MCP6H04T-E/ST MCP6H04T-E/STVAO MCP6H71-E/SN MCP6H71-E/SN 运放IC MCP6H71T-E/MNY MCP6H71T-E/SN MCP6H72-E/SN MCP6H72T-E/MNY MCP6H72T-E/SN MCP6H74-E/SL