BZX55C33

Single Zener Diodes Overview

The BZX55C33 is a silicon voltage regulator diode manufactured by onsemi, designed for through-hole mounting in DO-35 (DO-204AH) axial lead glass packages. It provides a nominal Zener voltage of 33 V with a 5% tolerance at a test current of 5 mA. The device dissipates up to 500 mW and operates within a temperature range of -65°C to +175°C. Key electrical characteristics include a maximum reverse leakage current of 100 nA and a Zener impedance of 80 Ohms.

Single Zener Diodes Feature Summary

• Hermetically sealed glass construction offers protection against common environmental conditions
• Utilizes double slug type construction with metallurgical bonded junctions
• Features silicon-oxide passivated junctions for stable operating characteristics

Single Zener Diodes Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection stages in electronic systems
• General-purpose voltage regulation tasks

Single Zener Diodes Procurement Notes

Verify the specific manufacturer source code suffix, as the base part number may correspond to different packaging or compliance variants such as bulk or reel configurations. Confirm RoHS status and availability directly with authorized distributors, as standard production runs may be subject to change or discontinuation without notice.

Single Zener Diodes Selection Notes

Select this component when a 33 V regulated potential is required in a compact axial package. Ensure the circuit design accommodates the specified 500 mW power dissipation limit and that the operating environment remains within the -65°C to +175°C thermal range. Verify that the 80 Ohm impedance meets the dynamic stability requirements of the application.

Single Zener Diodes Part Context

This device belongs to the BZX55C series of 500 mW Zener diodes from onsemi. The series utilizes silicon-oxide passivation technology and is housed in the DO-35 glass package, which is smaller than the conventional DO-204AA form factor while maintaining hermetic sealing capabilities for reliable performance.

Single Zener Diodes Replacement Considerations

Cross-reference with Vishay BZX55C33 or equivalent 33 V 500 mW DO-35 Zener diodes from other manufacturers. Verify that substitute parts match the 5% voltage tolerance, 500 mW power rating, and DO-35 package dimensions to ensure mechanical and electrical compatibility.