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原装 O970502712MEDA4SI (YSO690PR 27.12MHZ 3.3V 20PPM)
原装 O970502712MADA4SI (YSO690PR 27.12MHZ 1.8V 20PPM)
O970502712MEDA4SI/SMD7050-4P预编程振荡器
O970502712MEDA4SI-原装预编程振荡器SMD7050-4P
O970502712MEDA4SI 预编程振荡器 YSO690PR 27.12MHZ 3.3V 20PPM
