BZX79C8V2

Single Zener Diodes Overview

The onsemi BZX79C8V2 is a single silicon Zener diode designed for low-power voltage regulation and reference applications. It features a nominal Zener voltage of 8.2 V with a tolerance of ±5%. The device operates in a through-hole DO-35 (SOD-27) axial leaded glass package, suitable for standard PCB mounting. Key electrical parameters include a maximum power dissipation of 500 mW, a test current of 5 mA, and a maximum reverse leakage current of 700 nA at 5 V. The unit exhibits a Zener impedance of 15 Ohms and a voltage temperature coefficient of 6.2 mV/°C. It supports an operating temperature range from -65°C to +200°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation within a normalized E24 series tolerance range for precision circuit requirements.
• Utilizes hermetically sealed leaded glass construction to ensure environmental durability and long-term reliability.
• Offers high thermal stability with an extended operating temperature range up to +200°C.

Single Zener Diodes Applications

• Low voltage stabilizers
• Voltage references
• General-purpose clipping and clamping circuits

Single Zener Diodes Procurement Notes

Verify the specific manufacturer designation when sourcing, as the BZX79-C8V2 part number is also utilized by Nexperia with potentially different power ratings. Confirm RoHS compliance status and packaging format (bulk vs. tape) directly with the supplier. Ensure the selected component matches the required 500 mW dissipation rating for the intended application environment.

Single Zener Diodes Selection Notes

Select this component for designs requiring a reliable 8.2 V reference point in through-hole layouts. Consider the ±5% tolerance if tighter voltage accuracy is not critical. Evaluate the 15 Ohm impedance against load regulation requirements. The DO-35 package allows for easy manual soldering or wave soldering processes compared to surface-mount alternatives.

Single Zener Diodes Part Context

This device belongs to the BZX79 series of low-power voltage regulator diodes manufactured by onsemi. The series provides standardized voltage options ranging from 2.4 V to 75 V. The 'C' suffix indicates the approximate ±5% tolerance variant, distinguishing it from the tighter ±2% 'B' series. These diodes are widely used in consumer electronics and industrial control systems for basic protection and regulation tasks.

Single Zener Diodes Replacement Considerations

The BZX55C8V2 is a documented alternative from onsemi offering similar 8.2 V regulation but with lower leakage current (100 nA) and lower impedance (7 Ohms). Verify pinout compatibility and thermal management requirements when substituting between these axial packages.