[elecena] BC550B NPN TRANZYSTOR (437B) - zmiany ceny Tranzystor: bipolarny, NPN; 50V; 100mA; 500mW; TO92 BC550B NPN TRANZYSTOR (437B) - 0.25 PLN https://elecena.pl/product/5408988/bc550b-npn-tranzystor-437b 2015-12-20 BC550B NPN TRANZYSTOR (437B) - 0.70 PLN https://elecena.pl/product/5408988/bc550b-npn-tranzystor-437b 2023-01-21