1N4372A_T50R

Single Zener Diodes Overview

The onsemi 1N4372A_T50R is a silicon unidirectional Zener diode housed in a DO-35 glass axial-leaded package. It provides a nominal Zener voltage of 3.0 V with a standard tolerance of ±5%. The device operates within a junction temperature range of -65°C to +200°C and supports a maximum power dissipation of 500 mW at a lead temperature of 75°C or less, with derating required above this threshold.

Single Zener Diodes Feature Summary

• Features a hermetically sealed glass DO-35 case for environmental protection
• Includes an internal metallurgical bond option for enhanced reliability
• Provides stable voltage regulation across a wide operating temperature range

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection networks
• Clamping applications in electronic systems

Single Zener Diodes Procurement Notes

Verify the component authenticity by checking the top marking against the datasheet specifications. Ensure the ordering suffix matches the required packaging configuration. Confirm that the manufacturer and date codes align with current production standards to avoid counterfeit parts.

Single Zener Diodes Selection Notes

Select this component when a precise 3V reference is needed in a through-hole environment. Consider the thermal derating requirements if ambient temperatures exceed 75°C. Evaluate the reverse leakage current characteristics for low-power circuit designs.

Single Zener Diodes Part Context

This part belongs to the 1N4370A through 1N4372A series of 0.5 W Zener voltage regulators. These devices are JEDEC registered and offer tight voltage tolerances suitable for precision applications. The series is available in various qualification levels including commercial and military grades.

Single Zener Diodes Replacement Considerations

Equivalent parts include the Microsemi 1N4372A and MACOM 1N4372. Verify pinout compatibility and ensure the replacement meets the same voltage and power dissipation ratings.