Littelfuse 0215001.MXEP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0215001.MXEP is a 1 A, 250 V AC ceramic cartridge fuse with slow-blow response characteristics, designed for through-hole mounting in 5mm x 20mm form factor. This component is classified as Active product status and is widely used in circuit protection applications requiring reliable overcurrent protection with controlled response time. Substitute parts are necessary to address supply chain variations, regional availability, or specific compliance requirements across different manufacturing regions and end-use applications.

Key Parameters

Parameter	Value
Current Rating	1 A
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Ceramic
Response Time	Slow Blow
Package / Case	5mm x 20mm (Axial)
Mounting Type	Through Hole
Breaking Capacity @ Rated Voltage	1.5 kA
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 0215001.MXEP is determined by strict equivalence across the following critical parameters:

Current Rating: Must be 1 A
Voltage Rating (AC): Must be 250 V minimum
Fuse Type: Must be Cartridge, Ceramic
Response Time: Must be Slow Blow
Package / Case: Must be 5mm x 20mm (Axial)
Mounting Type: Must be Through Hole
Breaking Capacity: Must be 1.5 kA at rated voltage
Operating Temperature Range: Must support -55°C ~ 125°C
RoHS Compliance: Must be ROHS3 Compliant

All three substitute parts meet these criteria and are therefore direct functional equivalents suitable for replacement in applications where the 0215001.MXEP is specified.

Parameter Comparison

Parameter	0215001.MXEP (Littelfuse)	0215001.MXESPP (Littelfuse)	0001.2504.PT (SCHURTER)	5HTP 1-R (Bel Fuse)
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	SCHURTER Inc.	Bel Fuse Inc.
Current Rating (Amps)	1 A	1 A	1 A	1 A
Voltage Rating - AC	250 V	250 V	250 V	250 V
Voltage Rating - DC	Not specified	Not specified	300 V	Not specified
Fuse Type	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic	Cartridge, Ceramic
Response Time	Slow Blow	Slow Blow	Slow Blow	Slow Blow
Package / Case	5mm x 20mm (Axial)	5mm x 20mm (Axial)	5mm x 20mm (Axial)	5mm x 20mm (Axial)
Breaking Capacity @ Rated Voltage	1.5 kA	1.5 kA	1.5 kA	1.5 kA
Mounting Type	Through Hole	Through Hole	Through Hole	Through Hole
Operating Temperature Range	-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
Product Status	Active	Active	Active	Active
Series	215	215SP	SPT 5x20	5HTP
DC Cold Resistance (Ohms)	0.1515	0.1515	Not specified	0.2
Melting I²t	1.52	1.52	1.1	1.7

Engineering Selection Recommendations

All substitute parts are Active product status and ROHS3 compliant, meeting baseline environmental and regulatory requirements.

Littelfuse 0215001.MXESPP: Identical manufacturer as the primary part with matching electrical characteristics (1.52 melting I²t, 0.1515 Ω DC cold resistance). Approval agencies include CE, CQC, CSA, KC, PSE, UR, and VDE. Physical dimensions are 5.20mm diameter x 20.00mm length. This part is preferred for applications requiring continuity within the Littelfuse 215 series ecosystem.

SCHURTER 0001.2504.PT: Offers extended DC voltage rating of 300 V, providing additional margin in applications with DC component exposure. Approval is cURus certified. Melting I²t is 1.1 and physical dimensions are 5.40mm diameter x 22.50mm length. This part is suitable for applications requiring higher DC voltage tolerance.

Bel Fuse 5HTP 1-R: Provides the highest melting I²t value at 1.7, with comprehensive approval agency coverage including CCC, CE, CSA, cULus, IMQ, PSE, SEMKO, and VDE. DC cold resistance is 0.2 Ω. Physical dimensions are 5.50mm diameter x 21.00mm length. This part is appropriate for applications requiring broad international certification support.

Frequently Asked Questions (FAQ)

Q: Can I use 0215001.MXESPP as a direct replacement for 0215001.MXEP?

A: Yes. Both parts are manufactured by Littelfuse, share identical current rating (1 A), voltage rating (250 V AC), response time (Slow Blow), package dimensions (5mm x 20mm), and melting I²t (1.52). They are functionally equivalent.

Q: What is the difference between the SCHURTER 0001.2504.PT and the Littelfuse options?

A: The SCHURTER part specifies a 300 V DC voltage rating, whereas the Littelfuse parts do not specify DC voltage. The SCHURTER part also has a lower melting I²t value (1.1 versus 1.52). Physical dimensions vary slightly. Selection depends on whether DC voltage margin is required in the application.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All four parts, including the primary 0215001.MXEP and all three substitutes, are ROHS3 compliant.

Q: Do physical dimension variations affect interchangeability?

A: Physical dimensions vary slightly across manufacturers (diameter ranges 5.20mm to 5.50mm, length ranges 20.00mm to 22.50mm). All parts conform to the 5mm x 20mm (Axial) package specification and are designed for through-hole mounting. Verify PCB footprint tolerance to confirm mechanical fit in your specific application.

Q: Which substitute has the broadest international certification?

A: The Bel Fuse 5HTP 1-R carries the most comprehensive approval agency coverage, including CCC, CE, CSA, cULus, IMQ, PSE, SEMKO, and VDE, making it suitable for global applications requiring multi-region compliance.

Q: What does "Slow Blow" response time mean?

A: Slow Blow fuses tolerate temporary inrush currents and transient overcurrents without nuisance operation, providing protection only during sustained overcurrent conditions. All substitute parts share this characteristic with the primary part.

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