mfsmht

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Features
■ Compliant with AEC-Q200 Rev-C Stress
■
136
4A
■
■
■
■ RoHS compliant*
Test Qualification for Passive Components
in Automotive Applications
Operating temperature range up to 125 °C
Low thermal derating factor
Higher hold currents at elevated
temperature
Choice of operating currents
MF-SMHT Series - PTC Resettable Fuses
Electrical Characteristics
Ihold
Model
MF-SMHT136
MF-SMHT160
V max.
Volts
I max.
Amps
16
16
100
100
Itrip
Amperes
at 23 °C
Hold
Trip
1.36
2.72
1.60
3.20
Max. Time
To Trip
Resistance
Ohms
at 23 °C
RMin.
R1Max.
0.085
0.33
0.050
0.15
Amperes
at 23 °C
Seconds
at 23 °C
8.0
8.0
10.0
10.0
Tripped
Power
Dissipation
Watts
at 23 °C
Typ.
2.1
2.1
Environmental Characteristics
Operating Temperature......................................... -40 °C to +125 °C
Storage Temperature ............................................ -40 °C to +85 °C
Passive Aging ....................................................... +125 °C, 1000 hours ............................................. ±15 % typical resistance change
Humidity Aging...................................................... +85 °C, 85 % R.H. 7 days ..................................... ±15 % typical resistance change
Thermal Shock ..................................................... MIL-STD-202F, Method 107G,.............................. ±15 % typical resistance change
+125 °C to -55 °C,10 cycles
Vibration ............................................................... MIL-STD-883C, Method 2007.1, Condition A ....... No change
Test Procedures And Requirements For Model MF-SMHT 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 .......................................................... MIL-STD-202F, Method 208F ............................... 95 % min. coverage
Thermal Derating Chart - Ihold/Itrip (Amps)
Model
MF-SMHT136
MF-SMHT160
Ambient Operating Temperature
-40 °C
-20 °C
0 °C
23 °C
40 °C
50 °C
60 °C
70 °C
85 °C
125 °C
1.91 / 3.82 1.72 / 3.44 1.54 / 3.08 1.36 / 2.72 1.18 / 2.36 1.09 / 2.18 1.00 / 2.00 0.91 / 1.82 0.77 / 1.54 0.40 / 0.80
2.15 / 4.30 1.96 / 3.92 1.78 / 3.56 1.60 / 3.20 1.42 / 2.48 1.33 / 2.66 1.24 / 2.48 1.15 / 3.30 1.02 / 2.04 0.64 / 1.28
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
*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.
Customers should verify actual device performance in their specific applications.
Applications
■ Protection of automotive circuitry including engine control modules
■ Overcurrent surge protection of electronic equipment required to operate at high
operating temperature ranges
■ Resettable fault protection of general electronic equipment
MF-SMHT Series - PTC Resettable Fuses
Product Dimensions
A
Model
Min.
6.73
(0.265)
8.00
(0.315)
MF-SMHT136
MF-SMHT160
Max.
7.98
(0.314)
9.50
(0.374)
B
Max.
3.00
(0.118)
3.00
(0.118)
C
Max.
5.44
(0.214)
6.71
(0.264)
D
Min.
0.56
(0.022)
0.56
(0.022)
E
Max.
0.71
(0.028)
0.71
(0.028)
Min.
0.56
(0.022)
0.56
(0.022)
F
Max
0.71
(0.028)
0.71
(0.028)
Min.
2.16
(0.085)
3.68
(0.145)
G
Max.
2.41
(0.095)
3.94
(0.155)
Min.
0.66
(0.026)
0.66
(0.026)
Packaging:
TAPE & REEL: MF-SMHT136 = 2000 pcs. per reel; MF-SMHT160 = 1500 pcs. per reel.
C
Max.
1.37
(0.054)
1.37
(0.054)
H
Min.
0.43
(0.017)
0.43
(0.017)
DIMENSIONS:
MM
(INCHES)
Typical Part Marking
G
Represents total content. Layout may vary.
B
Terminal material:
Tin-plated brass
MANUFACTURER'S
TRADEMARK
F
H
D
E
PART
IDENTIFICATION
136
4A
DATE CODE WEEK 1 OF 2004 = 4A
(YEAR & WEEK)
WEEK 27 OF 2004 = A4
(WEEK & YEAR)
End View
A
Side View
How to Order
Recommended Pad Layout
MF-SMHT160
Recommended Pad Layout
MF-SMHT136
2.3 ± 0.1
(0.09 ± 0.004)
MF - SMHT 136 - 2
2.3 ± 0.1
(0.09 ± 0.004)
Multifuse® Product
Designator
Series
SMHT = Surface Mount Component
Hold Current, Ihold
136 - 160 (1.36 - 1.60 Amps)
Packaging Options
- 2 = Tape and Reel*
9.7 ± 0.1
(0.38 ± 0.004)
3.1 ± 0.1
(0.12 ± 0.004)
10.7 ± 0.1
(0.42 ± 0.004)
3.1 ± 0.1
(0.12 ± 0.004)
4.6 ± 0.1
(0.18 ± 0.004)
*Packaged per EIA-481-2
4.6 ± 0.1
(0.18 ± 0.004)
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
MF-SMHT Series - PTC Resettable Fuses
Typical Time to Trip at 23 ˚C
10
MF-SMHT160
MF-SMHT136
Time to Trip (Seconds)
1
0.1
0.01
0.001
10
1
100
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.
Solder Reflow Recommendations
Temperature (°C)
300
Preheating
Soldering
Cooling
Solder reflow
•
Recommended reflow methods: IR, vapor phase oven, hot air oven.
250
•
Devices are not designed to be wave soldered to the bottom side of
the board.
200
•
Gluing the devices is not recommended.
150
•
Recommended maximum paste thickness is 0.25 mm (.010 inch).
•
Devices can be cleaned using standard industry methods and
solvents.
100
Note:
50
•
0
If reflow temperatures exceed the recommended profile, devices
may not meet the performance requirements.
Rework
160–220
10–20
120
Time (seconds)
MF-SMHT SERIES, REV. F, 02/12
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
•
A device should not be reworked.
MF-SMHT Series Tape and Reel Specifications
NOTE: Effective December 1, 2010 (product date code V0), the cover tape will be changed to the new 3M™ Universal Cover Tape (UCT).
Tape Dimensions
W
P0
P1
P2
A0
B0
B1 max.
D0
F
E1
E2 min.
T max.
T1 max.
K0
Leader min.
Trailer min.
MF-SMHT136
per EIA-481-2
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)
5.7 ± 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-SMHT160
per EIA 481-2
16.0 ± 0.3
(0.630 ± 0.012)
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.
DIMENSIONS:
MM
(INCHES)
P0
T
D0
P2
E1
W2(MEASURED
AT HUB)
COVER
TAPE
F
E2 W
B1
A
N(HUB DIA.)
B0
K0
T1
P1
A0
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
W1(MEASURED
AT HUB)