Littelfuse 0285010.MXRP Ceramic Fuse 10A 250VAC 5x20mm Equivalent & Substitute Parts

Part Overview

The Littelfuse 0285010.MXRP is a 10A 250VAC ceramic cartridge fuse in 5x20mm form factor, designed for applications requiring slow-blow response characteristics. This part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain identical electrical and mechanical specifications. Substitute parts must preserve the 10A current rating, 250V AC voltage rating, 5x20mm package dimensions, slow-blow response time, and ceramic cartridge construction to ensure direct functional replacement without circuit redesign.

Key Parameters

Parameter	Value
Current Rating	10 A
Voltage Rating (AC)	250 V
Package / Case	5mm x 20mm
Fuse Type	Cartridge, Ceramic
Response Time	Slow Blow
Mounting Type	Requires Holder
Breaking Capacity @ Rated Voltage	1.5kA
Operating Temperature Range	-55°C ~ 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 0285010.MXRP is determined by strict equivalence across the following parameters:

Current Rating: 10 A (exact match required)
Voltage Rating (AC): 250 V (exact match required)
Package / Case: 5mm x 20mm (exact match required)
Fuse Type: Cartridge, Ceramic (exact match required)
Response Time: Slow Blow (exact match required)
Breaking Capacity @ Rated Voltage: 1.5kA (exact match required)
Operating Temperature Range: -55°C ~ 125°C (exact match required)

Substitute parts are organized into two categories:

Category 1: Littelfuse Series 215 (Active Status) Parts 0215010.MXP, 0215010.HXP, 0215010.MXBP, 0215010.MXGP, 0215010.MXP-RES, 0215010.TXP, and 0215010.VXP meet all electrical and mechanical parameters. These represent the manufacturer-recommended upgrade path from the obsolete Series 285 variant.

Category 2: Littelfuse Series 285 (Active Status) Parts 0285010.HXP and 0285010.MXP maintain the same series designation as the original part and satisfy all parameter requirements with active product status.

Category 3: Cross-Manufacturer Alternative Part 0001.2514 (SCHURTER Inc., SPT 5x20 series) provides parametric equivalence with identical electrical ratings and package dimensions. This part includes additional DC voltage rating (150V DC) and higher melting I²t (400 vs. 355), representing a functionally compatible alternative from a different manufacturer.

Parameter Comparison

Part Number	Manufacturer	Series	Current (A)	Voltage AC (V)	Package	Response Time	Breaking Capacity (kA)	Melting I²t	Product Status	Approval Agency
0285010.MXRP	Littelfuse Inc.	285	10	250	5x20mm	Slow Blow	1.5	355	Obsolete	PSE
0215010.MXP	Littelfuse Inc.	215	10	250	5x20mm	Slow Blow	1.5	334.665	Active	CE, CSA, KC, PSE, SEMKO, UL, VDE
0215010.HXP	Littelfuse Inc.	215	10	250	5x20mm	Slow Blow	1.5	334.665	Active	CE, CSA, KC, PSE, SEMKO, UL, VDE
0215010.MXBP	Littelfuse Inc.	215	10	250	5x20mm	Slow Blow	1.5	334.665	Active	CE, CSA, KC, PSE, SEMKO, UL, VDE
0215010.MXGP	Littelfuse Inc.	215	10	250	5x20mm	Slow Blow	1.5	334.665	Active	CE, CSA, KC, PSE, SEMKO, UL, VDE
0215010.MXP-RES	Littelfuse Inc.	215	10	250	5x20mm	Slow Blow	1.5	334.665	Active	BSI, CE, CSA, KC, METI, SEMKO, UL, VDE
0215010.TXP	Littelfuse Inc.	215	10	250	5x20mm	Slow Blow	1.5	334.665	Active	CE, CSA, KC, PSE, SEMKO, UL, VDE
0215010.VXP	Littelfuse Inc.	215	10	250	5x20mm	Slow Blow	1.5	334.665	Active	CE, CSA, KC, PSE, SEMKO, UL, VDE
0285010.HXP	Littelfuse Inc.	285	10	250	5x20mm	Slow Blow	1.5	355	Active	PSE
0285010.MXP	Littelfuse Inc.	285	10	250	5x20mm	Slow Blow	1.5	355	Active	PSE
0001.2514	SCHURTER Inc.	SPT 5x20	10	250	5x20mm	Slow Blow	1.5 (DC)	400	Active	cURus, VDE

Engineering Selection Recommendations

Primary Recommendation: Littelfuse Series 215 (0215010.MXP, 0215010.HXP, 0215010.MXBP, 0215010.MXGP, 0215010.MXP-RES, 0215010.TXP, 0215010.VXP)

These parts represent the active product line replacement for the obsolete 0285010.MXRP. All Series 215 variants maintain electrical and mechanical equivalence while offering expanded regulatory approvals (CE, CSA, KC, PSE, SEMKO, UL, VDE). The broader certification portfolio ensures compliance across international markets. Inventory availability ranges from 717 to 11,283 units across variants, supporting immediate procurement.

Secondary Recommendation: Littelfuse Series 285 (0285010.HXP, 0285010.MXP)

These parts preserve the original series designation and maintain identical melting I²t (355) and DC cold resistance (0.0065 Ohms) specifications. Selection is appropriate when series continuity is required for design documentation or when PSE certification alone satisfies regulatory requirements. Inventory availability is lower (924–966 units).

Alternative Recommendation: SCHURTER 0001.2514

This cross-manufacturer part satisfies all core electrical and mechanical parameters with active product status. The higher melting I²t (400 vs. 355) and additional DC voltage rating (150V) provide enhanced performance margins. Selection is appropriate when multi-source qualification is required or when SCHURTER parts are already qualified in the design. Inventory availability is highest at 22,984 units.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts as a direct replacement for 0285010.MXRP?

A: Yes. All listed substitute parts maintain the required 10A current rating, 250V AC voltage rating, 5x20mm package dimensions, slow-blow response time, and ceramic cartridge construction. Direct substitution is electrically and mechanically valid without circuit modification.

Q: What is the difference between Littelfuse Series 215 and Series 285 parts?

A: Both series meet identical electrical specifications for this 10A 250VAC application. Series 215 parts offer expanded regulatory approvals (CE, CSA, KC, SEMKO, UL, VDE in addition to PSE), while Series 285 parts maintain PSE certification only. Series 215 represents the current active product line; Series 285 is transitional. Melting I²t differs slightly (334.665 for Series 215 vs. 355 for Series 285), but both values satisfy the 1.5kA breaking capacity requirement.

Q: Why does SCHURTER 0001.2514 have a higher melting I²t value?

A: The melting I²t (400 vs. 355) reflects the thermal energy dissipation characteristics of the SCHURTER ceramic element. This higher value does not affect substitution validity; it indicates the fuse will tolerate slightly higher transient energy before melting. The part remains functionally equivalent for the specified 10A 250VAC application.

Q: Does the SCHURTER part's 150V DC rating affect its use in AC-only circuits?

A: No. The 150V DC rating is an additional capability that does not impact AC circuit performance. The part is rated for 250V AC operation, which is the controlling specification for AC applications. The DC rating provides flexibility if the part is later used in dual AC/DC applications.

Q: Which substitute part should I select for new designs?

A: For new designs, Littelfuse Series 215 parts (0215010.MXP, 0215010.HXP, 0215010.MXBP, 0215010.MXGP, 0215010.MXP-RES, 0215010.TXP, 0215010.VXP) are recommended. These represent the active product line with comprehensive regulatory approvals and highest inventory availability. Selection among Series 215 variants depends on packaging requirements (bulk) and specific approval agency needs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts carry ROHS3 Compliant status, matching the original 0285010.MXRP specification.

Q: What is the operating temperature range for all substitute parts?

A: All substitute parts operate across the identical -55°C to 125°C temperature range, matching the original part specification.

Q: Can I mix different substitute part numbers in the same circuit or equipment?

A: Yes. All substitute parts meet identical electrical and mechanical specifications for the 10A 250VAC 5x20mm application. Mixing part numbers from different series or manufacturers does not affect circuit performance, provided all parts are installed in compatible fuse holders.

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