.0066 Ohms	0.0066 Ohms	0.0066 Ohms	0.0066 Ohms	Not specified
Operating Temperature Range	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active
Inventory (Pcs)	4890	6300	1998	1588	2268	22984

Engineering Selection Recommendations

Littelfuse Series 215 Parametric Equivalents (0215010.MXF11P, 0215010.MXF20P, 0215010.MXF34P, 0215010.MXF56P): These parts are direct functional replacements for the 0215010.MXB940P in all applications requiring 10 A, 250 V AC ceramic cartridge fuses with radial through-hole mounting. All four alternatives maintain identical electrical performance, mechanical compatibility, and operating specifications. Selection among these four parts should be based on regional certification requirements and inventory availability. The 0215010.MXF20P carries the broadest certification scope (BSI, CE, CSA, KC, METI, SEMKO, UL, VDE), matching the original part's approval agencies. The 0215010.MXF11P and 0215010.MXF34P provide equivalent functionality with slightly reduced certification coverage but maintain all major international standards. The 0215010.MXF56P includes CQC and PSE certifications suitable for Asian market applications.

SCHURTER 0001.2514 Cross-Manufacturer Substitute: This part is suitable only for applications where holder-based fuse mounting is acceptable and where DC voltage requirements do not exceed 150 V. The slightly elevated melting I²t value (400 versus 334.665) and reduced AC breaking capacity (1 kA AC versus 1.5 kA) require circuit design verification before implementation. This substitute offers significantly higher inventory availability (22,984 pieces) and may be appropriate for high-volume procurement scenarios where holder integration is feasible.

Frequently Asked Questions (FAQ)

Q: Can I use 0215010.MXF11P, 0215010.MXF20P, 0215010.MXF34P, or 0215010.MXF56P as direct replacements for 0215010.MXB940P?

A: Yes. All four Littelfuse Series 215 parts are direct parametric equivalents with identical electrical ratings (10 A, 250 V AC), fuse type (ceramic cartridge), response time (slow blow), mechanical dimensions (5.20mm x 20.00mm radial bend cylinder), and operating temperature range (-55°C ~ 125°C). They mount identically in through-hole applications without circuit board modification.

Q: What are the differences between the Littelfuse Series 215 equivalents?

A: The four Littelfuse equivalents differ only in approval agency certifications. The 0215010.MXB940P and 0215010.MXF20P carry identical certifications (BSI, CE, CSA, KC, METI, SEMKO, UL, VDE). The 0215010.MXF11P includes CE, CSA, KC, PSE, SEMKO, UL, VDE. The 0215010.MXF34P carries BSI, CE, CSA, KC, METI, SEMKO, UL, VDE. The 0215010.MXF56P includes BSI, CE, CQC, KC, PSE, SEMKO, UR, VDE. All maintain identical electrical and mechanical performance.

Q: Can I use the SCHURTER 0001.2514 as a substitute?

A: The SCHURTER 0001.2514 is functionally compatible only if your application accepts holder-based mounting instead of direct through-hole installation. This part requires a separate fuse holder and is not suitable for direct PCB mounting. Additionally, its AC breaking capacity is reduced to 1 kA (versus 1.5 kA), and DC voltage rating is limited to 150 V. Circuit design verification is required before substitution.

Q: Are all these parts RoHS3 compliant?

A: Yes. The 0215010.MXB940P and all listed substitutes (0215010.MXF11P, 0215010.MXF20P, 0215010.MXF34P, 0215010.MXF56P, and 0001.2514) are ROHS3 compliant and REACH unaffected.

Q: Which substitute has the best availability?

A: The SCHURTER 0001.2514 has the highest inventory level at 22,984 pieces. Among Littelfuse equivalents, the 0215010.MXF11P offers the best availability at 6,300 pieces, followed by 0215010.MXF56P at 2,268 pieces and 0215010.MXF20P at 1,998 pieces.

Q: Do all substitutes operate across the same temperature range?

A: Yes. All listed parts operate across the identical temperature range of -55°C to 125°C.

Q: What is the significance of the melting I²t value?

A: The melting I²t value (334.665 for Littelfuse parts, 400 for SCHURTER 0001.2514) indicates the thermal energy required to melt the fuse element. The Littelfuse equivalents share identical I²t values, ensuring identical thermal response characteristics. The SCHURTER part's higher I²t value means it requires slightly more thermal energy to operate, which may affect trip time in marginal overcurrent conditions.

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