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
PSR072UL0450X Littelfuse Inc.

PSR072UL0450X

FUSE SQUARE 450A 1.3KVAC/1KVDC

Littelfuse Inc.

1,158
RFQ
PSR072UL0450X Datasheet

Datasheet

POWR-SPEED® PSR - Box Active Bolt Mount Square 450A 1.3 kVAC 1 kVDC Fast Blow Semiconductors Indicating - CE, cURus, UL -55°C ~ 125°C 100kA AC, 150kA DC 2.843" L x 2.362" W x 2.598" H (72.20mm x 60.00mm x 66.00mm) - -
PSX1XLDB0125X Littelfuse Inc.

PSX1XLDB0125X

FUSE SEMI 1500VDC 1XL SIZE 125A

Littelfuse Inc.

1,994
RFQ
PSX1XLDB0125X Datasheet

Datasheet

POWR-SPEED® PSX Rectangular, Blade Box Active Bolt Mount Square 125A - 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) - -
PSX1XLUB0200X Littelfuse Inc.

PSX1XLUB0200X

FUSE SEMI 1500VDC 1XL SIZE 200A

Littelfuse Inc.

5,063
RFQ
PSX1XLUB0200X Datasheet

Datasheet

POWR-SPEED® PSX Rectangular, Blade Box Active Bolt Mount Square 200A - 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) - -
L50QS800.X Littelfuse Inc.

L50QS800.X

FUSE CRTRDGE 800A 500VAC/VDC

Littelfuse Inc.

1,494
RFQ
L50QS800.X Datasheet

Datasheet

POWR-SPEED™ L50QS Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 800A 500 VAC 500 VDC Fast Blow Semiconductors - - CE, cURus, UR -55°C ~ 125°C 200kA AC, 50kA DC 2.500" Dia x 6.187" L (63.50mm x 157.15mm) - -
PSX1XLFL0250X Littelfuse Inc.

PSX1XLFL0250X

FUSE SEMI 1500VDC 1XL SIZE 250A

Littelfuse Inc.

4,489
RFQ
PSX1XLFL0250X Datasheet

Datasheet

POWR-SPEED® PSX Rectangular Box Active Bolt Mount Square 250A - 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) - -
PSR073UL0500X Littelfuse Inc.

PSR073UL0500X

FUSE SQUARE 500A 1.3KVAC/1KVDC

Littelfuse Inc.

4,966
RFQ
PSR073UL0500X Datasheet

Datasheet

POWR-SPEED® PSR - Box Active Bolt Mount Square 500A 1.3 kVAC 1 kVDC Fast Blow Semiconductors Indicating - CE, cURus, UL -55°C ~ 125°C 100kA AC, 150kA DC 2.882" L x 2.894" W x 3.130" H (73.20mm x 73.50mm x 79.50mm) - -
SPFJ250.X Littelfuse Inc.

SPFJ250.X

FUSE CARTRIDGE 250A 600VAC/1KVDC

Littelfuse Inc.

2,361
RFQ
SPFJ250.X Datasheet

Datasheet

POWR-GARD® SPFJ Cylindrical, Blade Terminals Box Active Requires Holder Cartridge 250A 600 VAC 1 kVDC Fast Blow Solar (Photovoltaic) - J CE, cULus, UL, VDE - 200kA AC, 10kA DC 2.000" Dia x 7.126" L (50.80mm x 181.00mm) - -
SPFJ300.X Littelfuse Inc.

SPFJ300.X

FUSE CARTRIDGE 300A 600VAC/1KVDC

Littelfuse Inc.

3,908
RFQ
SPFJ300.X Datasheet

Datasheet

POWR-GARD® SPFJ Cylindrical, Blade Terminals Bulk Active Requires Holder Cartridge 300A 600 VAC 1 kVDC Fast Blow Solar (Photovoltaic) - J CE, cULus, UL, VDE - 200kA AC, 10kA DC 2.000" Dia x 7.126" L (50.80mm x 181.00mm) - -
PSR073FS0400Z Littelfuse Inc.

PSR073FS0400Z

FUSE SQUARE 400A 1.3KVAC/1KVDC

Littelfuse Inc.

2,770
RFQ
PSR073FS0400Z Datasheet

Datasheet

POWR-SPEED® PSR - Bulk Active Bolt Mount Square 400A 1.3 kVAC 1 kVDC Fast Blow Semiconductors - - CCC, CE, cURus, UL -55°C ~ 125°C 100kA AC, 150kA DC 2.953" L x 2.894" W x 3.130" H (75.00mm x 73.50mm x 79.50mm) - -
L70QS450.X Littelfuse Inc.

L70QS450.X

FUSE CRTRDGE 450A 700VAC/700VDC

Littelfuse Inc.

3,457
RFQ
L70QS450.X Datasheet

Datasheet

POWR-SPEED™ L70QS Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 450A 700 VAC 700 VDC Fast Blow Semiconductors - - CE, cURus, UR -55°C ~ 125°C 200kA AC, 50kA DC 2.000" Dia x 7.090" L (50.80mm x 180.08mm) - -
L70QS500.X Littelfuse Inc.

L70QS500.X

FUSE CRTRDGE 500A 700VAC/700VDC

Littelfuse Inc.

4,660
RFQ
L70QS500.X Datasheet

Datasheet

POWR-SPEED™ L70QS Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 500A 700 VAC 700 VDC Fast Blow Semiconductors - - CE, cURus, UR -55°C ~ 125°C 200kA AC, 50kA DC 2.000" Dia x 7.090" L (50.80mm x 180.08mm) - -
L70QS600.X Littelfuse Inc.

L70QS600.X

FUSE CRTRDGE 600A 700VAC/700VDC

Littelfuse Inc.

4,991
RFQ
L70QS600.X Datasheet

Datasheet

POWR-SPEED™ L70QS Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 600A 700 VAC 700 VDC Fast Blow Semiconductors - - CE, cURus, UR -55°C ~ 125°C 200kA AC, 50kA DC 2.000" Dia x 7.090" L (50.80mm x 180.08mm) - -
PSR073UL0800X Littelfuse Inc.

PSR073UL0800X

FUSES POWR-SPEED

Littelfuse Inc.

8,975
RFQ
PSR073UL0800X Datasheet

Datasheet

POWR-SPEED® PSR Rectangular, Blade Bulk Active Bolt Mount Square 800A 1.3 kVAC 1 kVDC Fast Blow Semiconductors Indicating - CE, cURus, UL -55°C ~ 125°C 100kA AC, 150kA DC 2.921" L x 2.894" W x 3.130" H (74.20mm x 73.50mm x 79.50mm) - -
L75QS600.X Littelfuse Inc.

L75QS600.X

750VDC HIGHSPEED SEMICONDUCTOR F

Littelfuse Inc.

3,904
RFQ
L75QS600.X Datasheet

Datasheet

POWR-SPEED® L75QS Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 600A - 750 VDC Fast Blow Electrical, Industrial - - CE, cURus, UL -55°C ~ 125°C 50kA 2.000" Dia x 2.844" L (50.80mm x 72.24mm) - -
PSX1XLFL0400X Littelfuse Inc.

PSX1XLFL0400X

FUSE SEMI 1500VDC 1XL SIZE 400A

Littelfuse Inc.

6,595
RFQ
PSX1XLFL0400X Datasheet

Datasheet

POWR-SPEED® PSX Rectangular Box Active Bolt Mount Square 400A - 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) - -
PSR073FS1250Z Littelfuse Inc.

PSR073FS1250Z

FUSES POWR-SPEED

Littelfuse Inc.

3,263
RFQ
PSR073FS1250Z Datasheet

Datasheet

POWR-SPEED® PSR Rectangular, Blade Bulk Active Requires Holder Square 1.25kA 1 kVAC - Fast Blow Semiconductors Indicating - CE, cURus, UL -55°C ~ 125°C 100kA 2.953" L x 2.894" W x 3.130" H (75.00mm x 73.50mm x 79.50mm) - -
LPJ-400SP Eaton - Bussmann Electrical Division

LPJ-400SP

FUSE CRTRDGE 400A 600VAC/300VDC

Eaton - Bussmann Electrical Division

4,561
RFQ
LPJ-400SP Datasheet

Datasheet

LOW-PEAK™ LPJ Cylindrical, Blade Terminal (Bolt) Bulk Active Bolt Mount Cartridge 400A 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) - -
LPJ-225SP Eaton - Bussmann Electrical Division

LPJ-225SP

FUSE CRTRDGE 225A 600VAC/300VDC

Eaton - Bussmann Electrical Division

2,532
RFQ
LPJ-225SP Datasheet

Datasheet

LOW-PEAK™ LPJ Cylindrical, Blade Terminal (Bolt) Bulk Active Bolt Mount Cartridge 225A 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) - -
KLPC800.X Littelfuse Inc.

KLPC800.X

FUSE CRTRDGE 800A 600VAC/480VDC

Littelfuse Inc.

3,435
RFQ
KLPC800.X Datasheet

Datasheet

POWR-GARD®, POWR-PRO® KLPC Cylindrical, Blade Terminal (Bolt) Box Active Bolt Mount Cartridge 800A 600 VAC 480 VDC Slow Blow Electrical, Industrial - L CE, CSA, UL - 200kA AC, 300kA DC 2.500" Dia x 3.752" L (63.50mm x 95.30mm) - -
PSX3XLFL1000X Littelfuse Inc.

PSX3XLFL1000X

FUSE SEMI 1500VDC 3XL SIZE 1000A

Littelfuse Inc.

2,492
RFQ
PSX3XLFL1000X Datasheet

Datasheet

POWR-SPEED® PSX Rectangular Box Active Bolt Mount Square 1kA - 1.5 kVDC Fast Blow Semiconductors Indicating - CE, cURus, UL -55°C ~ 125°C 200kA 5.043" L x 2.894" W x 3.130" H (128.10mm x 73.50mm x 79.50mm) - -
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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.