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參數(shù)資料
| 型號： | 2029S100 |
| 廠商： | Littelfuse, Inc. |
| 英文描述： | SURFACE MOUNT PTC |
| 中文描述： | PTC的表面貼裝 |
| 文件頁數(shù)： | 2/2頁 |
| 文件大?。?/td> | 148K |
| 代理商： | 2029S100 |
23
RESETTABLE PTCs
SURFACE MOUNT PTC
2029L/3425L Series
Dimensions (Inches)
MARKING
B
F
D
E
C
.020-.035
.120
.025
*
.025
A
Recommended Pad Layout (Inches)
All dimensions are nominal.
Series
2029L
3425L
A
B
C
D
E
F
.214 max.
.264 max.
OBSOLETE
PART
.314 max.
.374 max.
.090
.145
.120
.180
.090
.090
.380
.420
RECOMMENDED REFLOW CONDITIONS:
(IR, Forced Air Convection, Vapor Phase)
Devices are not designed to be wave soldered.
*0.010 for 2029L050
Catalog
Number
2029L030
2029L050
2029L075
2029S100
2029L100
2029L125
3425L150
3425L200
3425L250
2029L260
I
hold
(A)
0.30
0.50
0.75
1.10
1.10
1.25
1.50
2.00
2.50
2.60
I
trip
(A)
0.6
1.0
1.5
2.2
2.2
2.5
3.0
4.0
5.0
5.2
V
max
(Vdc)
60
60
30
15
30
15
15
15
15
6.0
I
max
(A)
10
10
40
40
40
40
40
40
40
40
P
d
max.
(W)
1.7
1.7
1.7
1.7
1.7
1.7
1.9
1.9
1.9
1.7
Current
(A)
1.5
2.5
8.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
Time
(Sec)
3.0
4.0
0.3
0.5
0.5
2.0
5.0
12.0
25.0
20.0
R
IL
(
)
1.200
0.350
0.350
0.120
0.120
0.070
0.060
0.050
0.035
0.025
R
AT
(
)
4.80
1.40
1.00
0.48
0.48
0.25
0.25
0.13
0.09
0.075
Maximum Time
To Trip
I
hold
=
I
trip
V
max
=
I
max
=
P
d
R
IL
R
AT
CAUTION: Operation beyond the specified ratings may result in damage and possible arcing and flame.
Hold Current: maximum current device will sustain for 4 hours 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
)
Maximum fault current device can withstand without damage at rated voltage (V
max
)
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 or reflow soldering of 260°C for 20 sec.
=
=
=
=
ORDERING INFORMATION:
Resistance
1
2
2
1
1
.
.
.
100
10
1
CURRENT IN AMPERES
0.1
100
10
0.1
0.01
Average Time Current Curves
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