1N5374BG

Overview

The onsemi 1N5374BG is a single silicon-oxide passivated junction Zener diode rated for 5 W steady-state power dissipation. It provides a nominal reverse Zener voltage of 75 V with a ±5% tolerance, tested at 20 mA. The device features a maximum dynamic impedance of 45 Ω and a maximum reverse leakage current of 1.6 µA at the breakdown voltage. It operates within a temperature range of -65 °C to +200 °C and utilizes an axial lead Surmetic 40 (DO-15) package.

Feature Summary

• Utilizes silicon-oxide passivated junctions for superior operating characteristics and environmental protection.
• Provides high surge current capability up to 180 W for 8.3 ms pulses.
• Offers robust electrostatic discharge (ESD) protection rated at Class 3 (>16 kV) per the Human Body Model.

Applications

• Voltage regulation in electronic circuits requiring stable reference voltages.
• Protection against transient overvoltage events and electrical surges.
• General-purpose clipping and clamping applications in industrial equipment.

Procurement Notes

Verify that the ordering suffix 'G' corresponds to the Pb-Free package configuration as specified by the manufacturer. Confirm compliance with RoHS directives and REACH SVHC requirements before integration into final assemblies. Ensure the procurement documentation matches the exact JEDEC type number 1N5374B to guarantee correct electrical tolerances and performance parameters.

Selection Notes

Select this component when a precise 75 V regulation point is required with tight manufacturing tolerances. The 5 W power rating supports continuous operation at elevated temperatures provided adequate heat sinking is applied. Verify that the application environment does not exceed the maximum junction-to-lead thermal resistance limits defined in the datasheet.

Part Context

This part belongs to the 1N53 Series of 5 Watt Zener Voltage Regulators manufactured by onsemi. The series covers a wide voltage range from 3.3 V to 200 V, utilizing transfer-molded plastic packages designed for durability. The 1N5374BG specifically addresses the 75 V segment of this lineup, offering standardized axial lead mounting for through-hole PCB implementations.

Replacement Considerations

Cross-reference with other manufacturers producing the standard 1N5374B specification. Ensure substitute components match the 75 V nominal voltage, 5 W power dissipation, and DO-15 axial lead package dimensions. Verify that alternative sources provide equivalent ±5% tolerance and similar impedance characteristics.