Datasheet

Application Note
Created by Traco Electronic AG Arp.
www.tracopower.com
Date: September 14
th
, 2012 / Rev.: 1.1 /
Page 30 / 30
3W SINGLE & DUAL
OUTPUT
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 flexibility, 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, 12Vin, 24Vin, 48Vin with maximum rating of 2000mA, 1000mA,
500mA, 250mA. 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 THB 3 series of DC/DC converters has been calculated using MIL-HDBK 217F
Operating Temperature 25°C, Ground Benign.
Model
MTBF
Unit
THB 3-0511
1,077,238
Hours
THB 3-0512
1,167,270
Hours
THB 3-0515
1,164,415
Hours
THB 3-0522
1,158,078
Hours
THB 3-0523
1,166,045
Hours
THB 3-1211
1,069,519
Hours
THB 3-1212
1,115,325
Hours
THB 3-1215
1,108,033
Hours
THB 3-1222
1,102,293
Hours
THB 3-1223
1,096,491
Hours
THB 3-2411
1,035,518
Hours
THB 3-2412
1,091,941
Hours
THB 3-2415
1,077,818
Hours
THB 3-2422
1,072,386
Hours
THB 3-2423
1,066,212
Hours
THB 3-4811
1,037,237
Hours
THB 3-4812
1,085,423
Hours
THB 3-4815
1,070,435
Hours
THB 3-4822
1,066,212
Hours
THB 3-4823
1,066,212
Hours