1N5266

Single Zener Diodes Overview

The Microchip Technology 1N5266 is a single Zener diode with a nominal voltage of 68 V and a tolerance of 5%. It operates in the DO-35 axial leaded package, dissipating up to 500 mW. The device features a maximum reverse leakage current of 100 nA and a Zener impedance of 230 Ohms at a test current of 1.8 mA. It supports an operating temperature range from -65 °C to +175 °C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation using silicon junction technology
• Designed for high-temperature operation up to 175 °C
• Utilizes hermetically sealed glass axial-leaded construction

Single Zener Diodes Applications

• Voltage reference circuits
• Overvoltage protection
• Biasing elements in analog circuits

Single Zener Diodes Procurement Notes

Verify the specific manufacturer suffix or prefix against official datasheets, as the base part number may be produced by multiple vendors including Microchip, Diodes Incorporated, and Microsemi. Confirm RoHS compliance status and package type (DO-35 vs DO-204AH) before procurement, as specifications vary significantly between manufacturers despite sharing the same core designation.

Single Zener Diodes Selection Notes

Select this component when a 68 V regulation point is required in a through-hole design. Ensure the circuit can handle the specified 500 mW power dissipation and that the 230 Ohm impedance aligns with noise requirements. Verify thermal derating needs if operating near the upper temperature limit.

Single Zener Diodes Part Context

This component belongs to the standard 1N52xx series of low-power Zener diodes. While the base number indicates electrical characteristics, the full part number often includes prefixes or suffixes denoting specific screening levels, packaging formats, or manufacturer-specific variations within the industry-standard specification.

Single Zener Diodes Replacement Considerations

Substitutes include 1N5266B/TR (Microchip), 1N5266BUR-1 (Microchip/Microsemi), and MSP1N5266-1 (Microsemi). Verify package compatibility and exact tolerance grades when replacing across different manufacturers.