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-FSMF 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
TÜV Certificate Number ....................................... R 50171531
http://www.tuvdotcom.com/ Follow link to “other certificates”, enter File No. 50171531
Thermal Derating Chart - Ihold (Amps)
Ambient Operating Temperature
Model
MF-FSMF010X
MF-FSMF020X
MF-FSMF035X
MF-FSMF050X
-40 °C
0.13
0.27
0.47
0.67
-20 °C
0.12
0.25
0.41
0.59
0 °C
0.11
0.23
0.38
0.54
23 °C
0.10
0.20
0.35
0.50
40 °C
0.08
0.17
0.29
0.41
50 °C
0.07
0.14
0.26
0.37
60 °C
0.06
0.12
0.24
0.34
70 °C
0.05
0.10
0.20
0.29
85 °C
0.03
0.07
0.14
0.20
* RoHS Directive 2002/95/EC Jan 27, 2003 including Annex.
**Bourns follows the prevailing definition of “halogen free” in the industry. Bourns considers a product to be “halogen free” if (a) the Bromine (Br ) content is 900 ppm or less;
(b) the Chlorine ( Cl ) content is 900 ppm or less; and (c) the total Bromine (Br) and Chlorine ( Cl ) content is 1500 ppm or less.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
Additional Applications
■
Automotive electronic control modules
■
Game console port protection
MF-FSMF Series - PTC Resettable Fuses
Product Dimensions
A
Min.
MF-FSMF010X
MF-FSMF020X
MF-FSMF035X
MF-FSMF050X
1.45
(0.057)
1.45
(0.057)
1.45
(0.057)
1.45
(0.057)
Max.
1.85
(0.073)
1.85
(0.073)
1.85
(0.073)
1.85
(0.073)
Min.
0.65
(0.026)
0.65
(0.026)
0.65
(0.026)
0.65
(0.026)
B
Max.
1.05
(0.041)
1.05
(0.041)
1.05
(0.041)
1.05
(0.041)
Min.
0.30
(0.012)
0.30
(0.012)
0.30
(0.012)
0.65
(0.026)
C
Max.
0.65
(0.026)
0.65
(0.026)
0.65
(0.026)
1.00
(0.039)
D
Min.
0.20
(0.008)
0.20
(0.008)
0.20
(0.008)
0.20
(0.008)
DIMENSIONS:
MM
(INCHES)
Model
Packaging: MF-FSMF010X = 5000 pcs. per reel;
MF-FSMF020X & MF-FSMF035X = 6000 pcs. per reel;
MF-FSMF050X = 4000 pcs. per reel
Top View
Bottom View
A
Side View
C
Recommended Pad Layout
Terminal material:
Nickel/gold plated.
Termination pad solderability:
Standard Au finish:
Meets ANSI/J-STD-002 Category 2.
Recommended Storage:
40 °C max./70 % RH max.
I
D
B
1.00 ± 0.05
(.039 ± .002)
0.70 ± 0.05
(.028 ± .002)
1.00 ± 0.05
(.039 ± .002)
Solder Reflow Recommendations
300
250
Temperature (°C)
200
150
100
50
0
How To Order
Soldering
Cooling
Preheating
MF - FSMF 020 X - 2
Multifuse
®
Product
Designator
Series
FSMF = 0603 Surface Mount
Component
Hold Current, Ihold
010-050 (0.10 - 0.50 Amps)
Multifuse
®
freeXpansion™ Design
Packaging
Packaged per EIA 481-1
-2 = Tape and Reel
Typical Part Marking
160–220
10–20
Time (seconds)
120
PART IDENTIFICATION:
MF-FSMF010X = II
MF-FSMF020X = I
MF-FSMF035X = •
MF-FSMF050X = —
I
Notes:
• MF-FSMF models cannot be wave soldered. Please contact Bourns for hand soldering
recommendations.
• If reflow temperatures exceed the recommended profile, devices may not meet the
performance requirements.
• Compatible with Pb and Pb-free solder reflow profiles.
• Excess solder may cause a short circuit, especially during hand soldering. Please refer to
the Multifuse
®
Polymer PTC Soldering Recommendation guidelines.
BIWEEKLY DATE CODE WILL APPEAR ON THE PACKAGING LABEL:
WEEK 1 AND 2 = A
WEEK 51 AND 52 = Z
“freeXpansion Design” is a trademark of Bourns, Inc.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MF-FSMF Series - PTC Resettable Fuses
Typical Time to Trip at 23 °C
MF
020
MF
X
-FS
MF
035
X
MF
-FS
MF
050
X
MF
010
X
100
10
Time to Trip (Seconds)
1
0.1
0.01
0.001
0.1
MF
-FS
MF
-FS
1
10
Fault Current (Amps)
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.
Asia-Pacific:
Tel: +886-2 2562-4117 • Fax: +886-2 2562-4116
Europe:
Tel: +41-41 768 5555 • Fax: +41-41 768 5510
The Americas:
Tel: +1-951 781-5500 • Fax: +1-951 781-5700
www.bourns.com
MF-FSMF SERIES, REV. G, 05/11
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MF-FSMF Series Tape and Reel Specifications
Product Dimensions
Tape Dimensions
W
P0
P1
P2
A0
B0
D0
F
E1
T
10 P0
Reel Dimensions
A max.
N min.
W1
W2 max.
185
(7.283)
50
(1.97)
8.4 + 1.5/ -0.0
(0.331 + 0.059/-0)
14.4
(0.567)
185
(7.283)
50
(1.97)
8.4 + 1.5/ -0.0
(0.331 + 0.059/-0)
14.4
(0.567)
185
(7.283)
50
(1.97)
8.4 + 1.5/ -0.0
(0.331 + 0.059/-0)
14.4
(0.567)
MF-FSMF010X
per EIA 481-1
8.0 ± 0.1
(0.315 ± 0.004)
4.0 ± 0.1
(0.157 ± 0.004)
4.0 ± 0.05
(0.157 ± 0.002)
2.0 ± 0.05
(0.079 ± 0.002)
1.17 ± 0.05
(0.046 ± 0.002)
2.02 ± 0.05
(0.079 ± 0.002)
1.55 ± 0.05
(0.061 ± 0.002)
3.5 ± 0.05
(0.138 + 0.002)
1.75 ± 0.1
(0.069 ± 0.004)
0.75 ± 0.05
(0.030 ± 0.002)
40.0 ± 0.1
(1.575 ± 0.004)
MF-FSMF020X, MF-FSMF035X
per EIA 481-1
8.0 ± 0.1
(0.315 ± 0.004)
4.0 ± 0.1
(0.157 ± 0.004)
4.0 ± 0.05
(0.157 ± 0.002)
2.0 ± 0.05
(0.079 ± 0.002)
1.17 ± 0.05
(0.046 ± 0.002)
2.02 ± 0.05
(0.079 ± 0.002)
1.55 ± 0.05
(0.061 ± 0.002)
3.5 ± 0.05
(0.138 + 0.002)
1.75 ± 0.1
(0.069 ± 0.004)
0.60 ± 0.05
(0.024 ± 0.002)
40.0 ± 0.1
(1.575 ± 0.004)
MF-FSMF050X
per EIA 481-1
8.0 ± 0.1
(0.315 ± 0.004)
4.0 ± 0.1
(0.157 ± 0.004)
4.0 ± 0.05
(0.157 ± 0.002)
2.0 ± 0.05
(0.079 ± 0.002)
1.17 ± 0.05
(0.046 ± 0.002)
2.02 ± 0.05
(0.079 ± 0.002)
1.55 ± 0.05
(0.061 ± 0.002)
3.5 ± 0.05
(0.138 + 0.002)
1.75 ± 0.1
(0.069 ± 0.004)
0.95 ± 0.05
(0.037 ± 0.002)
40.0 ± 0.1
(1.575 ± 0.004)
10 P0
T
P0
D0
E1
W2(MEASURED
AT HUB)
F W
A
N(HUB DIA.)
B0
P2
P1
A0
W1(MEASURED
AT HUB)
DIMENSIONS:
MM
(INCHES)
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
