AZ23C3V3-E3-18

Overview

The AZ23C3V3-E3-18 is a dual common-anode silicon planar Zener diode array from Vishay, housed in an SOT-23 package. It provides two independent Zener diodes sharing a common anode terminal. The nominal Zener voltage is 3.3 V with a ±5% tolerance, tested at a current of 5 mA. Maximum reverse leakage current is 5 µA at 3.0 V, and dynamic resistance is 95 Ω at the test current. The device operates within a temperature range of -55 °C to +150 °C and dissipates up to 300 mW on an FR-4 board.

Feature Summary

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

Applications

• Voltage reference circuits requiring dual stable potentials
• Overvoltage protection for low-voltage signal lines
• Clamping applications in consumer electronics

Procurement Notes

Verify the specific ordering suffix against official documentation before procurement. The '-E3' designation indicates RoHS compliance for commercial grade devices, while other suffixes may denote different qualifications or packaging formats. Confirm that the required tape-and-reel quantity matches the manufacturer's standard minimum order specifications for the selected packaging type.

Selection Notes

Select this component when a dual Zener array with a common anode topology is required in a compact surface-mount footprint. Ensure the application voltage does not exceed the maximum ratings and that the thermal dissipation requirements align with the specified power limits on the target PCB layout. Verify that the ±5% tolerance meets the circuit precision requirements.

Part Context

This part belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay General Semiconductor - Diodes Division. The series offers various voltage options within the SOT-23 package, providing designers with standardized components for voltage regulation and protection tasks across multiple electronic product categories.

Replacement Considerations

AZ23C3V3-E3-08

FAQ

What is the marking code for the AZ23C3V3-E3-18?

The marking code for this device is D43.

How is the ESD capability defined for this component?

The ESD capability is defined according to AEC-Q101 standards, specifying a human body model rating greater than 8 kV and a machine model rating greater than 800 V.

What is the maximum operating junction temperature?

The maximum operating junction temperature (Tj) is 150 °C.