Features
Applications
Almostꢀanywhereꢀthereꢀisꢀaꢀlowꢀvoltageꢀpowerꢀ
supplyꢀandꢀaꢀloadꢀtoꢀbeꢀprotected,ꢀincluding:
nꢀ RadialꢀLeadedꢀDevices
nꢀ Cured,ꢀflameꢀretardantꢀepoxyꢀpolymerꢀꢀ
R1
10
7180T
ꢀ
ꢀ
insulatingꢀmaterialꢀmeetsꢀULꢀ94V-0ꢀꢀ
requirements
nꢀ Computersꢀ&ꢀperipherals
nꢀ Generalꢀelectronics
nꢀ RoHSꢀcompliant*ꢀandꢀhalogenꢀfree**
nꢀ Agencyꢀrecognition:ꢀꢀ
nꢀ Automotiveꢀapplications
ꢀ ꢀꢀMF-RꢀSeriesꢀ-ꢀPTCꢀResettableꢀFuses
Electrical Characteristics
1 Hour (R )
1
Tripped
Power
Dissipation
Watts
at 23 °C
Typ.
Initial
Max. Time
to Trip
Ihold
Itrip
Post-Trip
Resistance
Ohms
at 23 °C
Max.
22.0
Resistance
I max.
Amps
V max.
Model
Volts
Amperes
at 23 °C
Hold
Ohms
at 23 °C
Amperes Seconds
at 23 °C
at 23 °C
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
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
11.00
7.3
2.50
2.00
1.50
0.5
0.5
0.85
1.0
5.0
4.0
3.0
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
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
2.2
1.00
0.76
0.52
0.41
1.25
1.5
2.0
2.5
3.0
3.8
2.5
4.0
5.3
6.3
7.2
0.27
0.18
0.14
0.07
3.25
3.75
4.5
4.5
5.5
5.9
6.6
0.10
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
6.75
8.0
7.3
8.0
8.7
9.25
12.5
12.5
15.0
20.0
25.0
30.0
35.0
40.0
40.0
40.0
10.3
10.3
10.8
12.7
14.5
16.0
17.5
18.8
20.0
20.0
4.20
4.50
0.014
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
Moisture Sensitivity Level..................................... 1
ESD Classification (HBM)..................................... 6
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 ..........................................................E174545
http://www.ul.com/ Follow link to Online Certificates Directory, then enter UL File No.
E174545, or click here
TÜV Certificate ...........................................................Certificate Number Available on Request, or click here
*ꢀ RoHSꢀDirectiveꢀ2002/95/ECꢀJan.ꢀ27,ꢀ2003ꢀincludingꢀannexꢀandꢀRoHSꢀRecastꢀ2011/65/EUꢀJuneꢀ8,ꢀ2011.ꢀ
**ꢀ Bournsꢀfollowsꢀtheꢀprevailingꢀdefinitionꢀofꢀ“halogenꢀfree”ꢀinꢀtheꢀindustry.ꢀꢀBournsꢀconsidersꢀaꢀproductꢀtoꢀbeꢀ“halogenꢀfree”ꢀifꢀ(a)ꢀtheꢀBromineꢀ(Br)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀ(b)ꢀtheꢀChlorineꢀ(Cl)ꢀcontentꢀisꢀꢀ
ꢀꢀꢀꢀꢀꢀ900ꢀppmꢀorꢀless;ꢀandꢀ(c)ꢀtheꢀtotalꢀBromineꢀ(Br)ꢀandꢀChlorineꢀ(Cl)ꢀcontentꢀisꢀ1500ꢀppmꢀorꢀless.
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.
Usersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀtheirꢀspecificꢀapplications.ꢀ
Theꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀdisclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/legal/disclaimer.pdf.