Features
■ Axial leaded
Applications
■ Any application that requires protection
at low resistances
■ Fully compatible with current
industry standards
■ Rechargeable battery packs; designed for
NiMH and Li-Ion chemical characteristics
VS240
2018S
■ Weldable nickel terminals
■ Very low internal resistance
■ Low switching temperature
■ 100% lead-free
■ Cellular phones
■ Laptop computers
MF-VS Series - PTC Resettable Fuses
Electrical Characteristics
1 Hour (R )
1
Post-Trip
Resistance
Tripped
Power
Dissipation
I
I
hold
trip
Initial
Resistance
Ohms
Max. Time
To Trip
Model
V max.
Volts
I max.
Amps
Amperes
At 23°C
Hold
Ohms
At 23°C
Max.
0.105
0.060
0.052
Amperes Seconds
Watts
At 23°C
Max.
0.052
0.030
0.026
At 23°C
At 23°C
At 23°C
Trip
3.4
4.7
5.9
Min.
Typ.
MF-VS170
MF-VS210
MF-VS240
16
16
16
100
100
100
1.7
2.1
2.4
0.030
0.018
0.014
0.040
0.022
0.020
8.5
10.0
12.0
3.0
5.0
6.0
1.4
1.5
1.9
NEW!
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 ≤ Rmax
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
UL File Number ..................................................E 174545S
CSA File Number ................................................CA 110338
TÜV File Number ................................................R2057213
Thermal Derating Chart - I
(Amps)
hold
Ambient Operating Temperature
Model
-40˚C
-20˚C
2.7
3.5
0˚C
2.2
2.9
3.0
23˚C
1.7
40˚C
1.3
50˚C
1.1
60˚C
0.8
70˚C
0.6
85˚C
0.1
MF-VS170
MF-VS210
MF-VS240
3.2
4.1
4.2
2.1
1.6
1.3
1.0
0.7
0.1
3.6
2.4
1.9
1.5
1.2
0.8
0.1
NEW!
*I
trip
is approximately two times I
hold.
Specifications are subject to change without notice.
Specifications are subject to change without notice.