AZ23C3V6-E3-18

Overview

The AZ23C3V6-E3-18 is a dual common-anode silicon planar Zener diode array from the Vishay AZ23 series, housed in an SOT-23 surface-mount package. It provides two independent Zener diodes sharing a common anode terminal. The nominal Zener voltage is 3.6 V with a tolerance of ±5%, tested at a current of 5 mA. Maximum reverse leakage current is 5 µA at 3 V, and dynamic resistance is specified at 90 Ω. The device operates within a temperature range of -55 °C to +150 °C and dissipates up to 300 mW on a standard FR-4 board.

Feature Summary

• Dual common-anode configuration for space-efficient circuit design
• Zener voltages graded according to international E24 standard
• ESD protection capability exceeding 8 kV via human body model

Applications

• Voltage reference circuits requiring dual rails
• Clamping and protection stages in signal processing
• Overvoltage protection for low-voltage logic interfaces

Procurement Notes

Verify the ordering code suffix against the manufacturer's documentation to confirm packaging specifications. The '-18' suffix indicates units are supplied in 10,000-unit reels on 13 mm tape. Confirm RoHS compliance status and ensure the component meets the required moisture sensitivity level for the intended assembly process.

Selection Notes

Select this part when a dual Zener array with a common anode topology is required in a compact SOT-23 footprint. Ensure the application voltage does not exceed the maximum ratings and that the thermal environment supports the specified power dissipation limits on the target PCB layout.

Part Context

This component belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor. The series offers various voltage options ranging from 2.2 V to 75 V, all available in the same SOT-23 package family to simplify inventory management for designs utilizing multiple voltage references.

Replacement Considerations

Direct replacements include other AZ23C3V6 variants such as AZ23C3V6-G3-08 or AZ23C3V6-E3-08, which share identical electrical characteristics but differ in reel quantity and packaging format.