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EEVblog => EEVblog Specific => Topic started by: EEVblog on September 17, 2025, 12:43:18 am

Title: EEVblog 1708 - What's This SMD Part
Post by: EEVblog on September 17, 2025, 12:43:18 am

Another viewer question, can we identify this SMD component?

https://www.youtube.com/watch?v=I1qnZa8whPc (https://www.youtube.com/watch?v=I1qnZa8whPc)

Title: Re: EEVblog 1708 - What's This SMD Part
Post by: Kleinstein on September 17, 2025, 06:11:14 pm

The BF459 was a relatively common high voltage BJT for Tube TV video amplifiers.  There may also be a version in a SOT233, though a bit small for the power.