Features
Applications
nꢀ RadialꢀLeadedꢀDevices
Almostꢀanywhereꢀthereꢀisꢀaꢀlowꢀvoltageꢀpowerꢀ
supplyꢀandꢀaꢀloadꢀtoꢀbeꢀprotected,ꢀincluding:
nꢀ Cured,ꢀflameꢀretardantꢀepoxyꢀpolymerꢀꢀ
insulatingꢀmaterialꢀmeetsꢀULꢀ94V-0ꢀꢀ
requirements
R1
10
7180T
nꢀ Computersꢀ&ꢀperipherals
nꢀ Generalꢀelectronics
nꢀ RoHSꢀcompliant*ꢀandꢀhalogenꢀfree**
nꢀ Agencyꢀrecognition:ꢀꢀ
MF-R Series - PTC Resettable Fuses
Electrical Characteristics
1 Hour (R )
1
Tripped
Power
Dissipation
Initial
Resistance
Max. Time
to Trip
Agency
Recognition
I
I
Post-Trip
hold
trip
Resistance
V
I
max
max
Model
Ohms
Ohms
Watts
at 23 °C
Amps
at 23 °C
cUL
TÜV
at 23 °C
at 23 °C
at 23 °C
Volts
Amps
Min.
Max.
Max.
Amps
Seconds
Typ.
E174545 R50366745
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
0.20
0.34
0.40
0.50
0.60
0.80
1.00
1.30
1.50
1.80
1.80
2.20
7.3
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
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
0.5
0.5
0.85
1.0
1.25
1.5
2.0
5.0
4.0
3.0
2.2
2.5
3.0
3.8
4.0
5.3
6.3
7.2
5.9
6.6
7.3
8.0
8.7
10.3
10.3
10.8
12.7
14.5
16.0
17.5
18.8
20.0
20.0
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
4.20
4.50
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
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
2.50
2.00
1.50
1.00
0.76
0.52
0.41
0.27
0.18
0.14
0.07
0.10
2.5
3.25
3.75
4.5
4.5
5.5
6.75
8.0
9.25
12.5
12.5
15.0
20.0
25.0
30.0
35.0
40.0
40.0
40.0
2.70 0.065 0.115
3.20 0.055 0.105
3.70 0.040 0.07
5.00 0.025 0.048
5.00 0.025 0.048
6.00 0.020 0.05
8.00 0.010 0.03
5.00 10.00 0.010 0.03
6.00 12.00 0.005 0.02
7.00 14.00 0.005 0.02
8.00 16.00 0.005 0.02
9.00 18.00 0.005 0.01
11.00 22.00 0.003 0.01
Environmental Characteristics
Item
Condition
Criteria
Operating Temperature
Recommended Storage
Passive Aging
Humidity Aging
Thermal Shock
Solvent Resistance
-40 °C to +85 °C
+40 °C max. / 70 % RH max.
+85 °C, 1000 hours
+85 °C, 85 % R.H. 1000 hours
-40 °C to +85 °C, 10 times
MIL-STD-202, Method 215
±5 % typical resistance change
±5 % typical resistance change
±10 % typical resistance change
No change (marking still legible)
Vibration
MIL-STD-883C, Method 2007.1 Condition A
See Note
No change (R
< R < R
)
min
1max
Moisture Sensitivity Level (MSL)
ESD Classification
Class 6 (per AEC-Q200-2, HBM)
Test Procedures and Requirements
Item
Visual/Mechanical
Resistance
Time to Trip
Hold Current
Trip Cycle Life
Trip Endurance
Solderability
Test Condition
Verify dimensions and materials
In still air @ 23 °C
Accept/Reject Criteria
Per MF physical description
≤ R ≤ R
T ≤ max. time to trip (seconds)
No trip
No arcing or burning
No arcing or burning
95 % min. coverage
R
min
max
At specified current, V
, 23 °C, still air
max
30 min. at I
hold
V
V
, I
, 100 cycles
max max
max
, 48 hours
245 °C ±5 °C, 5 seconds
**ꢀ Bournsꢀfollowsꢀtheꢀprevailingꢀdefinitionꢀofꢀ“halogenꢀfree”ꢀinꢀtheꢀindustry.ꢀꢀBournsꢀconsidersꢀaꢀproductꢀ
toꢀbeꢀ“halogenꢀfree”ꢀifꢀ(a)ꢀtheꢀBromineꢀ(Br)ꢀcontentꢀisꢀ900ꢀppmꢀorꢀless;ꢀ(b)ꢀtheꢀChlorineꢀ(Cl)ꢀcontentꢀꢀ
ꢀ
isꢀ900ꢀppmꢀorꢀless;ꢀandꢀ(c)ꢀtheꢀtotalꢀBromineꢀ(Br)ꢀandꢀChlorineꢀ(Cl)ꢀcontentꢀisꢀ1500ꢀppmꢀorꢀless.
WARNING Cancer and Reproductive Harm
www.P65Warnings.ca.gov
Specificationsꢀareꢀsubjectꢀtoꢀchangeꢀwithoutꢀnotice.ꢀUsersꢀshouldꢀverifyꢀactualꢀdeviceꢀperformanceꢀinꢀ
theirꢀspecificꢀapplications.ꢀTheꢀproductsꢀdescribedꢀhereinꢀandꢀthisꢀdocumentꢀareꢀsubjectꢀtoꢀspecificꢀ
disclaimersꢀasꢀsetꢀforthꢀonꢀtheꢀlastꢀpageꢀofꢀthisꢀdocument,ꢀandꢀatꢀwww.bourns.com/legal/disclaimer.pdf.
*ꢀ RoHSꢀDirectiveꢀ2015/863,ꢀMarꢀ31,ꢀ2015ꢀandꢀAnnex.