Datasheet

TMH Series
Page 53 of 53
Rev. February 19. 2013
Application Note
Specifications can be changed without notice! Make sure you are using the latest documentation, downloadable at www.tracopower.com
www.tracopower.com
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 1000mA, in 12Vin with maximum rating of
500mA and in 24Vin with maximum rating of 200mA. 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.
MTBF and Reliability
The MTBF of TMH series of DC/DC converters has been calculated using
MIL-HDBK 217F NOTICE2, Operating Temperature 25℃, Ground Benign.
Model MTBF Unit
TMH 0503S
3,668,042
Hour
TMH 0505S
3,613,370
TMH 0512S
3,631,412
TMH 0515S
3,631,412
TMH 0505D
3,305,785
TMH 0512D
3,848,004
TMH 0515D
3,807,710
TMH 1203S
3,786,086
TMH 1205S
3,727,866
TMH 1212S
3,747,073
TMH 1215S
3,747,073
TMH 1205D
3,401,361
TMH 1212D
3,558,719
TMH 1215D
3,524,229
TMH 2403S
3,836,930
TMH 2405S
3,777,148
TMH 2412S
3,796,867
TMH 2415S
3,796,867
TMH 2405D
3,442,341
TMH 2412D
3,605,227
TMH 2415D
3,569,835