Electronics > Repair

ultrasonic cleaner MH-060S, replacing transistors [fixed > broken again]

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wraper:
Using metal can transistors in 2024 unless replacing original metal can part is quite dumb for multiple reasons.

htm:
@wraper
Haha, ok.

wraper:
BTW PCB footprint also allows using TO-220 package which gives way more substitute choices. Somewhat higher thermal resistance does not matter at all as heatsinks/heat dissipation are not anywhere large enough for it to play a significant role.

htm:
@wraper
i've searched for Ice>=15A , Vce >=400 , but most casings i see are TO3 and only few are TO3P, on both TME and Reichelt. i don't find any TO-220?

Regarding both suppliers of the BUV48A for the plastic versions, would both parts be same quality? (i added links in previous message) or is ony brand preferred?

wraper:
You're right. All 15A stuff in TO-220 seems to be discontinued. However you don't necessarily need 15A max either. Lower current rating would be fine as long as saturation voltage is low enough, gain at high current high enough and it's not too slow as what you should care the most about is heating not more than original.

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