Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Electrical Characteristics
Max. Time Tripped
Ihold Itrip To Tr i p Power
Resistance
Dissipation
Model Amperes Ohms Amperes Seconds Watts
V max. I max.
at 23 °C at 23 °C at 23 °C at 23 °C at 23 °C
Volts Amps
Hold Trip RMin. R1Max. Typ.
MF-NSMF012 30.0 10 0.12 0.29 1.50 6.00 1.0 0.20 0.4
MF-NSMF050 13.2 100 0.50 1.00 0.15 0.70 8.0 0.10 0.4
MF-NSMF075 6.0 100 0.75 1.50 0.10 0.29 8.0 0.10 0.4
MF-NSMF110 6.0 100 1.10 1.80 0.06 0.20 8.0 0.10 0.6
MF-NSMF150 6.0 100 1.50 3.00 0.03 0.13 8.0 0.30 0.6
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
Environmental Characteristics
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
Test Procedures And Requirements For Model MF-MSMF Series
MF-NSMF Series - PTC Resettable Fuses
Features
■Compact design to save board space -
1206 footprint
■Small size results in very fast time to
react to fault events
■Symmetrical design
■Low profile
■Agency recognition:
Applications
■USB port protection - On the Go and 2.0
■PC motherboards - Plug and Play
protection
■Mobile phones - Battery and port
protection
■PDAs / Digital Cameras
■Game console port protection
NEW!
Thermal Derating Chart - Ihold / Itrip (Amps)
Ambient Operating Temperature
Model -40 ˚C -20 ˚C 0 ˚C 23 ˚C 40 ˚C 50 ˚C 60 ˚C 70 ˚C 85 ˚C
MF-NSMF012 0.19 / 0.38 0.17 / 0.34 0.15 / 0.30 0.12 / 0.24 0.11 / 0.22 0.10 / 0.20 0.09 / 0.18 0.08 / 0.16 0.07 / 0.14
MF-NSMF050 0.76 / 1.52 0.68 / 1.36 0.59 / 1.18 0.50 / 1.00 0.44 / 0.88 0.40 / 0.80 0.35 / 0.70 0.32 / 0.64 0.26 / 0.52
MF-NSMF075 1.11 / 2.22 1.00 / 2.00 0.85 / 1.70 0.75 / 1.50 0.67 / 1.34 0.61 / 1.22 0.52 / 1.04 0.50 / 1.00 0.42 / 0.84
MF-NSMF110 1.64 / 3.28 1.46 / 2.92 1.30 / 2.60 1.10 / 2.20 0.92 / 1.84 0.83 / 1.66 0.80 / 1.60 0.65 / 1.30 0.52 / 1.04
MF-NSMF150 2.20 / 4.40 1.99 / 3.98 1.77 / 3.54 1.50 / 3.00 1.34 / 2.68 1.23 / 2.46 1.10 / 2.20 1.01 / 2.02 0.84 / 1.68
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Product Dimensions
Packaging: 2000 pcs. per reel.
MF-NSMF Series - PTC Resettable Fuses
ABCDE
Model Min. Max. Min. Max. Min. Max. Min. Min.
MF-NSMF012 3.00 3.40 1.40 1.80 0.7 1.10 0.25 0.127
(0.118) (0.134) (0.055) (0.071) (0.028) (0.043) (0.010) (0.005)
MF-NSMF050 3.00 3.40 1.40 1.80 0.48 0.85 0.25 0.127
(0.118) (0.134) (0.055) (0.071) (0.019) (0.033) (0.010) (0.005)
MF-NSMF075 3.00 3.40 1.40 1.80 0.48 0.85 0.25 0.127
(0.118) (0.134) (0.055) (0.071) (0.019) (0.033) (0.010) (0.005)
MF-NSMF110 3.00 3.40 1.40 1.80 0.7 1.35 0.25 0.127
(0.118) (0.134) (0.055) (0.071) (0.028) (0.053) (0.010) (0.005)
MF-NSMF150 3.00 3.40 1.40 1.80 0.7 1.35 0.25 0.127
(0.118) (0.134) (0.055) (0.071) (0.028) (0.053) (0.010) (0.005)
MM
(INCHES)
UNIT =
Terminal material:
Electroless Ni under immersion Au
Termination pad solderability:
Standard Au finish:
Meets ANSI/J-STD-002 Category 2.
Optional Sn finish:
Meets ANSI/J-STD-002 Category 3.
Recommended Storage:
40 °C max./70 % RH max.
A
B
C
Top and Bottom View Side View
D E
Recommended Pad Layout
1.6 ± 0.1
(.063 ± .004)
2.0 ± 0.1
(.079 ± .004)
1.0 ± 0.05
(.039 ± .002)
1.0 ± 0.05
(.039 ± .002)
Additional Features
■Patents pending
Additional Applications
■Automotive electronic control modules
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
How to Order
MF - NSMF 075 T - 2
Multifuse®Product
Designator
Series
NSMF = 1206 Surface Mount
Component
Hold Current, Ihold
012-150 (0.12 Amps - 1.50 Amps)
Optional Terminal Finish
__ = Standard Au Finish
T = Optional Sn Finish
Packaging
Packaged per EIA 481-1
-2 = Tape and Reel
Typical Time to Trip at 23 ˚C
MF-NSMF Series - PTC Resettable Fuses
Typical Part Marking
Represents total content. Layout may vary.
PART IDENTIFICATION:
MF-NSMF012 = 0
MF-NSMF050 = 4
MF-NSMF075 = 5
MF-NSMF110 = 6
MF-NSMF150 = 8
BIWEEKLY DATE CODE:
WEEK 1 AND 2 = A
WEEK 51 AND 52 = Z
0H
0.01
0.001
0.1 1 10 100
0.1
1
Fault Current (Amps)
Time to Trip (Seconds)
MF-NSMF012
MF-NSMF110
MF-NSMF150
MF-NSMF050
MF-NSMF075
160–220
300
250
200
150
100
50
0
10–20
Temperature (°C)
120
Preheating Soldering Cooling
Time (seconds)
Solder Reflow Recommendations
Notes:
•MF-NSMF models cannot be wave soldered.
•If reflow temperatures exceed the recommended profile,
devices may not meet the performance requirements.
• Compatible with Pb and Pb-free solder reflow profiles.
The Time to Trip curves represent typical performance of a device in a simulated application
environment. Actual performance in specific customer applications may differ from these values due
to the influence of other variables.
MF-NSMF SERIES, REV. A, 01/04
Circuit Protection Division
Asia-Pacific:
Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555 • Fax: +41-41 768 5510
North America:
Tel: +1-909 781-5500 • Fax: +1-909 781-5700
www.bourns.com
MF-NSMF Series MF-SMDF Series
Tape Dimensions per EIA 481-1 per EIA 481-2
W
P0
P1
P2
A0
B0
B1max.
D0
F
E1
E2min.
T max.
T1max.
K0
Leader min.
Trailer min.
Reel Dimensions
A max.
N min.
W1
W2 max.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MF-NSMF & MF-SMDF Series Tape and Reel Specifications
B1
N(HUB DIA.)
(MEASURED
AT HUB)
A
T
COVER
TAPE
K0
T1A0
W2
(MEASURED
AT HUB)
W
1
P1
B0
F
D0P2
P
0
E2
E1
W
UNIT = MM
(INCHES)
8.0 ± 0.30
(0.315 ± 0.012)
4.0 ± 0.10
(0.157 ± 0.004)
4.0 ± 0.10
(0.157 ± 0.004)
2.0 ± 0.05
(0.079 ± 0.002)
1.85 ± 0.10
(0.073 ± 0.004)
1.75 ± 0.10
(0.069 ± 0.004)
1.50 + 0.1/-0.0
(0.059 + 0.004/-0)
8.4 + 1.5/-0.0
(0.331 + 0.059/-0.0)
4.35
(0.171)
6.25
(0.246)
0.6
(0.024)
0.1
(0.004)
390
(15.35)
160
(6.30)
185
(7.28)
50
(1.97)
14.4
(0.567)
16.0 ± 0.3
(0.630 ± 0.012)
4.0 ± 0.1
(0.157 ± 0.004)
8.0 ± 0.1
(0.315 ± 0.004)
2.0 ± 0.1
(0.079 ± 0.004)
5.1 ± 0.15
(0.201 ± 0.006)
5.6 ± 0.23
(0.220 ± 0.009)
7.5 ± 0.10
(0.295 ± 0.004)
1.75 ± 0.10
(0.069 ± 0.004)
1.0 ± 0.15
(0.039 ± 0.015)
1.5 + 0.1/-0.0
(0.059 + 0.004/-0)
16.4 + 2.0/ -0.0
(0.646 + 0.079/-0.0)
12.1
(0.476)
14.25
(0.561)
0.6
(0.024)
0.1
(0.004)
390
(15.35)
160
(6.30)
331
(13.03)
50
(1.97)
22.4
(0.882)
3.45 ± 0.10
(0.136 ± 0.004)
0.74 ± 0.10
(0.029 ± 0.004)
