AZ23B33-E3-08

Overview

The AZ23B33-E3-08 is a silicon planar Zener diode from Vishay's AZ23 series, housed in an SOT-23 package. It features a nominal Zener voltage of 33 V with a ±2% tolerance (indicated by the 'B' suffix). The device operates at a test current of 2 mA and dissipates up to 500 mW. Key electrical parameters include a reverse leakage current of 50 µA maximum at 40 V and dynamic resistances of 80 Ω at IZT1 and 250 Ω at IZT2. It complies with RoHS standards and supports peak soldering temperatures of 260 °C.

Feature Summary

• Silicon planar construction for reliable voltage regulation
• Graded Zener voltages according to international E24 standard
• ESD protection capability exceeding 8 kV via human body model
• RoHS-compliant commercial grade material categorization

Applications

• Voltage reference circuits requiring stable DC levels
• Overvoltage protection in low-power electronic systems
• Clamping applications in signal processing paths

Procurement Notes

Verify the ordering code matches the required tolerance and packaging format. Confirm that the component meets specific environmental compliance requirements for the target region. Ensure compatibility with automated placement equipment regarding the SOT-23 footprint and tape dimensions before finalizing purchase orders.

Selection Notes

Select this variant when a precise 33 V regulation point is needed with tight tolerance constraints. Consider the thermal resistance values when designing heat dissipation strategies. Evaluate the dynamic resistance specifications against the load requirements to ensure adequate performance under varying current conditions.

Part Context

This component belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series offers a wide range of standardized voltage options within a compact surface-mount form factor, suitable for space-constrained printed circuit board layouts.

Replacement Considerations

Direct substitutes must match the 33 V nominal voltage, ±2% tolerance, SOT-23 package, and 500 mW power rating. Verify equivalent dynamic resistance and leakage current specifications to maintain circuit performance integrity during cross-brand or alternative sourcing scenarios.