1N4126D/TR

Single Zener Diodes Overview

The Microchip Technology 1N4126D/TR is a 500 mW metallurgically bonded glass Zener diode with a nominal voltage of 51 V and a 1% tolerance. It operates in the axial-lead DO-35 package, featuring a maximum reverse current of 40 µA and dynamic impedance of 38.8 Ω at a test current of 250 µA. The device supports a junction temperature range from -65 °C to +175 °C and includes a tape-and-reel option.

Single Zener Diodes Feature Summary

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

Single Zener Diodes Applications

• High-reliability military and aerospace voltage regulation
• Precision reference circuits requiring tight voltage tolerances
• Harsh environment power supply protection

Single Zener Diodes Procurement Notes

Verify that the specific ordering suffix matches the required qualification level (JAN, JANTX, JANTXV, or JANS) and RoHS compliance status. Confirm the presence of the TR suffix for tape-and-reel packaging. Ensure the component meets all environmental and testing standards specified in MIL-PRF-19500/435 before integration into final assemblies.

Single Zener Diodes Selection Notes

Select this component when a 51 V Zener voltage with strict 1% tolerance is required. The DO-35 axial lead package is appropriate for through-hole mounting. Consider the metallurgical bond construction for applications demanding superior thermal stability and radiation hardness compared to standard commercial equivalents.

Single Zener Diodes Part Context

This part belongs to the 1N4099-1 through 1N4135-1 series of 500 mW Zener diodes manufactured by Microchip Technology. These devices are designed for robust performance in demanding environments, offering a wide selection of voltages from 1.8 V to 100 V with various tolerance options.

Single Zener Diodes Replacement Considerations

Direct replacements include other 1N4126 variants with matching 1% tolerance and 500 mW rating. Verify package compatibility and qualification level equivalence when substituting.