Electrical, Specialty Fuses

Manufacturer Series Package / Case Packaging Product Status Mounting Type Fuse Type Current Rating (Amps) Voltage Rating - AC Voltage Rating - DC Response Time Applications Features Class Approval Agency Operating Temperature Breaking Capacity @ Rated Voltage Size / Dimension Grade Qualification






























































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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Photo Mfr. Part # Availability Price Quantity Datasheet Series Package / Case Packaging Product Status Mounting Type Fuse Type Current Rating (Amps) Voltage Rating - AC Voltage Rating - DC Response Time Applications Features Class Approval Agency Operating Temperature Breaking Capacity @ Rated Voltage Size / Dimension Grade Qualification
FLSR600.X Littelfuse Inc.

FLSR600.X

FUSE CRTRDGE 600A 600VAC/300VDC

Littelfuse Inc.

2,038
RFQ
FLSR600.X Datasheet

Datasheet

POWR-GARD® FLSR Cylindrical, Blade Terminals Box Active Requires Holder Cartridge 600A 600 VAC 300 VDC Slow Blow Electrical, Industrial - RK5 CE, CSA, QPL, UL - 200kA AC, 20kA DC 3.094" Dia x 13.374" L (78.60mm x 339.70mm) - -
PSR072FL0630Z Littelfuse Inc.

PSR072FL0630Z

FUSE SQUARE 630A 1.3KVAC/1KVDC

Littelfuse Inc.

4,520
RFQ
PSR072FL0630Z Datasheet

Datasheet

POWR-SPEED® PSR - Bulk Active Bolt Mount Square 630A 1.3 kVAC 1 kVDC Fast Blow Semiconductors - - CCC, CE, cURus, UL -55°C ~ 125°C 100kA AC, 150kA DC 2.953" L x 2.362" W x 2.598" H (75.00mm x 60.00mm x 66.00mm) - -
0JTD350.X Littelfuse Inc.

0JTD350.X

FUSE CRTRDGE 350A 600VAC/500VDC

Littelfuse Inc.

3,488
RFQ
0JTD350.X Datasheet

Datasheet

POWR-GARD®, POWR-PRO® JTD Cylindrical, Blade Terminals Bulk Active Requires Holder Cartridge 350A 600 VAC 500 VDC Slow Blow Transformer Protection - J CE, CSA, UL - 200kA AC, 20kA DC 2.000" Dia x 3.374" L (50.80mm x 85.70mm) - -
0JTD225.X Littelfuse Inc.

0JTD225.X

FUSE CRTRDGE 225A 600VAC/500VDC

Littelfuse Inc.

2,880
RFQ
0JTD225.X Datasheet

Datasheet

POWR-GARD®, POWR-PRO® JTD Cylindrical, Blade Terminals Bulk Active Requires Holder Cartridge 225A 600 VAC 500 VDC Slow Blow Transformer Protection - J CE, CSA, UL - 200kA AC, 20kA DC 2.000" Dia x 3.374" L (50.80mm x 85.70mm) - -
0JTD250.X Littelfuse Inc.

0JTD250.X

FUSE CRTRDGE 250A 600VAC/500VDC

Littelfuse Inc.

2,935
RFQ
0JTD250.X Datasheet

Datasheet

POWR-GARD®, POWR-PRO® JTD Cylindrical, Blade Terminals Bulk Active Requires Holder Cartridge 250A 600 VAC 500 VDC Slow Blow Transformer Protection - J CE, CSA, UL - 200kA AC, 20kA DC 2.000" Dia x 3.374" L (50.80mm x 85.70mm) - -
0JTD300.X Littelfuse Inc.

0JTD300.X

FUSE CRTRDGE 300A 600VAC/500VDC

Littelfuse Inc.

7,614
RFQ
0JTD300.X Datasheet

Datasheet

POWR-GARD®, POWR-PRO® JTD Cylindrical, Blade Terminals Bulk Active Requires Holder Cartridge 300A 600 VAC 500 VDC Slow Blow Transformer Protection - J CE, CSA, UL - 200kA AC, 20kA DC 2.000" Dia x 3.374" L (50.80mm x 85.70mm) - -
0JTD400.XXID Littelfuse Inc.

0JTD400.XXID

FUSE CRTRDGE 400A 600VAC/500VDC

Littelfuse Inc.

1,038
RFQ
0JTD400.XXID Datasheet

Datasheet

POWR-GARD®, POWR-PRO® JTD_ID Cylindrical, Alarm Indicator, Blade Terminal Bulk Active Requires Holder Cartridge 400A 600 VAC 500 VDC Slow Blow Transformer Protection Indicating J CE, CSA, UL - 200kA AC, 20kA DC 2.000" Dia x 3.374" L (50.80mm x 85.70mm) - -
LPJ-350SP Eaton - Bussmann Electrical Division

LPJ-350SP

FUSE CRTRDGE 350A 600VAC/300VDC

Eaton - Bussmann Electrical Division

3,383
RFQ
LPJ-350SP Datasheet

Datasheet

LOW-PEAK™ LPJ Cylindrical, Blade Terminal (Bolt) Bulk Active Bolt Mount Cartridge 350A 600 VAC 300 VDC Slow Blow Electrical, Industrial - J CE, CSA, UL - 300kA AC, 100kA DC 2.000" Dia x 3.380" L (50.80mm x 85.85mm) - -
L75QS800.X Littelfuse Inc.

L75QS800.X

750VDC HIGHSPEED SEMICONDUCTOR F

Littelfuse Inc.

4,803
RFQ
L75QS800.X Datasheet

Datasheet

POWR-SPEED® L75QS Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 800A - 750 VDC Fast Blow Electrical, Industrial - - CE, cURus, UL -55°C ~ 125°C 50kA 2.500" Dia x 2.844" L (63.50mm x 72.24mm) - -
PSX1XLUB0450X Littelfuse Inc.

PSX1XLUB0450X

FUSE SEMI 1500VDC 1XL SIZE 450A

Littelfuse Inc.

4,865
RFQ
PSX1XLUB0450X Datasheet

Datasheet

POWR-SPEED® PSX Rectangular, Blade Box Active Bolt Mount Square 450A - 1.5 kVDC Fast Blow Semiconductors Indicating - CE, cURus, UL -55°C ~ 125°C 200kA 4.988" L x 2.028" W x 2.264" H (126.70mm x 51.50mm x 57.50mm) - -
JLLN800.X Littelfuse Inc.

JLLN800.X

FUSE CRTRDGE 800A 300VAC/125VDC

Littelfuse Inc.

4,916
RFQ
JLLN800.X Datasheet

Datasheet

POWR-GARD® JLLN Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 800A 300 VAC 125 VDC Fast Blow Electrical, Industrial - T CE, UL - 200kA AC, 20kA DC 2.063" Dia x 0.874" L (52.40mm x 22.20mm) - -
A4BQ1000 Mersen USA Newburyport-MA L.L.C.

A4BQ1000

L TD FUSE 600V 1000A A4BQ

Mersen USA Newburyport-MA L.L.C.

4,988
RFQ
A4BQ1000 Datasheet

Datasheet

A4BQ Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 1kA 600 VAC 500 VDC Slow Blow Electrical, Industrial - L CSA, UL - 200kA AC, 100kA DC 2.480" Dia x 10.748" L (63.00mm x 273.00mm) - -
JLLS1000X Littelfuse Inc.

JLLS1000X

FUSE CARTRIDGE 1KA 600VAC/300VDC

Littelfuse Inc.

1,190
RFQ
JLLS1000X Datasheet

Datasheet

POWR-GARD® JLLS Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 1kA 600 VAC 300 VDC Fast Blow Electrical, Industrial - T CE, UR - 200kA 2.630" Dia x 2.299" L (66.80mm x 58.40mm) - -
A4BQ800 Mersen USA Newburyport-MA L.L.C.

A4BQ800

L TD FUSE 600V 800A A4BQ

Mersen USA Newburyport-MA L.L.C.

1,989
RFQ
A4BQ800 Datasheet

Datasheet

A4BQ Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 800A 600 VAC 500 VDC Slow Blow Electrical, Industrial - L CSA, UL - 200kA AC, 100kA DC 2.480" Dia x 8.622" L (63.00mm x 219.00mm) - -
KLLU1200X Littelfuse Inc.

KLLU1200X

FUSE CRTRDGE 1.2KA 600VAC/300VDC

Littelfuse Inc.

1,376
RFQ
KLLU1200X Datasheet

Datasheet

POWR-GARD® KLLU Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 1.2kA 600 VAC 300 VDC Slow Blow Electrical, Industrial - L CE, CSA, UL - 200kA AC, 20kA DC 2.500" Dia x 3.752" L (63.50mm x 95.30mm) - -
KLLU650.X Littelfuse Inc.

KLLU650.X

FUSE CRTRDGE 650A 600VAC/300VDC

Littelfuse Inc.

3,913
RFQ
KLLU650.X Datasheet

Datasheet

POWR-GARD® KLLU Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 650A 600 VAC 300 VDC Slow Blow Electrical, Industrial - L CE, CSA, UL - 200kA AC, 20kA DC 2.500" Dia x 3.752" L (63.50mm x 95.30mm) - -
0LDC300.X Littelfuse Inc.

0LDC300.X

FUSE CARTRIDGE 300A 600VAC/VDC

Littelfuse Inc.

2,437
RFQ
0LDC300.X Datasheet

Datasheet

POWR-GARD®, POWR-PRO® LDC Cylindrical, Blade Terminal (Bolt) Bulk Active Bolt Mount Cartridge 300A 600 VAC 600 VDC Fast Blow Solar (Photovoltaic) - L CE, CSA, UR - 200kA AC, 50kA DC 2.500" Dia x 3.752" L (63.50mm x 95.30mm) - -
A4BY2500 Mersen USA Newburyport-MA L.L.C.

A4BY2500

FUSE,CLASS L,TIME DELAY,200KA AC

Mersen USA Newburyport-MA L.L.C.

6,411
RFQ
A4BY2500 Datasheet

Datasheet

A4BY Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 2.5kA 600 VAC 300 VDC Slow Blow Electrical, Industrial - L CSA, UL - 200kA AC, 100kA DC 4.488" Dia x 10.748" L (114.00mm x 273.00mm) - -
RJS 1.25 Bel Fuse Inc.

RJS 1.25

FUSE BRD MNT 1.25A 600VAC RADIAL

Bel Fuse Inc.

7,212
RFQ
RJS 1.25 Datasheet

Datasheet

RJS Radial Bend Cylinder Bulk Obsolete Through Hole Board Mount 1.25A 600 VAC - Slow Blow Telecom - - CE, CSA, cURus -55°C ~ 125°C 60A 0.181" Dia x 0.760" L (4.60mm x 19.30mm) - -
RJS 2 Bel Fuse Inc.

RJS 2

FUSE BRD MNT 2A 600VAC RAD BEND

Bel Fuse Inc.

6,831
RFQ
RJS 2 Datasheet

Datasheet

RJS Radial Bend Cylinder Bulk Obsolete Through Hole Board Mount 2A 600 VAC - Slow Blow Telecom - - CE, CSA, cURus -55°C ~ 125°C 60A 0.181" Dia x 0.760" L (4.60mm x 19.30mm) - -
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Electrical, Specialty Fuses Electronic Components Sourcing and Lifecycle Support

FPGAX is a global sourcing partner specializing in FPGA and programmable logic solutions for engineering and manufacturing organizations worldwide. For customers sourcing Electrical, Specialty Fuses components, we support both current production requirements and long-term component availability across demanding product lifecycles.

Our sourcing approach combines traceability, supply stability, and technical coordination. FPGAX is certified to AS9120B, ISO 9001:2008, and ISO 14001 standards and supports procurement programs where continuity, documentation, and dependable component supply are important.

How FPGAX Supports Electrical, Specialty Fuses Requirements

  • Active component sourcing: support for current FPGA, programmable logic, and related semiconductor requirements.
  • End-of-life sourcing: assistance with obsolete and hard-to-find parts when designs must remain in production.
  • Lifecycle management: sourcing support during product transitions, allocation periods, and supply interruptions.
  • Design continuity: long-term supply support intended to reduce redesign pressure and production disruption.
  • Major programmable logic brands: sourcing coverage includes Xilinx, Intel/Altera, Lattice, Microchip, and QuickLogic.

Supply Support at a Glance

Requirement FPGAX Support
Current production Active FPGA, programmable logic, and semiconductor component sourcing
Legacy programs End-of-life and hard-to-find component sourcing
Supply continuity Lifecycle transition and long-term availability support
Quality requirements Traceable sourcing and quality-management processes

Focused on FPGA and Programmable Logic Supply

FPGAX focuses on helping customers maintain access to critical programmable devices throughout the full component lifecycle. Whether the requirement is for a current design, an established production program, or an older platform facing component obsolescence, our goal is to provide a stable sourcing path and help customers maintain design and manufacturing continuity.

Electrical, Specialty Fuses FAQ

Can FPGAX source both active and end-of-life Electrical, Specialty Fuses components?

Yes. FPGAX supports sourcing for both active components and end-of-life or hard-to-find parts, with an emphasis on maintaining supply continuity for engineering and manufacturing programs.

Which programmable logic manufacturers does FPGAX support?

Our core sourcing coverage includes major FPGA and programmable logic manufacturers such as Xilinx, Intel/Altera, Lattice, Microchip, and QuickLogic, subject to specific part requirements and availability.

How does FPGAX help with component lifecycle changes?

We support customers through lifecycle transitions by helping locate current or legacy supply, reducing exposure to supply disruptions, and supporting long-term availability for designs that need to remain in production.

What quality and traceability standards does FPGAX follow?

FPGAX states certification to AS9120B, ISO 9001:2008, and ISO 14001 standards. Our sourcing services are structured around traceability, stable supply, and quality-management requirements.

What information should I provide for a Electrical, Specialty Fuses sourcing request?

Providing the manufacturer part number, required quantity, target delivery schedule, and any lifecycle or traceability requirements helps us evaluate the sourcing request more efficiently.