1N4370A

Single Zener Diodes Overview

The Fairchild Semiconductor 1N4370A is a single silicon Zener diode housed in the DO-35 axial glass package. It provides a nominal Zener voltage of 2.4V with a tolerance of ±5%. The device supports a maximum power dissipation of 500mW and features a maximum dynamic impedance of 30 Ohms. It operates within a temperature range of -65°C to +200°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation at a nominal 2.4V level
• Utilizes a robust DO-35 glass axial package for through-hole mounting
• Capable of handling up to 500mW power dissipation

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Clipping and clamping applications

Single Zener Diodes Procurement Notes

Verify the manufacturer origin, as this part number is historically associated with multiple vendors including Microchip Technology. Confirm that the specific batch matches the required DO-35 package and 5% tolerance specifications. Ensure the component meets the necessary environmental standards for the intended operating temperature range before integration into the design.

Single Zener Diodes Selection Notes

Select this component when a low-voltage reference near 2.4V is required in a standard axial form factor. Consider the 30 Ohm dynamic impedance for regulation precision needs. Evaluate the thermal derating requirements if ambient temperatures exceed 75°C to ensure the 500mW limit is not exceeded during operation.

Single Zener Diodes Part Context

This component belongs to the 1N4370A-1N4372A series of Zener diodes. These parts are often grouped with the 1N746A-1N759A series in technical documentation. They serve as fundamental discrete semiconductor devices for basic voltage regulation tasks in electronic circuits.

Single Zener Diodes Replacement Considerations

Equivalent part numbers include 1N4370A-1 and 1N746A. Verify pinout compatibility and electrical parameter alignment, specifically the 2.4V Zener voltage and 500mW power rating, before substituting.