MF72 5D-20 TUV practical negative temperature coefficient NTC power anti-surge current with thermistor

Good Stability 5D-20 Power NTC Thermistor Fast Response To Surge Current
 

NTC (Negative Temperature Coefficient) refers to the thermistor phenomenon and material that decreases exponentially with temperature rise and has a negative temperature coefficient. The material is a semiconductor ceramic made by fully mixing, molding and sintering two or more metal oxides such as manganese, copper, silicon, cobalt, iron, nickel, zinc, etc., and can be made with a negative temperature coefficient. (NTC) thermistor. Its resistivity and material constants vary with material composition ratio, sintering atmosphere, sintering temperature and structural state. Now there are also non-oxide NTC thermistor materials represented by silicon carbide, tin selenide, and tantalum nitride.
NTC heat-sensitive semiconducting ceramics are mostly oxide ceramics with spinel structure or other structures, which have a negative temperature coefficient, and the resistance value can be approximately expressed as:
Where RT and RT0 are the resistance values at temperature T and T0 respectively, and Bn is the material constant. The resistivity of the ceramic grain itself changes due to temperature changes, which is determined by the characteristics of semiconductors.

Features

• Small size, high power, reliable surge current protection.
• High material constant (B value),
• Low residual resistance
• High steady state current, long lasting, high reliability
• Convenient for PCB installation, wide operating range

Application

• Can be installed into the power circuits of:
• High power switching power supplies, Power conversion, UPS power.
• High power battery charger, electric vehicle battery charger.
• High power LED light, high power electronic energy saving lamps and other lamps.

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.