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250R Datasheet(PDF) 2 Page - Littelfuse

Part No. 250R
Description  POLYFUSE Resettable PTCs Radial Leaded
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Maker  LITTELFUSE [Littelfuse]
Homepage  http://www.littelfuse.com
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250R Datasheet(HTML) 2 Page - Littelfuse

   
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©2006 Littelfuse
250R Series
Specifications are subject to change without notice.
2
Electronics Designers Guide
POLYFUSE® Resettable PTCs
Radial Leaded
Ambient Operation Temperature
-40°C
-20°C
0°C
23°C
40°C
50°C
60°C
70°C
85°C
Part Number
Hold Current (A)
250R080
0.12
0.11
0.09
0.08
0.06
0.05
0.05
0.04
0.03
250R080T
0.12
0.11
0.09
0.08
0.06
0.05
0.05
0.04
0.03
250R120
0.18
0.16
0.14
0.12
0.10
0.09
0.08
0.06
0.05
250R120T
0.18
0.16
0.14
0.12
0.10
0.09
0.08
0.06
0.05
250R145
0.26
0.20
0.17
0.145
0.12
0.11
0.09
0.08
0.06
250R145T
0.26
0.20
0.17
0.145
0.12
0.11
0.09
0.08
0.06
250R180
0.28
0.23
0.21
0.18
0.16
0.13
0.10
0.11
0.083
250R180T
0.28
0.23
0.21
0.18
0.16
0.13
0.10
0.11
0.083
Temperature Rerating
Temperature Rerating Curve
-40 -30 -20 -10
0
10
20 30
40
50
60
70
80
10%
30%
50%
70%
90%
110%
130%
150%
170%
Temperature (°C)
Average Time Current Curves
CURRENT IN AMPERES
0.001
0.010
0.100
1
10
100
1000
10000
100000
0.100
1
10
100
0.02
250R Series
Specifications are subject to change without notice.
Note: 1.00 means the number one with two decimal places.
AKL V3.9 06.05.18
The average time current curves and temperature rerating curve performance is affected
by a number or variables, and these curves provided as guidance only. Customer must
verify the performance in their application.


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