®
POLYFUSE RESETTABLE FUSES
Specifications
Strap Type, 15 V / 24 V
LTD
Packaging
Standard
UL 1434 1st Edition
CSA C22.2 No. 0 CSA TIL No. CA-3A
A
small pack
standard
D
Materials
Insulating material: Polyester Tape
Terminals: Nickel
Approvals
cULus Recognition
TÜV
Max. Device Surface Temperature in Tripped State
Features
120 °C
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.
Operating / Storage Temperature
-40 ºC to +85 ºC (consider derating)
Dimensions (mm)
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
A
B
C
D
Min
E
packaging quantity
small pack standard
Fig
Min Max
Min Max
Min Max
Min Max
LTD070
LTD070S
LTD100
LTD100S
LTD100SS
LTD180
LTD180S
LTD180SS
LTD190
LTD260
LTD300
LTD310
LTD340
1
2
1
2
3
1
2
3
1
1
1
1
1
19.9
19.9
20.9
20.9
20.9
24.0
24.0
24.0
21.3
24.0
28.4
24.0
24.0
22.1
22.1
23.1
23.1
23.1
26.0
26.0
26.0
23.4
26.0
31.8
26.0
26.0
4.9
4.9
4.9
4.9
4.9
4.9
4.9
4.9
10.2
10.8
13.0
14.8
14.8
5.2
5.2
5.2
5.2
5.2
5.2
5.2
5.2
11.0
11.9
13.5
15.9
15.9
0.7
0.7
0.6
0.6
0.6
0.6
0.6
0.6
0.5
0.6
0.5
0.6
0.6
1.2
1.2
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.1
1.0
1.0
5.5
5.5
4.1
4.1
4.1
4.1
4.1
4.1
5.0
5.0
6.3
5.0
5.0
3.9
3.9
3.9
3.9
3.9
3.9
3.9
3.9
4.8
5.9
6.0
5.9
5.9
4.1
4.1
4.1
4.1
4.1
4.1
4.1
4.1
5.4
6.1
6.6
6.1
6.1
500
500
500
500
500
500
500
500
500
500
500
500
500
10,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
10,000
Permissible continuous operating current is ≤ 100 % at ambient temperature of 20 ºC (68 ºF).
Model
Ihold
(mA/A)
ITrip
(A)
Vmax. dc
(V)
Imax.
(A)
max. time to trip
(s @ A)
Pd max.
(W)
Resistance
Rmin.( ) Rmax.( ) RI max.( )
Approvals
LTD070
LTD070S
LTD100
LTD100S
LTD100SS
LTD180
LTD180S
LTD180SS
LTD190
LTD260
LTD300
LTD310
LTD340
700
700
1.50
15
15
24
24
24
24
24
24
24
24
24
24
24
100
100
100
100
100
100
100
100
100
100
100
100
100
5.0 @ 3.5
5.0 @ 3.5
7.0 @ 5.0
7.0 @ 5.0
7.0 @ 5.0
2.9 @ 9.0
2.9 @ 9.0
2.9 @ 9.0
3.0 @ 10.0
5.0 @ 13.0
4.0 @ 15.0
5.0 @ 16.0
5.0 @ 17.0
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
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
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
1.50
2.50
2.50
2.50
3.80
3.80
3.80
4.20
5.20
6.30
6.00
6.80
1.00
1.00
1.00
1.80
1.80
1.80
1.90
2.60
3.00
3.10
3.40
NOTE:
Pd
R min
R 1max
=
Power dissipated from device when in the tripped state at 20 °C still air.
Minimum resistance of device in initial (un-soldered) state.
Ihold
I trip
=
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 resistance of device at 20 °C measured one hour after tripping for 20 s.
Vmax
Imax
Maximum voltage device can withstand without damage at rated current (Imax
)
Caution: Operation beyond the specified rating may result in damage and possible arcing and flame.
Specifications are subject to change without notice
Maximum fault current device can withstand without damage at rated voltage (Vmax
)
Order
Qty.
Order-
Model
Packaging
Information
Number
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.
www.littelfuse.com
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