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
PTGL12AS4R7K6B51B0 Murata Electronics

PTGL12AS4R7K6B51B0

PTC RESET FUSE 140V 393MA RADIAL

Murata Electronics

6,879
RFQ
PTGL12AS4R7K6B51B0 Datasheet

Datasheet

Radial, Disc POSISTOR®, PTGL Bulk Obsolete Ceramic 140V 393 mA 523 mA 3.5 A - - - 4.7 Ohms -30°C ~ 85°C - - - Through Hole 0.453" Dia x 0.138" T (11.50mm x 3.50mm) 0.650" (16.50mm) - 0.197" (5.00mm)
AHRF250 Littelfuse Inc.

AHRF250

PTC RESET FUSE 16V 2.5A RADIAL

Littelfuse Inc.

9,282
RFQ
AHRF250 Datasheet

Datasheet

Radial, Disc PolySwitch®, AHRF Bulk Active Polymeric 16V 2.5 A - 100 A - - - - -40°C ~ 125°C Automotive AEC-Q200 - Through Hole - - - -
LR4-73XF Littelfuse Inc.

LR4-73XF

PTC RESET FUSE 730MA STRAP

Littelfuse Inc.

7,773
RFQ

-

Strap PolySwitch®, LR4 Bulk Active Polymeric - 730 mA - 100 A - - - - -40°C ~ 85°C - - - User Defined 1.831" L x 0.323" W (46.50mm x 8.20mm) - 0.039" (1.00mm) -
LVR040K-1 Littelfuse Inc.

LVR040K-1

PTC RESET FUSE 240V 400MA RADIAL

Littelfuse Inc.

9,021
RFQ
LVR040K-1 Datasheet

Datasheet

Radial, Disc PolySwitch®, LVR Bulk Active Polymeric 240V (265V Int) 400 mA 900 mA 5.5 A 24 s 600 mOhms 1.9 Ohms - -20°C ~ 85°C - - - Through Hole 0.453" L x 0.150" W (11.50mm x 3.80mm) 0.823" (20.90mm) - 0.200" (5.08mm)
TS250-130F-RC-2 Littelfuse Inc.

TS250-130F-RC-2

PTC RESET FUSE 60V 130MA 2SMD

Littelfuse Inc.

3,787
RFQ
TS250-130F-RC-2 Datasheet

Datasheet

2-SMD PolySwitch®, TS250 Tape & Reel (TR) Active Polymeric 60V (600V Int) 130 mA 260 mA 1 A 2 s 7 Ohms 17 Ohms - -40°C ~ 85°C - - - Surface Mount 0.352" L x 0.291" W (8.95mm x 7.40mm) - 0.134" (3.40mm) -
VTP170SSF Littelfuse Inc.

VTP170SSF

PTC RESET FUSE 16V 1.7A STRAP

Littelfuse Inc.

5,871
RFQ
VTP170SSF Datasheet

Datasheet

Strap PolySwitch®, VTP Bulk Active Polymeric 16V 1.7 A 3.4 A 100 A 5 s 30 mOhms 105 mOhms - -40°C ~ 85°C - - - User Defined 0.648" L x 0.283" W (16.45mm x 7.20mm) - 0.032" (0.80mm) -
VTP/200GF Littelfuse Inc.

VTP/200GF

PTC RESET FUSE 16V 2A STRAP

Littelfuse Inc.

7,994
RFQ

-

Strap PolySwitch®, VTP Bulk Active Polymeric 16V 2 A 4.7 A 100 A 5 s 22 mOhms 78 mOhms - - - - - User Defined 0.909" L x 0.177" W (23.10mm x 4.50mm) - 0.032" (0.80mm) -
06R155BU Littelfuse Inc.

06R155BU

PTC RESET FUSE 6V 1.55A RADIAL

Littelfuse Inc.

4,359
RFQ
06R155BU Datasheet

Datasheet

Radial, Disc POLY-FUSE®, USBR Bulk Obsolete Polymeric 6V 1.55 A 2.7 A 40 A 2.2 s 40 mOhms 100 mOhms - -40°C ~ 85°C - - - Through Hole 0.272" Dia x 0.118" T (6.90mm x 3.00mm) 0.449" (11.40mm) - 0.201" (5.10mm)
06R120BU Littelfuse Inc.

06R120BU

PTC RESET FUSE 6V 1.2A RADIAL

Littelfuse Inc.

3,815
RFQ
06R120BU Datasheet

Datasheet

Radial, Disc POLY-FUSE®, USBR Bulk Obsolete Polymeric 6V 1.2 A 2 A 40 A 500 ms 65 mOhms 140 mOhms - -40°C ~ 85°C - - - Through Hole 0.272" Dia x 0.118" T (6.90mm x 3.00mm) 0.449" (11.40mm) - 0.201" (5.10mm)
06R075BU Littelfuse Inc.

06R075BU

PTC RESET FUSE 6V 750MA RADIAL

Littelfuse Inc.

3,997
RFQ
06R075BU Datasheet

Datasheet

Radial, Disc POLY-FUSE®, USBR Bulk Obsolete Polymeric 6V 750 mA 1.3 A 40 A 400 ms 100 mOhms 230 mOhms - -40°C ~ 85°C - - - Through Hole 0.272" Dia x 0.118" T (6.90mm x 3.00mm) 0.449" (11.40mm) - 0.201" (5.10mm)
250R120-R1ZR Littelfuse Inc.

250R120-R1ZR

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

6,541
RFQ
250R120-R1ZR Datasheet

Datasheet

Radial, Disc POLY-FUSE®, 250R Tape & Box (TB) Obsolete Polymeric 60V (250V Int) 120 mA 240 mA 3 A 2.5 s 6 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.201" (5.10mm)
250R120-R3U Littelfuse Inc.

250R120-R3U

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

2,714
RFQ
250R120-R3U Datasheet

Datasheet

Radial, Disc POLY-FUSE®, 250R Bulk Obsolete Polymeric 60V (250V Int) 120 mA 240 mA 3 A 2.5 s 8 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.201" (5.10mm)
250R120-R2U Littelfuse Inc.

250R120-R2U

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

7,946
RFQ
250R120-R2U Datasheet

Datasheet

Radial, Disc POLY-FUSE®, 250R Bulk Obsolete Polymeric 60V (250V Int) 120 mA 240 mA 3 A 2.5 s 8 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.201" (5.10mm)
250R120-RAU Littelfuse Inc.

250R120-RAU

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

5,591
RFQ
250R120-RAU Datasheet

Datasheet

Radial, Disc POLY-FUSE®, 250R Bulk Obsolete Polymeric 60V (250V Int) 120 mA 240 mA 3 A 2.5 s 7 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.201" (5.10mm)
250R120-R3ZR Littelfuse Inc.

250R120-R3ZR

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

2,117
RFQ
250R120-R3ZR Datasheet

Datasheet

Radial, Disc POLY-FUSE®, 250R Tape & Box (TB) Obsolete Polymeric 60V (250V Int) 120 mA 240 mA 3 A 2.5 s 8 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.201" (5.10mm)
250R120TZR Littelfuse Inc.

250R120TZR

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

7,813
RFQ
250R120TZR Datasheet

Datasheet

Radial, Disc POLY-FUSE®, 250R Tape & Box (TB) Obsolete Polymeric 60V (250V Int) 120 mA 240 mA 3 A 2.5 s 7 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.201" (5.10mm)
250R145-RAU Littelfuse Inc.

250R145-RAU

PTC RESET FUSE 60V 145MA RADIAL

Littelfuse Inc.

6,714
RFQ
250R145-RAU Datasheet

Datasheet

Radial, Disc POLY-FUSE®, 250R Bulk Obsolete Polymeric 60V (250V Int) 145 mA 290 mA 3 A 2.5 s 3 Ohms 12 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.201" (5.10mm)
250R120TU Littelfuse Inc.

250R120TU

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

8,131
RFQ
250R120TU Datasheet

Datasheet

Radial, Disc POLY-FUSE®, 250R Bulk Obsolete Polymeric 60V (250V Int) 120 mA 240 mA 3 A 2.5 s 7 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.201" (5.10mm)
250R120-RFZR Littelfuse Inc.

250R120-RFZR

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

2,516
RFQ
250R120-RFZR Datasheet

Datasheet

Radial, Disc POLY-FUSE®, 250R Tape & Box (TB) Obsolete Polymeric 60V (250V Int) 120 mA 240 mA 3 A 2.5 s 6 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 0.201" (5.10mm)
250R120-RFU Littelfuse Inc.

250R120-RFU

PTC RESET FUSE 60V 120MA RADIAL

Littelfuse Inc.

2,184
RFQ
250R120-RFU Datasheet

Datasheet

Radial, Disc POLY-FUSE®, 250R Bulk Obsolete Polymeric 60V (250V Int) 120 mA 240 mA 3 A 2.5 s 6 Ohms 16 Ohms - -40°C ~ 85°C - - - Through Hole 0.256" L x 0.181" W (6.50mm x 4.60mm) 0.433" (11.00mm) - 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.