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An exact replacement probably isn't critical in this application, asOn Tuesday, January 15, 2013 9:25:18 PM UTC-6, Brett Farnam wrote:
Can some one help to identify a SMD diode please? It is an SOT-323 or UMD-3 and I suspect that Rohm or Toshiba once made it. It is only marked with a single "V". A check with a DMM shows that it might be a series diode with a forwad voltage around .6 and a reverse voltage around 1.7. Any help would be appreciated. Thank You!
The diode appears to be connected to the +5v and GND with the center connected to the signal source. I think this is some type of protection diode as all of the inputs on this device have this configuration. If any one can dig through some of thier older ROHM SMD datasheets and identify this diode it would help.
The diode appears to be connected to the +5v and GND with the center connected to the signal source. I think this is some type of protection diode as all of the inputs on this device have this configuration. If any one can dig through some of thier older ROHM SMD datasheets and identify this diode it would help.Can some one help to identify a SMD diode please? It is an SOT-323 or UMD-3 and I suspect that Rohm or Toshiba once made it. It is only marked with a single "V". A check with a DMM shows that it might be a series diode with a forwad voltage around .6 and a reverse voltage around 1.7. Any help would be appreciated. Thank You!
Can some one help to identify a SMD diode please? It is an SOT-323 or UMD-3 and I suspect that Rohm or Toshiba once made it. It is only marked with a single "V". A check with a DMM shows that it might be a series diode with a forwad voltage around .6 and a reverse voltage around 1.7. Any help would be appreciated. Thank You!
The OP reported measuring 0.6V on one of the junctions, that probablyOn Wed, 16 Jan 2013 11:45:19 -0800 (PST), Brett Farnam
brett.farnam@gmail.com> wrote:
On Tuesday, January 15, 2013 9:25:18 PM UTC-6, Brett Farnam wrote:
Can some one help to identify a SMD diode please? It is an SOT-323 or
UMD-3 and I suspect that Rohm or Toshiba once made it. It is only marked
with a single "V". A check with a DMM shows that it might be a series
diode with a forwad voltage around .6 and a reverse voltage around 1.7.
Any help would be appreciated. Thank You!
The diode appears to be connected to the +5v and GND with the center
connected to the signal source. I think this is some type of protection
diode as all of the inputs on this device have this configuration. If any
one can dig through some of thier older ROHM SMD datasheets and identify
this diode it would help.
An exact replacement probably isn't critical in this application, as
long as the connections and pads match the original. Try a BAT54S, for
example (one of many):
http://www.digikey.com/product-detail/en/BAT54SWT1G/BAT54SWT1GFSCT-ND/3504329