1N4122/TR

Single Zener Diodes Overview

The Microchip Technology 1N4122/TR is a 500 mW metallurgically bonded glass Zener diode in the axial-lead DO-35 (DO-204AH) package. It features a nominal Zener voltage of 36 V with a standard tolerance of ±5%. The device operates within a junction and storage temperature range of -65 °C to +175 °C. Electrical characteristics include a maximum reverse current of 27.4 µA at 25 °C, a dynamic impedance of 200 Ω, and a test current of 250 µA.

Single Zener Diodes Feature Summary

• Internal metallurgical bond construction for high reliability.
• Hermetically sealed glass DO-35 package design.
• Inherently radiation hard performance characteristics.

Single Zener Diodes Applications

• Voltage regulation over broad ranges of current and temperature.
• High reliability applications requiring MIL-PRF-19500/435 qualification.

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required tape and reel packaging configuration. Confirm the exact voltage tolerance grade and reliability level against the official datasheet specifications before procurement. Ensure compatibility with the intended thermal management requirements given the power dissipation limits.

Single Zener Diodes Selection Notes

Select this component for circuits requiring stable voltage reference or regulation in harsh environments. Consider the low capacitance and noise density specifications for sensitive signal paths. Evaluate the operating temperature range and power derating curves to ensure safe operation under expected load conditions.

Single Zener Diodes Part Context

This part belongs to the 1N4099-1 through 1N4135-1 series of 500 mZener voltage regulators. These devices are available in various voltage ratings from 1.8 V to 100 V with different tolerance options. The series supports multiple qualification levels including JAN, JANTX, JANTXV, and JANS for specialized industrial needs.

Single Zener Diodes Replacement Considerations

JAN1N4122-1

Single Zener Diodes FAQ

What is the maximum noise density specification for this device?

The maximum noise density is specified as 40 μV / √Hz for Zener voltages of 6.8 V and above.

How is polarity indicated on the component?

Polarity is indicated by a band on the cathode end of the glass package.