1N4989CUS

Single Zener Diodes Overview

The Microchip Technology 1N4989CUS is a surface-mount Zener diode designed for voltage regulation applications. It features a nominal Zener voltage of 200 V with a tolerance of ±5%. The device has a maximum power dissipation of 5 W and operates within a temperature range of -65°C to +175°C. Key electrical parameters include a reverse leakage current of 2 µA at 153.8 V, a forward voltage of 1.5 V at 1 A, and a Zener impedance of 100 Ohms. It utilizes the D-5B package.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation in high-voltage circuits
• Operates reliably across an extended industrial temperature range
• Features low reverse leakage current for efficient performance

Single Zener Diodes Applications

• High-voltage power supply regulation
• Overvoltage protection circuits
• Reference voltage generation in industrial systems

Single Zener Diodes Procurement Notes

Verify the specific suffix CUS against official Microchip documentation to confirm surface-mount packaging and tolerance specifications. Ensure compatibility with existing PCB footprints and thermal management requirements before procurement. Confirm availability status directly with authorized distributors as lead times may vary.

Single Zener Diodes Selection Notes

Select this component when a 200 V regulation point is required in a compact surface-mount form factor. Consider the 5 W power rating and wide operating temperature range for harsh environments. Compare Zener impedance and leakage characteristics against circuit requirements to ensure adequate regulation stability under varying load conditions.

Single Zener Diodes Part Context

This part belongs to the 1N4989 series of 5-watt glass Zener diodes manufactured by Microchip Technology. The series offers various voltage options within the same mechanical footprint, facilitating design flexibility. The 1N4989 variant specifically targets higher voltage regulation needs compared to lower-voltage counterparts in the same family.

Single Zener Diodes Replacement Considerations

JAN1N4989CUS