Littelfuse 0318003.MXP Equivalent & Substitute Parts

Part Overview

The Littelfuse 0318003.MXP is a 3 A, 250 V AC/DC fast-blow glass cartridge fuse with 3AB/3AG package configuration. This through-hole fuse is designed for general-purpose circuit protection in industrial and commercial applications. The part maintains active product status with full compliance to international safety standards including UL, CSA, CE, KC, and PSE certifications. Identifying equivalent substitute parts is necessary to ensure supply chain continuity, optimize inventory management, and maintain design flexibility across manufacturing environments.

Substiute Parts

0318003.MXP

Littelfuse Inc.In Stock: 9150318003.MXP Datasheet

Current PartRFQ

BK/AGC-V-3-R

Eaton - Electronics DivisionIn Stock: 796BK/AGC-V-3-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Littelfuse 0318003.MXP are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

• Current Rating: 3 A (exact match required)
• Voltage Rating: 250 V AC (exact match required)
• Fuse Type: Cartridge, Glass (exact match required)
• Response Time: Fast Blow (exact match required)
• Package Configuration: 3AB, 3AG, 1/4" x 1-1/4" (Axial) (exact match required)
• Mounting Type: Through Hole (exact match required)
• Breaking Capacity: 100 A (exact match required)
• Operating Temperature Range: -55°C ~ 125°C (exact match required)

The Eaton BK/AGC-V-3-R meets all mandatory electrical and mechanical parameters, confirming its status as a direct equivalent substitute for the Littelfuse 0318003.MXP.

Parameter Comparison

Engineering Selection Recommendations

Both the Littelfuse 0318003.MXP and Eaton BK/AGC-V-3-R are active products with full regulatory compliance. The Littelfuse part carries approvals from CE, CSA, KC, PSE, and UL. The Eaton substitute carries CSA and UL approvals. Both parts are ROHS3 compliant and REACH unaffected, meeting modern environmental and safety standards. Selection between these parts should be based on supply availability, inventory position, and existing qualification requirements within your design or manufacturing environment.

Frequently Asked Questions (FAQ)

Q: Can the Eaton BK/AGC-V-3-R be used as a direct replacement for the Littelfuse 0318003.MXP?

A: Yes. Both parts share identical electrical ratings (3 A, 250 V AC), fuse type (cartridge, glass), response time (fast blow), package configuration (3AB, 3AG), and breaking capacity (100 A). Physical dimensions are within acceptable tolerance for through-hole mounting applications.

Q: What are the differences between these two parts?

A: The primary differences are melting I²t values (Littelfuse: 14 vs. Eaton: 45.9) and DC cold resistance (Littelfuse: 0.0427 Ohms vs. Eaton: 0.035 Ohms). Physical dimensions show minor variations within the 3AG package specification. Regulatory approvals differ slightly, with Littelfuse holding additional KC and PSE certifications.

Q: Are the physical dimensions identical?

A: Dimensions are nominally equivalent within 3AG package tolerances. Littelfuse specifies 0.275" diameter × 1.288" length; Eaton specifies 0.266" diameter × 1.292" length. Both fit standard 3AG fuse holders and through-hole PCB footprints.

Q: Which certifications apply to both parts?

A: Both parts hold CSA and UL certifications. The Littelfuse part additionally carries CE, KC, and PSE approvals. Both are ROHS3 compliant and REACH unaffected.

Q: Can I mix these parts in the same circuit board design?

A: Yes, provided your design qualifies both parts and your manufacturing process accommodates either variant. Identical electrical parameters ensure functional interchangeability in circuit protection applications.