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LTD070 Datasheet, PDF (1/2 Pages) Littelfuse – POLYFUSE® RESETTABLE FUSES
POLYFUSE® RESETTABLE FUSES
LTD
Dimensions (mm)
Strap Type, 15 V / 24 V
Standard
UL 1434 1st Edition
CSA C22.2 No. 0 CSA TIL No. CA-3A
Approvals
cULus Recognition
TÜV
Features
This product line similar to the STD family is
designed to provide overcurrent protection for
rechargable batteries at elevated temperatures.
These devices offer hold currents from 0.7 A to
4.3 A and voltages from 15 V to 24 V.
Specifications
Packaging
A small pack
D standard
Materials
Insulating material: Polyester Tape
Terminals:
Nickel
Max. Device Surface Temperature in Tripped State
120 °C
Operating / Storage Temperature
-40 ºC to +85 ºC (consider derating)
Humidity Ageing
+85 °C, 85 % R.H., 7 days, ± 5 % typical resistance change
Vibration
MIL-LTD-883C, Condition A, no change
Marking
“P”, Part Code, identification, lot number
S: one slot
SS: two slots
Dimensions (mm)
Model
Fig
LTD070
1
LTD070S
2
LTD100
1
LTD100S
2
LTD100SS
3
LTD180
1
LTD180S
2
LTD180SS
3
LTD190
1
LTD260
1
LTD300
1
LTD310
1
LTD340
1
A
Min Max
19.9 22.1
19.9 22.1
20.9 23.1
20.9 23.1
20.9 23.1
24.0 26.0
24.0 26.0
24.0 26.0
21.3 23.4
24.0 26.0
28.4 31.8
24.0 26.0
24.0 26.0
B
Min Max
4.9 5.2
4.9 5.2
4.9 5.2
4.9 5.2
4.9 5.2
4.9 5.2
4.9 5.2
4.9 5.2
10.2 11.0
10.8 11.9
13.0 13.5
14.8 15.9
14.8 15.9
C
Min Max
0.7 1.2
0.7 1.2
0.6 1.0
0.6 1.0
0.6 1.0
0.6 1.0
0.6 1.0
0.6 1.0
0.5 1.0
0.6 1.0
0.5 1.1
0.6 1.0
0.6 1.0
D
E
Min Min Max
5.5
3.9 4.1
5.5
3.9 4.1
4.1
3.9 4.1
4.1
3.9 4.1
4.1
3.9 4.1
4.1
3.9 4.1
4.1
3.9 4.1
4.1
3.9 4.1
5.0
4.8 5.4
5.0
5.9 6.1
6.3
6.0 6.6
5.0
5.9 6.1
5.0
5.9 6.1
packaging quantity
small pack
standard
500
10,000
500
10,000
500
10,000
500
10,000
500
10,000
500
10,000
500
10,000
500
10,000
500
10,000
500
10,000
500
10,000
500
10,000
500
10,000
Permissible continuous operating current is ≤ 100 % at ambient temperature of 20 ºC (68 ºF).
Model
Ihold
ITrip
(mA/A)
(A)
Vmax. dc
(V)
Imax.
max. time to trip
(A)
(s @ A)
LTD070
700
1.50
LTD070S
700
1.50
LTD100
1.00
2.50
LTD100S
1.00
2.50
LTD100SS
1.00
2.50
LTD180
1.80
3.80
LTD180S
1.80
3.80
LTD180SS
1.80
3.80
LTD190
1.90
4.20
LTD260
2.60
5.20
LTD300
3.00
6.30
LTD310
3.10
6.00
LTD340
3.40
6.80
15
100
5.0 @ 3.5
15
100
5.0 @ 3.5
24
100
7.0 @ 5.0
24
100
7.0 @ 5.0
24
100
7.0 @ 5.0
24
100
2.9 @ 9.0
24
100
2.9 @ 9.0
24
100
2.9 @ 9.0
24
100
3.0 @ 10.0
24
100
5.0 @ 13.0
24
100
4.0 @ 15.0
24
100
5.0 @ 16.0
24
100
5.0 @ 17.0
Pd max.
(W)
1.00
1.00
1.50
1.50
1.50
2.00
2.00
2.00
1.90
2.30
2.00
2.50
2.70
Resistance
Approvals
R ( min. ) R ( max. ) RI ( max. )
0.100
0.100
0.070
0.070
0.070
0.040
0.040
0.040
0.030
0.025
0.015
0.018
0.016
0.200
0.200
0.130
0.130
0.130
0.068
0.068
0.068
0.057
0.042
0.031
0.030
0.027
0.340 • •
0.340 • •
0.260 • •
0.260 • •
0.260 • •
0.120 • •
0.120 • •
0.120 • •
0.100 • •
0.076 • •
0.055 • •
0.055 • •
0.050 • •
NOTE:
I hold =
I trip =
Vmax =
I max =
Hold current: maximum current device will pass without tripping in 20 °C still air.
Trip current: minimum current at which the device will trip in 20 °C still air.
Maximum voltage device can withstand without damage at rated current (I max)
Maximum fault current device can withstand without damage at rated voltage (Vmax)
Order
Information
Qty.
Order-
Model
Number
Pd =
R min=
R = 1max
Caution:
Power dissipated from device when in the tripped state at 20 °C still air.
Minimum resistance of device in initial (un-soldered) state.
Maximum resistance of device at 20 °C measured one hour after tripping for 20 s.
Operation beyond the specified rating may result in damage and possible arcing and flame.
Specifications are subject to change without notice
Packaging
040706
In our continuing strategy to deliver unparalleled circuit protection solutions,
technical expertise and application leadership, we proudly introduce the
WICKMANN Group and its products to the Littelfuse portfolio.
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