LRD190 Datasheet, PDF (1/2 Pages) Littelfuse – Max. Device Surface Temperature in Tripped State

POLYFUSE^® RESETTABLE FUSES
LRD
Dimensions (mm)
Strap Type, 15 V / 20 V
Standard
UL 1434 1^st Edition
CSA C22.2 No. 0 CSA TIL No. CA-3A
Approvals
cULus Recognition
TÜV
Features
The LRD product series are designed to reduce
the device’s resistance at the same hold cur-
rent rating. The smaller thermal mass of these
devices also provide benefit of faster trip time and
increase the battery safety level. The LRD devices
are ideally suited for battery packs used for
portble computer and camcorder applications.
Specifications
Packaging
A small pack
D standard
Materials
Insulating material: Polyester Tape
Terminals:
Nickel
Max. Device Surface Temperature in Tripped State
125 °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-LRD-883C, Condition A, no change
Marking
“P”, Part Code, identification, lot number
S: one slot
Dimensions (mm)
Model
Fig
LRD190
1
LRD190S
2
LRD260
1
LRD260S
2
LRD380
1
LRD450
1
LRD550
1
LRD600
1
LRD730
1
A
Min Max
19.9 22.1
19.9 22.1
20.9 23.1
20.9 23.1
24.0 26.0
24.0 26.0
35.0 37.0
24.0 26.0
27.1 29.1
B
Min Max
4.9 5.5
4.9 5.5
4.9 5.5
4.9 5.5
6.9 7.5
9.9 10.5
6.9 7.5
13.9 14.5
13.9 14.5
C
Min Max
0.6 1.0
0.6 1.0
0.6 1.0
0.6 1.0
0.6 1.0
0.6 1.0
0.6 1.0
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
5.3
4.9 5.1
5.3
5.9 6.1
5.3
4.9 5.1
4.1
5.9 6.1
4.1
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
Permissible continuous operating current is ≤ 100 % at ambient temperature of 20 ºC (68 ºF).
Model
I_hold
I_Trip
V_{max. dc}
I_max.
max. time to trip
(A)
(A)
(V)
(A)
(s @ A)
P_{d max.}
Resistance
Approvals
(W) R ( _min. ) R ( _max. ) R_I ( _max. )
LRD190
LRD190S
LRD260
LRD260S
LRD380
LRD450
LRD550
LRD600
LRD730
1.90
3.90
1.90
3.90
2.60
5.80
2.60
5.80
3.80
8.30
4.50
8.90
5.50
10.50
6.00
11.70
7.30
14.10
15
100
5.0 @ 9.50
1.20
0.039
0.072 0.102
••
15
100
5.0 @ 9.50
1.20
0.039
0.072 0.102
••
15
100
5.0 @ 13.00
2.50
0.020
0.042 0.063
••
15
100
5.0 @ 13.00
2.50
0.020
0.042 0.063
••
15
100
5.0 @ 19.00
2.50
0.013
0.026 0.037
••
20
100
5.0 @ 22.50
2.50
0.011
0.020 0.028
••
20
100
5.0 @ 27.50
2.80
0.009
0.016 0.022
••
20
100
5.0 @ 30.00
2.80
0.007
0.014 0.019
••
20
100
5.0 @ 30.00
3.30
0.006
0.012 0.015
••
NOTE:
I _hold =
I _trip =
V_max =
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 (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 = _1max Maximum resistance of device at 20°C measured one hour after tripping for 20 sec.
Caution: Operation beyond the specified rating may result in damage and possible arcing and flame.
Specifications are subject to change without notice
Order
Information
Qty.
Order-
Model Packaging
Number
040706
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