Littelfuse 0505015.UXEP Ceramic Cartridge Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0505015.UXEP is a 15 A ceramic cartridge fuse rated for 500 V AC and 500 V DC operation. This fast-blow fuse is designed for through-hole mounting in the 3AB/3AG form factor (1/4" x 1-1/4" axial configuration). The part is currently active in production with ROHS3 compliance and operates across a temperature range of -55°C to 125°C. Substitute parts are identified when packaging or inventory requirements differ while maintaining identical electrical and mechanical specifications.

Substiute Parts

0505015.UXEP

Littelfuse Inc.In Stock: 11850505015.UXEP Datasheet

Current PartRFQ

0505015.MXEP

Littelfuse Inc.In Stock: 22100505015.MXEP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Littelfuse 0505015.MXEP is a parametric equivalent to the 0505015.UXEP. Substitution is valid based on the following criteria:

Identical Electrical Parameters:

• Current Rating: 15 A
• Voltage Rating - AC: 500 V
• Voltage Rating - DC: 500 V
• Response Time: Fast Blow

Identical Mechanical Parameters:

• Fuse Type: Cartridge, Ceramic
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial)
• Size / Dimension: 0.275" Dia x 1.288" L (6.99mm x 32.72mm)
• Mounting Type: Through Hole

Identical Environmental & Compliance:

• Operating Temperature: -55°C ~ 125°C
• RoHS Status: ROHS3 Compliant
• Series: 505
• Product Status: Active

The only difference between these parts is packaging format (tape/reel versus bulk), which does not affect electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the 0505015.UXEP and 0505015.MXEP are active production parts from Littelfuse Inc. with identical electrical and mechanical specifications. Selection between these parts should be based on packaging and procurement requirements:

• 0505015.UXEP is suitable for applications requiring tape/reel packaging format with current inventory of 1078 pieces.
• 0505015.MXEP is suitable for applications accepting bulk packaging format with higher inventory availability of 2200 pieces.

Both parts meet ROHS3 compliance requirements and operate within the same temperature range. The choice between them does not affect circuit performance or reliability when used in identical applications.

Frequently Asked Questions (FAQ)

Q: Can 0505015.MXEP be used as a direct replacement for 0505015.UXEP?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (tape/reel versus bulk). Direct substitution is valid for through-hole circuit board applications.

Q: What determines compatibility between these fuse parts?

A: Compatibility is determined by current rating (15 A), voltage ratings (500 V AC / 500 V DC), fuse type (ceramic cartridge), response time (fast blow), and physical dimensions (0.275" Dia x 1.288" L). Both parts match all these parameters.

Q: Does packaging format affect fuse performance?

A: No. Packaging format (tape/reel or bulk) affects only handling, storage, and procurement logistics. It does not affect electrical performance, response characteristics, or reliability.

Q: Are both parts RoHS compliant?

A: Yes. Both 0505015.UXEP and 0505015.MXEP are ROHS3 compliant.

Q: What is the operating temperature range for these fuses?

A: Both parts operate across -55°C to 125°C, suitable for industrial and commercial applications.

Q: Which part should I select if inventory is a concern?

A: The 0505015.MXEP offers higher current inventory (2200 pieces) compared to 0505015.UXEP (1078 pieces). Selection should align with project timeline and quantity requirements.