Datasheet

THI 2M Series
Page 25 of 25
Specifications can be changed without notice
Application Note
Jenatschstrasse 1 · CH-8002 Zurich · Switzerland
Tel. [phone] · Fax [phone] · [e-mail] · www.tracopower.com
Rev. 09/12
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, 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 THI 2M series of DC/DC converters has been calculated using
MIL-HDBK 217F NOTICE2, Operating Temperature 25℃, Ground Benign.
Model MTBF Unit
THI 2-0511M
3,297,610 Hours
THI 2-0512M
3,368,421 Hours
THI 2-0513M
3,368,421 Hours
THI 2-0522M
3,194,888 Hours
THI 2-0523M
3,202,562 Hours
THI 2-1211M
3,395,586 Hours
THI 2-1212M
3,488,879 Hours
THI 2-1213M
3,488,879 Hours
THI 2-1222M
3,399,915 Hours
THI 2-1223M
3,399,915 Hours
THI 2-2411M
3,344,482 Hours
THI 2-2412M
3,499,562 Hours
THI 2-2413M
3,499,562 Hours
THI 2-2422M
3,154,574 Hours
THI 2-2423M
3,154,574 Hours