MF-SMDF050 Datasheet, PDF (1/4 Pages) Bourns Electronic Solutions – MF-SMDF Series - PTC Resettable Fuses

*RoHS ^COMPLIANT
Features
■ Very low profile
■ Very fast tripping time
■ High voltage
■ RoHS compliant*
■ Symmetrical
■ 2018 footprint
■ Agency recognition:
T V Rheinland
Applications
■ Power Over Ethernet (IEEE 802.3 af) port
protection
■ Automotive electronic control module
protection
■ Telecom equipment low voltage
protection
MF-SMDF Series - PTC Resettable Fuses
Electrical Characteristics
Model
MF-SMDF050
MF-SMDF100*
MF-SMDF150*
MF-SMDF200
V max.
Volts
60
15
15
10
I max.
Amps
10
40
40
40
Ihold
Itrip
Amperes
at 23 °C
Hold
Trip
0.55
1.20
1.1
2.20
1.5
3.00
2.0
4.00
Resistance
Ohms
at 23 °C
RMin. R1Max.
0.200
1.0
0.06
0.36
0.05
0.17
0.03
0.100
Max. Time
To Trip
Amperes Seconds
at 23 °C at 23 °C
2.5
3.0
8.0
0.4
8.0
0.8
8.0
2.40
Tripped
Power
Dissipation
Watts
at 23 °C
Typ.
0.9
1.0
1.1
1.1
*Agency approval pending.
Environmental Characteristics
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
Test Procedures And Requirements For Model MF-SMDF 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
CSA File Number ..............................CA110338
http://directories.csa-international.org/ Under “Certification Record” and “File Number” enter 110338-0-000
TÜV Certificate Number ....................R 02057213
http://www.tuvdotcom.com/ Follow link to “other certificates”, enter File No. 2057213
Thermal Derating Chart - Ihold / Itrip (Amps)
Model
MF-SMDF050
MF-SMDF100
MF-SMDF150
MF-SMDF200
-40 °C
0.87 / 1.90
1.71 / 3.42
2.38 / 4.76
2.95 / 5.90
-20 °C
0.77 / 1.68
1.52 / 3.04
2.10 / 4.20
2.65 / 5.30
0 °C
0.67 / 1.46
1.32 / 2.64
1.82 / 3.64
2.35 / 4.70
Ambient Operating Temperature
23 °C
40 °C
50 °C
0.55 / 1.20 0.46 / 1.00 0.41 / 0.89
1.10 / 2.20 0.94 / 1.88 0.84 / 1.68
1.50 / 3.00 1.27 / 2.54 1.13 / 2.26
2.00 / 4.00 1.74 / 3.48 1.59 / 3.18
60 °C
70 °C
85 °C
0.36 / 0.79 0.31 / 0.68 0.23 / 0.50
0.74 / 1.48 0.64 / 1.28 0.50 / 1.00
0.99 / 1.98 0.85 / 1.70 0.64 / 1.28
1.44 / 2.88 1.29 / 2.58 1.06 / 2.12
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.