IC P50L-050S-RR1-DA 型号P50L-050S-RR1-DA 厂商 3M 分类连接器 应用板对板与夹层连接器 ROHS✓ 符合ROHS 产品描述 Board to Board & Mezzanine Connectors 50P LO-PRO SCKT RA STACKING