1N5373BG

The 1N5373BG is a 68V Zener diode from On Semiconductor, rated for 5W power dissipation in an axial lead through-hole package. It is part of the 1N53 series of 5 Watt Surmetic 40 Zener Voltage Regulators.\n\nKey electrical specifications include a Zener voltage of 68V with ±5% tolerance, forward voltage of 1.2V at 1A, reverse leakage current of 500nA at 51.7V, and Zener impedance of 44Ω. The device features an ESD rating of Class 3 (>16kV) per Human Body Model and surge power rating of 180W at 8.3ms.\n\nThermal characteristics include a junction-to-lead thermal resistance of 25°C/W, maximum junction temperature of 150°C under DC conditions, and an operating temperature range of -65°C to 200°C. The device is packaged in the T-18, axial lead case and is solderable at 260°C for 10 seconds.\n\nCompliance information: The device is indicated as RoHS3 compliant and lead-free (Pb-Free) based on the G suffix. Moisture sensitivity level is MSL 1 (unlimited). Note that some compliance data remains unverified and should be confirmed with the manufacturer.