1N5266B

Single Zener Diodes Overview

The 1N5266B is a silicon planar Zener diode manufactured by SMC Diode Solutions. It provides a nominal Zener voltage of 68V with a tolerance of ±5%. The device is designed for through-hole mounting in a DO-35 glass axial package. Key electrical characteristics include a maximum dynamic impedance of 230 Ω and a maximum reverse leakage current of 100 nA. It operates within a junction temperature range of -65°C to +175°C and features a single unidirectional configuration.

Single Zener Diodes Feature Summary

• Utilizes silicon planar technology for stable voltage regulation
• Hermetically sealed glass construction in the DO-35 package
• High thermal stability supporting extended operating temperatures

Single Zener Diodes Applications

• Voltage reference circuits requiring precise regulation
• Overvoltage protection in electronic systems
• Clamping applications in signal processing paths

Single Zener Diodes Procurement Notes

Verify the specific manufacturer designation, as the 1N5266B part number is historically associated with Microsemi (now Microchip) and other legacy semiconductor producers. Confirm that the SMC Diode Solutions variant matches the required hermetic sealing and lead finish specifications. Ensure compliance with RoHS directives if applicable to the target assembly, noting that some variants may differ in environmental compliance status.

Single Zener Diodes Selection Notes

Select this component when a standard 68V Zener voltage is required in a compact axial glass package. The DO-35 form factor suits space-constrained through-hole designs. Consider the 230 Ω dynamic impedance for noise sensitivity requirements. Verify power dissipation limits relative to ambient temperature derating curves provided in the official datasheet.

Single Zener Diodes Part Context

This component belongs to the standard Zener diode category used for voltage regulation and protection. The 1N5266B designation specifically identifies the 68V breakdown voltage variant within the broader series. It serves as a fundamental discrete semiconductor element in analog circuit design.

Single Zener Diodes Replacement Considerations

Cross-reference with 1N5266B-1 or 1N5266B-A from other manufacturers such as Microchip or Diodes Incorporated. Verify pinout compatibility and package dimensions before substitution.