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直插无源晶振 21.4772M 21.47727MHZ HC-49S 晶振 10只3元
21.4772MHZ 49S 石英晶振 直插无源21.47727MHZ 21.47727M
呻对想昽嫉猅帮愋巗圚
直插晶振HC-49S 27.12M 28.322M 21.4772M 30M 32M 40M 48MHZ 48M
无源直插晶振21.4772M 18.000M 20M 26.601712M 8.192MHZ
直插无源晶振 HC-49S 27.12M 28.322M 21.4772M 30M 40M 48M 49S
