Littelfuse 047201.5MAT1L Board Mount Fuse Equivalent & Substitute Parts

Part Overview

The Littelfuse 047201.5MAT1L is a 1.5 A, 125 V AC/DC board mount fuse with slow blow response characteristics, designed for through hole axial mounting applications. This component is part of the PICO® II 472 series and maintains active product status. Equivalent parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part number becomes unavailable or when alternative packaging formats are required.

Substiute Parts

047201.5MAT1L

Littelfuse Inc.In Stock: 906047201.5MAT1L Datasheet

Current PartRFQ

047101.5MAT1L

Littelfuse Inc.In Stock: 2094047101.5MAT1L Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 047201.5MAT1L is determined by matching the following critical parameters:

• Current Rating: 1.5 A
• Voltage Rating: 125 V AC and 125 V DC
• Response Time: Slow Blow
• Mounting Type: Through Hole
• Package / Case: Axial
• Breaking Capacity: 50 A
• Operating Temperature Range: -55°C ~ 125°C
• Physical Dimensions: 0.110" Dia x 0.280" L (2.80mm x 7.11mm)
• RoHS Compliance: ROHS3 Compliant

The substitute part 047101.5MAT1L meets all critical electrical and mechanical parameters. Differences in packaging format (Tape & Box versus Cut Tape), series designation (PICO® II 472 versus PICO® II 471), and secondary characteristics such as melting I²t and DC cold resistance do not affect functional equivalence for board mount fuse applications where these parameters are within acceptable operational ranges.

Parameter Comparison

Engineering Selection Recommendations

Both the 047201.5MAT1L and 047101.5MAT1L are active products from Littelfuse Inc. with full regulatory compliance. The 047201.5MAT1L is packaged in Tape & Box format, while the 047101.5MAT1L is supplied in Cut Tape format. Selection between these parts should be based on procurement requirements and assembly process compatibility.

The 047101.5MAT1L carries additional approval certifications (CSA and PSE) beyond the UR certification of the main part, providing broader regulatory acceptance in different markets. Both parts maintain identical electrical performance characteristics and physical dimensions, ensuring direct functional substitution in board mount fuse applications.

Frequently Asked Questions (FAQ)

Q: Can 047101.5MAT1L replace 047201.5MAT1L in production assemblies?

A: Yes. Both parts share identical electrical ratings (1.5 A, 125 V AC/DC), response characteristics (Slow Blow), mounting configuration (Through Hole Axial), and physical dimensions (0.110" Dia x 0.280" L). The primary difference is packaging format: Tape & Box versus Cut Tape.

Q: What is the difference between PICO® II 472 and PICO® II 471 series?

A: Both series are Littelfuse board mount fuse lines with identical electrical and mechanical specifications for this 1.5 A rating. Series designation reflects internal product line organization and does not affect functional performance or compatibility.

Q: Are there packaging considerations when switching between these parts?

A: Yes. The 047201.5MAT1L arrives in Tape & Box packaging, suitable for manual handling and smaller volume orders. The 047101.5MAT1L is supplied in Cut Tape format, optimized for automated assembly processes. Verify your assembly equipment compatibility before switching packaging formats.

Q: Do the different approval agencies affect part selection?

A: The 047101.5MAT1L holds CSA, PSE, and UR certifications, while 047201.5MAT1L holds UR certification. If your application requires CSA or PSE compliance, the 047101.5MAT1L provides broader regulatory coverage. Both meet UR requirements.

Q: Are the melting I²t and DC cold resistance differences significant?

A: These secondary characteristics fall within acceptable operational ranges for board mount fuse applications. Both parts meet the 50 A breaking capacity specification and maintain equivalent protective performance at the 1.5 A rated current.