MF-RX375/72-0 Bourns Inc., MF-RX375/72-0 Datasheet - Page 3
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MF-RX375/72-0
Manufacturer Part Number
MF-RX375/72-0
Description
FUSE PTC RESET 3.75A HOLD
Manufacturer
Bourns Inc.
Series
MF-RXr
Type
PTC Resettable Fusesr
Specifications of MF-RX375/72-0
R Min/max
0.030 ~ 0.050 Ohm
Voltage - Max
72V
Time To Trip
24s
Current - Hold (ih) (max)
3.75A
Current - Trip (it)
7.5A
Current - Max
40A
Package / Case
Radial
Hold Current
3.75 Amps
Trip Current
7.5 Amps
Current Rating (max)
40 Amps
Resistance
0.05 Ohms
Maximum Voltage
72 VoltsDC
Termination Style
Radial
Mounting Style
Through Hole
Dimensions
23.51 mm L x 3.1 mm W x 29.51 mm H
Lead Spacing
10.2 mm
Operating Temperature Range
- 40 C to + 85 C
Brand/series
MF-RX/72 Series
Current, Rating
3.75 A
Mounting Type
PCB
Primary Type
Resettable
Resistance, Dc
0.03 Ohms
Termination
Radial
Voltage, Rating
72 VDC
Holding Current
3.75A
Tripping Current
7.5A
Initial Resistance Max
0.05ohm
Operating Voltage
72V
Ptc Fuse Case
Radial Leaded
External Depth
3.1mm
External Width
23.51mm
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Other names
MF-RX375/72
MF-RX375/72
MF-RX375/72
The Time to Trip curves represent typical performance of a device in a simulated application environment. Actual performance in specifi c customer applications
may differ from these values due to the infl uence of other variables.
MF-RX/72 SERIES, REV. F, 04/10
Specifi cations are subject to change without notice.
Customers should verify actual device performance in their specifi c applications.
Typical Time to Trip at 23 ˚C
Thermal Derating Chart - I hold (Amps)
MF-RX020/72
MF-RX025/72
MF-RX030/72
MF-RX040/72
MF-RX050/72
MF-RX065/72
MF-RX075/72
MF-RX090/72
MF-RX110/72
MF-RX135/72
MF-RX160/72
MF-RX185/72
MF-RX250/72
MF-RX300/72
MF-RX375/72
MF-RX/72 Series - PTC Resettable Fuses
Model
0.001
0.01
100
0.1
10
1
0.1
-40 °C
0.31
0.39
0.47
0.62
0.78
1.01
1.16
1.40
1.71
2.09
2.48
2.87
3.88
4.65
5.81
Fault Current (Amps)
1
-20 °C
0.27
0.34
0.41
0.54
0.68
0.88
1.02
1.22
1.50
1.84
2.18
2.52
3.40
4.08
5.10
10
0 °C
0.24
0.30
0.36
0.48
0.60
0.77
0.89
1.07
1.31
1.61
1.90
2.20
2.98
3.57
4.46
Ambient Operating Temperature
23 °C
0.20
0.25
0.30
0.40
0.50
0.65
0.75
0.90
1.10
1.35
1.60
1.85
2.50
3.00
3.75
100
40 °C
0.16
0.20
0.24
0.32
0.41
0.53
0.61
0.73
0.89
1.09
1.30
1.50
2.03
2.43
3.04
0.001
1000
0.01
100
0.1
10
1
50 °C
1
0.14
0.18
0.22
0.29
0.36
0.47
0.54
0.65
0.79
0.97
1.15
1.33
1.80
2.16
2.70
Fault Current (Amps)
60 °C
0.13
0.16
0.19
0.25
0.32
0.41
0.47
0.57
0.69
0.85
1.01
1.17
1.58
1.89
2.36
10
70 °C
0.11
0.14
0.16
0.22
0.27
0.35
0.41
0.49
0.59
0.73
0.86
1.00
1.35
1.62
2.03
100
85 °C
0.08
0.10
0.12
0.16
0.20
0.26
0.30
0.36
0.44
0.54
0.64
0.74
1.00
1.20
1.50