1N4372A_T50A

Single Zener Diodes Overview

The onsemi 1N4372A_T50A is a silicon unidirectional Zener diode housed in a DO-35 axial glass package. It provides a nominal Zener voltage of 3.15V with a tolerance of ±5%. The device operates at a test current of 20mA and features a maximum dynamic impedance of 29 Ohms. It supports a power dissipation of 500mW, with derating above 75°C. Operating and storage temperatures range from -65°C to +200°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation via the Zener effect for circuit protection and reference applications
• Utilizes a hermetically sealed glass DO-35 axial package for robust environmental resistance
• Features low leakage current characteristics to maintain efficiency under reverse bias conditions

Single Zener Diodes Applications

• Voltage regulation in electronic circuits
• Overvoltage protection for sensitive components
• Reference voltage generation in measurement systems

Single Zener Diodes Procurement Notes

Verify authenticity by checking for Fairchild Semiconductor logos and specific top markings (37 2A) against official datasheet guidelines. Purchase only from authorized distributors to ensure traceability and avoid counterfeit parts. Confirm RoHS compliance status as specified in the product documentation before integration into final assemblies.

Single Zener Diodes Selection Notes

Select this component when a precise 3.15V reference is required within a tight ±5% tolerance band. Ensure the application environment stays within the -65°C to +200°C operating range. Verify that the 500mW power dissipation rating aligns with the thermal management capabilities of the target PCB layout.

Single Zener Diodes Part Context

This part belongs to the 1N4370A through 1N4372A series, which are standard Zener diodes designed for general-purpose voltage regulation. These devices share similar electrical characteristics and packaging standards, differing primarily in their specific nominal breakdown voltages defined by the JEDEC numbering system.

Single Zener Diodes Replacement Considerations

Compatible substitutes include the 1N748A, which shares identical electrical specifications and physical dimensions. Other equivalents within the 1N746A through 1N759A family may be used if voltage ratings match the specific design requirements.