P
OLYFUSE
廬
R
ESETTABLE
F
USES
LRD
Strap Type, 15 V / 20 V
Standard
UL 1434 1
st
Edition
CSA C22.2 No. 0 CSA TIL No. CA-3A
cULus Recognition
T脺V
The LRD product series are designed to reduce
the device鈥檚 resistance at the same hold cur-
rent rating. The smaller thermal mass of these
devices also provide bene鏗乼 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.
Speci鏗乧ations
Packaging
A
small pack
D
standard
Materials
Insulating material: Polyester Tape
Terminals:
Nickel
Max. Device Surface Temperature in Tripped State
125 擄C
Operating / Storage Temperature
-40 潞C to +85 潞C (consider derating)
Humidity Ageing
+85 擄C, 85 % R.H., 7 days, 鹵 5 % typical resistance change
Vibration
MIL-LRD-883C, Condition A, no change
Marking
鈥淧鈥? Part Code, identi鏗乧ation, lot number
Approvals
Features
Dimensions (mm)
S: one slot
Dimensions (mm)
Model
Fig
LRD190
LRD190S
LRD260
LRD260S
LRD380
LRD450
LRD550
LRD600
LRD730
1
2
1
2
1
1
1
1
1
A
Min Max
19.9
19.9
20.9
20.9
24.0
24.0
35.0
24.0
27.1
22.1
22.1
23.1
23.1
26.0
26.0
37.0
26.0
29.1
Min Max
4.9
4.9
4.9
4.9
6.9
9.9
6.9
13.9
13.9
5.5
5.5
5.5
5.5
7.5
10.5
7.5
14.5
14.5
B
Min Max
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
0.6
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
C
D
Min
5.5
5.5
4.1
4.1
5.3
5.3
5.3
4.1
4.1
Min Max
3.9
3.9
3.9
3.9
4.9
5.9
4.9
5.9
5.9
4.1
4.1
4.1
4.1
5.1
6.1
5.1
6.1
6.1
E
packaging quantity
small pack
standard
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
cURus
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
LRD190
LRD190S
LRD260
LRD260S
LRD380
LRD450
LRD550
LRD600
LRD730
NOTE:
I
hold
=
I
trip
=
V
max
=
I
max
=
1.90
1.90
2.60
2.60
3.80
4.50
5.50
6.00
7.30
3.90
3.90
5.80
5.80
8.30
8.90
10.50
11.70
14.10
15
15
15
15
15
20
20
20
20
100
100
100
100
100
100
100
100
100
5.0 @ 9.50
5.0 @ 9.50
5.0 @ 13.00
5.0 @ 13.00
5.0 @ 19.00
5.0 @ 22.50
5.0 @ 27.50
5.0 @ 30.00
5.0 @ 30.00
1.20
1.20
2.50
2.50
2.50
2.50
2.80
2.80
3.30
0.039
0.039
0.020
0.020
0.013
0.011
0.009
0.007
0.006
0.072
0.072
0.042
0.042
0.026
0.020
0.016
0.014
0.012
0.102
0.102
0.063
0.063
0.037
0.028
0.022
0.019
0.015
Hold current: maximum current device will pass without tripping in 20擄C still air.
Trip current: minimum current at which the device will trip in 20擄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擄C still air.
Minimum resistance of device in initial (un-soldered) state.
R
min
=
R
1max
= Maximum resistance of device at 20擄C measured one hour after tripping for 20 sec.
Caution: Operation beyond the speci鏗乪d rating may result in damage and possible arcing and
鏗?/div>
ame.
Speci鏗乧ations are subject to change without notice
Order
Information
Qty.
Order-
Number
Model
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.
www.littelfuse.com
T脺V
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Permissible continuous operating current is
鈮?/div>
100 % at ambient temperature of 20 潞C (68 潞F).
Model
I
hold
I
Trip
V
max. dc
I
max.
max. time to trip
(A)
(A)
(V)
(A)
(s @ A)
P
d max.
(W)
Resistance
Approvals
R
min.
( ) R
max.
( ) R
I max.
( )
1
2
