Littelfuse 0215.500MXP Ceramic Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0215.500MXP is a 500 mA, 250 V AC ceramic cartridge fuse in 5mm x 20mm form factor with slow-blow response characteristics. This fuse is designed for circuit protection in applications requiring moderate current interruption with thermal time delay. The part maintains active product status with full compliance to international safety standards including CE, CSA, SEMKO, UL, and VDE certifications. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical dimensions, and functional performance parameters that ensure direct interchangeability within the specified application envelope.

Key Parameters

Parameter	Value
Current Rating	500 mA
Voltage Rating (AC)	250 V
Fuse Type	Cartridge, Ceramic
Package / Case	5mm x 20mm
Response Time	Slow Blow
Breaking Capacity @ Rated Voltage	1.5 kA
Operating Temperature Range	-55°C to 125°C
Mounting Type	Requires Holder
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for the 0215.500MXP is determined by the following critical parameters: current rating (500 mA), AC voltage rating (250 V), fuse type (ceramic cartridge), physical dimensions (5mm x 20mm), response characteristic (slow blow), and breaking capacity (1.5 kA). Parts meeting all these specifications are classified as parametric equivalents. The 0001.2502 from SCHURTER is classified as a direct manufacturer alternative despite a higher current rating (630 mA) because it maintains the same voltage, package, and response characteristics, making it suitable for applications where the higher current rating does not create design conflicts. The 5HT 500-R from Bel Fuse is designated as manufacturer-recommended due to matching all primary electrical and mechanical parameters with minor dimensional tolerance variations (5.10mm vs 5.20mm diameter).

Parameter Comparison

Parameter	0215.500MXP (Main)	0215.500TXP	0285.500HXP	0001.2502	5HT 500-R	TCD-500MA
Manufacturer	Littelfuse Inc.	Littelfuse Inc.	Littelfuse Inc.	SCHURTER Inc.	Bel Fuse Inc.	OptiFuse
Current Rating (mA)	500	500	500	630	500	500
Voltage Rating - AC (V)	250	250	250	250	250	250
Package / Case	5mm x 20mm	5mm x 20mm	5mm x 20mm	5mm x 20mm	5mm x 20mm	5mm x 20mm
Response Time	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow	Slow Blow
Breaking Capacity @ Rated Voltage (kA)	1.5	1.5	1.5	Not Specified	1.5	1.5
Operating Temperature Range	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C	-55°C to 125°C
Approval Agency	CE, CSA, SEMKO, UL, VDE	CE, CSA, SEMKO, UL, VDE	Not Specified	cURus, VDE	CCC, CE, CSA, cULus	cURus, IEC 60127
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

The 0215.500TXP represents the primary parametric equivalent, offering identical electrical specifications and certifications to the main part with full compliance to CE, CSA, SEMKO, UL, and VDE standards. The 5HT 500-R from Bel Fuse is the manufacturer-recommended alternative, maintaining all critical parameters with equivalent breaking capacity and certification coverage including CCC and cULus approval. The TCD-500MA from OptiFuse provides an alternative with cURus and IEC 60127 compliance, suitable for applications where these certifications satisfy design requirements. The 0285.500HXP is available as a parametric equivalent within the Littelfuse 285 series but lacks specified approval agency documentation. The 0001.2502 from SCHURTER operates at a higher current rating (630 mA) and should be selected only when circuit design permits the elevated current threshold and when VDE and cURus certifications are acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Can the 0001.2502 (630 mA) be used as a direct replacement for the 0215.500MXP (500 mA)?

A: The 0001.2502 maintains the same voltage rating, package dimensions, and response characteristics. However, the higher current rating means it will not interrupt circuits at 500 mA as quickly as the original part. Use only if circuit design analysis confirms that the 630 mA threshold is acceptable for the protected application.

Q: What is the difference between the 0215.500TXP and 0215.500MXP?

A: Both parts are Littelfuse 215 series ceramics with identical electrical ratings, voltage, package, and certifications. The primary difference is the internal construction variant (TXP vs MXP designation), which does not affect functional interchangeability.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all listed substitute parts maintain ROHS3 compliance status, ensuring compatibility with environmental and regulatory requirements.

Q: Does the 5HT 500-R have dimensional compatibility with the 0215.500MXP?

A: The 5HT 500-R has a diameter of 5.10mm compared to the 0215.500MXP at 5.20mm. Both fit standard 5mm x 20mm fuse holders with normal mechanical tolerance. Length is identical at 20mm (0.787 inches).

Q: Which substitute part has the broadest certification coverage?

A: The 5HT 500-R from Bel Fuse carries the most comprehensive certification set including CCC, CE, CSA, and cULus, making it suitable for applications requiring multiple regional compliance standards.

Q: Can the TCD-500MA be used in applications requiring UL certification?

A: The TCD-500MA carries cURus and IEC 60127 certifications but does not list UL approval. Use only if application requirements permit cURus certification as an alternative to UL.

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