1N4371A

Single Zener Diodes Overview

The onsemi 1N4371A is a single silicon Zener diode housed in a DO-35 glass axial-leaded package. It provides a nominal Zener voltage of 2.7 V with a tolerance of ±5%. The device operates at a test current of 20 mA and supports a maximum Zener current of 135 mA. It features a power dissipation rating of 500 mW, a dynamic impedance of 30 Ω, and a maximum reverse leakage current of 75 µA at 1 V. The component functions within an operating temperature range of -65°C to +200°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using a single Zener junction
• Constructed with a glass axial-leaded DO-35 case for thermal stability
• Capable of operation across a wide temperature range up to 200°C

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection stages
• Biasing networks for semiconductor devices

Single Zener Diodes Procurement Notes

Verify the manufacturer origin as the part number was originally established by Fairchild Semiconductor before its acquisition by onsemi. Confirm that the specific ordering suffix matches the required RoHS compliance status and lead finish specifications. Ensure the procurement channel is authorized to guarantee traceability and prevent counterfeit components.

Single Zener Diodes Selection Notes

Select this component when a low-voltage reference near 2.7 V is required in a compact through-hole form factor. The 500 mW power rating suits applications where moderate current handling is necessary without requiring larger packages. Verify that the 30 Ω dynamic impedance meets the noise and regulation requirements of the target circuit design.

Single Zener Diodes Part Context

This device belongs to the 1N4370A through 1N4372A series of 0.5 W Zener Voltage Regulators. These parts are designed for general-purpose voltage regulation tasks. The series utilizes standard JEDEC DO-35 encapsulation, ensuring compatibility with existing printed circuit board layouts designed for small-signal diodes.

Single Zener Diodes Replacement Considerations

The Microchip Technology 1N4371AE3 serves as a verified substitute. Both parts share identical electrical characteristics, including the 2.7 V Zener voltage, 500 mW power dissipation, and DO-35 package style.