What are PTC Resettable Fuses ?
PTC Resettable Fuses are protective devices that limit current flow and reset automatically after a fault condition is cleared. They are commonly used in applications like new product design, maintenance, and field replacements. Important specifications for selection include Current, which determines the maximum load; Operating Temperature, which affects performance under different conditions; and Lead Spacing, which ensures compatibility with PCB layouts. Validating lifecycle status and sourcing options is crucial for procurement teams to mitigate risks.
Parts in this category
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Compare stocked parts across manufacturers and distributors, then add lines to your RFQ.
| Part & Mfr | Total Stock | Pricing & RFQ | Current | Height | Lead Spacing | Mounting Type | Operating Temperature | Ratings | Resistance | Size | Thickness (Max) | Time to Trip | Type | Voltage | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bel Fuse
|
242
|
Price on request
242
|
3 A | - | - | Surface Mount | -40°C ~ 85°C | - | 48 mΩ | 0.290" L x 0.202" W (7.36mm x 5.12mm) | 0.067" (1.70mm) | 20 s | Polymeric | 24V | |
Littelfuse Inc.
|
239
|
Price on request
239
|
1.85 A | 0.906" (23.00mm) | 0.201" (5.10mm) | Through Hole | -40°C ~ 85°C | - | 190 mΩ | 0.660" Dia x 0.122" T (16.76mm x 3.10mm) | - | 12.6 s | Polymeric | 60V | |
Bourns
|
232
|
Price on request
232
|
1.1 A | - | - | Surface Mount | -40°C ~ 85°C | AEC-Q200 | 180 mΩ | 0.181" L x 0.128" W (4.60mm x 3.24mm) | 0.033" (0.85mm) | 500 ms | Polymeric | 24V | |
Littelfuse Inc.
|
230
|
Price on request
230
|
120 mA | 0.433" (11.00mm) | 0.201" (5.10mm) | Through Hole | -40°C ~ 85°C | - | 14 Ω | 0.256" L x 0.181" W (6.50mm x 4.60mm) | - | 3 s | Polymeric | 60V (250V Int) | |
Littelfuse Inc.
|
230
|
Price on request
230
|
2.6 A | - | - | Surface Mount | -40°C ~ 85°C | - | 47 mΩ | 0.181" L x 0.128" W (4.60mm x 3.24mm) | 0.060" (1.52mm) | 5 s | Polymeric | 12V | |
Littelfuse Inc.
|
214
|
Price on request
214
|
100 mA | - | - | Surface Mount | -40°C ~ 85°C | AEC-Q200 | 15 Ω | 0.126" L x 0.062" W (3.20mm x 1.58mm) | 0.039" (1.00mm) | 1 s | Polymeric | 60V | |
Littelfuse Inc.
|
213
|
Price on request
213
|
2 A | - | - | Surface Mount | -40°C ~ 85°C | - | 125 mΩ | 0.289" L x 0.202" W (7.35mm x 5.12mm) | 0.049" (1.25mm) | 5 s | Polymeric | 15V | |
Littelfuse Inc.
|
213
|
Price on request
213
|
1.1 A | - | - | Surface Mount | -40°C ~ 85°C | - | 200 mΩ | 0.179" L x 0.128" W (4.55mm x 3.24mm) | 0.042" (1.07mm) | 500 ms | Polymeric | 24V | |
Bourns
|
209
|
Price on request
209
|
1.6 A | 0.661" (16.80mm) | 0.201" (5.10mm) | Through Hole | -40°C ~ 85°C | - | 150 mΩ | 0.402" Dia x 0.118" T (10.20mm x 3.00mm) | - | 8 s | Polymeric | 30V | |
Littelfuse Inc.
|
204
|
Price on request
204
|
1.85 A | - | - | Surface Mount | -40°C ~ 85°C | - | 165 mΩ | 0.343" L x 0.250" W (8.70mm x 6.36mm) | 0.118" (3.00mm) | 5 s | Polymeric | 33V | |
|
Littelfuse Inc.
|
200
|
Price on request
200
|
750 mA | - | - | Surface Mount | -40°C ~ 85°C | - | 450 mΩ | 0.179" L x 0.128" W (4.55mm x 3.24mm) | 0.030" (0.75mm) | 200 ms | Polymeric | 13.2V | |
Bourns
|
193
|
Price on request
193
|
50 mA | 0.327" (8.30mm) | 0.201" (5.10mm) | Through Hole | -40°C ~ 85°C | - | 22 Ω | 0.315" Dia x 0.122" T (8.00mm x 3.10mm) | - | 5 s | Polymeric | 60V | |
Littelfuse Inc.
|
192
|
Price on request
192
|
2.5 A | 1.000" (25.40mm) | 0.400" (10.15mm) | Through Hole | -40°C ~ 85°C | - | 130 mΩ | 0.819" Dia x 0.118" T (20.80mm x 3.00mm) | - | 15.6 s | Polymeric | 72V | |
Bourns
|
182
|
Price on request
182
|
500 mA | - | - | Surface Mount | -40°C ~ 85°C | - | 900 mΩ | 0.085" L x 0.053" W (2.15mm x 1.35mm) | 0.033" (0.85mm) | 100 ms | Polymeric | 6V | |
MURATA
|
176
|
Price on request
176
|
380 mA | 0.965" (24.50mm) | 0.295" (7.50mm) | Through Hole | -10°C ~ 60°C | - | 6 Ω | 0.728" Dia x 0.217" T (18.50mm x 5.50mm) | - | - | Ceramic | 265V | |
Littelfuse Inc.
|
153
|
Price on request
153
|
650 mA | 0.480" (12.20mm) | 0.199" (5.05mm) | Through Hole | -40°C ~ 85°C | - | 720 mΩ | 0.280" L x 0.140" W (7.10mm x 3.56mm) | - | 1 s | Polymeric | 60V | |
|
Littelfuse Inc.
|
152
|
Price on request
152
|
2.6 A | - | - | Surface Mount | -40°C ~ 85°C | - | 24 mΩ | 0.179" L x 0.128" W (4.55mm x 3.24mm) | 0.028" (0.70mm) | 2 s | Polymeric | 6V | |
Littelfuse Inc.
|
150
|
Price on request
150
|
250 mA | - | - | Surface Mount | -40°C ~ 85°C | - | 7 Ω | 0.681" L x 0.425" W (17.30mm x 10.80mm) | 0.461" (11.70mm) | 6 s | Polymeric | 250V (600V Int) | |
Bel Fuse
|
137
|
Price on request
137
|
750 mA | - | - | Surface Mount | -40°C ~ 85°C | AEC-Q200 | 290 mΩ | 0.179" L x 0.128" W (4.55mm x 3.24mm) | 0.061" (1.55mm) | 200 ms | Polymeric | 24V | |
Bourns
|
131
|
Price on request
131
|
1.1 A | - | - | Surface Mount | -40°C ~ 85°C | AEC-Q200 | 410 mΩ | 0.287" L x 0.214" W (7.31mm x 5.44mm) | 0.118" (3.00mm) | 500 ms | Polymeric | 33V | |
|
Bourns
|
129
|
Price on request
129
|
1.1 A | - | - | Surface Mount | -40°C ~ 85°C | AEC-Q200 | 210 mΩ | 0.181" L x 0.128" W (4.60mm x 3.24mm) | 0.033" (0.85mm) | 300 ms | Polymeric | 6V | |
|
MURATA
|
124
|
Price on request
124
|
750 mA | - | - | Surface Mount | -20°C ~ 85°C | - | 200 mΩ | 0.079" L x 0.049" W (2.00mm x 1.25mm) | 0.043" (1.10mm) | - | Ceramic | 6V | |
Bourns
|
122
|
Price on request
122
|
900 mA | 0.657" (16.70mm) | 0.201" (5.10mm) | Through Hole | -40°C ~ 85°C | - | 470 mΩ | 0.461" L x 0.122" W (11.70mm x 3.10mm) | - | 7.2 s | Polymeric | 60V | |
TDK Corporation
|
118
|
Price on request
118
|
100 mA | 0.650" (16.50mm) | 0.197" (5.00mm) | Through Hole | 0°C ~ 60°C | - | 150 Ω | 0.492" Dia x 0.276" T (12.50mm x 7.00mm) | - | 3 s | Ceramic | 420V | |
|
Littelfuse Inc.
|
115
|
Price on request
115
|
750 mA | - | - | Surface Mount | -40°C ~ 85°C | - | 1 Ω | 0.290" L x 0.202" W (7.36mm x 5.12mm) | 0.125" (3.18mm) | 300 ms | Polymeric | 30V | |
Littelfuse Inc.
|
110
|
Price on request
110
|
9 A | 0.854" (21.70mm) | 0.201" (5.10mm) | Through Hole | -40°C ~ 85°C | - | 13.5 mΩ | 0.551" L x 0.118" W (14.00mm x 3.00mm) | - | 5.5 s | Polymeric | 16V | |
|
Littelfuse Inc.
|
109
|
Price on request
109
|
200 mA | - | - | Surface Mount | -40°C ~ 85°C | - | 5 Ω | 0.179" L x 0.128" W (4.55mm x 3.24mm) | 0.039" (1.00mm) | 20 ms | Polymeric | 30V | |
|
Littelfuse Inc.
|
105
|
Price on request
105
|
350 mA | - | - | Surface Mount | -40°C ~ 85°C | - | 1.7 Ω | 0.179" L x 0.128" W (4.55mm x 3.24mm) | 0.049" (1.25mm) | 150 ms | Polymeric | 30V | |
|
Littelfuse Inc.
|
100
|
Price on request
100
|
2.6 A | - | - | Surface Mount | -40°C ~ 85°C | - | 75 mΩ | 0.290" L x 0.202" W (7.36mm x 5.12mm) | 0.049" (1.25mm) | 10 s | Polymeric | 24V | |
Vishay BC Components
|
100
|
Price on request
100
|
470 mA | 0.532" (13.50mm) | 0.197" (5.00mm) | Through Hole | -40°C ~ 85°C | - | 2.5 Ω | 0.335" Dia x 0.157" T (8.50mm x 4.00mm) | - | - | Ceramic | 30V | |
Bourns
|
100
|
Price on request
100
|
1.85 A | 0.724" (18.40mm) | 0.201" (5.10mm) | Through Hole | -40°C ~ 85°C | AEC-Q200 | 110 mΩ | 0.472" Dia x 0.118" T (12.00mm x 3.00mm) | - | 8.7 s | Polymeric | 30V | |
|
Littelfuse Inc.
|
100
|
Price on request
100
|
2.5 A | 1.000" (25.40mm) | 0.400" (10.15mm) | Through Hole | -40°C ~ 85°C | - | 130 mΩ | 0.819" Dia x 0.118" T (20.80mm x 3.00mm) | - | 15.6 s | Polymeric | 72V | |
Bourns
|
100
|
Price on request
100
|
3.75 A | 1.161" (29.50mm) | 0.402" (10.20mm) | Through Hole | -40°C ~ 85°C | - | 80 mΩ | 0.926" L x 0.122" W (23.51mm x 3.10mm) | - | 24 s | Polymeric | 72V | |
|
Littelfuse Inc.
|
100
|
Price on request
100
|
750 mA | - | - | Surface Mount | - | - | 290 mΩ | 0.126" L x 0.063" W (3.20mm x 1.59mm) | 0.047" (1.20mm) | 200 ms | Polymeric | 6V | |
Littelfuse Inc.
|
100
|
Price on request
100
|
2 A | - | - | Surface Mount | -40°C ~ 85°C | - | 70 mΩ | 0.127" L x 0.102" W (3.22mm x 2.58mm) | 0.063" (1.60mm) | 1 s | Polymeric | 6V | |
FUZETEC TECHNOLOGY
|
100
|
Price on request
100
|
750 mA | - | - | Surface Mount | -40°C ~ 85°C | - | 400 mΩ | 0.179" L x 0.128" W (4.55mm x 3.24mm) | 0.061" (1.55mm) | 200 ms | - | 33V | |
|
Littelfuse Inc.
|
100
|
Price on request
100
|
120 mA | - | - | Surface Mount | -40°C ~ 85°C | - | 6.5 Ω | 0.126" L x 0.063" W (3.20mm x 1.59mm) | 0.039" (1.00mm) | 200 ms | Polymeric | 48V | |
Littelfuse Inc.
|
100
|
Price on request
100
|
2 A | - | - | Surface Mount | -40°C ~ 85°C | - | 45 mΩ | 0.083" L x 0.053" W (2.10mm x 1.35mm) | 0.030" (0.75mm) | 1 s | Polymeric | 6V | |
|
Bourns
|
95
|
Price on request
95
|
200 mA | - | - | Surface Mount | -40°C ~ 85°C | AEC-Q200 | 6 Ω | 0.179" L x 0.128" W (4.55mm x 3.24mm) | 0.043" (1.10mm) | 150 ms | Polymeric | 60V | |
|
Littelfuse Inc.
|
94
|
Price on request
94
|
6 A | 0.673" (17.10mm) | 0.199" (5.05mm) | Through Hole | -40°C ~ 85°C | - | 28 mΩ | 0.402" L x 0.098" W (10.20mm x 2.50mm) | - | 3.3 s | Polymeric | 16V | |
Littelfuse Inc.
|
91
|
Price on request
91
|
500 mA | - | - | Surface Mount | -40°C ~ 85°C | - | 680 mΩ | 0.063" L x 0.032" W (1.60mm x 0.80mm) | 0.061" (1.55mm) | 100 ms | Polymeric | 6V | |
Bourns
|
90
|
Price on request
90
|
120 mA | 0.394" (10.00mm) | 0.201" (5.10mm) | Through Hole | -40°C ~ 85°C | - | 16 Ω | 0.236" L x 0.150" W (6.00mm x 3.80mm) | - | - | Polymeric | 60V (250V Int) | |
|
Littelfuse Inc.
|
81
|
Price on request
81
|
1.5 A | - | - | Surface Mount | -40°C ~ 85°C | - | 250 mΩ | 0.343" L x 0.250" W (8.70mm x 6.36mm) | 0.118" (3.00mm) | 5 s | Polymeric | 15V | |
|
Littelfuse Inc.
|
80
|
Price on request
80
|
750 mA | - | - | Surface Mount | -40°C ~ 85°C | - | 450 mΩ | 0.179" L x 0.128" W (4.55mm x 3.24mm) | 0.030" (0.75mm) | 200 ms | Polymeric | 13.2V | |
Littelfuse Inc.
|
80
|
Price on request
80
|
5 A | 1.008" (25.60mm) | 0.402" (10.20mm) | Through Hole | -40°C ~ 85°C | - | 50 mΩ | 0.551" L x 0.118" W (14.00mm x 3.00mm) | - | 14.5 s | Polymeric | 30V | |
Littelfuse Inc.
|
79
|
Price on request
79
|
250 mA | - | - | Surface Mount | -40°C ~ 85°C | - | - | 0.126" L x 0.063" W (3.20mm x 1.59mm) | 0.032" (0.80mm) | 100 ms | Polymeric | 16V | |
Littelfuse Inc.
|
75
|
Price on request
75
|
3 A | 0.835" (21.20mm) | 0.199" (5.05mm) | Through Hole | -40°C ~ 85°C | - | 80 mΩ | 0.650" L x 0.118" W (16.50mm x 3.00mm) | - | 19.8 s | Polymeric | 60V | |
Bourns
|
74
|
Price on request
74
|
5 A | - | - | Surface Mount | -40°C ~ 85°C | - | 12 mΩ | 0.128" L x 0.063" W (3.25mm x 1.60mm) | 0.047" (1.20mm) | 2 s | Polymeric | 6V | |
|
Bel Fuse
|
71
|
Price on request
71
|
350 mA | - | - | Surface Mount | -40°C ~ 85°C | AEC-Q200 | 1.5 Ω | 0.179" L x 0.128" W (4.55mm x 3.24mm) | 0.028" (0.70mm) | 100 ms | Polymeric | 30V | |
|
Littelfuse Inc.
|
69
|
Price on request
69
|
1.25 A | - | - | Surface Mount | -40°C ~ 85°C | - | 250 mΩ | 0.289" L x 0.202" W (7.35mm x 5.12mm) | 0.049" (1.25mm) | 2 s | Polymeric | 15V |
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