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 wit h a forwad voltage around .6 and a reverse voltage around 1.7. Any help wo uld be appreciated. Thank You!
-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 woul d be appreciated. Thank You!
The diode appears to be connected to the +5v and GND with the center connec ted 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.
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!
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):
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!
BAS116 is a low leakage diode mfrd by Philips and Siemens, in sod323/sc76 two-pin smd packages with the V designator. Marked also as JV, K50, K54 when placed in SOT23 3-pin package.
RL
The OP reported measuring 0.6V on one of the junctions, that probably suggests its not a Shottky-barrier.
SB diodes tend to have higher junction capacitance, so thought should be given to whether that could have an adverse effect. Reverse leakage can also be significant.
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