China sensor manufacturers

China Temperature Sensor & Thermistor manufacturer

Principle of Precision Epoxy resin MF52 Bead Thermistor

Product Item: Principle of Precision Epoxy resin MF52 Bead Thermistor
Category: NTC
Epoxy resin sealed temperature measuring type (MF52) thermistors were tested in two groups for stability.
The first group of components performs high-precision measurement of short-term reproducibility within a week.
The second group of components examined their drift in resistance values at room temperature for up to five or four months.
The measurement results show that its short-term and long-term stability can be compared with similar foreign products, which is enough to be used as a precision temperature sensing element in the medium temperature range. The first group of 16 thermistors tested were all produced by Beijing Glass Institute. The test was performed at the Thermal Engineering Department of the National Metrology Institute.

  • PRODUCT DETAIL

Epoxy resin sealed temperature measuring type (MF52) thermistors were tested in two groups for stability.
The first group of components performs high-precision measurement of short-term reproducibility within a week.
The second group of components examined their drift in resistance values at room temperature for up to five or four months.
The measurement results show that its short-term and long-term stability can be compared with similar foreign products, which is enough to be used as a precision temperature sensing element in the medium temperature range. The first group of 16 thermistors tested were all produced by Beijing Glass Institute. The test was performed at the Thermal Engineering Department of the National Metrology Institute.
A: Dimension drawings

Thermistor b value

 

Second: Features:
 
1: MF5A series of products for the co-lead epoxy coating type
2: Wide resistance range: 1KΩ ~ 500KΩ
3: resistance and B value accuracy
4: test accuracy
5: small size, reflecting the speed
6: a long time to stabilize the work, good consistency
7: Operating temperature range: -40 ~ 125 ℃
Three: product model description
 
MF  5A  103  F  3950  
①  ②   ③  ④   ⑤      
①MF ¬ - negative temperature coefficient (NTC) thermistor code.
② 5A - epoxy 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)
Foru: MF5A series model specifications
Precautions:
      1) As the MF5A series of small size,Solder joints small,Lead at both ends can not withstand excessive tension.
      2) When welding,Please at least 5mm from the root of the lead wire welding,Welding time should be as short as possible.
Six: The main technical parameters

Product Model

Nominal resistance value

B value

rated power

Dissipation factor

Thermal time constant

Operating temperature

R25(Ω)

(25/50℃)

(mw) (mW/℃)

(S)

(℃)

MF52□□□3100
MF52□□□3270
MF52□□□3380
MF52□□□3470
MF52□□□3600
MF52□□□3950
MF52□□□4000
MF52□□□4050
MF52□□□4150
MF52□□□4300
MF52□□□4500

1~3K
2~10K
3~10K
5~10K
5~10K
5~100K
20~100K
20~200K
100~250K
200~1000K
500~1000K

3100
3270
3380
3470
3600
3950
4000
4050
4150
4300
4500

≤50
≥2.0




Still air
≤15




Still air
-55~+125℃

 

Product Application:
 
Air conditioning,Heating equipment,Medical equipment,Temperature control instruments,Electronic gifts,Electronic temperature hygrometer,Automotive temperature measurement,Electronic calendar,Rechargeable battery pack and charger.

 

Model
Rated resistance value(R25)
B value
Operating temperature
Dissipation factor(mW/℃)
Thermal time constant(S)
resistance
(KΩ)
Allowable deviation
(± %)
Nominal value
(K)
MF5A-102-3950
1
±1%
±2%
±3%
±5%
3950
-40℃
~
+125℃
≥3.0
Still air
≤7
Still air
MF5A-202-3435
2
3435
MF5A-2.252-3935
2.252
3935
MF5A-472-3950
4.7
3950
MF5A-502-3470
5
3470
MF5A-502-3950
5
3950
MF5A-682-3977
6.8
3977
MF5A-682-4200
6.8
4200
MF5A-103-3435
10
3435
MF5A-103-3470
10
3470
MF5A-103-3600
10
3600
MF5A-103-3950
10
3950
MF5A-103-3977
10
3977
MF5A-103-4100
10
4100
MF5A-203-3950
20
3950
MF5A-233-3950
23
3950
MF5A-303-3950
30
3950
MF5A-40.27-3950
40.27
3950
MF5A-473-3950
47
3950
MF5A-49.12-3950
49.12
3950
MF5A-503-3950
50
3950
MF5A-503-3990
50
3990
MF5A-503-4050
50
4050
MF5A-104-3950
100
3950
MF5A-104-3990
100
3990
MF5A-104-4200
100
4200
MF5A-154-4400
150
4400
PREV:China Precision NTC Termistor manufacturer
NEXT:Precision MF52 Small Black Beads Epoxy ntc Resistance



Skype

WhatsApp

WangWang

QQ
Email me

Mail to us