Multilayer Chip Balun - WE-BAL Series. Wurth WE-BAL Multilayer Chip Low loss SMD Balun with balanced impedance of 50 to 200 and a power capacity of 2W Max. Applications include: RF ; Wireless communication systems (e.g. Home RF, DECT, WLAN, Bluetooth, ZigBee). Operating temperature: –40 °C to +85 °C