Features
■ Industry’s lowest internal resistance
■ Switches at optimum temperature
■ Axial leaded, with fl exible design options
available
■ Fully compatible with current industry
standards
■ Weldable nickel terminals
■ Agency recognition:
■ RoHS compliant*
MF-SVS Series - PTC Resettable Fuses
Environmental Characteristics
Operating Temperature ......................................... -40 °C to +85 °C
Storage Conditions ............................................... +40 °C max. 70 % R.H. max.
Maximum Device Surface Temperature
in Tripped State ................................................ 125 °C
Passive Aging ....................................................... +60 °C, 1000 hours ............................................... ±10 % typical resistance change
Humidity Aging...................................................... +60 °C, 85 % R.H. 1000 hours ............................. ±10 % typical resistance change
Thermal Shock ..................................................... MIL-STD-202F, Method 107G, .............................. ±5 % typical resistance change
+85 °C to -40 °C, 10 times
Vibration ............................................................... MIL-STD-883C, ..................................................... No change
Condition A
Test Procedures And Requirements For Model MF-SVS 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 specifi ed 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
UL File Number ..................................................... E174545
http://www.ul.com/ Follow link to Certifi cations, then UL File No., enter E174545
TÜV Certifi cate Number ....................................... R 02057213
http://www.tuvdotcom.com/ Follow link to “other certifi cates”, enter File No. 2057213
Electrical Characteristics
Model
V max.
Volts
I max.
Amps
I
hold
I
trip
Initial
Resistance
1 Hour (R
1
)
Post-Trip
Resistance
Max. Time
to Trip
Tripped
Power
Dissipation
Amperes
at 23 °C
Ohms
at 23 °C
Ohms
at 23 °C
Amperes
at 23 °C
Seconds
at 23 °C
Watts
at 23 °C
Hold Trip Min. Max. Typ. Max. Typ.
MF-SVS170 10 100 1.7 4.1 0.018 0.032 0.023 0.064 8.5 5.0 2.1
MF-SVS175 10 100 1.75 4.2 0.017 0.031 0.022 0.063 8.5 5.0 2.1
MF-SVS210 10 100 2.1 5.0 0.010 0.020 0.016 0.040 10.5 5.0 2.4
MF-SVS230 10 100 2.3 5.2 0.010 0.018 0.014 0.036 12.5 5.0 2.6
*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.
Specifi cations are subject to change without notice.
The device characteristics and parameters in this data sheet can and do vary in different applications and actual device performance may vary over time.
Users should verify actual device performance in their specifi c applications.
Thermal Derating Chart - I
hold
(Amps)
Model
Ambient Operating Temperature
-40 ºC -20 ºC 0 ºC 23 ºC 40 ºC 50 ºC 60 ºC 70 ºC 85 ºC
MF-SVS170 3.3 2.8 2.3 1.7 1.3 1.0 0.8 0.5 0.1
MF-SVS175 3.4 2.9 2.3 1.75 1.3 1.1 0.8 0.5 0.1
MF-SVS210 3.8 3.3 2.7 2.1 1.6 1.3 1.1 0.8 0.4
MF-SVS230 4.2 3.6 3.0 2.3 1.8 1.4 1.1 0.8 0.4
*I
trip
is approximately two times I
hold
.
