NTC Thermal Resistor MF72
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  • NTC Thermal Resistor MF72

NTC Thermal Resistor MF72

A thermistor is a resistor made of a special material whose resistance changes with temperature. Based on the coefficient of resistance change, thermistors can be divided into two categories: positive temperature coefficient thermistors (PTC) and negative temperature coefficient thermistors (NTC). Small size,strong power and strong capability of surge current protection Fast response to surge corrent Big material constant(B Value), Small remain resistance Longevity of service ,High reliability SGS:ROHS MF72 Type: -5,-7,-9,-11,-13,-15,-20,-25,MF73T Type


Details


Product Overview

 

Positive Temperature Coefficient Thermistor (PTC):

 

Material: PTC thermistors are generally made of barium titanate as the main material, with appropriate amounts of rare earth elements added, and are sintered at high temperatures.
Working Principle: At low temperatures, conductive electrons can easily cross the grain interface, resulting in a low resistance value; when the temperature rises to the Curie point, the internal electric field is disrupted, and the resistance value increases sharply.
Application: PTC thermistors have constant temperature, temperature adjustment, and automatic temperature control functions, and are suitable for overheat detection in electrical devices such as motors.

 

Negative Temperature Coefficient Thermistor (NTC):

 

Material: NTC thermistors are generally made of metal oxide materials such as cobalt oxide and nickel oxide.

Working principle: These metal oxides have relatively few electrons and holes, resulting in high resistance. As the temperature increases, the number of electrons and holes increases, and the resistance decreases. Applications: NTC thermistors are widely used in temperature measurement and control due to their high sensitivity, wide operating temperature range, and small size.

 

Parameter

 

Part NO (R25 MF72)  Maximum steady-state current (A)  Approximate resistance value at maximum current (Ω)  Dissipat coefficient (Mω/℃)  Thermal constant approximately (S)  operating temperature (℃)
5D-5 5 1 15 17 -40~~+180
10D-5 10 0.7
60D-5 60 0.3
200D-5 200 0.1
5D-7 5 2 16 27
8D-7 8 1
10D-7 10 1
12D-7 12 1
16D-7 16 0.7
20D-7 20 0.6
22D-7 22 0.6
33D-7 33 0.5
200D-7 200 0.2
3D-9 3 4
4D-9 4 3 16 38
5D-9 5 3
6D-9 6 2
8D-9 8 2
10D-9 10 2
12D-9 12 1
16D-9 16 1
20D-9 20 1
22D-9 22 1
30D-9 30 1
33D-9 33 1
50D-9 50 1
60D-9 60 0.8
80D-9 80 0.8
120D-9 120 0.8
200D-9 200 0.5
400D-9 400 0.2
2.5D-11 2.5 5 17 43 -40~~+200
3D-11 3 5
4D-11 4 4
5D-11 5 4
6D-11 6 3
8D-11 8 3
10D-11 10 3
12D-11 12 2
16D-11 16 2
20D-11 20 2
22D-11 22 2
30D-11 30 1.5
33D-11 33 1.5
50D-11 50 1.5
60D-11 60 1.5
80D-11 80 1.2
1.3D-13 1.3 7 18 66
1.5D-13 1.5 7 18 66
2.5D-13 2.5 6
3D-13 3 6
4D-13 4 5
5D-13 5 5
6D-13 6 4
7D-13 7 4
8D-13 8 4
10D-13 10 4
12D-13 12 3
15D-13 15 3
16D-13 16 3
20D-13 20 2.5
30D-13 30 3
47D-13 47 2
120D-13 120 1.2
1.3D-15 1.3 8 21 75
1.5D-15 1.5 8
2.5D-15 2.5 7
3D-15 3 7
5D-15 5 6
6D-15 6 5
7D-15 7 5
8D-15 8 5
10D-15 10 5
12D-15 12 4
15D-15 15 4
16D-15 16 4
20D-15 20 4
30D-15 30 3.5
47D-15 47 3
120D-15 120 1.8
0.7D-20 0.7 11
1.3D-20 1.3 9 28 113
3D-20 3 8
5D-20 5 7
6D-20 6 6
8D-20 8 6
10D-20 10 6
12D-20 12 5
16D-20 16 5
0.7D-25 0.7 12 30 130
1.5D-25 1.5 10
3D-25 3 9
5D-25 5 8
8D-25 8 7
10D-25 10 7
12D-25 12 6
16D-25 16 6

 

Part NO (R25 MF72)  Maximum steady-state current (A)  Approximate resistance value at maximum current (Ω)  Dissipation coefficient (Mw/℃)  The thermal time constant is approximately (S)  operating temperature (℃)  Chip diameter
25/6 25 6 5 ≧28 ≦110 φ25mm
30/6 30 6
47/5 47 5
120/3 120 3
0.5/22 0.5 22 7 ≧30 ≦130 φ30mm
0.7/22 0.7 22
1/20 1 20
1.5/19 1.5 19
2/18 2 18
2.5/16 2.5 16
3/15.5 3 15.5
4/15 4 15
4.7/14 4.7 14
5/14 5 14
6.8/12 6.8 12
7/11 7 11
8/10 8 10
10/10 10 10
12/9 12 9
15/8 15 8
18/8 18 8
20/8 20 8
0.5/30 0.5 30 8 ≧40 ≦190 φ30mm
1/30 1 30
1.5/25 1.5 25
2/23 2 23
2.5/20 2.5 20
3/19.5 3 19.5
4/19 4 19
4.7/18 4.7 18
5/17 5 17
6/17 6 17
6.8/16 6.8 16
7/15 7 15
8/14 8 14
10/13 10 13
12/12 12 12
15/11 15 11
18/10 18 10
20/10 20 10
0.5/32 0.5 32 9 ≧45 ≦280 φ35mm
1/32 1 32
1.5/28 1.5 28
2/25 2 25
2.5/23 2.5 23
3/22 3 22
4/21 4 21
4.7/20 4.7 20
5/19 5 19
6.8/18 6.8 18
7/17 7 17
8/16 8 16
10/15 10 15
12/14 12 14
15/13 15 13
18/11 18 11
20/10 20 10

 

Application Circuit Diagram

 

 

 

Product Circuit Diagram

 

 

Structure and Dimension

 

 

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