MF-VS Series - PTC Resettable Fuses
Environmental Characteristics
Operating/Storage Temperature ........................... -40 °C to +85 °C
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-VS 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
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-VS170 3.2 2.7 2.2 1.7 1.3 1.1 0.8 0.6 0.1
MF-VS210 4.1 3.5 2.9 2.1 1.6 1.3 1.0 0.7 0.1
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-VS170 16 100 1.7 3.4 0.030 0.052 0.040 0.105 8.5 3.0 1.4
MF-VS210 16 100 2.1 4.7 0.018 0.030 0.022 0.060 10.0 5.0 1.5
*I
trip
is approximately two times I
hold
.
Features
■ Axial leaded
■ Fully compatible with current
industry standards
■ Weldable nickel terminals
■ Very low internal resistance
■ Low switching temperature
■ Agency recognition:
■ RoHS compliant*
*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.
