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Honeywell Littelfuse Digikey Mouser Vishay Cross Super Power NTC Thermistor 5 Ohm 10R MF74
Overview Of The Super Power NTC Thermistor 5 Ohm 10R MF74
R25(Ω): 0.5~30Ω
[Product features] Reliable structure, easy to install, strong
ability to suppress surge current
[Product use] Conversion power supply, switching power supply, UPS
power supply
Characteristics Of The Super Power NTC Thermistor 5 Ohm 10R MF74
● Reliable structure, easy to install.
● Strong ability to suppress surge current.
● The working steady-state current is large.
● It can work continuously under larger steady-state current.
Usage Of The Super Power NTC Thermistor 5 Ohm 10R MF74
* Conversion power supply, switching power supply, UPS power
supply.
* All kinds of high-power lighting fixtures.
* Electric heaters.
Size Of The Super Power NTC Thermistor 5 Ohm 10R MF74 (mm)
Ordering Information Of The Super Power NTC Thermistor 5 Ohm 10R MF74
| Part No | R25 (Ω ) | Max Steady State Current Imax ( A) | Approx. R of Max.Current Rmax (℃ ) | Dissi. Coef. (mW℃) | Thermal time Constant(S) | Operating Temp(℃) | Maxsurgecapacity (UF) 240V/AC |
| 0 5/40 | 0.5 | 40 | 0.00875 | 118 | 340 | -55~+200 | 6800 |
| 0.7/36 | 0.7 | 36 | 0.0110 | 118 | 340 | 6800 | |
| 1/32 | 1 | 32 | 0.0137 | 118 | 340 | 6800 | |
| 1.3/27 | 1.3 | 27 | 0.0192 | 118 | 340 | 6800 | |
| 1.5/27 | 1.5 | 27 | 0.0206 | 118 | 340 | 6800 | |
| 2/25 | 2 | 25 | 0.0240 | 120 | 340 | 6800 | |
| 2.5/25 | 2.5 | 25 | 0.0252 | 120 | 350 | 6800 | |
| 3/23 | 3 | 23 | 0.0293 | 123 | 350 | 6800 | |
| 4/21 | 4 | 21 | 0.0340 | 123 | 350 | 4700 | |
| 5/21 | 5 | 21 | 0.0364 | 123 | 350 | 4700 | |
| 6/18 | 6 | 18 | 0.0494 | 123 | 355 | 3300 | |
| 8/18 | 8 | 18 | 0.0525 | 125 | 360 | 3300 | |
| 10/18 | 10 | 18 | 0.0555 | 125 | 360 | 3300 | |
| 12/15 | 12 | 15 | 0.0622 | 125 | 345 | 1800 | |
| 16/15 | 16 | 15 | 0.0688 | 125 | 345 | 1600 | |
| 20/15 | 20 | 15 | 0.0745 | 125 | 345 | 1600 | |
| 25/15 | 25 | 15 | 0.0857 | 125 | 345 | 1600 | |
| 30/12 | 30 | 12 | 0,1170 | 125 | 350 | 1200 |
NTC and PTC are both thermistors, what is the difference between them?
NTC: Negative temperature coefficient thermistor, the higher the
temperature, the smaller the resistance.
PTC: Positive temperature coefficient thermistor, the higher the
temperature, the greater the resistance.
Simply put, both NTC and PTC are thermistors, and both play the
role of protecting the circuit in the circuit.
The initial resistance of NTC is large, so the blocking effect on
the current is greater, and it can effectively block the peak
current. When the circuit becomes stable, the NTC resistance
gradually becomes smaller, thereby protecting the circuit.
PTC and NTC are just the opposite. In a stable circuit, PTC is
equivalent to a wire. When a temporary pulse signal is encountered,
the resistance of PTC increases sharply, and the circuit is
equivalent to an open circuit; when the pulse signal leaves, the
current decreases, and the PTC resistance The value becomes smaller
and the circuit returns to normal.
Summary: NTC handles abnormalities and enables the circuit to
conduct normally. It is mainly used for temperature compensation,
overcurrent protection, overheating protection, automatic heating,
motor start, color TV degaussing, etc.; PTC recognizes
abnormalities and cuts off the circuit, which is mainly used for
temperature compensation , Overcurrent protection, overheating
protection, automatic heating, motor start, color TV degaussing,
etc.
