C4557
C4557 is 2SC4557 manufactured by Allegro MicroSystems.
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2SC4557
Application : Switching Regulator and General Purpose
(Ta=25°C) 2SC4557 100max 100max 550min 10 to 28 0.5max 1.2max 6typ 105typ V V
Silicon NPN Triple Diffused Planar Transistor (High Voltage Switchihg Transistor)...