2023-06-10 02:11 AM
2023-06-11 11:23 PM
Welcome, @Andrea Mazza, to the community!
Unfortunately, you have interpreted the letter "I" as digit "1", the correct ordering code was STAC2942B-I2W.
Anyway, this particular RF transistor was discontinued a long time ago, but was also not generally available, as it was a custom device that only the customer had documentation on.
Regards
/Peter