AZ23C47-HE3_A-18

Overview

The AZ23C47-HE3_A-18 is a dual common anode silicon planar Zener diode array from the Vishay AZ23 series, housed in a SOT-23 package. It features a nominal Zener voltage of 47 V with a ±5% tolerance and a test current of 2 mA. The device has a maximum reverse leakage current of 0.05 µA at 35 V and a dynamic resistance of 97 Ω at 2 mA. Qualified to AEC-Q101 standards, it operates within a temperature range of -55 °C to +150 °C and offers ESD protection exceeding 8 kV (HBM) and 800 V (MM).

Feature Summary

• Dual common anode configuration for space-efficient circuit design.
• AEC-Q101 qualified for automotive reliability requirements.
• High electrostatic discharge capability per AEC-Q101 standards.
• RoHS-compliant construction utilizing advanced planar technology.

Applications

• Automotive electronic circuits requiring robust voltage regulation.
• General-purpose voltage reference applications.
• Protection against overvoltage transients in sensitive logic circuits.

Procurement Notes

Verify the specific ordering suffix to confirm the reel size and tape width. Confirm that the HE3_A suffix aligns with the required AEC-Q101 qualification level for your application. Ensure the component matches the intended surface mount footprint on the printed circuit board layout.

Selection Notes

Select this part when a dual Zener array with a 47 V nominal rating is required. The ±5% tolerance suits standard commercial and automotive designs. Verify that the 2 mA test current meets the biasing requirements of the target circuit. Consider the thermal resistance values if operating near the upper temperature limits.

Part Context

This component belongs to the AZ23 series of small signal Zener diodes manufactured by Vishay Semiconductors. The series provides various voltage options graded according to the international E24 standard. The AZ23C47 variant specifically targets the 47 V segment of the product line.

Replacement Considerations

AZ23C47-E3-18