MF-RX/72 SERIES, REV. K, 10/15

Typical Time to Trip at 23 ˚C

Specifications are subject to change without notice.

The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.

Users should verify actual device performance in their specific applications.

MF-RX/72 Series - PTC Resettable Fuses

100

10

1

0.1

0.01

0.001

0.1

1

10

100

Fault Current (Amps)

0.01

0.001

1

10

100

0.1

1

10

100

1000

Fault Current (Amps)

The Time to Trip curves represent typical performance of a device in a simulated application environment. Actual performance in specific customer applications

may differ from these values due to the influence of other variables.

Thermal Derating Chart - Ihold (Amps)

Model

Ambient Operating Temperature

-40

°C

-20

°C0 °C

23

°C

40

°C

50

°C

60

°C

70

°C

85

°C

MF-RX020/72

0.31

0.27

0.24

0.20

0.16

0.14

0.13

0.11

0.08

MF-RX025/72

0.39

0.34

0.30

0.25

0.20

0.18

0.16

0.14

0.10

MF-RX030/72

0.47

0.41

0.36

0.30

0.24

0.22

0.19

0.16

0.12

MF-RX040/72

0.62

0.54

0.48

0.40

0.32

0.29

0.25

0.22

0.16

MF-RX050/72

0.78

0.68

0.60

0.50

0.41

0.36

0.32

0.27

0.20

MF-RX065/72

1.01

0.88

0.77

0.65

0.53

0.47

0.41

0.35

0.26

MF-RX075/72

1.16

1.02

0.89

0.75

0.61

0.54

0.47

0.41

0.30

MF-RX090/72

1.40

1.22

1.07

0.90

0.73

0.65

0.57

0.49

0.36

MF-RX110/72

1.71

1.50

1.31

1.10

0.89

0.79

0.69

0.59

0.44

MF-RX135/72

2.09

1.84

1.61

1.35

1.09

0.97

0.85

0.73

0.54

MF-RX160/72

2.48

2.18

1.90

1.60

1.30

1.15

1.01

0.86

0.64

MF-RX185/72

2.87

2.52

2.20

1.85

1.50

1.33

1.17

1.00

0.74

MF-RX250/72

3.88

3.40

2.98

2.50

2.03

1.80

1.58

1.35

1.00

MF-RX300/72

4.65

4.08

3.57

3.00

2.43

2.16

1.89

1.62

1.20

MF-RX375/72

5.81

5.10

4.46

3.75

3.04

2.70

2.36

2.03

1.50