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爱普生51.165MHz有源晶振5032四脚贴片晶振 SG8018CB OE引脚
51.165R【FOOT SWITCHFS1SU2SUSTDCLRGD 2NO/】
硬质钨钢球合金球51.16/51.165/51.17/51.175/51.18/51.185mm钢珠