47D-20 Durable NTC Component Electronics , Small Negative Temp Coefficient Thermistor

MF72 Power NTC Thermistor Series

Small size, high power, strong ability to suppress surge current
Fast response
Material constant (B value) is large, and the residual resistance is small
Long life and high reliability
Complete series, wide application range

●Introduction
 

When you turn on an electrical equipment, the surge current can be restrained by a power NTC termistor connected in series with the power circuit. Because of the continuing action of current,temperature of power NTC thermistor raising, the resistance will rapidly drop to a small value, the consumed power can be ignored. So it can't affect normal operating current. Therefore, using power NTC thermistor is a most effectively and most brief measure to restrain surge current, protecting electrical equipment from destruction.

●Applications

◎Conversion power-supply, switch power-supply, ups power-supply

◎Electronic energy saving lamps, electronic ballast and all kinds of electric heater

◎All kinds of RT, display

◎ Bulb and other lighting lamps

●Characteristics

◎Small size, strong power and strong capability of surge current protection.

◎ Fast response to surge current

◎ Big material constant (B value), Small remain resistance

◎Longevity of service. High reliability

◎ Integral series, extensive operating range

● MAIN TECHNICAL PARAMETER

●Dimensions(mm)

MF72 power type NTC thermistor series

Strong Overload Capacity 47D-20 Power Type NTC Thermistor High Power Handling Capability

NTC thermistors are made of metal oxides such as manganese, cobalt, nickel and copper, and are manufactured by ceramic technology. These metal oxide materials have semiconductor properties, because they are completely similar to germanium, silicon, etc. in terms of conductivity. Semiconductor materials. When the temperature is low, the number of carriers (electrons and holes) in these oxide materials is small, so the resistance value is high; as the temperature increases, the number of carriers increases, so the resistance value decreases.

NTC thermistors are divided into:
 

Power type NTC thermistor

Compensated NTC Thermistor

Temperature measuring NTC thermistor

Main features of NTC thermistor:

1. High sensitivity, usually the resistance value changes by about 1%~6% when the temperature changes by 1°C, the range of the temperature coefficient of resistance is very wide, and the absolute value is 10~100 times larger than that of ordinary metal resistance;
2. The working temperature range is wide, the normal temperature device is suitable for -55°C ~ 315°C, the high temperature device is suitable for a temperature higher than 315°C (currently the highest can reach 2000°C), and the low temperature device is suitable for -273°C ~ -55°C;
3. Small in size, it can measure the temperature of gaps, cavities and blood vessels in living organisms that cannot be measured by other thermometers;
4. Easy to use, the resistance value can be freely selected between 0.1 ~ 100kΩ;
5. Rich raw material resources and low price; and easy to process into complex shapes, which can be mass-produced;
6. Good stability, strong overload capacity and good performance.

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.

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.