The 1N5334B is a single zener diode from NTE Electronics, Inc. It has a voltage rating of 3.6V and a power rating of 5W. The diode is packaged in a T-18 axial package, making it suitable for through-hole mounting. It has a tolerance of ±5% and an impedance of 2.5 Ohms. The diode operates in a wide temperature range from -65°C to 200°C, making it suitable for various applications in harsh environments. With its low forward voltage and low reverse leakage current, the 1N5334B provides reliable and efficient voltage regulation and protection in electronic circuits.