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Need advice (maybe OT)

Former Member

LS,

 

On a design I use four 1N4148 diodes to rectifiers a 20 KHz square signal.

Now I am thinking of replacing it by a rectifier bridge.

 

Does anyone has a suggestion what device to use?

 

Harry

 

 

  • On 12/14/2011 11:08 AM, Harry H. Arends wrote:

    LS,

     

    On a design I use four 1N4148 diodes to rectifiers a 20 KHz square signal.

    Now I am thinking of replacing it by a rectifier bridge.

     

    Does anyone has a suggestion what device to use?

     

    Harry

     

    It depends on the voltage and current of the circuit.

    Just take one of the easy to look up parts vendors by specs and hunt

    some down. digkey has a easy to use search for parts interface.

    Paul R.

     

  • in reply to Former Member

    Paul Romanyszyn schrieb:

     

    >> On a design I use four 1N4148 diodes to rectifiers a 20 KHz square signal.

    >> Now I am thinking of replacing it by a rectifier bridge.

    >>

    >> Does anyone has a suggestion what device to use?

    >>

    It depends on the voltage and current of the circuit.

    Just take one of the easy to look up parts vendors by specs and hunt

    some down. digkey has a easy to use search for parts interface.

     

    But take care: most rectifier bridges are really slooooow and suitable

    for line frequencies only. Maybe it's better keeping the 4148...

     

    What's the reason for your replacement intention?

     

    Tilmann

     

  • Harry H. Arends wrote:

    LS,

     

    On a design I use four 1N4148 diodes to rectifiers a 20 KHz square

    signal. Now I am thinking of replacing it by a rectifier bridge.

     

    Does anyone has a suggestion what device to use?

     

    Harry

     

    You may entertain using diode pairs in two sot packages.

     

    Warren

     

     

    --

    Viewed / responded via the newsgroup at

    news.cadsoft.de

     

     

     

  • in reply to Former Member

    I need more space on the board.

    Maybe I could use a SMD version.

     

    "Tilmann Reh"  schreef in bericht news:jcaugm$qev$1@cheetah.cadsoft.de...

     

    Paul Romanyszyn schrieb:

     

    >> On a design I use four 1N4148 diodes to rectifiers a 20 KHz square

    >> signal.

    >> Now I am thinking of replacing it by a rectifier bridge.

    >>

    >> Does anyone has a suggestion what device to use?

    >>

    It depends on the voltage and current of the circuit.

    Just take one of the easy to look up parts vendors by specs and hunt

    some down. digkey has a easy to use search for parts interface.

     

    But take care: most rectifier bridges are really slooooow and suitable

    for line frequencies only. Maybe it's better keeping the 4148...

     

    What's the reason for your replacement intention?

     

    Tilmann

     

     

  • in reply to Former Member

    Harry H. Arends schrieb:

     

    I need more space on the board.

    Maybe I could use a SMD version.

     

    --> TS4148 RYTS4148 RY by Taiwan Semi, in 0603 or 0805 chip size.

     

    Eventually, dual diodes are also possible in your application: BAV99 or

    the like, two (signal) diodes in one SOT23. That's what Warren suggested.

     

    Tilmann