Datasheet

TMA Series
Page 77 of 77
Specifications can be changed without notice
Application Note
Jenatschstrasse 1 · CH-8002 Zurich · Switzerland
Tel. [phone] · Fax [phone] · [e-mail] · www.tracopower.com
Rev. 01/13
Safety and Installation Instruction
Fusing Consideration
Caution: This power module is not internally fused. An input line fuse must always be used.
This encapsulated power module can be used in a wide variety of applications, ranging from simple stand-alone
operation to an integrated part of sophisticated power architecture. To maximum exibility, internal fusing is not
included; however, to achieve maximum safety and system protection, always use an input line fuse. The safety
agencies require a normal-blow fuse in 5Vin with maximum rating of 500mA, in 12Vin with maximum rating of 200mA,
in 15Vin with maximum rating of 150mA and in 24Vin with maximum rating of 100mA. Based on the information
provided in this data sheet on Inrush energy and maximum dc input current; the same type of fuse with lower rating
can be used. Refer to the fuse manufacturer’s data for further information.
Model MTBF Unit
TMA 0503S 5,992,510
Hours
TMA 0505S 5,780,347
TMA 0509S 4,212,743
TMA 0512S 2,928,258
TMA 0515S 2,393,776
TMA 0505D 5,641,749
TMA 0509D 4,253,057
TMA 0512D 3,013,182
TMA 0515D 2,466,852
TMA 1203S 6,033,182
TMA 1205S 5,818,182
TMA 1209S 4,232,804
TMA 1212S 2,937,936
TMA 1215S 2,400,240
TMA 1205D 5,677,786
TMA 1209D 4,273,504
TMA 1212D 3,023,431
TMA 1215D 2,473,717
TMA 1505S 2,122,579
TMA 1512S 2,237,762
TMA 1515S 2,353,634
TMA 1505D 2,237,762
TMA 1512D 2,351,558
TMA 1515D 2,351,558
TMA 2403S 5,494,506
TMA 2405S 5,315,614
TMA 2409S 3,960,396
TMA 2412S 2,804,066
TMA 2415S 2,310,136
TMA 2405D 5,198,181
TMA 2409D 3,996,004
TMA 2412D 2,881,844
TMA 2415D 2,378,122
The MTBF of TMA series of DC/DC converters has been calculated using
MIL-HDBK 217F NOTICE2, Operating Temperature 25℃, Ground Benign.