PTC Resettable Fuses, also known as polymeric positive temperature coefficient (PPTC) devices, play a critical role in circuit protection. These fuses allow for automatic reset after an overcurrent event, providing a reusable solution that reduces downtime and maintenance costs.
Commonly used in consumer electronics, automotive, and telecommunications, PTC resettable fuses limit current by increasing resistance when an overcurrent occurs, thereby protecting sensitive components from damage. Once the fault is cleared, the resistance decreases, allowing the circuit to resume normal operation.
Manufacturers like Littelfuse, Bel Fuse, and TE Connectivity offer a range of PTC resettable fuses designed to meet various voltage and current requirements. These versatile and reliable fuses ensure continuous protection and operational efficiency for a multitude of electronic applications.
| Select | Images | Part Number | Mfr | Description | Datasheet | Availability | Price | Qty | RFQ | Rohs | ECAD Model |
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Mfr. Part No. WS Part No. |
POLYSWITCH PTC RESET 4A HLD AMMO / PTC Resettable Fuse 4A(hold) 6.8A(trip) 16V 2.4W 1.7s 0.021Ohm Radial 8.9 X 3 X 12.8mm Ammo
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Low Stock |
MOQ: 915 |
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Mfr. Part No. WS Part No. |
PTC RESET FUSE 16V 3A RADIAL
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Low Stock |
MOQ: 90 |
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Mfr. Part No. WS Part No. |
POLYSWITCH PTC RESET 2.5A / PTC Resettable Fuse 2.5A(hold) 4.7A(trip) 16VDC 100A 1W 5s 0.022Ohm Radial 8.9 X 3 X 12.8mm T/R
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Low Stock |
MOQ: 495 |
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Mfr. Part No. WS Part No. |
POLYSWITCH PTC RESET 11A HLD / PTC Resettable Fuse 11A(hold) 18.7A(trip) 16VDC 100A 3.7W 7s 0.0037Ohm Radial 17.5 X 3 X 26mm T/R
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Low Stock |
MOQ: 21 |
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Mfr. Part No. WS Part No. |
PTC RESET FUSE 16V 11A RADIAL
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Low Stock |
MOQ: 45 |
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Mfr. Part No. WS Part No. |
PTC RESETTABLE 6V 1.50A SMD 1210
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Low Stock |
MOQ: 135 |
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Mfr. Part No. WS Part No. |
PTC RESET FUSE 30V 1.6A RADIAL / POLYFUSE Resettable PTCs
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Low Stock |
MOQ: 230 |
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Mfr. Part No. WS Part No. |
POLYSWITCH PTC RESET 7A / Radial PTC Resettable Fuse 30V
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Low Stock |
MOQ: 95 |
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Mfr. Part No. WS Part No. |
PTC 24V POLYFUSE SURF MOUNT 2016
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Low Stock |
MOQ: 0 |
Need to verify |
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Mfr. Part No. WS Part No. |
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Low Stock |
MOQ: 120 |
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Mfr. Part No. WS Part No. |
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Low Stock |
MOQ: 95 |
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Mfr. Part No. WS Part No. |
POLYSWITCH 0.145A HOLD UNENCAPS / PTC Resettable Fuse 0.145A(hold) 0.29A(trip) 60V 3A 1W 2s 3.5Ohm Radial 6 X 3.8 X 6mm Bulk/T/R
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Low Stock |
MOQ: 150 |
Need to verify |
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Mfr. Part No. WS Part No. |
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4,000 pieces In Stock |
MOQ: 450 |
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Mfr. Part No. WS Part No. |
POLYSWITCH RESETTABLE DEVICE SMD
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Low Stock |
MOQ: 190 |
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Mfr. Part No. WS Part No. |
Polymeric PTC Resettable Fuse 12V 2.6 A Ih Surface Mount 1812 (4532 Metric), Concave
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Low Stock |
MOQ: 1 |
Need to verify |
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Mfr. Part No. WS Part No. |
PTC RESET FUSE 72V 2.5A RADIAL
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260 pieces In Stock |
MOQ: 130 |
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Mfr. Part No. WS Part No. |
PTC RESET FUSE 6V 500MA 1210
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Low Stock |
MOQ: 305 |
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Mfr. Part No. WS Part No. |
Resettable Fuses - PPTC 16V 100A RLINE
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50,000 pieces In Stock |
MOQ: 110 |
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Mfr. Part No. WS Part No. |
POLYSWITCH PTC RESET 9A
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Low Stock |
MOQ: 20 |
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Mfr. Part No. WS Part No. |
PTC RESET FUSE 60V 3.75A RADIAL
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Low Stock |
MOQ: 11 |
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