Sealed glass Series NTC Thermistor

 

Applications：
Air conditioner (heat and cool) and related equipment.

Temperature measurement and control and thermal protection circuits in various family appliances, such as air conditioner, refrigerator, electromagnetic oven, bread toaster, bake oven, electric roaster, microwave oven, electric fan, soybean milk maker, electric water heater, rice cooker, sterilizing cabinet, water dispenser and lighting appliances .

Temperature measurement and control circuit in the equipment for industrial and agricultural, medical, meteorological purpose, environmental protection and food processing.

Automatic office appliances.

Temperature compensation circuits such as instrument and coils, automobile circuit, integrated circuit module, transistor amplifying circuit, quartz crystal oscillator and thermocouple.

 

1、Dimensions and sizes

2、Features
·Glass sealed packaging with firm structure and good heat resistance, applicable in severe environment.
·High precision resistance and B values high reliability and stability.
·Fast response and high sensitivity.
·Good interchangeability, good consistency, high performance/price ratio.
Small size and light weight, suitable for auto and mass production.
3、Applications
Temperature measurement.
·Temperature control.
  ·Temperature compensation.
4、 Applications
·Battery Pack
·Temperature compensation circuits such as instrument and coils, automobile circuit, integrated circuit module, transistor amplifying circuit, quartz crystal oscillator and thermocouple.
5、Product Types and Specifications
    YY／MF 58／－104 J－395 F   
①     ②  ③      ④ ⑤   ⑥  ⑦
 ①YY —— Abbreviations for company.
 ②MF -—— Negative temperature coefficient of  thermistor.
③58/51 ——Temperature measurement type glass sealed thermistor.
④104 ——Nominal resistance of thermistor, e.g. 104 indicates that the nominal resistance of the thermistor is 10 × 104（Ω）.
 ⑤J —— Resistance error (precision) of thermistor, e.g. J indicates the nominal resistance error of the thermistor is ± 5%.
⑥ 395 ——B25/50 value of thermistor, e.g. 395 indicates the thermistors material factors B25/50 value is 395*10K.
⑦F ——B25/50  error (precision) of thermistor, e.g. F indicates the thermistors B25/50 error (precision) is ± 1%.
  Note：R25 precision：F（±1%）,G（±2%）,H（±3%）,J（±5%）,K（±10%）.
                       B25/50 precision：F（±1%）,G（±2%）,H（±3%）.

6、Main Technical Parameters

specification	Resistance At 25℃ （KΩ）	B25/50（K）	Thermal dissipation constant （mW/℃）	Thermal time constant （S）	Temperature Range （℃）
MF58-202F-347F	2	3470	2．5	17	-40~300
MF58-302G-350G	3	3500
MF58-502H-350H	5	3500
MF58-103J-350H	10	3550
MF58-153K-360H	15	3600
MF58-103J-370H	10	3700
MF58-203J-385G	20	3850
MFB-303J-390H	30	3900
MFB-473J-395G	47	3950
MFB-503J-395H	50	3950
MFB-104J-405H	100	4050
MFB-154J-410H	150	4100

 

Parameters	Parameter range	Test conditions
R25nominal resistance	500 Ω～1M Ω	Constant temperature 50℃± 0.05 ℃
Allowed R25 deviation(%)	± 1 、± 2 、± 3  ± 5 、± 10	Constant temperature 50℃± 0.05 ℃
B25/50(material coefficient) (thermal sensitive index )	2500～5000K	Constant temperature  25 ℃± 0.05 ℃ Constant temperature 50℃± 0.05 ℃
Allowed B25/50deviation(%)	± 0.05 、± 1 、± 2	Constant temperature  25 ℃± 0.05 ℃ Constant temperature 50℃± 0.05 ℃
(dissipation factor)	≥ 1.5 mw/ ℃	In still air
(thermal time constant)	≤ 17S	In still air
TA(working temperature)	－55 ℃～＋250 ℃
PN(rated power)	50 mw	In maximum working temperature

 

Epoxy-Sealed series NTC thermistor

 

Application
·Electric thermo meter, electric calendar, electric clock temperature presentation and electric gifts.
·Cooling and heating equipment, electric heating constant appliances.
·Automobile electric temperature measurement and control circuit.
·Temperature sensor and temperature instrument.
·Medical electrical equipment and electric toilet facilities.
Detail:
1、Appearance and Dimensions(Unit：mm)

specification	T（Max）	L（Min）	d±0.03
02D	2.0	25	0.25
03D	3.5	25	0.45

 

2、Features
·Epoxy enclosed, small in volume, with quick response time and high sensitivity.
·Stable in working, high in reliability and precision.
·Consistent and easy to interchange.
3、Purpose
·Precision temperature measurement.
·Temperature compensation for electric circuits.
·Temperature measurement and control circuit.
4、Application
·Electric thermo meter, electric calendar, electric clock temperature presentation and electric gifts.
·Cooling and heating equipment, electric heating constant appliances.
·Automobile electric temperature measurement and control circuit.
·Temperature sensor and temperature instrument.
·Medical electrical equipment and electric toilet facilities.
5、Description of Product Types and Specifications
YY／MF 5A／－104 J－395 F   
①     ②  ③      ④ ⑤   ⑥  ⑦
①YY ——Abbreviations for company.

 ②MF -—— Indicates negative temperature (NTC) coefficient thermistor.
③5A —— Temperature measurement type epoxy enclosed thermistor.
④104 —— Nominal resistance of thermistor, e.g. 103 indicates that the nominal resistance of the thermistor is 10 * 103 (Ω). 
⑤J —— Resistance error (precision), e.g. G indicates the error (precision) of the thermistors is ± 2%.
⑥ 395 —— Material factor B25/50 value of thermistor, e.g.395 indicates the material factor B25/50 value of the thermistor is 395*10K.
⑦F —— B25/50 error (precision), e.g. F indicates the B25/50 error (precision) of the thermistor is ±1% .
  Note :R25 precision :F（±1%）,G（±2%）,H（±3%）,J（±5%）,K（±10%）.
                     B25/50 precision :F（±1%）,G（±2%）,H（±3%）.    
 6、Main Technical Parameters：

Part NO	Resistance At 25℃ （KΩ）	B 25/50 value （K）	Thermal dissipation constant （mW/℃）	Thermal time constant （S）	Temperature  Range （℃）
MF5A 02D502-327	5	3270	2.5	16	-55~125
MF5A 02D103-338	10	3380
MF5A 02D502-347	5	3470
MF5A 02D103-347	10	3470
MF5A 02D202-392	2	3920
MF5A 02D502-395	5	3950
MF5A 02D503-395	50	3950
MF5A 02D473-395	47	3950
MF5A 02D104-410	100	4100

 

Part NO	Resistance At 25℃ （KΩ）	B 25/50 value （K）	Thermal dissipation constant （mW/℃）	Thermal time constant （S）	Temperature  Range （℃）
MF5A 03D101-305	100	3050	2.5	16	-55~125
MF5A 03D502-327	5K	3270
MF5A 03D103-338	10K	3380
MF5A 03D502-347	5K	3470
MF5A 03D103-347	10K	3470
MF5A 03D202-392	2K	3920
MF5A 03D502-395	5K	3950
MF5A 03D503-395	50K	3950
MF5A 03D473-395	47K	3950
MF5A 03D104-410	100K	4100

 

Parameters	Parameter range	Test conditions
R25（nominal resistance）	500 Ω～ 200K Ω	Constant temperature  25 ℃± 0.05 ℃
Allowed R25 deviation (%)	± 1 、± 2 、± 3 、 ± 5 、± 10	Constant temperature  25 ℃± 0.05 ℃
B25/50(material coefficient) (thermal sensitive index)	3000 ～ 5000K	Constant temperature  25 ℃± 0.05 ℃ Constant temperature   50 ℃± 0.05 ℃
Allowed B25/50deviation(%)	± 1 、± 2 、± 3	Constant temperature  25, ℃± 0.05 ℃ Constant temperature  50 ℃± 0.05 ℃
δ(dissipation factor)	≥ 0.7mw/ ℃	In still air
τ(thermal time constant)	≤ 3.4S	In still air
TA(working temperature)	－40 ℃ ~ ＋125 ℃
PN(rated power)	50 mw	In maximum working temperature