mfsm-bourns.pdf

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Features
s
s
s
s
s
Applications
Almost anywhere there is a low voltage
power supply and a load to be protected,
including:
s
Computers & peripherals
s
General electronics
s
Automotive applications
Surface Mount Devices
Fully compatible with current
industry standards
Packaged per EIA 481-2 standard
Agency recognition:
Patents pending
MF-SM Series -
PTC Resettable Fuses
Electrical Characteristics
Max. Time
To Trip
Amperes
at 23°C
Seconds
at 23°C
Max.
Tripped
Power
Dissipation
Ihold
Model
V max.
Volts
I max.
Amps
Itrip
Resistance
Ohms
at 23°C
RMin.
R1Max.
Amperes
at 23°C
Hold
Trip
Watts
at 23°C
Nom.
MF-SM030
MF-SM050
MF-SM075
MF-SM100
MF-SM125
MF-SM150
MF-SM200
MF-SM250
MF-SM260
60
30
30
15
15
15
15
15
6
10
10
40
40
40
40
40
40
40
0.30
0.50
0.75
1.10
1.25
1.50
2.00
2.50
2.60
0.60
1.00
1.50
2.20
2.50
3.00
4.00
5.00
5.20
0.90
0.35
0.26
0.12
0.07
0.06
0.05
0.024
0.025
4.80
1.40
1.00
0.48
0.25
0.25
0.125
0.085
0.075
1.5
2.5
8.0
8.0
8.0
8.0
8.0
8.0
8.0
3.0
4.0
0.30
0.50
2.0
5.0
12.0
25.0
20.0
1.7
1.7
1.7
1.7
1.7
1.9
1.9
1.9
1.7
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 ........................................................MIL-STD-202F, Method 107G, ........................±10% typical resistance change
+125°C to -40°C,10 times
Mechanical Shock....................................................MIL-STD-202, Method 213, ............................No resistance change
Condition 1 (100g, 6 seconds)
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-SM 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 ..............................................................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 ............................................................MIL-STD-202, Method 208 ..............................95% min. coverage
UL File Number ........................................................E 174545S
CSA File Number ....................................................CA 110338
TÜV File Number......................................................E9772255.01
NOTE: Model MF-SM260 CSA and TÜV approvals are pending.
Thermal Derating Chart - Ihold / Itrip (Amps)
Ambient Operating Temperature
Model
MF-SM030
MF-SM050
MF-SM075
MF-SM100
MF-SM125
MF-SM150
MF-SM200
MF-SM250
MF-SM260
-40˚C
0.45 / 0.90
0.76 / 1.52
1.13 / 2.26
1.66 / 3.32
1.89 / 3.78
2.27 / 4.54
3.02 / 6.04
3.78 / 7.56
3.64 / 7.28
-20˚C
0.40 / 0.80
0.67 / 1.34
1.01 / 2.02
1.47 / 2.94
1.68 / 3.36
2.01 / 4.02
2.68 / 5.36
3.35 / 6.70
3.25 / 6.50
0˚C
0.35 / 0.70
0.59 / 1.18
0.88 / 1.76
1.29 / 2.58
1.46 / 2.92
1.76 / 3.52
2.34 / 4.68
2.93 / 5.86
2.91 / 5.82
23˚C
0.30 / 0.60
0.50 / 1.00
0.75 / 1.50
1.10 / 2.20
1.25 / 2.50
1.50 / 3.00
2.00 / 4.00
2.50 / 5.00
2.60 / 5.20
40˚C
0.25 / 0.50
0.42 / 0.84
0.62 / 1.24
0.91 / 1.82
1.04 / 2.08
1.25 / 2.50
1.66 / 3.32
2.08 / 4.16
2.26 / 4.52
50˚C
0.23 / 0.46
0.38 / 0.76
0.56 / 1.12
0.83 / 1.66
0.94 / 1.88
1.13 / 2.26
1.50 / 3.00
1.88 / 3.76
2.08 / 4.16
60˚C
0.20 / 0.40
0.33 / 0.66
0.50 / 1.00
0.73 / 1.46
0.83 / 1.66
0.99 / 1.98
1.32 / 2.64
1.65 / 3.30
1.95 / 3.90
70˚C
0.17 / 0.34
0.29 / 0.58
0.44 / 0.88
0.64 / 1.28
0.73 / 1.46
0.87 / 1.74
1.16 / 2.32
1.45 / 2.90
1.74 / 3.48
85˚C
0.14 / 0.28
0.23 / 0.46
0.34 / 0.68
0.50 / 1.00
0.56 / 1.12
0.68 / 1.36
0.90 / 1.80
1.13 / 2.26
1.48 / 2.96
Specifications are subject to change without notice.
MF-SM Series -
PTC Resettable Fuses
Product Dimensions
A
Min.
6.73
6.73
6.73
6.73
6.73
8.00
8.00
8.00
6.73
Max.
7.98
7.98
7.98
7.98
7.98
9.50
9.50
9.50
7.98
B
Max.
3.18
3.18
3.18
3.00
3.00
3.00
3.00
3.00
3.00
C
Max.
5.44
5.44
5.44
5.44
5.44
6.71
6.71
6.71
5.44
D
Min.
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
Max.
0.71
0.71
0.71
0.71
0.71
0.71
0.71
0.71
0.71
Min.
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
0.56
E
Max.
0.71
0.71
0.71
0.71
0.71
0.71
0.71
0.71
0.71
Min.
2.16
2.16
2.16
2.16
2.16
3.68
3.68
3.68
2.16
F
Max.
2.41
2.41
2.41
2.41
2.41
3.94
3.94
3.94
2.41
Min.
0.66
0.66
0.66
0.66
0.66
0.66
0.66
0.66
0.66
G
Max.
1.37
1.37
1.37
1.37
1.37
1.37
1.37
1.37
1.37
H
Min.
0.43
0.43
0.43
0.43
0.43
0.43
0.43
0.43
0.43
Model
MF-SM030
MF-SM050
MF-SM075
MF-SM100
MF-SM125
MF-SM150
MF-SM200
MF-SM250
MF-SM260
Packaging:
TAPE & REEL: MF-SM030, 050, 075, 100, 125, 260 = 2000 pcs. per reel; MF-SM150, 200, 250 = 1500 pcs. per reel.
DIMENSIONS = MM
B
Solder Reflow Recommendations
H
D
A
E
Temperature (°C)
300
250
200
150
100
Preheating
Soldering
Cooling
Side View
C
G
Terminal material:
Tin-plated brass
F
50
End View
Recommended Pad Layout
2.3
(0.09)
2.3
(0.09)
0
30–90
sec
10–20
sec
120
sec
3.1
(0.12)
3.1
(0.12)
9.7
(0.38)
Solder reflow
•
Recommended reflow methods: IR, vapor phase oven, hot air oven.
•
Devices are not designed to be wave soldered to the bottom side of the board.
• Gluing the devices is not recommended.
• Recommended maximum paste thickness is 0.25 mm (.010 inch).
•
Devices can be cleaned using standard industry methods and solvents.
Note:
•
If reflow temperatures exceed the recommended profile, devices may not meet the performance
requirements.
Rework
•
A device should not be reworked.
MF-SM030, 050, 075, 100, 125, 260
Recommended Pad Layout
2.3
(0.09)
2.3
(0.09)
4.6
(0.18)
4.6
(0.18)
10.7
(0.42)
MF-SM150, 200, 250
DIMENSIONS:
MM
(INCHES)
Specifications are subject to change without notice.
MF-SM Series -
PTC Resettable Fuses
Typical Time to Trip at 23˚C
MF
-SM
030
MF
-SM
MF 050
-SM
MF 075
-SM
MF 100
-S
MF M125
-SM
MF 150
-SM
MF 200
-SM
MF 250
-SM
260
How To Order
MF - SM 030 - 2i
Multifuse
®
Product
Designator
Series
R=
RX =
SM =
MSMD =
MSME =
S=
LS =
LR =
AAA =
D=
Radial Leaded Component
Radial Leaded Component
Surface Mount Component
4.5mm Surface Mount Component
11.5mm Surface Mount Component
Axial Leaded “Strap” Component
Axial Leaded “Strap” Component
Axial Leaded “Strap” Component
Battery Cap Component
Uncoated, Unleaded “Disk”
Component
100
10
Time to Trip (Seconds)
1
0.1
Hold Current, Ihold
030-260 (0.30 Amps - 2.60 Amps)
Packaging
Packaged per EIA 481-2
- 2 = Tape and Reel
0.01
Typical Part Marking
0.001
0.1
1
10
100
Fault Current (Amps)
Represents total content. Layout may vary.
MANUFACTURER'S
TRADEMARK
PART
IDENTIFICATION
DATE CODE -
WEEK 1 OF 1999 = 9E
(YEAR & WEEK)
WEEK 27 OF 1999 = E9
(WEEK & YEAR)
030
8I
MF-SM SERIES, REV. G, 11/99
Specifications are subject to change without notice.
MF-SM Series Tape and Reel Specifications
Tape Dimension Identifiers
W
P0
P1
P2
A0
B0
B1 max.
D0
F
E1
E2 min.
T max.
T1 max.
K0
Leader min.
Trailer min.
Reel Dimension Identifiers
A max.
N min.
W1
W2 max.
360
50
16.4 + 2.0/ -0
22.4
360
50
16.4 + 2.0/ -0
22.4
DIMENSIONS: MM
MF-SM030, 050, 075, 100, 125
per EIA-481-2
16 ± 0.3
4.0 ± 0.10
8.0 ± 0.10
2.0 ± 0.10
5.7 ± 0.10
8.1 ± 0.15
9.1
1.5 + 0.1/ - 0
7.5 ± 0.10
1.75 ± 0.10
14.25
0.4
0.1
3.4 ± 0.15
390
160
MF-SM150, 200, 250, 260
per EIA 481-2
16 ± 0.3
4.0 ± 0.10
12.0 ± 0.10
2.0 ± 0.10
6.9 ± 0.10
9.6 ± 0.10
11.0
1.5 + 0.1/ -0
7.5 ± 0.10
1.75 ± 0.10
14.25
0.4
0.1
3.5 ± 0.10
390
160
P0
T
D0
P2
E1
W2(MEASURED
AT HUB)
COVER
TAPE
F
B1
B0
K0
T1
P1
A0
W1(MEASURED
AT HUB)
E2 W
A
N(HUB DIA.)
Specifications are subject to change without notice.

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