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PTC Resettable Fuses

PTC fuses are based on a unique positive coefficient material with exponentially increasing internal resistance due to overcurrent conditions and higher temperatures. During tripping, the high resistance provided by the fuse prevents current from flowing through the circuit until the overtemperature source is removed and falls below the design current/temperature limit. Once the fault current is removed or the ambient temperature cools, the fuse re-enters the conductive state, allowing current to flow through the circuit again.

Pictures Part Number Brand Stock Price Quantity Online Service
B59970C0120A053 B59970C0120A053 EPCOS (TDK) 0 $0.00
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MF-MSMD110-2 MF-MSMD110-2 Bourns Inc. 19300 $15.63
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MF-MSMD020-2 MF-MSMD020-2 Bourns Inc. 0 $0.00
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MF-MSMC110-2-1.1A MF-MSMC110-2-1.1A Bourns Inc. 0 $0.00
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MF-FSMF050X-2 MF-FSMF050X-2 Bourns Inc. 317504 $0.02
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MF-FSMF020X-2 MF-FSMF020X-2 Bourns Inc. 124600 $0.02
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LVR025K-2 LVR025K-2 Littelfuse Inc. 300000 $6.55
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B59970C0120A051 B59970C0120A051 EPCOS (TDK) 0 $0.00
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B59751B120A70 B59751B120A70 EPCOS (TDK) 9400 $12.21
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FSMD250-2920-R FSMD250-2920-R Fuzetec 0 $0.00
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FSMD250-2920 FSMD250-2920 Fuzetec 4000 $5.62
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FSMD200R FSMD200R Fuzetec 2000 $2.80
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FSMD200-2920-R FSMD200-2920-R Fuzetec 5940 $0.16
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FSMD100-2920-R FSMD100-2920-R Fuzetec 61450 $0.11
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FSMD100-2920 FSMD100-2920 Fuzetec 4300 $0.11
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FSMD100-1206R FSMD100-1206R Fuzetec 0 $0.00
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FSMD050-1206-R FSMD050-1206-R Fuzetec 262600 $0.04
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FSMD050-1206 FSMD050-1206 Fuzetec 4150 $0.05
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FSMD050-0805R FSMD050-0805R Fuzetec 0 $0.00
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FSMD010-1206-R FSMD010-1206-R Fuzetec 143400 $0.04
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