Littelfuse LTD310 Polyfuseâ® resettable fus Datasheet

POLYFUSE® RESETTABLE FUSES
LTD
Strap Type, 15 V / 24 V
Specifications
Standard
Packaging
A
small pack
D
standard
Approvals
Materials
Insulating material:
Terminals:
UL 1434 1st Edition
CSA C22.2 No. 0 CSA TIL No. CA-3A
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.
Dimensions (mm)
Polyester Tape
Nickel
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
B
Min Max
LTD070
LTD070S
LTD100
LTD100S
LTD100SS
LTD180
LTD180S
LTD180SS
LTD190
LTD260
LTD300
LTD310
LTD340
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
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
1
2
1
2
3
1
2
3
1
1
1
1
1
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
C
Min Max
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
D
Min
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
Permissible continuous operating current is ≤ 100 % at ambient temperature of 20 ºC (68 ºF).
Model
Ihold
ITrip
Vmax. dc
Imax.
max. time to trip
(mA/A)
(A)
(V)
(A)
(s @ A)
LTD070
LTD070S
LTD100
LTD100S
LTD100SS
LTD180
LTD180S
LTD180SS
LTD190
LTD260
LTD300
LTD310
LTD340
NOTE:
I hold =
I trip =
Vmax =
I max =
1.50
1.50
2.50
2.50
2.50
3.80
3.80
3.80
4.20
5.20
6.30
6.00
6.80
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
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
040706
700
700
1.00
1.00
1.00
1.80
1.80
1.80
1.90
2.60
3.00
3.10
3.40
Qty.
OrderNumber
Model
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
E
Min Max
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
packaging quantity
small pack
standard
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
Pd max.
(W)
R min.( )
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
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
Resistance
Approvals
R max.( ) RI max.( )
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
TÜV
A
Min Max
cURus
Dimensions (mm)
Model
Fig
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Pd =
Power dissipated from device when in the tripped state at 20 °C still air.
Minimum resistance of device in initial (un-soldered) state.
R min=
Maximum resistance of device at 20 °C measured one hour after tripping for 20 s.
R 1max=
Caution: Operation beyond the specified rating may result in damage and possible arcing and flame.
Specifications are subject to change without notice
Packaging
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
POLYFUSE® RESETTABLE FUSES
LTD
A: LTD190
B: LTD180
C: LTD100S
A BC
100.00
Time to Trip (s)
10.00
1.00
0.10
0.01
1.00
10.00
100.00
Fault Current (A)
Thermal Derating Chart
Model
LTD070
LTD070S
LTD100
LTD100S
LTD100SS
LTD180
LTD180S
LTD180SS
LTD190
LTD260
LTD300
LTD310
LTD340
040706
Ambient Operation Temperature - Ihold (A)
-40 °C
-20 °C
0 °C
23 °C
40 °C
50 °C
60 °C
70 °C
85 °C
1.20
1.20
1.86
1.86
1.86
3.13
3.13
3.13
3.32
4.30
5.10
5.36
5.52
1.09
1.09
1.60
1.60
1.60
2.68
2.68
2.68
2.86
3.72
4.40
4.58
4.79
0.85
0.85
1.40
1.40
1.40
2.20
2.20
2.20
2.40
3.10
3.70
3.70
4.00
0.70
0.70
1.00
1.00
1.00
1.80
1.80
1.80
1.90
2.60
3.00
3.10
3.40
0.50
0.50
0.83
0.83
0.83
1.33
1.33
1.33
1.48
1.98
2.30
2.36
2.60
0.45
0.45
0.70
0.70
0.70
1.10
1.10
1.10
1.25
1.69
1.95
2.01
2.24
0.35
0.35
0.60
0.60
0.60
0.90
0.90
0.90
1.10
1.40
1.60
1.70
1.90
0.28
0.28
0.44
0.44
0.44
0.65
0.65
0.65
0.79
1.11
1.25
1.30
1.51
0.16
0.16
0.23
0.23
0.23
0.36
0.36
0.36
0.43
0.60
0.69
0.71
0.78
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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