T
PL
IA
N
Features
Applications
n Surface mount devices
Used as a secondary overcurrent protection
device in:
n Customer Premise Equipment (CPE)
n Central Office (CO)
n Subscriber Line Interface Cards (SLIC)
*R
oH
S
C
OM
n High voltage surge capabilities
n Binned and sorted resistance ranges
n Assists in meeting ITU K.20/K.21
specifications
n RoHS compliant*
LE
AD
F
RE
E
n Agency recognition:
MF-SM/250 - Telecom PTC Resettable Fuses
Electrical Characteristics
Max. Interrupt
Ratings
Ro VE LEA
HS RS D
C ION FRE
OM S E
PL AR
IA E
NT
*
Model
Max.
Operating
Voltage
Volts
(V)
MF-SM008/250F-2
MF-SM013/250-2
MF-SM013/250-A-2
MF-SM013/250-B-2
MF-SM013/250-C-2
80
60
60
60
60
Volts
(V)
Max.
250
250
250
250
250
Amps
(A)
Max.
3.0
3.0
3.0
3.0
3.0
Hold
Current
Amps
at 23 °C
IH
0.08
0.13
0.13
0.13
0.13
Initial
Resistance
Ohms
at 23 °C
Min.
5.0
6.5
6.5
9.0
7.0
Ohms
at 23 °C
Max.
11.0
12.0
9.0
12.0
10.0
One Hour
Post-Trip
Resistance
Ohms
at 23 °C
Max.
20.0
20.0
20.0
20.0
20.0
Tripped
Power
Dissipation
Watts
at 23 °C
Typ.
1.5
3.3
3.3
3.3
3.3
Environmental Characteristics
Operating Temperature.......................................... -40 °C to +85 °C
Maximum Device Surface Temperature
in Tripped State................................................. 125 °C
Passive Aging........................................................ +85 °C, 1000 hours................................................ ±15 % typical resistance change
Humidity Aging...................................................... +85 °C, 85 % R.H. 1000 hours.............................. ±15 % typical resistance change
Thermal Shock...................................................... MIL-STD-202F, Method 107G,............................... ±15 % typical resistance change
........................................................................... +125 °C to -55 °C,10 times.................................... ±15 % typical resistance change
Solvent Resistance................................................ MIL-STD-202, Method 215B.................................. No change
Lead Solerability.................................................... ANSI/J-STD-002
Vibration................................................................ MIL-STD-883C, Method 2007.1, Condition A........ No change
Moisture Sensitivity Level (MSL)............................Level 1
ESD Classification - HBM.......................................Class 6
Test Procedures And Requirements For Model MF-SM/250 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-202F, Method 208F............................95 % min. coverage
UL File Number................................................ E174545
TÜV File Number
MF-SM008/250-2.......................................... R50118917
MF-SM013/250-2.......................................... R2057213
Thermal Derating Chart - Ihold/ Itrip (Amps)
Model
MF-SM008/250-2
MF-SM013/250-2
MF-SM013/250-A-2
MF-SM013/250-B-2
MF-SM013/250-C-2
-40 ºC
0.124 / 0.34
0.21 / 0.42
0.21 / 0.42
0.21 / 0.42
0.21 / 0.42
-20 ºC
0.110 / 0.30
0.18 / 0.37
0.18 / 0.37
0.18 / 0.37
0.18 / 0.37
0 ºC
0.095 / 0.26
0.16 / 0.31
0.16 / 0.31
0.16 / 0.31
0.16 / 0.31
Ambient Operating Temperature
23 ºC
40 ºC
50 ºC
0.080 / 0.22 0.066 / 0.18 0.059 / 0.16
0.13 / 0.26
0.10 / 0.23
0.09 / 0.18
0.13 / 0.26
0.10 / 0.23
0.09 / 0.18
0.13 / 0.26
0.10 / 0.23
0.09 / 0.18
0.13 / 0.26
0.10 / 0.23
0.09 / 0.18
60 ºC
0.051 / 0.14
0.08 / 0.15
0.08 / 0.15
0.08 / 0.15
0.08 / 0.15
70 ºC
0.044 / 0.12
0.07 / 0.12
0.07 / 0.12
0.07 / 0.12
0.07 / 0.12
85 ºC
0.033 / 0.09
0.05 / 0.10
0.05 / 0.10
0.05 / 0.10
0.05 / 0.10
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Additional Features
n Withstands lightning power induction
MF-SM/250 - Telecom PTC Resettable Fuses
Product Dimensions
Model
MF-SM008/250-2
C
Max.
D
Nom.
E
Nom.
G
Nom.
H
Nom.
I
Nom.
7.9
(0.311)
3.7
(0.146)
5.3
(0.209)
0.3
(0.012)
3.8
(0.149)
9.7
(0.383)
3.1
(0.122)
2.3
(0.091)
7.4
(0.291)
0.3
(0.012)
3.8
(0.149)
9.7
(0.383)
4.6
(0.18)
1.8
(0.071)
7.4
(0.291)
0.3
(0.012)
3.8
(0.149)
9.7
(0.383)
4.6
(0.18)
1.8
(0.071)
7.4
(0.291)
0.3
(0.012)
3.8
(0.149)
9.7
(0.383)
4.6
(0.18)
1.8
(0.071)
7.4
(0.291)
0.3
(0.012)
3.8
(0.149)
9.7
(0.383)
4.6
(0.18)
1.8
(0.071)
9.4
(0.370)
I
I
MF-SM013/250-A-2
9.4
(0.370)
MF-SM013/250-B-2
9.4
(0.370)
H
H
MF-SM013/250-C-2
I
B
Max.
Recommended
Pad Layout
Recommended
Pad Layout
MF-SM013/250-2
d Pad Layout
A
Max.
I
3.7
(0.146)
I
3.7
(0.146)
9.4
(0.370)
G
G
Packaging:
TAPE & REEL: 1500 pcs. per reel
3.7
(0.146)
3.7
H
(0.146)
H
DIMENSIONS:
C
C
A
A
MM
(INCHES)
Recommended Pad Layout
I
C
H
B
E
E
D
End View
End View
A
I
B
Terminal material:
Tin-plated brass
D
Side View
Side View
H
H
G
Solder Reflow Recommendations
B
Preheating
300
250
Temperature (°C)
ew
200
Soldering
Cooling
Solder reflow
• Recommended reflow methods: IR, vapor phase oven, hot air oven.
D
E
• Devices are not designed to be wave soldered to the bottom
side of the
board.
End View
• Gluing the devices is not recommended.
Side View
150
• Recommended maximum paste thickness is 0.25 mm (.010 inch).
• Devices can be cleaned using standard industry methods and solvents.
100
Note:
50
• If reflow temperatures exceed the recommended profile, devices may not
meet the performance requirements.
0
160–220
10–20
120
Rework
• A device should not be reworked.
Time (seconds)
Storage Recommendations
The recommended long term storage conditions for Multifuse® Polymer PTC devices are 40 °C maximum and 70 % RH maximum. All devices
should remain in the original sealed packaging prior to use. Devices may not conform with data sheet specifications if these storage
recommendations are exceeded. Devices stored in this manner have an indefinite shelf life.
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
D
S
MF-SM/250 - Telecom PTC Resettable Fuses
Typical Part Marking
Typical Time to Trip at 23 °C
20
MF-SM013/250-C05-2
MF-SM013/250-2
10
Represents total content. Layout may vary.
MF-SM013/250-A-2
MANUFACTURER'S
TRADEMARK
PART IDENTIFICATION
013
0A
Time to trip (Seconds)
MF-SM013/250-B-2
DATE CODE WEEK 1 OF 2000 = 0A
(YEAR & WEEK)
WEEK 27 OF 2000 = A0
(WEEK & YEAR)
How to Order
1
MF - SM 013/250 - __ __ - 2
Multifuse
Product
Designator
®
Series
R = Radial Leaded
Component
SM = Surface Mount
Component
0.1
Hold Current, Ihold
008 (0.08 Amps)
013 (0.13 Amps)
Max. Interrupt Voltage, V
0.01
0.1
1
Fault Current (Amps)
5
Resistance Range
A = 6.5-9 ohms
B = 9-12 ohms
C = 7-10 ohms
F = 5-11 ohms
Resistance Sorted in Bins
05 = 0.5 ohms
Packaging
- 2 = Tape and Reel*
*Packaged per EIA486-B
NOTE: All parts are also available “binned”.
All parts within a package will be
within 0.5 ohms of each other
within the initial resistance range.
MF-SM/250, REV. U, 07/17
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
MF-SM, MF-SM/33, MF-SM/60 & MF-SM/250 Series Tape and Reel Specifications
NOTE: Effective December 1, 2010 (product date code V0), the cover tape was changed to the new 3M™ Universal Cover Tape (UCT).
Tape Dimensions
W max.
P0
P1
P2
A0
B0
B1 max.
D0
F
E1
E2 min.
T max.
T1 max.
K0
Leader min.
Trailer min.
MF-SM030, 050, 075, 100, 125, 260, 300;
MF-SM075/60; MF-SM-100/33; MF-SM008/250
per EIA-481-2
16.3
(0.642)
4.0 ± 0.1
(0.157 ± 0.004)
8.0 ± 0.1
(0.315 ± 0.004)
2.0 ± 0.1
(0.079 ± 0.004)
5.7 ± 0.1
(0.224 ± 0.004)
8.1 ± 0.1
(0.319 ± 0.004)
12.1
(0.476)
1.5 + 0.1/-0.0
(0.059 + 0.004/-0)
7.5 ± 0.1
(0.295 + 0.004)
1.75 ± 0.1
(0.069 ± 0.004)
14.25
(0.561)
0.6
(0.024)
0.1
(0.004)
3.4 ± 0.1
(0.134 ± 0.004)
390
(15.35)
160
(6.30)
MF-SM150, 200, 250;
MF-SM-150/33, MF-SM-185/33;
MF-SM013/250 per EIA 481-2
16.3
(0.642)
4.0 ± 0.1
(0.157 ± 0.004)
12.0 ± 0.1
(0.472 ± 0.004)
2.0 ± 0.1
(0.079 ± 0.004)
6.9 ± 0.1
(0.272 ± 0.004)
9.6 ± 0.1
(0.378 ± 0.004)
12.1
(0.476)
1.5 + 0.1/-0.0
(0.059 + 0.004/-0)
7.5 ± 0.1
(0.295 + 0.004)
1.75 ± 0.1
(0.069 ± 0.004)
14.25
(0.561)
0.6
(0.024)
0.1
(0.004)
3.4 ± 0.1*
(0.134 ± 0.004)*
390
(15.35)
160
(6.30)
360
(14.17)
50
(1.97)
16.4 + 2.0/ -0.0
(0.646 + 0.079/-0)
22.4
(0.882)
360
(14.17)
50
(1.97)
16.4 + 2.0/ -0.0
(0.646 + 0.079/-0)
22.4
(0.882)
Reel Dimensions
A max.
N min.
W1
W2 max.
* Model MF-SM013/250 =
T
3.8 ± 0.1
(0.150 ± 0.004)
DIMENSIONS:
D0
P2
P0
E1
MM
(INCHES)
W2(MEASURED
AT HUB)
COVER
TAPE
F
E2 W
B1
A
N(HUB DIA.)
B0
K0
T1
A0
P1
W1(MEASURED
AT HUB)
Specifications are subject to change without notice.
Users should verify actual device performance in their specific applications.
The products described herein and this document are subject to specific legal disclaimers as set forth on the last page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.
Legal Disclaimer Notice
This legal disclaimer applies to purchasers and users of Bourns® products manufactured by or on behalf of Bourns, Inc. and
its affiliates (collectively, “Bourns”).
Unless otherwise expressly indicated in writing, Bourns® products and data sheets relating thereto are subject to change
without notice. Users should check for and obtain the latest relevant information and verify that such information is current
and complete before placing orders for Bourns® products.
The characteristics and parameters of a Bourns® product set forth in its data sheet are based on laboratory conditions, and
statements regarding the suitability of products for certain types of applications are based on Bourns’ knowledge of typical
requirements in generic applications. The characteristics and parameters of a Bourns® product in a user application may vary
from the data sheet characteristics and parameters due to (i) the combination of the Bourns® product with other components
in the user’s application, or (ii) the environment of the user application itself. The characteristics and parameters of a Bourns®
product also can and do vary in different applications and actual performance may vary over time. Users should always verify
the actual performance of the Bourns® product in their specific devices and applications, and make their own independent
judgments regarding the amount of additional test margin to design into their device or application to compensate for
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Unless Bourns has explicitly designated an individual Bourns® product as meeting the requirements of a particular industry
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Bourns® products are not recommended, authorized or intended for use in nuclear, lifesaving, life-critical or life-sustaining
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C1753 05/17/18R
