MF-USMF Datasheet, PDF (1/4 Pages) Bourns Electronic Solutions – MF-USMF Series - PTC Resettable Fuses

*RoHS ^COMPLIANT
Features
■ Fast tripping resettable circuit protection
■ Surface mount packaging for automated
assembly
■ Small footprint size (1210)
■ RoHS compliant*
■ Agency recognition*:
T V Rheinland
Applications
■ Game consoles
■ PC motherboards
■ USB current-limiting compliance
■ IEEE 1394 ports
■ Mobile phones
■ Digital cameras
MF-USMF Series - PTC Resettable Fuses
Electrical Characteristics
Model
V max.
Volts
MF-USMF005
30
MF-USMF010
30
MF-USMF020
30
MF-USMF035
6
MF-USMF050
13.2
MF-USMF075
6
MF-USMF110
6
MF-USMF150*
6
*UL approval pending.
I max.
Amps
10
10
10
40
40
40
40
40
Ihold
Itrip
Amperes
at 23 °C
Hold
Trip
0.05
0.15
0.10
0.30
0.20
0.40
0.35
0.75
0.50
1.00
0.75
1.50
1.10
2.20
1.50
3.00
Resistance
Ohms
at 23 °C
RMin. R1Max.
2.800 50.000
0.800 15.000
0.400
5.000
0.200
1.300
0.180
0.900
0.070
0.450
0.050
0.210
0.030
0.110
Max. Time
To Trip
Amperes Seconds
at 23 °C at 23 °C
0.25
1.50
0.50
0.60
8.00
0.02
8.00
0.20
8.00
0.10
8.00
0.10
5.00
1.00
5.00
5.00
Tripped
Power
Dissipation
Watts
at 23 °C
Typ.
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
Environmental Characteristics
Operating 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 ....................................................+85 °C to -40 °C, 20 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-USMF 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 ≤ R1max
Time to Trip ....................................At specified current, 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
Solderability ....................................ANSI/J-STD-002 ............................................................95 % min. coverage
UL File Number ..................................E174545
http://www.ul.com/ Follow link to Certifications, then UL File No., enter E174545
CSA File Number ..............................CA110338
http://directories.csa-international.org/ Under “Certification Record” and “File Number” enter 110338-0-000
TÜV Certificate Number ....................R 02057213
http://www.tuvdotcom.com/ Follow link to “other certificates”, enter File No. 2057213
Thermal Derating Chart - Ihold (Amps)
Model
MF-USMF005
MF-USMF010
MF-USMF020
MF-USMF035
MF-USMF050
MF-USMF075
MF-USMF110
MF-USMF150
-40 °C
0.08
0.15
0.32
0.51
0.76
1.10
1.60
2.30
-20 °C
0.07
0.13
0.28
0.46
0.66
0.97
1.42
2.02
0 °C
0.06
0.12
0.24
0.40
0.58
0.86
1.26
1.76
Ambient Operating Temperature
23 °C
0.05
0.10
0.20
0.34
0.48
0.72
1.10
1.43
40 °C
0.04
0.09
0.18
0.30
0.42
0.64
0.94
1.24
50 °C
0.04
0.08
0.16
0.27
0.38
0.58
0.86
1.11
60 °C
0.03
0.07
0.14
0.24
0.35
0.55
0.80
1.00
70 °C
0.03
0.06
0.12
0.22
0.29
0.47
0.70
0.85
85 °C
0.02
0.05
0.10
0.18
0.23
0.39
0.58
0.65
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.