• Zamiennik cewki

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Zamiennik cewki

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#1 Zamiennik cewki

by fifi88 • 24 October 2018, 15:01
Witam,

czy cewkę BLM15BD121SN1D mogę zastąpić cewką BLM18PG121SN1

??

Re: Zamiennik cewki

by Google Adsense [BOT] • 24 October 2018, 15:01

#3 Re: Zamiennik cewki

by matic • 24 October 2018, 19:24
fifi88 wrote:czy cewkę BLM15BD121SN1D mogę zastąpić cewką BLM18PG121SN1
The answer is NO.
There is a big difference between the rated current of these ferrite beads.
Rated current of the BLM18PG121SN1 is 2A, while BLM15BD121SN1D only 300mA.

#4 Re: Zamiennik cewki

by fifi88 • 25 October 2018, 09:31
Dziękuję za odpowiedź.
A czy BLM18AG121SN1D może być prąd znamionowy ma 500mA, bo niestety na żadnej płycie nie mogę znaleźć GLM15DV121SN1D

#6 Re: Zamiennik cewki

by matic • 25 October 2018, 13:22
Machine wrote:If the inductance as well as functioning as a filter is used as a safety (fuse) you must use an inductance with the same current.
I do not agree with this.
Here is talking about the ferrite beads, not the classic coils (inductors).

At the ferrite beads the most important parameters are the following:
- Impedance (AC resistance) usually specified at frequency 100MHz
- Rated current (maximum allowable current through the ferrite bead)

There is no induction value.

The purpose of ferrite bead is to filter the high frequency interference usually in DC power supply rails. The ferrite bead is not a fuse, so the rated current of the replacement one could be greater.

Re: Zamiennik cewki

by Google Adsense [BOT] • 25 October 2018, 13:22
 This topic is marked as ARCHIVAL. Please only reply if your message contains the solution (Terms and Conditions p. 12.1).
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