MCP6241T-E/MC MCP6241T-E/MS MCP6241T-E/OT MCP6241T-E/OT 运放IC MCP6241T-E/OTVAO MCP6241T-E/SN MCP6241T-I/SN MCP6241U-E/OT MCP6241UT MCP6241UT-E/LT