AZ23B22-G3-18

Overview

The AZ23B22-G3-18 is a silicon planar Zener diode array manufactured by Vishay General Semiconductor - Diodes Division. It features a dual common anode configuration within a SOT-23 surface-mount package. The nominal Zener voltage is 22 V with a tight tolerance of ±2%, indicated by the 'B' in the ordering code. Electrical characteristics include a maximum reverse leakage current of 50 µA at 17 V and a dynamic resistance of 55 Ω at a test current of 5 mA. The device supports a power dissipation of up to 500 mW, operates across a temperature range of -55 °C to +150 °C, and complies with RoHS standards.

Feature Summary

• Dual common anode configuration for integrated circuit protection
• Tight voltage tolerance of ±2% for precision applications
• High ESD capability exceeding 8 kV (HBM) and 800 V (MM)
• Green commercial grade construction compliant with RoHS

Applications

• Voltage reference circuits requiring stable dual outputs
• ESD protection for sensitive signal lines
• Overvoltage clamping in portable electronic devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm that the specific suffix matches the required tape-and-reel packaging format. Ensure compliance with regional environmental regulations such as RoHS and REACH before finalizing procurement orders.

Selection Notes

Select this part when a precise 22 V dual Zener array is needed in a compact SOT-23 footprint. The ±2% tolerance distinguishes it from standard ±5% variants. Verify thermal management requirements against the 500 mW dissipation limit under expected operating conditions.

Part Context

This component belongs to the AZ23-G series of small signal Zener diodes. The series offers various voltage grades based on the E24 standard. The 'G3' suffix denotes green, lead-free commercial grade materials. The '-18' suffix specifies the 10,000-unit reel packaging format.

Replacement Considerations

AZ23C22-G3-18: Offers identical electrical performance but with a wider ±5% voltage tolerance instead of ±2%. Suitable if tighter voltage accuracy is not critical for the application.