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无源晶振 KBD0491A2030 HC-49S-SMD 4.9152MHz ±30ppm 20pF 原装
KBD0491A2030 -[原装无源晶振HC-49S-SMD
KBD0491A2030 无源晶振 4.9152MHz ±30ppm 20pF HC-49S-SMD