[hpsdr] [OZY] Schematic Update for 12 May 2006

[Philip Covington]

On 5/12/06, Ahti Aintila <oh2rz.sdr at gmail.com> wrote:
> Phil,
>
> Your selection of Littlefuse PGB Series ESD suppressor is good against
> short transients. If you want a RoHS compliant component, you may take
> PGB102ST23WR. Whichever, but a better place would be next to the
> connector.
> On the other hand, this type of component is good only for short ESD
> transients, they clamp only to 150V (plus or minus). They cannot
> protect against longer lasting overvoltage surges of DC power.
>
> My recommendation is Bourns CDSOT23-SR724. It protects 4 lines, it is
> USB 2.0 compatible (Cj 3 pF), RoHS compliant and can handle both ESD
> transients and overvoltage surges. See :
> <http://www.bourns.com/pdfs/CDSOT23-SR724.pdf>. Best place for this
> component is between the common mode coil and the USB chip.
>
> 73, Ahti OH2RZ
>

Hi Ahti,

Can you recommend a supplier for this?  I have had no luck finding
this part CDSOT23-SR724

73 de Phil N8VB

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