[elecena] ST485BDR - zmiany ceny Układ scalony transceiver RS422 / RS485 2,5Mbps SO8 ST485BDR - 3.55 PLN https://elecena.pl/product/5040932/st485bdr 2015-02-28 ST485BDR - 2.95 PLN https://elecena.pl/product/5040932/st485bdr 2015-06-16 ST485BDR - 3.20 PLN https://elecena.pl/product/5040932/st485bdr 2016-03-15 ST485BDR - 3.55 PLN https://elecena.pl/product/5040932/st485bdr 2017-06-29 ST485BDR - 3.95 PLN https://elecena.pl/product/5040932/st485bdr 2018-05-03 ST485BDR - 4.85 PLN https://elecena.pl/product/5040932/st485bdr 2022-03-10