When the temperature of the ntc thermistor is low, the number of carriers (electrons and pores) of these oxide materials is small, so its resistance value is high; As the temperature increases, the number of carriers increases, so the resistance value decreases. The variation range of NTC thermistor at room temperature is 10O ~ 1000000 ohm, and the temperature coefficient is -2% ~ -6.5%. NTC thermistor can be widely used in temperature measurement, temperature control, temperature compensation and other aspects.

Many high-tech electronic products require thermistors to perform stable temperature control and temperature measurement functions under ultra-high temperature, ultra-high pressure and other harsh conditions. Most manufacturers blindly pursue the stable performance of NTC thermistors' conventional performance such as accuracy, sensitivity, and drift value. Ignoring the life of the resistor, resulting in the use of electronic products because NTC cannot work for a long time. As a result, all accuracy, sensitivity, high temperature resistance, and so on, become meaningless.

NTC refers to thermistor phenomena and materials that have an exponential relationship that decreases with temperature and has a negative temperature coefficient. The material is a semi-conductor ceramic made by using two or more metal oxides such as manganese, copper, silicon, cobalt, iron, nickel, zinc, and the like, which are thoroughly mixed, formed, and sintered. Can be made into a thermistor with a negative temperature coefficient (NTC). Its resistivity and material constant vary with different material composition ratios, sintering atmosphere, sintering temperature, and structural state. Non-oxide NTC thermistor materials such as silicon carbide, tin selenide, and tantalum nitride have also appeared.

The working principle of the NTC chip thermistor is this. It is precisely because of these principles that this type of resistance has become an indispensable key for many ranges. After all, this type of resistor has a strong performance whether it is temperature measurement, temperature control or temperature compensation.

Products covered:
Specifications: 0402 (1005), 0603 (1608), 0805 (2012);
R25 range: 1.0 × 102Ω-6.8 × 105Ω, the resistance value of the error level of ± 1%, ± 3%, ± 5%, ± 10%;
B25 / 50 value range: 2500K-5000K, B-level error of ± 1%, ± 2%, ± 3%, ± 5%.

Package Type	L	W	T	M
0402（1005）	0.04±.006（1.0±0.15）	0.02±.004（0.5±0.10）	0.024max（0.60max）	0.004min（0.10min）
0603（1608）	0.063±.006（1.6±0.15）	0.031±.006（0.8±0.15）	0.037max（0.95max）	0.004min（0.10min）
0805（2012）	0.08±.008（2.0±0.20）	0.05±.008（1.25±0.2）	0.05max（1.25max）	0.006min（0.15min）
1206（3216）	0.126±.008（3.2±0.20）	0.063±.008（1.6±0.20）	0.063max（1.60max）	0.008min（0.20min）

 
 

NTC chip device main purposes:

     Temperature compensation quartz crystal oscillator (TCXO) RF circuit, temperature critical vision device, LCD panel used in mobile communication.


       NTC SMD thermistor

     LCD temperature compensation circuit.
     Temperature detection of rechargeable batteries and chargers.

      NTC SMD thermistor

     Temperature Detection of Computer Microprocessor.
     IC and semiconductor devices overheat protection.
     Print head temperature compensation.
     Players and a variety of low-power driver circuit protection.
     Wired communication program - controlled switches (2 to 4 per line).
     DC / AC converters and HIC thermal protection.
     The need for temperature compensation of various circuits.

 

 
0603 SMD thermistor series

Specifications Model	25℃ Resistance value（KΩ）	B value
		A（25/50℃）K	B（25/85℃）K
0603-300□3200A	0.030	3200
0603-400□3200A	0.040	3200
0603-470□3200A	0.047	3200
0603-101□3250A	0.100	3250
0603-101□2750B	0.100		2750
0603-121□2750B	0.120		2750
0603-151□2750B	0.150		2750
0603-151□3000B	0.150		3000
0603-181□2750B	0.180		2750
0603-201□2750B	0.200		2750
0603-221□2750B	0.220		2750
0603-221□3000B	0.220		3000
0603-221□3250A	0.220	3250
0603-301□3000B	0.30		3000
0603-331□3000B	0.33		3000
0603-471□3000B	0.47		3000
0603-501□3000B	0.50		3000
0603-561□3000B	0.56		3000
0603-681□3000B	0.68		3000
0603-102□3200B	1.0		3200
0603-202□3100B	2.0		3100
0603-202□3150B	2.0		3150
0603-222□2800B	2.2		2800
0603-222□3150B	2.2		3150
0603-222□3950B	2.2	3950
0603-302□3150B	3.0		3150
0603-302□3200B	3.0		3200
0603-332□2800B	3.3		2800
0603-332□3150B	3.3		3150
0603-332□3200A	3.3	3200
0603-472□3300A	4.7	3300
0603-472□3340B	4.7		3340
0603-502□3300A	5.0	3300
0603-502□3340B	5.0	3340
0603-103□3380A	10.0	3380
0603-103□3435B	10.0		3435
0603-103□3450B	10.0		3450
0603-103□3500A	10.0	3500
0603-103□3500B	10.0		3500
0603-103□3550B	10.0		3550
0603-103□3610B	10.0		3610
0603-103□3700B	10.0		3700
0603-103□3970B	10.0		3970
0603-123□3550B	12.0		3550
0603-203□3800B	20.0		3800
0603-223□3800A	22.0	3800
0603-223□3800B	22.0		3800
0603-223□3900B	22.0		3900
0603-223□4000B	22.0		4000
0603-303□3900B	30.0		3900
0603-333□3800A	33.0	3800
0603-333□3800B	33.0		3800
0603-333□3900B	33.0		3900
0603-333□3950B	33.0		3950
0603-403□3950B	40.0		3950
0603-473□3800B	47.0		3800
0603-473□3900A	47.0	3900
0603-473□3950B	47.0		3950
0603-493□3950B	49.0		3950
0603-503□3950B	50.0		3950
0603-513□3950B	51.0		3950
0603-683□3950B	68.0		3950
0603-683□4000A	68.0	4000
0603-104□3950B	100.0	3950	3950
0603-104□4000A	100.0	4000
0603-104□4000B	100.0	4000
0603-104□4100A	100.0	4100
0603-104□4400B	100.0		4400
0603-154□4000B	150.0		4000
0603-204□3950B	200.0		3950
0603-224□3950B	220.0		3950
0603-304□4055B	300.0		4055
0603-334□4000B	330.0		4000
0603-374□4000B	370.0		4000
0603-404□4100B	400.0		4100
0603-474□4100B	470.0		4100
0603-504□4100B	500.0		4100
0603-564□4100B	560.0		4100
0603-105□4200B	1000.0		4200
0603-205□4300B	2000.0		4300
0603-505□4400B	5000.0		4400