Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
02/08/06 13:12
Read: times


 		 #109499 - Depends on ferrite material
Responding to: ???'s previous message
Farshid said:
But what about the current capability versus the package size ?
I think bigger packages could handle more current ?

Of course. But this doesn't really matter. With the proper ferrite material even 0603 package can withstand high currents.

Also, important is not the impedance at a certain frequency, but too have as high as possible dampening in a whole range of frequencies! And when you work with fast digital chips, then you need high dampening even at 1GHz, because the harmonics of square pulses and Vcc glitches are that high.

By the way, the '742792651' in 0603 package I use is a high current type and can withstand DC currents of up to 1A! So, when using this ferrite bead for currents of only up to 50mA, I do not have the least saturation effects.

Have a look by yourself:

http://www.we-online.de/we_web/em...id=4&lan=1

Kai

List of 34 messages in thread
TopicAuthorDate
Quick 'Ferrite Bead' Question            01/01/70 00:00      
   quick answer            01/01/70 00:00      
      I'll use 500s            01/01/70 00:00      
         Picture?            01/01/70 00:00      
            They are SMD !            01/01/70 00:00      
               0805 better than 1206            01/01/70 00:00      
                  Most of the stock here are            01/01/70 00:00      
                     Depends on ferrite material            01/01/70 00:00      
                        Ok , I'll do my best to buy a documented            01/01/70 00:00      
                           off topic, but alas            01/01/70 00:00      
                              deux chevaux            01/01/70 00:00      
                                 yes, but different horses            01/01/70 00:00      
                           Trabant, a funny and sad object            01/01/70 00:00      
                              what is sad about that            01/01/70 00:00      
                                 Because...            01/01/70 00:00      
                                    and when it nis modified            01/01/70 00:00      
                                       Misleading the world...            01/01/70 00:00      
                                          Could it be true...            01/01/70 00:00      
                                             Don't forget a large part ...            01/01/70 00:00      
                                                English, not British...            01/01/70 00:00      
                                             anything can be true, of course, but            01/01/70 00:00      
                              Re : How much it weight ?            01/01/70 00:00      
                                 Probably light enough...            01/01/70 00:00      
                        Back to Topic            01/01/70 00:00      
                           nope            01/01/70 00:00      
                              Are you sure?            01/01/70 00:00      
                                 of course not            01/01/70 00:00      
                                    You are right            01/01/70 00:00      
                                       Unilke ,I think you're pretty moderate            01/01/70 00:00      
                                          Thanks            01/01/70 00:00      
                                          sometimes it is and sometimes it is not            01/01/70 00:00      
                                             lessons            01/01/70 00:00      
                                                do not worry            01/01/70 00:00      
                                             Still no harm            01/01/70 00:00      

Back to Subject List