Thread: SG-230 problem
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Old April 25th 08, 11:09 PM posted to rec.radio.amateur.antenna
Andy[_5_] Andy[_5_] is offline
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Default SG-230 problem

In my SG-230, it says 5DL on the top of diode. Don't know if that is an ID:
code of sorts.

73 Andy


"Dave Platt" wrote in message
...
All it says about the diodes is that they are either D5, D7, D9 etc. It
doesn't say what they are.


Yes, it doesn't say but if it were me, I would replace the
blown diodes with 1N4148's (assuming discrete diodes will
fit in the SMD pad space).


I wonder whether these diodes might not be MMBD4148 or some such?
These are 1N4148-type fast switching diodes in an 3-pin SOT323
surface-mount package.

Mouser and Digi-Key carry several variants of these. The MCC versions
are $.10-$.15 each in onesies and are good to 75V, 150 mA. The Diodes
INc. versions are around half a buck each in onesies, and are good to
75V, 200 mW. I'm not sure whether you'd want apples, or oranges :-)

--
Dave Platt AE6EO
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