1N4126/TR

Single Zener Diodes Overview

The Microchip Technology 1N4126/TR is a 500 mW metallurgically bonded glass Zener diode with a nominal voltage of 51 V. It operates within a junction temperature range of -65 °C to +175 °C and features a maximum noise density of 38.8 μV/√Hz at the test current of 250 μA. The device utilizes an axial-lead DO-35 package and includes a tape-and-reel option indicated by the TR suffix.

Single Zener Diodes Feature Summary

• Hermetically sealed construction using internal metallurgical bonding for high reliability
• Qualified per MIL-PRF-19500/435 standards for JAN, JANTX, JANTXV, and JANS levels
• Low noise density performance suitable for precision regulation applications

Single Zener Diodes Applications

• Voltage regulation in harsh environments requiring radiation hardness
• Precision reference circuits utilizing low-noise characteristics
• High-reliability aerospace and defense electronic systems

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required reliability level and RoHS compliance status. Confirm the presence of the TR suffix indicates tape-and-reel packaging rather than bulk or cut-tape formats. Ensure the requested part number aligns with the manufacturer's current production availability and lead time requirements.

Single Zener Diodes Selection Notes

Select this component when a 51 V Zener voltage is required with strict noise limitations. Consider the operating temperature range and power dissipation derating curves for thermal management. Verify that the axial-lead package fits the mechanical constraints of the target printed circuit board layout.

Single Zener Diodes Part Context

This device belongs to the 1N4099 through 1N4135 series of 500 mW Zener diodes manufactured by Microchip Technology. The series offers various voltage options from 1.8 V to 100 V with different tolerance grades. The 1N4126 variant specifically provides the 51 V breakdown point within this extensive lineup.

Single Zener Diodes Replacement Considerations

Consult official datasheets for cross-reference data. No public substitute part numbers are confirmed in the provided documentation.