Littelfuse 0251007.MAT1JL PICO® II 251 Board Mount Fuse 7A 125VAC/VDC Axial

Part Overview

The Littelfuse 0251007.MAT1JL is a through-hole axial board mount fuse rated for 7 amperes at 125 volts AC/DC. This component belongs to the PICO® II 251 series and is designed for fast-blow protection in electronic circuits. The part is currently active in production and widely available. Alternative packaging and tape configurations of this fuse are available to accommodate different procurement, assembly, and inventory requirements across manufacturing environments.

Substiute Parts

0251007.MAT1JL
Littelfuse Inc.In Stock: 8080251007.MAT1JL Datasheet
0251007.MAT1JL
Current Part
0251007.HAT1L
Littelfuse Inc.In Stock: 11010251007.HAT1L Datasheet
0251007.HAT1L
Parametric Equivalent
0251007.MAT1L
Littelfuse Inc.In Stock: 27040251007.MAT1L Datasheet
0251007.MAT1L
Parametric Equivalent
0251007.PAT1L
Littelfuse Inc.In Stock: 11370251007.PAT1L Datasheet
0251007.PAT1L
Parametric Equivalent

Key Parameters

Parameter Value
Manufacturer Littelfuse Inc.
Series PICO® II 251
Current Rating 7 A
Voltage Rating (AC) 125 V
Voltage Rating (DC) 125 V
Response Time Fast Blow
Mounting Type Through Hole
Package / Case Axial
Size / Dimension 0.110" Dia x 0.280" L (2.80mm x 7.11mm)
Operating Temperature Range -55°C ~ 125°C
Approval Agencies CSA, cURus, TUV
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the 0251007.MAT1JL is determined by electrical and mechanical parameter equivalence within the PICO® II 251 series. The substitute parts maintain identical specifications across the following critical parameters:

  • Current Rating: 7 A
  • Voltage Rating: 125 V AC / 125 V DC
  • Response Time: Fast Blow
  • Mounting Type: Through Hole
  • Package / Case: Axial
  • Physical Dimensions: 0.110" Dia x 0.280" L (2.80mm x 7.11mm)
  • Operating Temperature Range: -55°C ~ 125°C
  • Regulatory Approvals: CSA, cURus, TUV
  • RoHS Compliance: ROHS3 Compliant

The primary difference among substitute parts is packaging configuration (Tape & Box versus Cut Tape), which affects procurement and assembly logistics but does not alter electrical or mechanical performance. Breaking capacity specifications vary between the main part (70A AC, 300A DC) and certain substitutes (50A AC, 300A DC), representing a secondary distinction in fault current handling capability.

Parameter Comparison

Parameter 0251007.MAT1JL (Main) 0251007.HAT1L 0251007.MAT1L 0251007.PAT1L
Manufacturer Littelfuse Inc. Littelfuse Inc. Littelfuse Inc. Littelfuse Inc.
Series PICO® II 251 PICO® II 251 PICO® II 251 PICO® II 251
Packaging Tape & Box (TB) Cut Tape (CT) Cut Tape (CT) Tape & Box (TB)
Current Rating (Amps) 7 A 7 A 7 A 7 A
Voltage Rating - AC 125 V 125 V 125 V 125 V
Voltage Rating - DC 125 V 125 V 125 V 125 V
Response Time Fast Blow Fast Blow Fast Blow Fast Blow
Mounting Type Through Hole Through Hole Through Hole Through Hole
Package / Case Axial Axial Axial Axial
Size / Dimension 0.110" Dia x 0.280" L (2.80mm x 7.11mm) 0.110" Dia x 0.280" L (2.80mm x 7.11mm) 0.110" Dia x 0.280" L (2.80mm x 7.11mm) 0.110" Dia x 0.280" L (2.80mm x 7.11mm)
Breaking Capacity @ Rated Voltage 70A AC, 300A DC 50A AC, 300A DC 50A AC, 300A DC 50A AC, 300A DC
Melting I²t 10.4 10.4 10.4 10.4
DC Cold Resistance 0.0107 Ohms 0.0107 Ohms 0.0107 Ohms 0.0107 Ohms
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C
Approval Agency CSA, cURus, TUV CSA, cURus, TUV CSA, cURus, TUV CSA, cURus, TUV
RoHS Status ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant
Product Status Active Active Active Active

Engineering Selection Recommendations

All substitute parts maintain full electrical and mechanical compatibility with the 0251007.MAT1JL within the specified operating parameters. Selection among these alternatives should be based on packaging requirements and procurement logistics:

0251007.MAT1JL and 0251007.PAT1L are supplied in Tape & Box (TB) packaging, suitable for standard reel-based automated assembly processes and bulk inventory management.

0251007.HAT1L and 0251007.MAT1L are supplied in Cut Tape (CT) packaging, appropriate for smaller quantity orders, manual assembly operations, or applications requiring individual component handling.

All parts carry identical regulatory approvals (CSA, cURus, TUV) and RoHS3 compliance certification, ensuring equivalence for applications subject to these standards. The breaking capacity difference (70A AC versus 50A AC) between the main part and certain substitutes should be evaluated against specific circuit fault current requirements; however, all parts maintain 300A DC breaking capacity.

Frequently Asked Questions (FAQ)

Q: Can 0251007.HAT1L, 0251007.MAT1L, and 0251007.PAT1L be used interchangeably with 0251007.MAT1JL?

A: Yes, these parts are electrically and mechanically equivalent. All maintain identical current ratings (7 A), voltage ratings (125 V AC/DC), response time (Fast Blow), physical dimensions, and regulatory approvals. Substitution is valid from an engineering standpoint.

Q: What is the difference between Tape & Box (TB) and Cut Tape (CT) packaging?

A: Tape & Box packaging supplies components on continuous tape with a protective box, suitable for high-volume automated assembly. Cut Tape packaging provides components on tape segments without the box, typically used for lower-volume orders or manual assembly. Both formats contain identical components.

Q: Does the breaking capacity difference affect substitution eligibility?

A: The main part (0251007.MAT1JL) specifies 70A AC breaking capacity, while substitutes specify 50A AC. Both maintain 300A DC breaking capacity. Selection should account for the maximum fault current in the application circuit. If fault current exceeds 50A AC, the main part is required.

Q: Are all substitute parts RoHS and regulatory compliant?

A: Yes. All parts listed are ROHS3 compliant and carry identical regulatory approvals from CSA, cURus, and TUV.

Q: Which part should I select for automated assembly?

A: For automated pick-and-place assembly, select either 0251007.MAT1JL or 0251007.PAT1L (both Tape & Box packaging). For manual assembly or lower-volume applications, 0251007.HAT1L or 0251007.MAT1L (Cut Tape packaging) are appropriate.

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