AZ23C43-7

Overview

The AZ23C43-7-F is a dual surface mount Zener diode manufactured by Diodes Incorporated, housed in an SOT-23 package. It features a common anode configuration with two independent Zener diodes sharing a single terminal. The nominal Zener voltage is 43V, with a specified range of 40V to 46V at a test current (IZT) of 5.0mA. Maximum power dissipation is rated at 300mW, and the typical thermal resistance from junction to ambient air is 417°C/W. The device operates within a temperature range of -65°C to +150°C. Electrical characteristics include a maximum Zener impedance (ZZT) of 100Ω at IZT = 5.0mA and 700Ω at IZK = 1.0mA. The typical temperature coefficient is +0.110%/°C, and the maximum reverse leakage current is 0.1µA at 32V.

Feature Summary

• Dual Zener diodes integrated in a single common anode configuration for space-efficient circuit design
• High reliability qualification compliant with JEDEC standards and AEC-Q101 ESD ratings
• Totally lead-free and fully RoHS compliant construction with halogen and antimony-free green materials

Applications

• Voltage reference circuits requiring dual regulated rails
• ESD protection networks utilizing high-voltage clamping capabilities
• Automotive electronics systems demanding high-reliability components

Procurement Notes

Verify the complete part number includes the suffix -7-F to confirm commercial grade availability and tape & reel packaging quantity of 3,000 units. Ensure procurement channels are authorized to guarantee compliance with RoHS directives and material specifications. Cross-reference datasheet revision DS18003 Rev. 18 for accurate electrical parameters during sourcing.

Selection Notes

Select this component when a dual Zener solution with a common anode is required in a compact SOT-23 footprint. Consider the 40V to 46V voltage tolerance and +0.110%/°C temperature coefficient for precision applications. Verify that the 300mW power dissipation rating and 417°C/W thermal resistance meet the thermal management requirements of the target PCB layout.

Part Context

This component belongs to the AZ23C series, which encompasses various Zener voltages ranging from 2.7V to 51V. All devices in this family share identical mechanical dimensions and packaging styles while differing in electrical characteristics. The series provides a standardized surface-mount solution for dual Zener applications across multiple voltage levels.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. For automotive-grade equivalents with specific change control requirements, refer to the related Q-suffix parts qualified to AEC-Q100/101/104/200 standards as listed on the manufacturer's website.

FAQ

What is the maximum reverse leakage current specification?

The maximum reverse leakage current is specified as 0.1µA at a reverse voltage of 32V.

How is the device marked for identification?

The marking code for the AZ23C43 is '30', followed by date code information indicating the year and month of assembly.

Is this component suitable for automated insertion?

Yes, the datasheet explicitly states that the device is ideally suited for automated insertion due to its SOT-23 packaging and tape & reel availability.