China sensor manufacturers

China Temperature Sensor & Thermistor manufacturer

MF58 Resistive type Glass Sealed thermistor

Product Item: MF58 Resistive type Glass Sealed thermistor
Category: NTC
Axial glass-encapsulated NTC thermistors are widely used in various temperature detection fields due to their simple manufacturing process and low cost. At present, the internal structure of most axial glass-encapsulated NTC thermistors on the market is formed by direct physical contact between the lead of the magnesium wire and the NTC chip. If the poor physical contact causes gaps to appear, and the thermal expansion coefficients of the glass and the Dumex wire are not the same, an open circuit may occur at high temperatures. At the same time, the practical application temperature of most axial glass sealed NTC thermistors on the market is -50 ℃ ~ 250 ℃, which can be widely used in the field of low and medium temperature detection. However, in the temperature range of 250 ℃ ~ 500 ℃, because of the potential open circuit of NTC thermistors, only metal platinum resistors can be used. However, the price of metal platinum resistors is expensive, which will increase the production cost.

  • PRODUCT DETAIL
Axial glass-encapsulated NTC thermistors are widely used in various temperature detection fields due to their simple manufacturing process and low cost. At present, the internal structure of most axial glass-encapsulated NTC thermistors on the market is formed by direct physical contact between the lead of the magnesium wire and the NTC chip. If the poor physical contact causes gaps to appear, and the thermal expansion coefficients of the glass and the Dumex wire are not the same, an open circuit may occur at high temperatures. At the same time, the practical application temperature of most axial glass sealed NTC thermistors on the market is -50 ℃ ~ 250 ℃, which can be widely used in the field of low and medium temperature detection. However, in the temperature range of 250 ℃ ~ 500 ℃, because of the potential open circuit of NTC thermistors, only metal platinum resistors can be used. However, the price of metal platinum resistors is expensive, which will increase the production cost.

A: Dimension drawings
 mf58 thermistance
 
B:Product Features:
1: MF58 series of products for the axial lead glass package type
2: good stability, high reliability
3: Wide resistance range: 1KΩ ~ 1000KΩ
4: resistance and B value of high precision
5: As a result of glass packaging,Can be used in high temperature and harsh environments
6: small size, rugged, easy to install automatically
7: Operating temperature range -40 ℃ ~ +300 ℃
8: Rated power: ≤ 50mW
9: thermal induction fast, high sensitivity

C:Product model description
MF   58  103    F   3950
①  ②   ③    ④    ⑤ 
①MF ¬ - negative temperature coefficient (NTC) thermistor code.
② 58 - glass package thermistor.
③103 - thermistor nominal resistance, said the resistance of the nominal resistance: 10 × 103 (Ω).
F = ± 1%, G = ± 2%, H = ± 3%, J = ± 5% of the resistance value (accuracy)
⑤ 3950 - resistance of the thermal index (material coefficient) B value: 395 × 10 (K)
  Note: According to customer requirements,Provide different R value, B value accuracy, customization.
        When measuring NTC thermistors, the following must be observed:
• Can not be measured in air, The temperature difference in the air is bigger, Measurement is not accurate, Resulting in accuracy bias.
• Measurement using a high-precision thermostat, NTC into the thermostat after the test tank, After the temperature of the thermostat is stable, Can be measured.
• Measure voltage as low as possible,To reduce NTC self-heating caused by measurement error.
• For high temperature measurements,The temperature of the bath needs to be corrected and checked with a thermometer.
F:MF58 Series Model and Specification

Model Rated resistance value(R25) B value Operating temperature Dissipation factor(mW/℃) Thermal time constant(S)
Resistance value
(KΩ)
Tolerance
(± %)
Nominal value
(K)
MF58-202-3435 2 ±1%
±2%
±3%
±5%
3435 -40℃ 
~
+250℃
≥2.0
Still air
≤12
Still air
MF58-502-3470 5 3470
MF58-103-3435 10 3435
MF58-103-3600 10 3600
MF58-103-3700 10 3700
MF58-103-3950 10 3950
MF58-103-4100 10 4100
MF58-203-3950 20 3950
MF58-233-3950 23 3950
MF58-303-3950 30 3950
MF58-40.27-3979 40.27 3979
MF58-473-3950 47 3950
MF58-503-3950 50 3950
MF58-503-4050 50 4050
MF58-104-3899 100 3899
MF58-104-3950 100 3950
MF58-104-3990 100 3990
MF58-104-4050 100 4050
MF58-104-4200 100 4200
MF58-204-4260 200 4260 -40℃ 
~
+300℃
MF58-504-4260 500 4260
MF58-504-4400 500 4400
MF58-105-4400 1000   4400
 
Commonly used 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              
 
PREV:Precision MF52 Small Black Beads Epoxy ntc Resistance
NEXT:The role of Single-ended glass sealed type thermistor



Skype

WhatsApp

WangWang

QQ
Email me

Mail to us