1N4370A

Single Zener Diodes Overview

The onsemi 1N4370A is a silicon Zener diode housed in a DO-35 glass axial leaded package. It provides a nominal Zener voltage of 2.4V with a tolerance of ±5%. The device operates at a test current of 20mA and features a maximum dynamic impedance of 30 Ohms. It supports a maximum power dissipation of 500mW and withstands reverse leakage currents up to 100µA at 1V. The component functions within an operating temperature range of -65°C to +200°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation via the Zener breakdown effect for reference applications
• Features a hermetically sealed glass case construction for environmental protection
• Supports high thermal stability with an extended operating temperature range

Single Zener Diodes Applications

• Voltage reference circuits requiring precise low-voltage regulation
• Overvoltage protection stages in signal conditioning paths
• Clamping applications for transient suppression in electronic systems

Single Zener Diodes Procurement Notes

Verify the manufacturer origin, as this part was originally produced by Fairchild Semiconductor before its acquisition by onsemi. Confirm that the specific batch meets required quality standards and traceability requirements. Ensure the component matches the specified DO-35 package dimensions and marking codes to avoid counterfeit risks during integration.

Single Zener Diodes Selection Notes

Select this component when a low nominal voltage of 2.4V is required for circuit regulation. Consider the 30 Ohm dynamic impedance for noise sensitivity in the application. Evaluate the 500mW power dissipation limit against expected load conditions. Verify compatibility with the DO-35 through-hole mounting style for the target PCB design.

Single Zener Diodes Part Context

This device belongs to the 1N4370A-1N4372A series of low-voltage Zener diodes. These components are designed for general-purpose voltage regulation tasks. They share similar electrical characteristics with the 1N746A-1N759A series but differ in their specific breakdown voltage ratings. The series utilizes standard axial leaded packaging for reliable board mounting.

Single Zener Diodes Replacement Considerations

Compatible substitutes include the Microchip 1N4370A-1 and the onsemi 1N4370A_T50R. Verify that replacement parts maintain the same 2.4V nominal voltage and DO-35 package form factor.