Electronic Components Datasheet Search |
|
IRG4PG40FD Datasheet(PDF) 5 Page - International Rectifier |
|
IRG4PG40FD Datasheet(HTML) 5 Page - International Rectifier |
5 / 35 page Fit Rate / Equivalent Device Hours λ = Proportion allowed system failures X 1 X 10 9 = FITS Time period No. of devices In the case of the example, λ = 0.01 Failures X 1 = 10 9 = 14 FITS 720 Hours 1000 Devices or 14 FITs or 14 failures per 10 9 devices hours. Traditionally, reliability results have been presented in terms of Mean-Time-To-Failure or Median-Time-To-Failure. While these results have their value, they do not necessarily tell the designer what he most needs to know. For example, the Median- Time-To-Failure tells the engineer how long it will take for half a particular lot of devices to fail. Clearly no designer wishes to have a 50% failure rate within a reasonable equipment lifetime. Of greater interest, therefore, is the time to failure of a much smaller percentage of devices say 1% or 0.1%. For example, in a given application one failure per hundred units over five years is an acceptable failure rate for the equipment, the designer knows that time to accumulate 1% failure of that components per unit, then no more than 0.1% of the components may fail in five years. Therefore, the IGBT / CoPack reliability or operating-life data is presented in terms of the time it will take to produce a prescribed number of failures under given operating conditions. To obtain a perspective of failure rate from an example, let us assume that an electronic system contains 1,000 semiconductor devices, and that it can tolerate 1% system failures per month. The equation for the device failure is: IGBT / CoPack Quarterly Reliability Report Page 5 of 35 |
Similar Part No. - IRG4PG40FD |
|
Similar Description - IRG4PG40FD |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |