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What is the component in SOT23-3 with marking F1 and lying 8 or infinity mark, please?

This is a part of Semikron inverter board. Pictures:
SOT23-3-1F8 SOT23-3-1F8-2nd

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2 Answers 2

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Looks like it is a SOT23.

The point mark under the "1F" and the one digit orthogonal lot code is typical from ONSEMI. So it might be BC847BLT1G / BC847BLT3G.

https://www.onsemi.com/download/data-sheet/pdf/bc846alt1-d.pdf

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It is probably a BC847B NPN, 45 V, 100 mA NPN general-purpose transistor.

Made by various manufacturers including NXP, most using a 1F main marking, with various lot codes (the 8).

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