[elecena] 1N2821B - zmiany ceny Dioda: Zenera; 50W; 25V; 10uA; Ufmax: 1,5V 1N2821B - 370.94 PLN https://elecena.pl/product/30332379/1n2821b 2026-05-30 1N2821B - 382.84 PLN https://elecena.pl/product/30332379/1n2821b 2026-07-14