The CMPZ5239B TR is a zener diode manufactured by Central Semiconductor Corp. It is packaged in a reel and has SMD (SMT) mounting. The diode has a tolerance of ±5%, a maximum forward voltage of 900mV at 10mA, and a reverse leakage current of 3μA at 7V. The nominal zener voltage is 9.1V, and the maximum impedance is 10 Ohm. It is a discrete semiconductor product with active status and can operate in a temperature range of -65°C to 150°C. The diode is packed in an SOT-23 case and can dissipate a maximum power of 350mW. The supply and demand status is balanced.