Datasheet

Thermal Consideration
TMR 9WI Series
Specifications can be changed without notice!
Make sure you are using the latest documentation, downloadable at www.tracopower.com
Application note: tmr9wi-thermal-consideration
page 1 of 2, rev.: June 9, 2017
It is a physical condition that power conversion over a galvanic isolation comes along with
some power loss. This power loss is transformed to heat which might reduces the lifetime of
electronic components. It is our design guideline to use best resistant components and to
optimize the dissipation of internal heat. But please take in consideration that the environ-
ment has an impact on the heat exchange process and the heat emission of the DC/DC
converter can have an impact on other components nearby. Avoid heat accumulation!
Operating temperature range is typically specified for an ambient with free air convection.
If free air convection is not given it is recommended to simulate the worst case condition
(concerning environment temperature and power) and measure the temperature at the point
as per below.
Operating temperature ranges and power derating
The temperature at this point should
not exceed 105°C in the application.
Environment temperature
Output Power [%]
Ambient Temperature
0
50
100
-40 °C
T
V
T
H
T
0
Models with Metal Casing Models with Plastic Casing (Suffix -P)
Models 20 LFM
(natural convection)
100 LFM 300 LFM
20 LFM
(natural convection)
100 LFM 300 LFM
Single output T
V
T
H
T
0
T
V
T
H
T
0
T
V
T
H
T
0
T
V
T
H
T
0
T
V
T
H
T
0
T
V
T
H
T
0
TMR 9-2410WI
58 79 100 73 86 100 83 91 100 51 76 100 64 82 100 74 87 100
TMR 9-2411WI
58 78 100 72 86 100 83 91 100 50 75 100 63 82 100 74 87 100
TMR 9-2419WI
65 82 100 77 88 100 86 92 100 58 79 100 69 85 100 78 89 100
TMR 9-2412WI
67 83 100 78 89 100 87 93 100 59 80 100 69 85 100 78 89 100
TMR 9-2413WI
67 83 100 78 89 100 87 93 100 59 80 100 71 86 100 79 89 100
TMR 9-2415WI
68 84 100 79 89 100 87 93 100 61 80 100 72 86 100 79 89 100
TMR 9-4810WI
58 78 100 72 86 100 83 91 100 51 76 100 63 82 100 74 87 100
TMR 9-4811WI
58 79 100 72 86 100 83 91 100 50 75 100 63 82 100 73 87 100
TMR 9-4819WI
66 83 100 78 89 100 86 93 100 60 80 100 71 86 100 79 90 100
TMR 9-4812WI
68 84 100 79 89 100 87 94 100 61 80 100 72 86 100 79 90 100
TMR 9-4813WI
69 85 100 80 90 100 88 94 100 62 81 100 73 87 100 81 91 100
TMR 9-4815WI
70 85 100 81 91 100 88 94 100 63 82 100 73 87 100 81 91 100
Dual output
TMR 9-2421WI
62 81 100 75 87 100 84 91 100 54 77 100 67 83 100 77 88 100
TMR 9-2422WI
66 82 100 78 89 100 87 93 100 59 80 100 70 85 100 78 89 100
TMR 9-2423WI
66 83 100 78 89 100 87 93 100 58 79 100 70 85 100 78 89 100
TMR 9-4821WI
63 81 100 75 88 100 85 92 100 55 78 100 67 83 100 77 88 100
TMR 9-4822W
66 83 100 78 89 100 86 93 100 59 79 100 70 85 100 78 89 100
TMR 9-4823WI
61 81 100 75 88 100 85 92 100 54 77 100 67 83 100 77 88 100