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As I mentioned earlier, while the data sheet doesn't seem to mention the marking, the web site does:
I am sure there would be plenty of alternatives if you just bang the basic requirements into a selection guide such as at Farnell. I did a quick look and came up with MMBTA05 BCV71 and BCV47 as the closest match but opening the search to include higher current and higher voltage gives BSR14 FMMT491 MMBT8099LT1G MMBTA06LT1G PBSS4160T PMBTA06 ZXTN2038F as other options. You might want to check hfe though as the higher current devices may be a bit lower.
Keith.
I am sure there would be plenty of alternatives if you just bang the basic requirements into a selection guide such as at Farnell. I did a quick look and came up with MMBTA05 BCV71 and BCV47 as the closest match but opening the search to include higher current and higher voltage gives BSR14 FMMT491 MMBT8099LT1G MMBTA06LT1G PBSS4160T PMBTA06 ZXTN2038F as other options. You might want to check hfe though as the higher current devices may be a bit lower.
Keith.