Littelfuse 0215010.MXEP-RES Ceramic Fuse 10A 250VAC 5x20mm - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0215010.MXEP-RES is a ceramic cartridge fuse rated for 10A at 250VAC with slow-blow response characteristics. This through-hole component is designed for 5mm x 20mm axial mounting applications requiring circuit protection in AC and DC systems. The part maintains active product status with 1077 units in current inventory. Equivalent and substitute parts are identified when they share identical electrical ratings, mechanical dimensions, response time classification, and thermal operating range while maintaining compatibility with the specified package form factor.

Substiute Parts

0215010.MXEP-RES

Littelfuse Inc.In Stock: 10950215010.MXEP-RES Datasheet

Current PartRFQ

0215010.MXESPP

Littelfuse Inc.In Stock: 14680215010.MXESPP Datasheet

Parametric EquivalentRFQ

TUC UDA-P 10A 250V (PF)

ConquerIn Stock: 2144TUC UDA-P 10A 250V (PF) Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0215010.MXEP-RES is determined by strict equivalence across the following parameters: current rating (10A), voltage rating (250VAC), fuse type (ceramic cartridge), response time classification (slow blow), package dimensions (5mm x 20mm axial), mounting configuration (through hole), breaking capacity (1.5kA), and operating temperature range (-55°C to 125°C). Parts meeting all these criteria are classified as parametric equivalents. Variations in DC cold resistance, melting I²t values within acceptable tolerance, approval agency certifications, and manufacturer identity do not disqualify substitution when all primary electrical and mechanical parameters align.

Parameter Comparison

Engineering Selection Recommendations

All three parts listed—0215010.MXEP-RES, 0215010.MXESPP, and TUC UDA-P 10A 250V—are parametric equivalents meeting identical electrical and mechanical specifications. Selection between these parts may be based on availability, certification requirements specific to the application region, and inventory status. The 0215010.MXESPP maintains identical melting I²t and DC cold resistance values to the primary part, with certifications including CE, CSA, PSE, TUV, and UR. The TUC UDA-P variant from Conquer offers equivalent performance with certifications including CCC, cURus, KC, PSE, and TUV, with marginally lower DC cold resistance (0.0059 Ohms) and melting I²t (331.2). All parts are ROHS3 compliant and maintain active product status with current inventory availability.

Frequently Asked Questions (FAQ)

Q: Can the 0215010.MXESPP be used as a direct replacement for the 0215010.MXEP-RES?

A: Yes. Both parts share identical current rating (10A), voltage rating (250VAC), ceramic cartridge construction, slow-blow response time, 5mm x 20mm package dimensions, and operating temperature range (-55°C to 125°C). The melting I²t and DC cold resistance values are identical, confirming parametric equivalence.

Q: What are the key differences between the Littelfuse and Conquer fuses?

A: The TUC UDA-P 10A 250V from Conquer meets all primary electrical and mechanical specifications. Minor differences include DC cold resistance (0.0059 Ohms versus 0.0066 Ohms) and melting I²t (331.2 versus 334.665), which remain within acceptable tolerance for this product category. Certification agencies differ by region: Littelfuse parts include BSI, CE, CSA, KC, METI, SEMKO, UL, and VDE; Conquer includes CCC, cURus, KC, PSE, and TUV.

Q: Are all three parts suitable for the same circuit protection application?

A: Yes. All three parts are rated for 10A at 250VAC with identical breaking capacity (1.5kA), response time (slow blow), and package form factor (5mm x 20mm axial through-hole). Selection should account for regional certification requirements and application-specific compliance standards.

Q: What does "slow blow" response time mean for these fuses?

A: Slow-blow fuses tolerate temporary current surges without opening, responding only to sustained overcurrent conditions. This characteristic is consistent across all three listed parts and is determined by the melting I²t parameter, which defines the thermal energy required to melt the fuse element.

Q: Can these fuses be used in both AC and DC circuits?

A: Yes. All three parts are rated for 250VAC and are suitable for AC and DC applications within the specified voltage and current limits. The 10A rating applies to both AC and DC operation.