MCP6042T-I/SN TEL:88834448 MCP6042T-I/SN 电源IC MCP6043-E/MS MCP6043-E/P MCP6043-E/SN MCP6043-I/MS MCP6043-I/P MCP6043-I/SN MCP6043-I/SN 运放IC MCP6043T-E/CH