MF-ESMD Datasheet, PDF (1/3 Pages) Bourns Electronic Solutions – PTC Resettable Fuses

Features
■ Fast tripping resettable circuit protection
■ Surface mount packaging for automated
assembly
■ Very low internal resistance
■ Patents pending
■ 100 °C trip temperature
■ Agency recognition:
Applications
■ Battery cell protection
MF-ESMD Series - PTC Resettable Fuses
Electrical Characteristics
Model
V max.
Volts
I max.
Amps
MF-ESMD190
16
100
Ihold
Itrip
Amperes
at 23 °C
Hold
Trip
1.9
3.8
Resistance
Ohms
at 23 °C
Min.
R1 Max.
0.010
0.08
Max. Time
To Trip
Amperes
at 23 °C
Seconds
at 23 °C
10
2.0
Tripped
Power
Dissipation
Watts
at 23 °C
Typ.
1.5
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 ....................................................+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-ESMD 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
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 (Amps)
Model
MF-ESMD190
Ambient Operating Temperature
-40 ˚C
-20 ˚C
0 ˚C
3.04
2.7
2.2
23 ˚C
1.9
40 ˚C
1.44
50 ˚C
1.23
60 ˚C
1.00
70 ˚C
0.78
85 ˚C
0.49
Specifications are subject to change without notice.