AP3990S-HF mosfet equivalent, n-channel enhancement mode power mosfet.
The TO-263 package is widely preferred for commercial-industrial surface mount applications and suited for low voltage .
AP3990 series are specially designed as main switching devices for universal 90~265VAC off-line AC/DC converter applications. The TO-263 package is widely preferred for commercial-industrial surface mount applications and suited for low voltage appli.
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