PTC Resettable Fuses

Manufacturer Package/Case Series Packaging Product Status Type Voltage - Max Current - Hold (Ih) (Max) Current - Trip (It) Current - Max Time to Trip Resistance - Initial (Ri) (Min) Resistance - Post Trip (R1) (Max) Resistance - 25°C (Typ) Operating Temperature Grade Qualification Ratings Mounting Type Size / Dimension Height - Seated (Max) Thickness (Max) Lead Spacing






















































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































































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Photo Mfr. Part # Availability Price Quantity Datasheet Package/Case Series Packaging Product Status Type Voltage - Max Current - Hold (Ih) (Max) Current - Trip (It) Current - Max Time to Trip Resistance - Initial (Ri) (Min) Resistance - Post Trip (R1) (Max) Resistance - 25°C (Typ) Operating Temperature Grade Qualification Ratings Mounting Type Size / Dimension Height - Seated (Max) Thickness (Max) Lead Spacing
RXEF250-1 Littelfuse Inc.

RXEF250-1

PTC RESET FUSE 72V 2.5A RADIAL

Littelfuse Inc.

8,053
RFQ
RXEF250-1 Datasheet

Datasheet

Radial, Disc PolySwitch®, RXEF Bulk Obsolete Polymeric 72V 2.5 A 5 A 40 A 15.6 s 50 mOhms 130 mOhms - -40°C ~ 85°C - - - Through Hole 0.819" Dia x 0.118" T (20.80mm x 3.00mm) 1.000" (25.40mm) - 0.400" (10.15mm)
PRG21BC4R7MM1RK Murata Electronics

PRG21BC4R7MM1RK

PTC RESET FUSE

Murata Electronics

5,412
RFQ

-

- * Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
PRG21BC2R2MM1RK Murata Electronics

PRG21BC2R2MM1RK

PTC RESET FUSE

Murata Electronics

8,899
RFQ

-

- * Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
PRG21BC6R8MM1RK Murata Electronics

PRG21BC6R8MM1RK

PTC RESET FUSE

Murata Electronics

2,262
RFQ

-

- * Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
PRG21BC3R3MM1RK Murata Electronics

PRG21BC3R3MM1RK

PTC RESET FUSE

Murata Electronics

6,615
RFQ

-

- * Tape & Reel (TR) Active - - - - - - - - - - - - - - - - - -
TRF250-110U-2 Littelfuse Inc.

TRF250-110U-2

PTC RESET FUSE 60V 110MA RADIAL

Littelfuse Inc.

8,286
RFQ
TRF250-110U-2 Datasheet

Datasheet

Radial, Disc PolySwitch®, TRF250 Tape & Reel (TR) Obsolete Polymeric 60V (250V Int) 110 mA 220 mA 3 A 1.2 s 5 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.209" Dia x 0.150" T (5.30mm x 3.80mm) 0.370" (9.40mm) - 0.197" (5.00mm)
B59990C0080A051 EPCOS - TDK Electronics

B59990C0080A051

PTC RESET FUSE 80V 30MA RADIAL

EPCOS - TDK Electronics

3,588
RFQ
B59990C0080A051 Datasheet

Datasheet

Radial, Disc B59990 Tape & Reel (TR) Active Ceramic 80V 30 mA 60 mA 700 mA - - - 55 Ohms -40°C ~ 85°C - - - Through Hole 0.157" Dia x 0.138" T (4.00mm x 3.50mm) 0.295" (7.50mm) - 0.197" (5.00mm)
PTR060V0017-TR1 Eaton - Electronics Division

PTR060V0017-TR1

PTC RESET FUSE 60V 170MA RADIAL

Eaton - Electronics Division

7,081
RFQ
PTR060V0017-TR1 Datasheet

Datasheet

Radial, Disc PTR060V Tape & Reel (TR) Active Polymeric 60V 170 mA 340 mA 40 A 3 s 3.3 Ohms 8 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.118" T (7.40mm x 3.00mm) 0.500" (12.70mm) - 0.197" (5.00mm)
MF-R160-AP Bourns Inc.

MF-R160-AP

PTC RESET FUSE 30V 1.6A RADIAL

Bourns Inc.

6,641
RFQ
MF-R160-AP Datasheet

Datasheet

Radial, Disc Multifuse®, MF-R Tape & Box (TB) Active Polymeric 30V 1.6 A 3.2 A 40 A 8 s 55 mOhms 150 mOhms - -40°C ~ 85°C - - - Through Hole 0.402" Dia x 0.118" T (10.20mm x 3.00mm) 0.661" (16.80mm) - 0.201" (5.10mm)
MF-RX135/72-AP-14 Bourns Inc.

MF-RX135/72-AP-14

FUSE PTC RESETTABLE

Bourns Inc.

9,962
RFQ
MF-RX135/72-AP-14 Datasheet

Datasheet

Radial, Disc MF-RX/72 Tape & Box (TB) Active - 72V 1.35 A 2.7 A 40 A 9.6 s - - - - - - - Through Hole 0.483" L x 0.122" W (12.26mm x 3.10mm) 0.718" (18.26mm) - 0.201" (5.10mm)
MF-RX110/72-AP-14 Bourns Inc.

MF-RX110/72-AP-14

PTC RESET FUSE 72V 1.1A RADIAL

Bourns Inc.

3,887
RFQ
MF-RX110/72-AP-14 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Tape & Box (TB) Active Polymeric 72V 1.1 A 2.2 A 40 A 8.2 s 150 mOhms 380 mOhms - -40°C ~ 85°C - - - Through Hole 0.427" L x 0.122" W (10.84mm x 3.10mm) 0.663" (16.84mm) - 0.201" (5.10mm)
MF-RX090/72-AP-17 Bourns Inc.

MF-RX090/72-AP-17

PTC RESETTABLE 0.9A 72V RADIAL L

Bourns Inc.

3,551
RFQ
MF-RX090/72-AP-17 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Tape & Box (TB) Active Polymeric 72V 900 mA 1.8 A 40 A 7.2 s 140 mOhms 470 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.461" Dia x 0.122" T (11.70mm x 3.10mm) 0.657" (16.70mm) - 0.201" (5.10mm)
MF-RX075/72-AP-17 Bourns Inc.

MF-RX075/72-AP-17

PTC RESETTABLE 0.75A 72V RADIAL

Bourns Inc.

4,095
RFQ
MF-RX075/72-AP-17 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Tape & Box (TB) Active Polymeric 72V 750 mA 1.5 A 40 A 6.3 s 180 mOhms 600 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.409" Dia x 0.122" T (10.40mm x 3.10mm) 0.630" (16.00mm) - 0.201" (5.10mm)
MF-RX040/72-AP-17 Bourns Inc.

MF-RX040/72-AP-17

PTC RESETTABLE 0.4A 72V RADIAL L

Bourns Inc.

7,821
RFQ
MF-RX040/72-AP-17 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Tape & Box (TB) Active Polymeric 72V 400 mA 800 mA 40 A 3.9 s 520 mOhms 1.29 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.539" (13.70mm) - 0.201" (5.10mm)
MF-RX065/72-AP-17 Bourns Inc.

MF-RX065/72-AP-17

PTC RESETTABLE 0.65A 72V RADIAL

Bourns Inc.

8,822
RFQ
MF-RX065/72-AP-17 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Tape & Box (TB) Active Polymeric 72V 650 mA 1.3 A 40 A 5.3 s 270 mOhms 720 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.382" Dia x 0.122" T (9.70mm x 3.10mm) 0.598" (15.20mm) - 0.201" (5.10mm)
MF-RX065/72-2-17 Bourns Inc.

MF-RX065/72-2-17

PTC RESETTABLE 0.65A 72V RADIAL

Bourns Inc.

2,645
RFQ
MF-RX065/72-2-17 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Tape & Reel (TR) Active Polymeric 72V 650 mA 1.3 A 40 A 5.3 s 270 mOhms 720 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.382" Dia x 0.122" T (9.70mm x 3.10mm) 0.598" (15.20mm) - 0.201" (5.10mm)
MF-RX050/72-AP-17 Bourns Inc.

MF-RX050/72-AP-17

PTC RESETTABLE 0.5A 72V RADIAL L

Bourns Inc.

8,762
RFQ
MF-RX050/72-AP-17 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Tape & Box (TB) Active Polymeric 72V 500 mA 1 A 40 A 4 s 410 mOhms 1.17 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.311" Dia x 0.122" T (7.90mm x 3.10mm) 0.539" (13.70mm) - 0.201" (5.10mm)
MF-R160-0-17 Bourns Inc.

MF-R160-0-17

PTC RESETTABLE 1.6A 30V RADIAL L

Bourns Inc.

9,873
RFQ
MF-R160-0-17 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-R Bulk Active Polymeric 30V 1.6 A 3.2 A 40 A 8 s 55 mOhms 150 mOhms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.402" Dia x 0.118" T (10.20mm x 3.00mm) 0.661" (16.80mm) - 0.201" (5.10mm)
MF-RX040/72-2-17 Bourns Inc.

MF-RX040/72-2-17

PTC RESETTABLE 0.4A 72V RADIAL L

Bourns Inc.

5,079
RFQ
MF-RX040/72-2-17 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Tape & Reel (TR) Active Polymeric 72V 400 mA 800 mA 40 A 3.9 s 520 mOhms 1.29 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.539" (13.70mm) - 0.201" (5.10mm)
MF-RX050/72-2-17 Bourns Inc.

MF-RX050/72-2-17

PTC RESETTABLE 0.5A 72V RADIAL L

Bourns Inc.

9,778
RFQ
MF-RX050/72-2-17 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-RX/72 Tape & Reel (TR) Active Polymeric 72V 500 mA 1 A 40 A 4 s 410 mOhms 1.17 Ohms - -40°C ~ 85°C Automotive AEC-Q200 - Through Hole 0.311" Dia x 0.122" T (7.90mm x 3.10mm) 0.539" (13.70mm) - 0.201" (5.10mm)
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PTC Resettable 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 PTC Resettable 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 PTC Resettable 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.

PTC Resettable Fuses FAQ

Can FPGAX source both active and end-of-life PTC Resettable 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 PTC Resettable 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.