15LT070 Datasheet, PDF (1/4 Pages) Littelfuse – POLYFUSE® Resettable PTCs

POLYFUSE^® Resettable PTCs
Axial Leaded Strap
LT Series
Agency Approvals
AGENCY AGENCY FILE NUMBER
E183209
R50082521
Description
The new LT series device provides reliable, noncycling
protection against overcharging and short circuits events
for rechargeable battery cells where resettable protection
is desired.
Features
• RoHS compliant and
lead-free
• Weldable nickel terminals
• Compact design saves
board space
• Low resistance
• Provides overcurrent
protection at 100°C
trip temperature
Applications
• Rechargeable battery cell
protection
- Mobile phones
- Laptop computers
Electrical Characteristics
Part Number
I _hold
(A)
Maximum Time
I _trip
V _max
I _max
P_d
max.
To Trip
(A) (Vdc) (A)
(W) ^{Current Time}
Resistance
R _min
R _typ
R _1max
(A)
(Sec.)
(Ω)
(Ω)
(Ω)
15LT070
0.7
1.5
15
100
1.0
3.50
5.00
0.100 0.200 0.340
15LT070S
0.7
1.5
15
100
1.0
3.50
5.00
0.100 0.200 0.340
24LT100
1.0
2.5
24
100
1.5
5.00
7.00
0.070 0.130 0.260
24LT100S
1.0
2.5
24
100
1.5
5.00
7.00
0.070 0.130 0.260
24LT100SS
1.0
2.5
24
100
1.5
5.00
7.00
0.070 0.130 0.260
24LT180
1.8
3.8
24
100
2.0
9.00
2.90
0.040 0.068 0.120
24LT180S
1.8
3.8
24
100
2.0
9.00
2.90
0.040 0.068 0.120
24LT180SS
1.8
3.8
24
100
2.0
9.00
2.90
0.040 0.068 0.120
24LT190
1.9
4.2
24
100
1.9
10.00
3.00
0.030 0.057 0.100
24LT190S
1.9
4.2
24
100
1.9
10.00
3.00
0.030 0.057 0.100
24LT260
2.6
5.2
24
100
2.3
13.0
5.0
0.025 0.042 0.076
24LT300
3.0
6.3
24
100
2.0
15.0
4.0
0.015 0.031 0.055
24LT310
3.1
6.0
24
100
2.5
16.0
5.0
0.018 0.030 0.055
24LT340
3.4
6.8
24
100
2.7
17.0
5.0
0.016 0.027 0.050
Agency
Approvals
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
I _hold = Hold current: maximum current device will pass without tripping in 20°C still air.
I = Trip current: minimum current at which the device will trip in 20°C still air.
trip
V = Maximum voltage device can withstand without damage at rated current (I max)
max
I _max = Maximum fault current device can withstand without damage at rated voltage (V_max)
P _d = Power dissipated from device when in the tripped state at 20°C still air.
R _min = Minimum resistance of device in initial (un-soldered) state.
R _typ = Typical resistance of device in initial (un-soldered) state.
R = Maximum resistance of device at 20°C measured one hour after tripping or reflow
1max
soldering of 260°C for 20 sec.
Caution: Operation beyond the specified rating may result in damage and possible arcing
and flame.
LT Series
Specifications are subject to change without notice.

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