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

*RoHS ^COMPLIANT
014L4ST190
Features
■ Axial/radial leaded
■ Fully compatible with current
industry standards
■ Weldable nickel terminals
■ Very low internal resistance
■ RoHS compliant*, lead free
■ Agency recognition:
T V Rheinland
Applications
Any application that requires extra
protection at elevated ambient temperatures,
which the 100°C trip temperature provides.
■ Rechargeable battery pack protection
■ Cellular phones
■ Laptop computers
MF-LS Series - PTC Resettable Fuses
Electrical Characteristics
Model
V max.
Volts
I max.
Amps
MF-LS070
15
100
MF-LS070S
15
100
MF-LS100S
24
100
MF-LS180
24
100
MF-LS180L
24
100
MF-LS180S
24
100
MF-LS190
24
100
MF-LS190RU
15
100
MF-LS260
24
100
MF-LS300
24
100
MF-LS340
24
100
Note: Slotted option available on all models.
Ihold
Itrip
Amperes
at 23 °C
Hold
Trip
0.7
1.5
0.7
1.5
1.0
2.5
1.8
3.8
1.8
3.8
1.8
3.8
1.9
4.2
1.9
4.2
2.6
5.2
3.0
6.3
3.4
6.8
Initial
Resistance
Ohms
at 23 °C
Min.
Max.
0.100 0.200
0.100 0.200
0.070 0.130
0.040 0.068
0.040 0.068
0.040 0.068
0.030 0.057
0.030 0.057
0.025 0.042
0.015 0.031
0.016 0.027
1 Hour (R1)
Post-Trip
Resistance
Max. Time
To Trip
Tripped
Power
Dissipation
Ohms
at 23 °C
Max.
0.340
0.340
0.260
0.120
0.120
0.120
0.100
0.100
0.076
0.055
0.050
Amperes Seconds
at 23 °C at 23 °C
3.5
5.0
3.5
5.0
5
7.0
9
2.9
9
2.9
9
2.9
10
3.0
10
3.0
13
5.0
15
4.0
17
5.0
Watts
at 23 °C
Typ.
1.0
1.0
1.5
2.0
2.0
2.0
1.9
1.9
2.3
2.0
2.7
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 ....................................±10 % typical resistance change
Humidity Aging....................................................+85 °C, 85 % R.H. 7 days ..........................±5 % typical resistance change
Vibration ..............................................................MIL-STD-883C, ..........................................No change
Condition A
Test Procedures And Requirements For Model MF-LS 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
UL File Number ..................................................E 174545S
CSA File Number ................................................CA 110338
TÜV File Number ................................................R2057213
Thermal Derating Chart - Ihold / Itrip (Amps)
Model
MF-LS070
MF-LS070S
MF-LS100S
MF-LS180
MF-LS180L
MF-LS180S
MF-LS190
MF-LS190RU
MF-LS260
MF-LS300
MF-LS340
-40 °C
1.20 / 2.57
1.20 / 2.57
1.80 / 4.50
3.10 / 6.54
3.10 / 6.54
3.10 / 6.54
3.30 / 7.29
3.30 / 7.29
4.30 / 8.60
5.10 / 10.7
5.50 / 11.0
-20 °C
1.09 / 2.33
1.09 / 2.33
1.60 / 4.00
2.60 / 5.49
2.60 / 5.49
2.60 / 5.49
2.80 / 6.19
2.80 / 6.19
3.70 / 7.40
4.40 / 9.24
4.70 / 9.40
0 °C
0.85 / 1.82
0.85 / 1.82
1.40 / 3.50
2.20 / 4.64
2.20 / 4.64
2.20 / 4.64
2.40 / 5.31
2.40 / 5.31
3.10 / 6.20
3.70 / 7.77
4.00 / 8.00
Ambient Operating Temperature
23 °C
0.70 / 1.50
0.70 / 1.50
1.00 / 2.50
1.80 / 3.80
1.80 / 3.80
1.80 / 3.80
1.90 / 4.20
1.90 / 4.20
2.60 / 5.20
3.00 / 6.30
3.40 / 6.80
40 °C
0.50 / 1.07
0.50 / 1.07
0.80 / 2.00
1.30 / 2.74
1.30 / 2.74
1.30 / 2.74
1.40 / 3.09
1.40 / 3.09
1.90 / 3.80
2.30 / 4.83
2.60 / 5.20
50 °C
0.45 / 0.96
0.45 / 0.96
0.70 / 1.75
1.10 / 2.32
1.10 / 2.32
1.10 / 2.32
1.20 / 2.65
1.20 / 2.65
1.60 / 3.20
1.90 / 3.99
2.20 / 4.40
60 °C
0.35 / 0.75
0.35 / 0.75
0.60 / 1.50
0.90 / 1.90
0.90 / 1.90
0.90 / 1.90
1.10 / 2.43
1.10 / 2.43
1.40 / 2.80
1.60 / 3.36
1.90 / 3.80
70 °C
0.28 / 0.60
0.28 / 0.60
0.40 / 1.00
0.60 / 1.27
0.60 / 1.27
0.60 / 1.27
0.70 / 1.55
0.70 / 1.55
1.10 / 2.20
1.20 / 2.52
1.50 / 3.00
85 °C
0.16 / 0.34
0.16 / 0.34
0.20 / 0.50
0.20 / 0.42
0.20 / 0.42
0.20 / 0.42
0.40 / 0.88
0.40 / 0.88
0.60 / 1.20
0.60 / 1.26
0.80 / 1.60
*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.