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
LVR075S-1 Littelfuse Inc.

LVR075S-1

PTC RESET FUSE 240V 750MA RADIAL

Littelfuse Inc.

9,034
RFQ
LVR075S-1 Datasheet

Datasheet

Radial, Disc PolySwitch®, LVR Bulk Obsolete Polymeric 240V (265V Int) 750 mA 1.5 A 7.5 A 18 s 316 mOhms 839 mOhms - -20°C ~ 85°C - - - Through Hole 0.450" L x 0.189" W (11.43mm x 4.80mm) 0.921" (23.40mm) - 0.200" (5.08mm)
TRF250-055T Littelfuse Inc.

TRF250-055T

PTC RESET FUSE 60V 55MA RADIAL

Littelfuse Inc.

9,520
RFQ
TRF250-055T Datasheet

Datasheet

Radial, Disc PolySwitch®, TRF250 Bulk Active Polymeric 60V (250V Int) 55 mA 170 mA 3 A 3.5 s 15 Ohms 35 Ohms - -40°C ~ 85°C - - - Through Hole 0.228" Dia x 0.181" T (5.80mm x 4.60mm) 0.390" (9.90mm) - 0.197" (5.00mm)
MXP180 Littelfuse Inc.

MXP180

PTC RESET FUSE 6V 1.8A STRAP

Littelfuse Inc.

2,496
RFQ

-

Strap PolySwitch®, MXP Bulk Obsolete Polymeric 6V 1.8 A 5.2 A 50 A 5 s 7 mOhms 24 mOhms - - - - - User Defined - 0.043" (1.10mm) - -
MXP270 Littelfuse Inc.

MXP270

PTC RESET FUSE 6V 2.7A STRAP

Littelfuse Inc.

5,923
RFQ

-

Strap PolySwitch®, MXP Bulk Obsolete Polymeric 6V 2.7 A 6.2 A 50 A 2 s 6 mOhms 26 mOhms - - - - - User Defined - 0.043" (1.10mm) - -
MGP500 Littelfuse Inc.

MGP500

PTC RESET FUSE 6V 5A STRAP

Littelfuse Inc.

4,129
RFQ

-

Strap PolySwitch®, MGP Bulk Obsolete Polymeric 6V 5 A 9.2 A 50 A 5 s 2.5 mOhms 13 mOhms - - - - - User Defined 0.591" L x 0.122" W (15.00mm x 3.11mm) 0.037" (0.95mm) - -
FEMTOSMDC035F-2 Littelfuse Inc.

FEMTOSMDC035F-2

PTC RESET FUSE 6V 350MA 0603

Littelfuse Inc.

8,874
RFQ
FEMTOSMDC035F-2 Datasheet

Datasheet

0603 (1608 Metric), Concave PolySwitch®, femtoSMDC Tape & Reel (TR) Discontinued at Digi-Key Polymeric 6V 350 mA 700 mA 40 A 100 ms 280 mOhms 1 Ohms - - - - - Surface Mount 0.063" L x 0.032" W (1.60mm x 0.80mm) - 0.037" (0.95mm) -
MF-NSML380-2 Bourns Inc.

MF-NSML380-2

PTC RESET FUSE 6V 3.8A 1206

Bourns Inc.

5,983
RFQ

-

1206 (3216 Metric), Concave Multifuse®, MF-NSML Tape & Reel (TR) Obsolete Polymeric 6V 3.8 A 8 A 50 A 5 s 1.5 mOhms 14 mOhms - -40°C ~ 85°C - - - Surface Mount 0.128" L x 0.063" W (3.25mm x 1.60mm) - 0.024" (0.60mm) -
MF-USML450-2 Bourns Inc.

MF-USML450-2

PTC RESET FUSE 6V 4.5A 1210

Bourns Inc.

9,295
RFQ
MF-USML450-2 Datasheet

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USML Tape & Reel (TR) Obsolete Polymeric 6V 4.5 A 9 A 50 A 2 s 1 mOhms 15 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.047" (1.20mm) -
MF-USML500-2 Bourns Inc.

MF-USML500-2

PTC RESET FUSE 6V 5A 1210

Bourns Inc.

2,528
RFQ
MF-USML500-2 Datasheet

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USML Tape & Reel (TR) Obsolete Polymeric 6V 5 A 10 A 50 A 2 s 1 mOhms 14.5 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.047" (1.20mm) -
MF-USML200-2 Bourns Inc.

MF-USML200-2

PTC RESET FUSE 6V 2A 1210

Bourns Inc.

6,755
RFQ
MF-USML200-2 Datasheet

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USML Tape & Reel (TR) Obsolete Polymeric 6V 2 A 4 A 50 A 3 s 5 mOhms 30 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.024" (0.60mm) -
MF-USML250-2 Bourns Inc.

MF-USML250-2

PTC RESET FUSE 6V 2.5A 1210

Bourns Inc.

8,190
RFQ
MF-USML250-2 Datasheet

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USML Tape & Reel (TR) Obsolete Polymeric 6V 2.5 A 5 A 50 A 3.5 s 4.5 mOhms 22 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.024" (0.60mm) -
MF-USML350-2 Bourns Inc.

MF-USML350-2

PTC RESET FUSE 6V 3.5A 1210

Bourns Inc.

2,685
RFQ
MF-USML350-2 Datasheet

Datasheet

1210 (3225 Metric), Concave Multifuse®, MF-USML Tape & Reel (TR) Obsolete Polymeric 6V 3.5 A 7 A 50 A 2 s 3 mOhms 18 mOhms - -40°C ~ 85°C - - - Surface Mount 0.127" L x 0.102" W (3.22mm x 2.58mm) - 0.024" (0.60mm) -
B59673A0100B110 EPCOS - TDK Electronics

B59673A0100B110

PTC RESET FUSE

EPCOS - TDK Electronics

2,855
RFQ

-

- - Bulk Obsolete - - - - - - - - - - - - - - - - - -
PTGL04BD102N9N54B0 Murata Electronics

PTGL04BD102N9N54B0

PTC RESET FUSE RADIAL DISC

Murata Electronics

4,224
RFQ
PTGL04BD102N9N54B0 Datasheet

Datasheet

Radial, Disc POSISTOR®, PTGL Bulk Obsolete Ceramic - - - - - - - 1 kOhms -10°C ~ 60°C - - - Through Hole - - - -
MF-R010-0-A0 Bourns Inc.

MF-R010-0-A0

PTC RESET FUSE 60V 100MA RADIAL

Bourns Inc.

2,552
RFQ
MF-R010-0-A0 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-R Bulk Active Polymeric 60V 100 mA 200 mA 40 A 4 s 2.5 Ohms 7.5 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.500" (12.70mm) - 0.201" (5.10mm)
MF-R400-0-15 Bourns Inc.

MF-R400-0-15

PTC RESET FUSE 30V 4A RADIAL

Bourns Inc.

6,088
RFQ
MF-R400-0-15 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-R Bulk Active Polymeric 30V 4 A 8 A 40 A 12.7 s 10 mOhms 50 mOhms - -40°C ~ 85°C - - - Through Hole 0.567" L x 0.118" W (14.40mm x 3.00mm) 0.976" (24.80mm) - 0.201" (5.10mm)
MF-R075-2-14-99 Bourns Inc.

MF-R075-2-14-99

PTC RESET FUSE 60V 750MA RADIAL

Bourns Inc.

4,785
RFQ
MF-R075-2-14-99 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-R Tape & Reel (TR) Obsolete Polymeric 60V 750 mA 1.5 A 40 A 6.3 s 180 mOhms 600 mOhms - -40°C ~ 85°C - - - Through Hole 0.409" Dia x 0.122" T (10.40mm x 3.10mm) 0.630" (16.00mm) - 0.201" (5.10mm)
MF-R300-2-14-99 Bourns Inc.

MF-R300-2-14-99

PTC RESET FUSE 30V 3A RADIAL

Bourns Inc.

3,661
RFQ
MF-R300-2-14-99 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-R Tape & Reel (TR) Obsolete Polymeric 30V 3 A 6 A 40 A 10.8 s 20 mOhms 80 mOhms - -40°C ~ 85°C - - - Through Hole 0.472" L x 0.118" W (12.00mm x 3.00mm) 0.720" (18.30mm) - 0.201" (5.10mm)
MF-R400-2-14-99 Bourns Inc.

MF-R400-2-14-99

PTC RESET FUSE 30V 4A RADIAL

Bourns Inc.

9,952
RFQ
MF-R400-2-14-99 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-R Tape & Reel (TR) Obsolete Polymeric 30V 4 A 8 A 40 A 12.7 s 10 mOhms 50 mOhms - -40°C ~ 85°C - - - Through Hole 0.567" L x 0.118" W (14.40mm x 3.00mm) 0.976" (24.80mm) - 0.201" (5.10mm)
MF-R010-0-A0-99 Bourns Inc.

MF-R010-0-A0-99

PTC RESET FUSE 60V 100MA RADIAL

Bourns Inc.

4,777
RFQ
MF-R010-0-A0-99 Datasheet

Datasheet

Radial, Disc Multifuse®, MF-R Bulk Obsolete Polymeric 60V 100 mA 200 mA 40 A 4 s 2.5 Ohms 7.5 Ohms - -40°C ~ 85°C - - - Through Hole 0.291" Dia x 0.122" T (7.40mm x 3.10mm) 0.500" (12.70mm) - 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.