Features
Applications
Almost anywhere there is a low voltage
power supply and a load to be protected,
including:
■ Computers & peripherals
■ General electronics
■ Radial Leaded Devices
■ Cured, flame retardant epoxy polymer
insulating material meets UL 94V-0
requirements
R
1
1
0
0180T
■ RoHS compliant*
■ Automotive applications
T
V Rheinland
■ Agency recognition:
MF-R Series - PTC Resettable Fuses
Electrical Characteristics
1 Hour (R )
Post-Trip
Resistance
Max. Time
To Trip
Tripped
Power
Dissipation
1
Initial
Resistance
I
I
trip
hold
V max.
Model
I max.
Amps
Amperes
at 23 °C
Ohms
at 23 °C
Ohms
at 23 °C
Amperes
at 23 °C
Seconds
at 23 °C
Watts
at 23 °C
Volts
Hold
Trip
0.10
0.20
0.34
0.40
0.50
0.60
0.80
1.00
1.30
1.50
1.80
1.80
2.20
2.70
3.20
3.70
5.00
5.00
6.00
8.00
10.00
12.00
14.00
16.00
18.00
22.00
Min.
Max.
11.1
4.50
3.20
2.84
1.95
1.36
0.86
0.77
0.48
0.40
0.31
0.12
0.18
0.115
0.105
0.07
0.048
0.048
0.05
0.03
0.03
0.02
0.02
0.02
0.01
0.01
Max.
22.0
7.50
8.00
4.40
3.00
2.10
1.29
1.17
0.72
0.60
0.47
0.22
0.27
0.17
0.15
0.11
0.07
0.07
0.08
0.05
0.05
0.04
0.03
0.03
0.02
0.014
Typ.
0.22
0.38
0.48
0.40
0.45
0.50
0.55
0.75
0.90
0.90
1.00
0.60
0.70
0.80
0.90
1.00
1.20
1.20
2.00
2.50
3.00
3.50
3.80
4.00
4.20
4.50
MF-R005
MF-R010
MF-R017
MF-R020
MF-R025
MF-R030
MF-R040
MF-R050
MF-R065
MF-R075
MF-R090
MF-R090-0-9
MF-R110
MF-R135
MF-R160
MF-R185
MF-R250
MF-R250-0-10
MF-R300
MF-R400
MF-R500
MF-R600
MF-R700
MF-R800
MF-R900
MF-R1100
60
60
60
60
60
60
60
60
60
60
60
30
30
30
30
30
30
30
30
30
30
30
30
30
30
16
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
40
100
0.05
0.10
0.17
0.20
0.25
0.30
0.40
0.50
0.65
0.75
0.90
0.90
1.10
1.35
1.60
1.85
2.50
2.50
3.00
4.00
5.00
6.00
7.00
8.00
9.00
7.3
0.5
0.5
0.85
1.0
1.25
1.5
2.0
2.5
3.25
3.75
4.5
5.0
4.0
2.50
2.00
3.0
1.50
2.2
1.00
2.5
0.76
3.0
0.52
3.8
0.41
4.0
0.27
5.3
0.18
6.3
0.14
7.2
0.07
4.5
5.5
6.75
8.0
5.9
0.10
6.6
0.065
0.055
0.040
0.025
0.025
0.020
0.010
0.010
0.005
0.005
0.005
0.005
0.003
7.3
8.0
9.25
12.5
12.5
15.0
20.0
25.0
30.0
35.0
40.0
45.0
40.0
8.7
10.3
10.3
10.8
12.7
14.5
16.0
17.5
18.8
*20.0
20.0
11.00
*Tested at 40 amps
Environmental Characteristics
Operating/Storage Temperature ........................-40 °C to +85 °C
Maximum Device Surface Temperature
in Tripped State ................................................125 °C
Passive Aging......................................................+85 °C, 1000 hours .................................... 5 ꢀ typical resistance change
Humidity Aging....................................................+85 °C, 85 ꢀ R.H. 1000 hours.................... 5 ꢀ typical resistance change
Thermal Shock....................................................-40 °C to +85 °C, 10 times.......................... 10 ꢀ typical resistance change
Solvent Resistance ............................................MIL-STD-202, Method 215 ........................No change
Vibration..............................................................MIL-STD-883C, Method 2007.1, ................No change
Condition A
Test Procedures And Requirements For Model MF-R Series
Test
Test Conditions
Accept/Reject Criteria
Visual/Mech. ......................................................Verify dimensions and materials..................Per MF physical description
Resistance ..........................................................In still air @ 23 °C ........................................Rmin ≤ R ≤ Rmax
Time to Trip ........................................................5 times Ihold, Vmax, 23 °C..........................T ≤ max. time to trip (seconds)
Hold Current ......................................................30 min. at Ihold............................................No trip
Trip Cycle Life ....................................................Vmax, Imax, 100 cycles ..............................No arcing or burning
Trip Endurance....................................................Vmax, 48 hours ..........................................No arcing or burning
UL File Number ..................................................E 174545S
CSA File Number ................................................CA 110338
TÜV File Number ................................................R2057213
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex. Product manufactured with a date code later than April 1, 2005 is RoHS compliant.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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