PTC Fuses for AC/DC Power Supplies

A Positive Thermal Coefficient fuse, or PTC thermistor, is a thermally sensitive semiconductor resistor that increases in resistance as temperature increases to limit current to a load. When the voltage input for a power supply is too far above or below what is specified, the excess current can damage components. Besides shutting down the power supply altogether, one can effectively limit the current by using the predictable resistive response of a PTC.

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Resultados: 122
Seleccionar Imagen N.° de pieza Fabricante: Descripción Hoja de datos Disponibilidad Precio: (USD) Filtre los resultados en la tabla por precio unitario en función de su cantidad. Cantidad RoHS Modelo ECAD Serie Estilo de montaje Estilo de terminación Corriente de retención Voltaje máximo Corriente de disparo Valor nominal de corriente - Máx. Resistencia Paquete / Cubierta Temperatura de trabajo mínima Temperatura de trabajo máxima Espaciado de conductor Calificación Empaquetado
Littelfuse Fusibles reajustables - PPTC 1.85A 33V 2920 43,133En existencias
40,500Se espera el 01/12/2026
Cinta cortada
$1.07
$0.933
$0.81
$0.748
Envase tipo carrete
$0.429
Ver
Min.: 1
Mult.: 1
: 1,500
2920L SMD/SMT SMD/SMT 1.85 A 33 VDC 3.7 A 40 A 150 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Fusibles reajustables - PPTC 72V 1.6A-HD 40A MAX 11,122En existencias
$0.442
$0.402
$0.359
$0.352
Ver
Min.: 1
Mult.: 1
MF-RX/72 PCB Mount Radial 1.6 A 72 VDC 3.2 A 40 A 140 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Fusibles reajustables - PPTC 250V 130MA-HD 3A MAX 20,074En existencias
Cinta cortada
$1.76
$1.33
$1.09
$1.00
Ver
Envase tipo carrete
$0.634
Min.: 1
Mult.: 1
: 4,000
MF-SD/250 PCB Mount SMD/SMT 130 mA 60 VDC 260 mA 3 A 7 Ohms - 45 C + 85 C Reel, Cut Tape, MouseReel
Bourns Fusibles reajustables - PPTC 24V 1.8A-HD 100A MAX 13,377En existencias
$0.611
$0.551
$0.486
$0.456
Ver
Min.: 1
Mult.: 1
MF-LS Strap Mount Axial 1.8 A 24 VDC 3.8 A 100 A 68 mOhms - 40 C + 85 C Bulk
Littelfuse Fusibles reajustables - PPTC PTC POLYFUSE RADIAL 72V 1.85A 3,462En existencias
$2.31
$2.15
$1.78
$1.64
Envase tipo carrete
$1.05
Ver
Min.: 1
Mult.: 1
: 1,000
72R PCB Mount Radial 1.85 A 72 VDC 3.7 A 40 A 190 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Fusibles reajustables - PPTC 9A 30V 100A Imax 16,667En existencias
$1.50
$1.19
$1.05
$0.978
Ver
Min.: 1
Mult.: 1
RUEF PCB Mount Radial 9 A 30 VDC 18 A 100 A 20 mOhms - 40 C + 85 C 10.9 mm Bulk
Bourns Fusibles reajustables - PPTC RESETTABLE FUSE 230VOLT 10OHM 9,033En existencias
$0.78
$0.706
$0.625
$0.588
Ver
Min.: 1
Mult.: 1
CMF-RL PCB Mount Radial 150 mA 60 VDC 300 mA 3 A 10 Ohms - 40 C + 125 C 5 mm Tray
Littelfuse Fusibles reajustables - PPTC .1A 60V Mini SMD AEC-Q200 9,888En existencias
Cinta cortada
$0.845
$0.772
$0.644
$0.571
Envase tipo carrete
$0.358
Ver
Min.: 1
Mult.: 1
: 2,000
miniASMD SMD/SMT SMD/SMT 100 mA 60 VDC 300 mA 40 A 12.7 Ohms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Fusibles reajustables - PPTC 1.1A 16V Mini SMD AEC-Q200 3,988En existencias
Cinta cortada
$0.585
$0.523
$0.462
$0.433
Ver
Envase tipo carrete
$0.385
Min.: 1
Mult.: 1
: 2,000
miniASMD SMD/SMT SMD/SMT 1.1 A 16 VDC 2.2 A 100 A 180 mOhms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Fusibles reajustables - PPTC PTC 16V 10A POLY RADIAL LEADS 1,466En existencias
Cinta cortada
$1.90
$1.63
$1.48
$1.33
Envase tipo carrete
$1.01
Ver
Min.: 1
Mult.: 1
: 1,000
16R PCB Mount Radial 10 A 16 VDC 17 A 100 A 10.2 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Littelfuse Fusibles reajustables - PPTC 60V .170A RADIAL LEADS 2,816En existencias
$0.793
$0.729
$0.606
$0.559
Envase tipo carrete
$0.328
Ver
Min.: 1
Mult.: 1
: 2,000
60R PCB Mount Radial 170 mA 60 VDC 340 mA 40 A 8 Ohms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Fusibles reajustables - PPTC .75A 24V Mini SMD AEC-Q200 2,521En existencias
Cinta cortada
$0.832
$0.728
$0.67
$0.624
Envase tipo carrete
$0.425
Ver
Min.: 1
Mult.: 1
: 1,500
miniASMD SMD/SMT SMD/SMT 750 mA 24 VDC 1.5 A 40 A 290 mOhms 1812 (4532 metric) - 40 C + 85 C AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse Fusibles reajustables - PPTC 30V POLYFUSE 1.35A RADIAL LEADS 3,156En existencias
$0.78
$0.67
$0.573
$0.521
Envase tipo carrete
$0.363
Ver
Min.: 1
Mult.: 1
: 2,000
30R PCB Mount Radial 1.35 A 30 VDC 2.7 A 40 A 130 mOhms - 40 C + 85 C 5.1 mm Ammo Pack
Littelfuse Fusibles reajustables - PPTC 1.10A 33V 2920 49,990En existencias
Cinta cortada
$0.923
$0.823
$0.699
$0.645
Ver
Envase tipo carrete
$0.406
Min.: 1
Mult.: 1
: 2,000
2920L SMD/SMT SMD/SMT 1.1 A 33 VDC 2.2 A 40 A 410 mOhms 2920 (7450 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Fusibles reajustables - PPTC 60V 40A 12.7Ohms 29,592En existencias
Cinta cortada
$0.702
$0.619
$0.527
$0.402
Ver
Envase tipo carrete
$0.304
Min.: 1
Mult.: 1
: 2,000
miniSMD SMD/SMT SMD/SMT 100 mA 60 VDC 300 mA 40 A 12.7 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Bourns Fusibles reajustables - PPTC 72V 1.1A-HD 40A MAX 14,115En existencias
$0.52
$0.445
$0.391
$0.356
Ver
Min.: 1
Mult.: 1
MF-RX/72 PCB Mount Radial 1.1 A 72 VDC 2.2 A 40 A 250 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Fusibles reajustables - PPTC 72V 1.1A-HD 40A MAX 12,757En existencias
Cinta cortada
$0.559
$0.507
$0.421
$0.389
Envase tipo carrete
$0.25
Ver
Min.: 1
Mult.: 1
: 3,000
MF-RX/72 PCB Mount Radial 1.1 A 72 VDC 2.2 A 40 A 250 mOhms - 40 C + 85 C 5.1 mm Reel, Cut Tape
Bourns Fusibles reajustables - PPTC 30V 1.85A-HD 40A MAX 12,011En existencias
$0.598
$0.545
$0.452
$0.417
Ver
Min.: 1
Mult.: 1
MF-R PCB Mount Radial 1.85 A 30 VDC 3.7 A 40 A 70 mOhms - 40 C + 85 C 5.1 mm Bulk
Bourns Fusibles reajustables - PPTC 30V 4A-HD 40A MAX 8,050En existencias
$0.676
$0.599
$0.511
$0.471
Ver
Min.: 1
Mult.: 1
MF-R PCB Mount Radial 4 A 30 VDC 8 A 40 A 30 mOhms - 40 C + 85 C 5.1 mm Bulk
Littelfuse Fusibles reajustables - PPTC 0.10A 15V 0805 10,038En existencias
Cinta cortada
$1.57
Envase tipo carrete
$1.57
Min.: 1
Mult.: 1
: 4,000
0805L SMD/SMT SMD/SMT 100 mA 15 VDC 300 mA 100 A 6 Ohms 0805 (2012 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Fusibles reajustables - PPTC 30V 1206 .160A POLYFUSE 45,215En existencias
Cinta cortada
$0.689
$0.631
$0.527
$0.486
Ver
Envase tipo carrete
$0.298
Min.: 1
Mult.: 1
: 3,000
1206L SMD/SMT SMD/SMT 160 mA 30 VDC 370 mA 100 A 4.5 Ohms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Fusibles reajustables - PPTC 15V 1206 .500A POLYFUSE 6,749En existencias
28,000Se espera el 01/12/2026
Cinta cortada
$0.728
$0.608
$0.516
$0.467
Ver
Envase tipo carrete
$0.298
Min.: 1
Mult.: 1
: 4,000
1206L SMD/SMT SMD/SMT 500 mA 15 VDC 1 A 100 A 750 mOhms 1206 (3216 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Fusibles reajustables - PPTC 0.10A 30V 1210 30,733En existencias
Cinta cortada
$0.728
$0.664
$0.551
$0.508
Ver
Envase tipo carrete
$0.312
Min.: 1
Mult.: 1
: 3,000
1210L PCB Mount SMD/SMT 100 mA 30 VDC 300 mA 10 A 15 Ohms 1210 (3225 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Fusibles reajustables - PPTC 0.14A 60V 1812 16,779En existencias
Cinta cortada
$0.702
$0.638
$0.53
$0.489
Envase tipo carrete
$0.324
Ver
Min.: 1
Mult.: 1
: 1,500
1812L SMD/SMT SMD/SMT 140 mA 60 VDC 340 mA 10 A 6 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel
Littelfuse Fusibles reajustables - PPTC 1812 15V .5A 6,247En existencias
10,000Se espera el 07/01/2027
Cinta cortada
$0.741
$0.666
$0.56
$0.493
Envase tipo carrete
$0.313
Ver
Min.: 1
Mult.: 1
: 2,000
1812L SMD/SMT SMD/SMT 500 mA 15 VDC 1 A 100 A 1 Ohms 1812 (4532 metric) - 40 C + 85 C Reel, Cut Tape, MouseReel