The utility model relates to a chip-type glass-encapsulated negative temperature thermistor. It has a glass case, a resistor chip and two metal electrodes. The metal electrode is a patch type, and the resistor chip is fixed in a glass case. Two metal electrodes are installed at both ends of the glass case. The metal electrodes at both ends are respectively connected to the electrodes on both sides of the resistance chip through a conductive body integrated with the metal electrode, and the conductive body and the resistance chip are encapsulated in a glass case at a high temperature. The utility model is electrically connected to the outside through a metal electrode, which requires less installation space, more convenient installation, no lead bending, and it is not easy to damage the product during installation.

A chip-type glass-encapsulated negative temperature thermistor, which is characterized by having a glass case (1) and a resistor chip.
(2) and two metal electrodes
(3) Metal electrode
(3) is a chip type, the resistor chip (2) is fixed in the glass case (1), and two metal electrodes (3) are respectively installed at both ends of the glass case (1). The metal electrodes (3) at both ends are respectively connected to the electrodes on both sides of the resistance chip (2) through a conductive body integrated with the metal electrode (3), and the conductive body and the resistance chip (2) are enclosed in a glass case (1) at a high temperature.


Product parameters

item	Parameters and instructions
Nominal resistance	25 ° C Resistance R25 = 400R ~ 2.3M, can be customized
Thermal index B value R25 / R85	B25/85=(1/T1-1/T2)*ln(RT1/RT2) =3000~4600，Deviation ± 1%, can be customized
Tolerance	±1%, ± 2%, ±3%, ±5%
Insulation resistance	500V/DC：≥100MΩ
Operating temperature	-50℃~+300℃
Thermal time constant	8-12s（Still air）
Dissipation factor	≥1.4 mW℃（Still air）

Product appearance dimension drawing


Product Features and Applications

item	Description
Product Features	Resistance accuracy, B value of high precision, stable and reliable;         Interchangeability, good consistency;         High temperature welding, no drift;         Small size, easy to patch installation.
use	Temperature Measurement;          temperature control;          Temperature compensation.
application range	Household appliances temperature control and temperature detection: Such as rice cookers, toasters, air conditioners, microwave ovens, electric fans, electric heating stoves, etc.          Office automation equipment, such as copier, printer temperature detection or temperature compensation;          Industrial, medical, environmental protection, weather, food processing equipment, temperature control and testing;          Liquid level indication and flow measurement;          The field of mobile phone batteries and chargers;          Instrument coils, integrated circuits, quartz crystal oscillator and thermocouple temperature compensation.

 
MF58 glass seal NTC thermistor resistance and B value parameters

Resistance	B value
R25
400	3200
500R	3000
1K	3300	3470
1.8K	3460
2K	3470	3900
2.5K	3490
2.89K	3470
4.7K	3230	3540
5K	3470	3950	3600	3274	3350	3530
7.5K	3430
8.2K	3950
10K	3270	3380	3435	3470	3600	3740	3950	4080
11.78K R80	3550	3550
12K	3600
12.5K	3950
15K	3950	4100
20K	3950	4000	4160	4200
22K	3750	4200
22.5K	4200
30K	3850	3950
33K	3950
40K	3950
40.27K	3950
47K	3950
50K	3950	3990	4050
57.5K	3950
58.3K	3980
92K	3950
100K	3400	3900	3950	3990	4050	4100	4200	4360
104K	3460
105K	4200
107.1K	4220	4200
150K	3950	4300
192K	3860
200K	4420	3570	3899	3500	3520	4200
230K	4150	4370
238K	4200
250K	3950
455K	4120
470K	4370
500K	4050	4260	4300
520K	4050
530K	4080
533K	4090
540K	4090
542K	4110
545K	4083
548K	4110
583K	4140
1M	4200	4400
1.1M	4230
1.388M	4600
2.3M	4500