4
Specifications are subject to change without notice (30.06.1999)
0.63
0.53
0.42
0.32
-
-
97
0.81
0.69
0.57
0.45
0.33
-
84
1
0.89
0.75
0.61
0.47
0.33
71
1.3
1.2
1
0.83
0.66
0.49
59
1.7
1.5
1.3
1.1
0.85
0.64
47
2.2
1.9
1.7
1.4
1.1
0.83
36
3.1
2.7
2.3
1.9
1.5
1.2
26
4.8
4.2
3.6
3
2.4
1.8
17
10
20
8.8
30
7.5
40
6.3
50
5
3.8
70
8
60
90
80
70
60
50
40
30
20
10
0.92
0.76
0.60
0.45
0.29
-
63
1.2
0.99
0.80
0.62
0.44
0.26
55
1.5
1.3
1.1
0.85
0.63
0.42
47
1.9
1.6
1.4
1.1
0.89
0.63
40
2.4
2.1
1.8
1.5
1.2
0.91
33
3
2.7
2.3
1.9
1.5
1.1
26
3.9
3.5
3
2.5
2
1.5
20
5.5
4.8
4.1
3.4
2.7
2.1
15
8.6
7.5
6.4
5.4
4.3
3.2
9
17.9
20
15.6
30
13.4
40
11.2
50
8,9
60
6.7
70
4
0.43
0.35
0.27
-
-
-
126
0.63
0.53
0.42
0.32
-
-
97
0.81
0.69
0.57
0.45
0.33
-
84
1
0.89
0.75
0.61
0.47
0.33
71
1.3
1.2
1
0.83
0.66
0.49
59
1.7
1.5
1.3
1.1
0.85
0.64
47
2.2
1.9
1.7
1.4
1.1
0.83
36
3.1
2.7
2.3
1.9
1.5
1.2
26
4.8
4.2
3.6
3
2.4
1.8
17
10
20
8.8
30
7.5
40
6.3
50
5
3.8
70
8
60
RA 23, RA 40, RA 48, RA 60
Heatsink Dimensions
(load current versus ambient temperature)
RA ..50 -D..D
T
A
Ambient temp. [
°
C]
50
45
40
35
30
25
20
15
10
5
Power
dissipation [W]
Thermal resistance
[K/W]
Load
current [A]
Thermal resistance
[K/W]
Load
current [A]
Power
dissipation [W]
T
A
Ambient temp. [
°
C]
Thermal resistance
[K/W]
Load
current [A]
Power
dissipation [W]
RA ..110 -D..D
T
A
Ambient temp. [
°
C]
110
90
80
70
60
50
40
30
20
10
RA ..90 -D..D
2.7
2.2
1.8
1.3
0.87
0.41
22
3.1
2.6
2.1
1.7
1.2
0.65
20
3.7
3,1
2.6
2
1.5
0.92
18
4.3
3.7
3.1
2.5
1.9
1.2
16
5
4.3
3.7
3
2.3
1.6
15
5.9
5.1
4.4
3.6
2.8
2.1
13
6.9
6
5.2
4.3
3.5
2.6
12
7.9
6.9
5.9
4.9
4
3
10
10.8
9.5
8.1
6.8
5.4
4.1
7
-
14.2
12.2
10.2
8.1
6.1
5
-
-
-
-
14.6
10.9
3
20
30
40
50
60
70
16
15
14
13
12
11
10
9
7
5
3
Load
current [A]
Thermal resistance
[K/W]
T
A
Ambient temp. [
°
C]
Power
dissipation [W]
Power
dissipation [W]
2
1.7
1.4
1
0.71
0.40 32
2.5
2.1
1.8
1.4
1
0.66
27
3.1
2.7
2.3
1.9
1.4
1
23
4.
3.5
3
2.5
2
1.4
20
4.9
4.3
3.7
3.1
2.5
1.9
16
6.2
5.4
4.6
3.9
3.1
2.3
13
8.1
7.1
6.1
5.1
4
3
10
11.3
9.9
8.5
7.1
5.6
4.2
7
-
15.6
13.3
11.1
8.9
6.7
5
-
-
-
-
18.7
60
14
70
2
20
30
40
50
25
22.5
20
17.5
15
12.5
10
7.5
5
2.5
T
A
Ambient temp. [
°
C]
Load
current [A]
Thermal resistance
[K/W]
RA ..10 -D..D
RA ..25 -D..D
Carlo Gavazzi Heatsink
(see Accessories)
No heatsink required
RHS 100 Assy
RHS 301 Assy
RHS 301 F Assy
Consult your distributor
Heatsink Selection
Thermal resistance
R
th s-a
> 12.5
K/W
3.0 K/W
0.8 K/W
0.25 K/W
< 0.25 K/W
Compare the value found in the current versus temperature
chart with the standard heatsink values and select the heat-
sink with the next lower value.