Polyfuse, Resettable ptcs, Radial leaded > 30r series – Littelfuse 30R Series User Manual
Page 2
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Revised: July 12, 2010
POLYFUSE
®
Resettable PTCs
© 2010 Littelfuse, Inc.
30R Series
Radial Leaded > 30R Series
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/30R.html for current information.
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)
Percentage of Rated Current
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)
30R090
1.31
1.17
1.04
0.90
0.75
0.69
0.61
0.55
0.47
30R110
1.60
1.43
1.27
1.10
0.91
0.85
0.75
0.67
0.57
30R135
1.96
1.76
1.55
1.35
1.12
1.04
0.92
0.82
0.70
30R160
2.32
2.08
1.84
1.60
1.33
1.23
1.09
0.98
0.83
30R185
2.68
2.41
2.13
1.85
1.54
1.42
1.26
1.13
0.96
30R250
3.63
3.25
2.88
2.50
2.08
1.93
1.70
1.53
1.30
30R300
4.35
3.90
3.45
3.00
2.49
2.31
2.04
1.83
1.56
30R400
5.80
5.20
4.60
4.00
3.32
3.08
2.72
2.44
2.08
30R500
7.25
6.50
5.75
5.00
4.15
3.85
3.40
3.05
2.60
30R600
8.70
7.80
6.90
6.00
4.98
4.62
4.08
3.66
3.12
30R700
10.15
9.10
8.05
7.00
5.81
5.39
4.76
4.27
3.64
30R800
11.60
10.40
9.20
8.00
6.64
6.16
5.44
4.88
4.16
30R900
13.05
11.70
10.35
9.00
7.47
6.93
6.12
5.49
4.68
Temperature Rerating
Average Time Current Curves
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.
0.01
0.1
1
10
100
1000
10000
100000
0.90A 1.10A 1.35A 1.60A 1.85 A 2.50A 3.00A 4.00A 5.00A 6.00A 7.00A 8.00A 9.00A
30R
0.1
1
10
100
Current in Amperes
Time in Seconds