MF73T-1 0.7Ω 22A 25mm High Power NTC Thermistor CE Stable NTC Electronic Components

Low Residual Resistance High Power Power Type NTC Thermistor MF73 Small Size And Fast Response​

NTC is called a negative temperature coefficient thermistor. It is prepared from a ceramic material that is fully mixed with Mn-Co-Ni oxides and then sintered. It has a resistance-temperature characteristic fluctuation while realizing miniaturization. Small size and fast response to various temperature changes can be used as high-sensitivity and high-precision temperature sensors, and are often used in electronic circuits for real-time temperature monitoring and temperature compensation. As the temperature of the body increases, the resistance value of NTC will decrease nonlinearly, which is the characteristic of NTC.

NTC negative temperature coefficient thermistor temperature range

Its measurement range is generally -10～+300℃, and it can also be -200～+10℃, and it can even be used for temperature measurement in the environment of +300～+1200℃.
The accuracy of the negative temperature coefficient thermistor thermometer can reach 0.1 ℃, and the temperature sensing time can be as little as 10s or less. It is not only suitable for granary thermometers, but also can be used for temperature measurement in food storage, medicine and health, scientific farming, oceans, deep wells, high altitudes, glaciers, etc.

NTC thermistors are divided into:
 

Power type NTC thermistor

Compensated NTC Thermistor

Temperature measuring NTC thermistor

Main features of NTC thermistor:
 

• Small Size and fast response

• High Power handling capability

• Fast response to surge current

• High material constant (B value)

• Low residual resistance

• Wide operating temperature range -55 to +200C

• R25 allowable tolerance is ±20%

• Long-term Stability and Reliability

2.5D-20 Ptc 10K Ntc ThermistorShapec Structure Picture

Can be installed into the power circuits of:

• Power supplies and inverters

• Uninterruptible Power Supplies

• Energy saving lamps

• Electronic Ballasts

• Filament Protection of various types of lamps

• Some types of heaters

• For higher power circuits ask about the MF73

and MF74 series surge suppressors.

Applications

Temperature measurement and control of household air-conditioner, refrigerator, icebox,water heater,drinking
machine,radiator,dishwasher, disinfector,washing machine, drying machine,middle-or-low-temperature drying box and constant
temperature box.

Conventional product electrical performance parameters​
 

Part No.	R25℃ (KΩ)	B(K) 25/50℃	Rated Power @25℃(mW)	Dissipation Factor(δ) (mW/℃)	Thermal time Constant (S)
TS502□3274A	5.0	3274	10-20	2-4	5-20
TS502□3435B	5.0	3435	10-20	2-4	5-20
TS502□3470A	5.0	3470	10-20	2-4	5-20
TS502□3950A	5.0	3950	10-20	2-4	5-20
TS103□3274A	10.0	3274	10-20	2-4	5-20
TS103□3435B	10.0	3435	10-20	2-4	5-20
TS103□3470A	10.0	3470	10-20	2-4	5-20
TS103□3950A	10.0	3950	10-20	2-4	5-20
TS103□4100A	10.0	4100	10-20	2-4	5-20
TS153□3950A	15.0	3950	10-20	2-4	5-20
TS153□4100A	15.0	4100	10-20	2-4	5-20
TS203□3950A	20.0	3950	10-20	2-4	5-20
TS203□4100A	20.0	4100	10-20	2-4	5-20
TS223□4200A	22.0	4200	10-20	2-4	5-20
TS403□3928A	40.0	3928	10-20	2-4	5-20
TS503□3950A	50.0	3950	10-20	2-4	5-20
TS503□4100A	50.0	4100	10-20	2-4	5-20
TS104□3950A	100.0	3950	10-20	2-4	5-20
TS104□4100A	100.0	4100	10-20	2-4	5-20
TS104□4400A	100.0	4400	10-20	2-4	5-20

Negative temperature coefficient thermistor, also known as NTC thermistor, is a kind of sensor resistance whose resistance value decreases with the increase of temperature. Widely used in various electronic components, such as temperature sensors, resettable fuses and self-adjusting heaters, etc.

The matters needing attention in the use of NTC are as follows

1. Be sure to add a suitable series resistor, otherwise the thermal collapse will occur when the NTC is in use, because the current flowing through the NTC will generate heat, if the heat cannot be dissipated in time, the temperature of the NTC will rise, and then the resistance will drop, at this time The current will increase significantly, and the NTC will get hotter, so that cycling can eventually cause the NTC to burn out, or even catch fire.

2. The end electrode of NTC is usually composed of Ag, and silver migration will occur when it is used improperly, resulting in short circuit of NTC. Avoid NTC contact with water during use.

3. The high temperature during welding will cause the irreversible resistance drift of NTC. In some cases, it may cause a 5% drift, so try to avoid high temperature welding.