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PTC Resettable Fuses

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SMD2920P100TF
JEMETE
hold_current:1A,max_voltage:33V,trip_current:2.00A,Maximum current:40A
Quantity: 1780
In Stock
24+
1+ $0.0475
10+ $0.0391
30+ $0.0325
100+ $0.0269
300+ $0.0263
2000+ $0.025
- +
x $0.0475
Ext. Price: $0.04
MOQ: 1
Mult: 1
SPQ: 2000
SMD2920P300TF/16
RUILON
20s 8A 12mΩ 16V 48mΩ 40A 3A 2920 292cm(length)
Quantity: 382
In Stock
21+
1+ $0.1007
10+ $0.0828
30+ $0.0688
100+ $0.057
300+ $0.0556
1500+ $0.053
- +
x $0.1007
Ext. Price: $0.10
MOQ: 1
Mult: 1
SPQ: 1500
0ZRN0300FF1E
BELDEN
Quantity: 2125
Ship Date: 6-13 working days
1+ $0.644
10+ $0.5877
50+ $0.4876
100+ $0.4301
250+ $0.3872
500+ $0.351
3000+ $0.2751
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x $0.644
Ext. Price: $1.93
MOQ: 3
Mult: 1
SPQ: 1
MICROSMD050F-2
Littelfuse
Littelfuse resettable fuse, 13.2V DC, 1A, hold_current0.5A
Quantity: 2012
In Stock
2414+
5+ $0.1431
50+ $0.1099
150+ $0.0875
500+ $0.0763
2000+ $0.0696
4000+ $0.0648
- +
x $0.1431
Ext. Price: $0.71
MOQ: 5
Mult: 5
SPQ: 4000
RUEF160
Littelfuse
Lit resettable fuse, 30V DC, 3.2A, hold_current1.6A
Quantity: 725
In Stock
2518+
1+ $0.2342
10+ $0.2027
30+ $0.1814
100+ $0.162
500+ $0.1481
1000+ $0.1396
- +
x $0.2342
Ext. Price: $0.23
MOQ: 1
Mult: 1
SPQ: 500
SMD0805B100TFT
YAGEO
300ms 1.95A 40mΩ 6V 230mΩ 1A 40mΩ 0805 SMD mount 2.1mm*1.35mm*1.5mm
Quantity: 1070
Ship Date: 6-13 working days
10+ $0.1116
100+ $0.1024
250+ $0.0909
500+ $0.0803
1000+ $0.0748
3000+ $0.0594
- +
x $0.1116
Ext. Price: $1.22
MOQ: 11
Mult: 1
SPQ: 1
1206L075/36V
BDT-FUSE
Quantity: 3500
Ship Date: 3-5 working days
10+ $0.0247
1000+ $0.0247
3500+ $0.0247
7000+ $0.0247
- +
x $0.0247
Ext. Price: $0.24
MOQ: 10
Mult: 1
SPQ: 3500
CL-180
Amphenol
Amphenol Advanced Sensors NTCthermistor sensor, 16Ω, Minimum sensing temperature-50°C, Maximum sensing temperature+175°C
Quantity: 2173
Ship Date: 14-19 working days
250+ $0.9048
500+ $0.8928
2000+ $0.8808
4000+ $0.804
- +
x $0.9048
Ext. Price: $400.82
MOQ: 443
Mult: 1
SPQ: 1
SMD1812P150TF/8
JEMETE
hold_current:1.5A,max_voltage:8V,trip_current:3.00A,Maximum current:100A
Quantity: 1409
In Stock
24+
1+ $0.0269
10+ $0.0216
30+ $0.0176
100+ $0.0167
300+ $0.015
2000+ $0.0145
- +
x $0.0269
Ext. Price: $0.02
MOQ: 1
Mult: 1
SPQ: 2000
JSMD1206-010
JKSEMI
PTC 30V 0.1A 1206
Quantity: 3500
In Stock
23+
1+ $0.0159
- +
x $0.0159
Ext. Price: $0.01
MOQ: 1
Mult: 1
SPQ: 3500
JSMD1206-012/60
JKSEMI
Quantity: 2141
In Stock
22+
1+ $0.0173
- +
x $0.0173
Ext. Price: $0.01
MOQ: 1
Mult: 1
SPQ: 3500
ASMD1812-260
JDT FUSE
2.5s 8A 10mΩ 8V 50mΩ 100A 2.6A 1812 181.2cm(length)
Quantity: 15000
Ship Date: 3-5 working days
1500+ $0.0219
3000+ $0.0216
4500+ $0.0211
- +
x $0.0219
Ext. Price: $32.85
MOQ: 1500
Mult: 1500
SPQ: 1500
NSMD100/16
KUU
PPTCresettable fuse
Quantity: 35000
Ship Date: 3-5 working days
3500+ $0.0388
10500+ $0.0382
17500+ $0.0373
38500+ $0.034
- +
x $0.0388
Ext. Price: $135.80
MOQ: 3500
Mult: 3500
SPQ: 3500
1206L016/48V
BDT-FUSE
Quantity: 5000
Ship Date: 3-5 working days
10+ $0.0137
1000+ $0.0137
5000+ $0.0137
10000+ $0.0137
- +
x $0.0137
Ext. Price: $0.13
MOQ: 10
Mult: 1
SPQ: 5000
1210L010/90V
BDT-FUSE
Quantity: 4000
Ship Date: 3-5 working days
10+ $0.0205
1000+ $0.0205
4000+ $0.0205
8000+ $0.0205
- +
x $0.0205
Ext. Price: $0.20
MOQ: 10
Mult: 1
SPQ: 4000
SMD1812-350C-6V
BNSTAR
7A 8mΩ 6V 35mΩ 100A 3.5A 1812
Quantity: 30000
Ship Date: 3-5 working days
200+ $0.0432
400+ $0.0425
600+ $0.0414
- +
x $0.0432
Ext. Price: $8.64
MOQ: 200
Mult: 200
SPQ: 1500
0603L005/48V
BDT-FUSE
Quantity: 5000
Ship Date: 3-5 working days
10+ $0.0165
1000+ $0.0165
5000+ $0.0165
10000+ $0.0165
- +
x $0.0165
Ext. Price: $0.16
MOQ: 10
Mult: 1
SPQ: 5000
0603L035/12V
BDT-FUSE
Quantity: 5000
Ship Date: 3-5 working days
10+ $0.0165
1000+ $0.0165
5000+ $0.0165
10000+ $0.0165
- +
x $0.0165
Ext. Price: $0.16
MOQ: 10
Mult: 1
SPQ: 5000
0603L020/16V
BDT-FUSE
Quantity: 5000
Ship Date: 3-5 working days
10+ $0.0165
1000+ $0.0165
5000+ $0.0165
10000+ $0.0165
- +
x $0.0165
Ext. Price: $0.16
MOQ: 10
Mult: 1
SPQ: 5000
SMD1210-550-6V
BNSTAR
11A 800μΩ 6V 10mΩ 50A 5.5A 1210
Quantity: 30000
Ship Date: 3-5 working days
200+ $0.0538
400+ $0.0529
600+ $0.0516
- +
x $0.0538
Ext. Price: $10.76
MOQ: 200
Mult: 200
SPQ: 3000
SMD2920-150C-33V
BNSTAR
Quantity: 15000
Ship Date: 3-5 working days
200+ $0.0479
400+ $0.0471
600+ $0.0458
- +
x $0.0479
Ext. Price: $9.58
MOQ: 200
Mult: 200
SPQ: 1500
SMD1206-025C-16V
BNSTAR
500mA 350mΩ 16V 2.5Ω 40A 250mA 1206
Quantity: 35000
Ship Date: 3-5 working days
200+ $0.0187
400+ $0.0184
600+ $0.0179
- +
x $0.0187
Ext. Price: $3.74
MOQ: 200
Mult: 200
SPQ: 3500
1206L025/16V
BDT-FUSE
Quantity: 5000
Ship Date: 3-5 working days
10+ $0.011
1000+ $0.011
5000+ $0.011
10000+ $0.011
- +
x $0.011
Ext. Price: $0.11
MOQ: 10
Mult: 1
SPQ: 5000
0805L075/6V
BDT-FUSE
Quantity: 4000
Ship Date: 3-5 working days
10+ $0.0117
1000+ $0.0117
4000+ $0.0117
8000+ $0.0117
- +
x $0.0117
Ext. Price: $0.11
MOQ: 10
Mult: 1
SPQ: 4000
1206L025/33V
BDT-FUSE
Quantity: 5000
Ship Date: 3-5 working days
10+ $0.0137
1000+ $0.0137
5000+ $0.0137
10000+ $0.0137
- +
x $0.0137
Ext. Price: $0.13
MOQ: 10
Mult: 1
SPQ: 5000

PTC Resettable Fuses

PTC Resettable Fuses: Definition, Function, Applications, and Selection Criteria

Definition:
A PTC (Positive Temperature Coefficient) Resettable Fuse is an electronic component designed to protect electrical circuits from overcurrent conditions. Unlike traditional fuses that are destroyed when they interrupt a fault, PTC fuses can automatically reset and resume normal operation once the fault condition is removed and the component cools down.

Function:
The primary function of a PTC resettable fuse is to provide overcurrent protection. When an excessive current flows through the circuit, the PTC fuse heats up and its resistance increases dramatically, limiting the current flow. Once the fault is cleared and the temperature drops, the resistance decreases, and the fuse returns to its normal state, allowing the circuit to resume operation without the need for replacement.

Applications:
PTC fuses are widely used in various applications due to their self-resetting capability and reliability. Some common applications include:
1. Consumer electronics: Protecting devices like smartphones, laptops, and power supplies.
2. Industrial controls: Safeguarding motor drives, sensors, and control panels.
3. Automotive: Securing electric vehicle components such as battery management systems and charging circuits.
4. Telecommunications: Ensuring the integrity of communication equipment and networks.
5. Renewable energy: Protecting solar panels and wind turbines from electrical faults.

Selection Criteria:
When selecting a PTC resettable fuse, consider the following criteria:
1. Current Rating: Choose a fuse with a current rating that matches the normal operating current of the circuit.
2. Voltage Rating: Ensure the fuse can withstand the maximum voltage of the circuit.
3. Time-Current Characteristics: Select a fuse that provides the desired time-delay response to overcurrent conditions.
4. Reset Time: Consider the time it takes for the fuse to reset after a fault, which can be crucial for uninterrupted operation.
5. Environmental Conditions: Factor in temperature, humidity, and other environmental factors that may affect the fuse's performance.
6. Physical Size and Mounting: Ensure the fuse fits within the available space and can be mounted according to the circuit design.
7. Certifications and Standards: Verify that the fuse meets relevant safety and performance standards.

In summary, PTC resettable fuses offer a convenient and efficient solution for overcurrent protection in a variety of electronic and electrical systems, reducing the need for frequent replacements and minimizing downtime.
Please refer to the product rule book for details.