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
HSJ20 Mersen USA Newburyport-MA L.L.C.

HSJ20

FUSE,CLASS J,HIGH SPEED,200KA AC

Mersen USA Newburyport-MA L.L.C.

2,445
RFQ
HSJ20 Datasheet

Datasheet

HSJ Cartridge, Non-Standard Box Active Requires Holder Cartridge 20A 600 VAC 500 VDC Fast Blow Electrical, Industrial - J CSA, UL - 200kA AC, 100kA DC 0.827" Dia x 2.244" L (21.00mm x 57.00mm) - -
HSJ25 Mersen USA Newburyport-MA L.L.C.

HSJ25

600V 25A CLASS J HS FUSE

Mersen USA Newburyport-MA L.L.C.

4,508
RFQ
HSJ25 Datasheet

Datasheet

HSJ Cartridge, Non-Standard Box Active Requires Holder Cartridge 25A 600 VAC 500 VDC Fast Blow Electrical, Industrial - J CSA, UL - 200kA AC, 100kA DC 0.827" Dia x 2.244" L (21.00mm x 57.00mm) - -
KLKR025.TS Littelfuse Inc.

KLKR025.TS

FUSE CARTRIDGE 25A 600VAC/300VDC

Littelfuse Inc.

2,498
RFQ
KLKR025.TS Datasheet

Datasheet

POWR-GARD® KLKR 5AG, 10mm x 38mm (Midget) Box Active Requires Holder Cartridge 25A 600 VAC 300 VDC Fast Blow Motor Protection - CC CE, CSA, UL - 200kA AC, 20kA DC 0.406" Dia x 1.500" L (10.30mm x 38.10mm) - -
ATQR7-1/2 Mersen USA Newburyport-MA L.L.C.

ATQR7-1/2

FUSE; TIME-DELAY; CLASS CC; 200K

Mersen USA Newburyport-MA L.L.C.

2,001
RFQ
ATQR7-1/2 Datasheet

Datasheet

ATQR 5AG, 10mm x 38.1mm Box Active Requires Holder Cartridge 7.5A 600 VAC 300 VDC Slow Blow Electrical, Industrial - CC CE, CSA, UR - 200kA AC, 100kA DC 0.409" Dia x 1.500" L (10.40mm x 38.10mm) - -
ATQR2-1/4 Mersen USA Newburyport-MA L.L.C.

ATQR2-1/4

FUSE; TIME-DELAY; CLASS CC; 200K

Mersen USA Newburyport-MA L.L.C.

2,521
RFQ
ATQR2-1/4 Datasheet

Datasheet

ATQR 5AG, 10mm x 38.1mm Box Active Requires Holder Cartridge 2.25A 600 VAC - Slow Blow Electrical, Industrial - CC CE, CSA, UR - 200kA AC, 100kA DC 0.409" Dia x 1.500" L (10.40mm x 38.10mm) - -
FRN-R-6 Eaton - Bussmann Electrical Division

FRN-R-6

FUSE CARTRIDGE 6A 250VAC/125VDC

Eaton - Bussmann Electrical Division

1,616
RFQ
FRN-R-6 Datasheet

Datasheet

Fusetron™ FRN-R Cartridge, Non-Standard Bulk Active Requires Holder Cartridge 6A 250 VAC 125 VDC Slow Blow Electrical, Industrial - RK5 CE, CSA, UL - 200kA AC, 20kA DC 0.560" Dia x 2.000" L (14.22mm x 50.80mm) - -
AJT2N Mersen USA Newburyport-MA L.L.C.

AJT2N

600V 2A J TD NON-IND

Mersen USA Newburyport-MA L.L.C.

1,672
RFQ
AJT2N Datasheet

Datasheet

AJT Cartridge, Non-Standard Box Active Requires Holder Cartridge 2A 600 VAC 500 VDC Slow Blow Electrical, Industrial - J CSA, UL - 200kA AC, 100kA DC 0.827" Dia x 2.244" L (21.00mm x 57.00mm) - -
AJT1-1/4N Mersen USA Newburyport-MA L.L.C.

AJT1-1/4N

600V 1.25A J TD NON-IND

Mersen USA Newburyport-MA L.L.C.

3,250
RFQ
AJT1-1/4N Datasheet

Datasheet

AJT Cartridge, Non-Standard Box Active Requires Holder Cartridge 1.25A 600 VAC 500 VDC Slow Blow Electrical, Industrial - J CSA, UL - 200kA AC, 100kA DC 0.827" Dia x 2.244" L (21.00mm x 57.00mm) - -
ATQR1-1/4 Mersen USA Newburyport-MA L.L.C.

ATQR1-1/4

FUSE; TIME-DELAY; CLASS CC; 200K

Mersen USA Newburyport-MA L.L.C.

1,588
RFQ
ATQR1-1/4 Datasheet

Datasheet

ATQR 5AG, 10mm x 38.1mm Box Active Requires Holder Cartridge 1.125A 600 VAC - Slow Blow Electrical, Industrial - CC CE, CSA, UR - 200kA AC, 100kA DC 0.409" Dia x 1.500" L (10.40mm x 38.10mm) - -
ATQR6/10 Mersen USA Newburyport-MA L.L.C.

ATQR6/10

600V 6/10A CC TD FUSE

Mersen USA Newburyport-MA L.L.C.

1,192
RFQ
ATQR6/10 Datasheet

Datasheet

ATQR 5AG, 10mm x 38.1mm Box Active Requires Holder Cartridge 600mA 600 VAC - Slow Blow Electrical, Industrial - CC CE, CSA, UR - 200kA AC, 100kA DC 0.409" Dia x 1.500" L (10.40mm x 38.10mm) - -
ATQR3/4 Mersen USA Newburyport-MA L.L.C.

ATQR3/4

FUSE; TIME-DELAY; CLASS CC; 200K

Mersen USA Newburyport-MA L.L.C.

3,537
RFQ
ATQR3/4 Datasheet

Datasheet

ATQR 5AG, 10mm x 38.1mm Box Active Requires Holder Cartridge 750mA 600 VAC - Slow Blow Electrical, Industrial - CC CE, CSA, UR - 200kA AC, 100kA DC 0.409" Dia x 1.500" L (10.40mm x 38.10mm) - -
A4J3 Mersen USA Newburyport-MA L.L.C.

A4J3

FUSE,CLASS J,HIGH SPEED,200KA AC

Mersen USA Newburyport-MA L.L.C.

1,359
RFQ
A4J3 Datasheet

Datasheet

A4J Cartridge, Non-Standard Box Active Requires Holder Cartridge 3A 600 VAC 300 VDC Fast Blow Electrical, Industrial - J CSA, UL - 200kA AC, 100kA DC 0.827" Dia x 2.244" L (21.00mm x 57.00mm) - -
ATQR9 Mersen USA Newburyport-MA L.L.C.

ATQR9

CC TD FUSE 600V 9A ATQR

Mersen USA Newburyport-MA L.L.C.

4,776
RFQ
ATQR9 Datasheet

Datasheet

ATQR 5AG, 10mm x 38.1mm Box Active Requires Holder Cartridge 9A 600 VAC 300 VDC Slow Blow Electrical, Industrial - CC CE, CSA, UR - 200kA AC, 100kA DC 0.409" Dia x 1.500" L (10.40mm x 38.10mm) - -
AJT4-1/2N Mersen USA Newburyport-MA L.L.C.

AJT4-1/2N

600V 4.5A J TD NON-IND

Mersen USA Newburyport-MA L.L.C.

2,806
RFQ
AJT4-1/2N Datasheet

Datasheet

AJT Cartridge, Non-Standard Box Active Requires Holder Cartridge 4.5A 600 VAC 500 VDC Slow Blow Electrical, Industrial - J CSA, UL - 200kA AC, 100kA DC 0.827" Dia x 2.244" L (21.00mm x 57.00mm) - -
AJT3-1/2N Mersen USA Newburyport-MA L.L.C.

AJT3-1/2N

600V 3.5A J TD NON-IND

Mersen USA Newburyport-MA L.L.C.

2,702
RFQ
AJT3-1/2N Datasheet

Datasheet

AJT Cartridge, Non-Standard Box Active Requires Holder Cartridge 3.5A 600 VAC 500 VDC Slow Blow Electrical, Industrial - J CSA, UL - 200kA AC, 100kA DC 0.827" Dia x 2.244" L (21.00mm x 57.00mm) - -
AJT4N Mersen USA Newburyport-MA L.L.C.

AJT4N

600V 4A J TD NON-IND

Mersen USA Newburyport-MA L.L.C.

4,195
RFQ
AJT4N Datasheet

Datasheet

AJT Cartridge, Non-Standard Box Active Requires Holder Cartridge 4A 600 VAC 500 VDC Slow Blow Electrical, Industrial - J CSA, UL - 200kA AC, 100kA DC 0.827" Dia x 2.244" L (21.00mm x 57.00mm) - -
A6D8R Mersen USA Newburyport-MA L.L.C.

A6D8R

600V 8A RK1 TD FUSE

Mersen USA Newburyport-MA L.L.C.

4,092
RFQ
A6D8R Datasheet

Datasheet

A6D-R Cartridge, Non-Standard Box Active Requires Holder Cartridge 8A 600 VAC 600 VDC Slow Blow Electrical, Industrial - RK1 CSA, UL - 200kA AC, 100kA DC 0.811" Dia x 5.000" L (20.60mm x 127.00mm) - -
A6D3R Mersen USA Newburyport-MA L.L.C.

A6D3R

600V 3A RK1 TD FUSE

Mersen USA Newburyport-MA L.L.C.

3,354
RFQ
A6D3R Datasheet

Datasheet

A6D-R Cartridge, Non-Standard Box Active Requires Holder Cartridge 3A 600 VAC 600 VDC Slow Blow Electrical, Industrial - RK1 CSA, UL - 200kA AC, 100kA DC 0.811" Dia x 5.000" L (20.60mm x 127.00mm) - -
A6D5R Mersen USA Newburyport-MA L.L.C.

A6D5R

600V 5A RK1 TD FUSE

Mersen USA Newburyport-MA L.L.C.

3,497
RFQ
A6D5R Datasheet

Datasheet

A6D-R Cartridge, Non-Standard Box Active Requires Holder Cartridge 5A 600 VAC 600 VDC Slow Blow Electrical, Industrial - RK1 CSA, UL - 200kA AC, 100kA DC 0.811" Dia x 5.000" L (20.60mm x 127.00mm) - -
A6D6R Mersen USA Newburyport-MA L.L.C.

A6D6R

600V 6A RK1 TD FUSE

Mersen USA Newburyport-MA L.L.C.

2,421
RFQ
A6D6R Datasheet

Datasheet

A6D-R Cartridge, Non-Standard Box Active Requires Holder Cartridge 6A 600 VAC 600 VDC Slow Blow Electrical, Industrial - RK1 CSA, UL - 200kA AC, 100kA DC 0.811" Dia x 5.000" L (20.60mm x 127.00mm) - -
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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.