BZX79-C68,143

Single Zener Diodes Overview

The BZX79-C68,143 is a single Zener diode manufactured by Nexperia USA Inc., designed for low-power voltage regulation applications. It features a nominal Zener voltage of 68 V with a tolerance of ±5%. The device is housed in an ALF2 (SOD-27/DO-35) through-hole package and supports a maximum power dissipation of 400 mW. Key electrical characteristics include a maximum Zener impedance of 240 Ohms and a reverse leakage current of 50 nA at 47.6 V. The component operates within a temperature range of -65°C to 200°C.

Single Zener Diodes Feature Summary

• Provides stable voltage regulation with a nominal breakdown voltage of 68 V.
• Utilizes a hermetically sealed leaded glass SOD-27 (ALF2) package for reliable through-hole mounting.
• Supports high thermal stability with a maximum junction temperature rating up to 200°C.
• Offers tight voltage tolerance of ±5% for precise reference applications.

Single Zener Diodes Applications

• Low voltage stabilizers
• Voltage references
• Protection circuits

Single Zener Diodes Procurement Notes

Verify the specific suffix against official Nexperia documentation to confirm package type and tolerance. The BZX79-C series typically denotes approximately ±5% tolerance. Ensure the ordering part number matches the required packaging format, such as tape and reel or cut tape, as indicated in distributor catalogs. Confirm RoHS compliance status via the manufacturer's latest restricted substances declaration before finalizing procurement.

Single Zener Diodes Selection Notes

Select this component when a 68 V reference point is required in through-hole designs. The ALF2 package offers robust mechanical stability compared to surface-mount alternatives. Consider the 400 mW power rating for thermal management in enclosed environments. Verify that the 240 Ohm impedance meets the dynamic regulation requirements of the target circuit load.

Single Zener Diodes Part Context

This device belongs to the Nexperia BZX79 series of low-power voltage regulator diodes. The series includes various nominal voltages ranging from 2.4 V to 75 V. The 'C' suffix indicates the approximate ±5% tolerance variant, distinct from the 'B' series which offers tighter ±2% tolerance. All variants share the same SOD-27 glass passivated package construction.

Single Zener Diodes Replacement Considerations

Compatible substitutes within the same family include BZX79-C68,113 and BZX79-C68,133. These parts share identical electrical specifications and package dimensions. Verify that the substitute supplier's datasheet confirms the 68 V nominal voltage and ±5% tolerance to ensure functional equivalence.