Littelfuse 0315005.MXSLP Fuse - Equivalent & Substitute Parts

Part Overview

The Littelfuse 0315005.MXSLP is a 5 A, 250 V AC/DC slow-blow glass cartridge fuse in 3AB/3AG package format (1/4" x 1-1/4" axial). This through-hole fuse is designed for circuit protection applications requiring slow-blow response characteristics. The part is active in production with full international compliance certifications. Substitute parts are identified when equivalent electrical and mechanical parameters match the original specification, ensuring direct functional replacement without circuit redesign.

Substiute Parts

0315005.MXSLP

Littelfuse Inc.In Stock: 8100315005.MXSLP Datasheet

Current PartRFQ

0315005.HXP

Littelfuse Inc.In Stock: 11420315005.HXP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 0315005.MXSLP is determined by strict equivalence across the following critical parameters:

• Current Rating: 5 A (exact match required)
• Voltage Rating (AC): 250 V (exact match required)
• Response Time: Slow Blow (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Package / Case: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Breaking Capacity @ Rated Voltage: 200 A (exact match required)
• Melting I²t: 140 (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)
• DC Cold Resistance: 0.0214 Ohms (exact match required)

The substitute part 0315005.HXP meets all these criteria and is therefore a direct parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both the 0315005.MXSLP and 0315005.HXP are active production parts from Littelfuse Inc. with identical electrical and mechanical specifications. The 0315005.HXP carries additional regional certifications (K-MARK, PSE) compared to the 0315005.MXSLP (CE, CSA, KC, METI, UL). Selection between these parts should be based on regional compliance requirements and inventory availability. The 0315005.HXP currently has higher inventory (1068 Pcs) compared to 0315005.MXSLP (714 Pcs).

Frequently Asked Questions (FAQ)

Q: Can 0315005.HXP be used as a direct replacement for 0315005.MXSLP?

A: Yes. Both parts are identical in current rating (5 A), voltage rating (250 V AC), response time (slow blow), fuse type (cartridge glass), package format (3AB/3AG), and all electrical parameters. Direct substitution is possible without circuit modification.

Q: Are there any differences in certifications between these parts?

A: The 0315005.MXSLP carries CE, CSA, KC, METI, and UL certifications. The 0315005.HXP carries CE, CSA, K-MARK, PSE, and UL certifications. Both meet international standards; selection depends on regional market requirements.

Q: Do these fuses have identical physical dimensions?

A: Yes. Both parts are 0.275" diameter x 1.275" length (6.99mm x 32.39mm) in the 3AB/3AG axial package format and mount identically in through-hole applications.

Q: What is the melting I²t value and why does it matter?

A: Both parts have a melting I²t of 140. This parameter defines the thermal energy required to melt the fuse element and is critical for coordination with circuit protection schemes. Identical values ensure equivalent protection characteristics.

Q: Are both parts RoHS compliant?

A: Yes. Both 0315005.MXSLP and 0315005.HXP are ROHS3 compliant and REACH unaffected.