MCP42010T-E/SL MCP42010T-E/ST MCP42010T-I/SL MCP42010T-I/ST MCP42010T-I/ST- MCP42010T-I/ST 数字电位器 MCP42010T-I/ST^ MCP42010T-I/ST` MCP42010T-I/ST= MCP4201-I/SL