Diodes Incorporated AZ23C24-7-F

Overview

AZ23C24-7-F from Diodes Incorporated is a dual common-anode 24 V Zener diode pair in SOT23 package, rated for 300 mW total power dissipation, with ±5% matching between zener voltages (22.8–25.6 V at 5 mA), 80 Ω typical zener impedance, and +0.090 %/°C temperature coefficient - used for precision voltage reference and overvoltage clamping in DC power rails.

For engineers reviewing the AZ23C24-7-F datasheet, AZ23C24-7-F pinout, AZ23C24-7-F application, or AZ23C24-7-F equivalent, key selection criteria include matched dual-zener tolerance, thermal resistance (417 °C/W), JEDEC-qualified reliability, AEC-Q101 HBM ESD rating (8 kV), and SOT23 footprint compatibility with automated assembly.

Technical Context

This dual Zener operates in common-anode configuration: both cathodes are independent terminals, sharing one anode connection. It delivers stable 24 V regulation under 5 mA test current with low dynamic impedance (80 Ω) and tight inter-diode voltage matching (≤5%).

The device is qualified to AEC-Q101 for automotive-grade reliability, features 8 kV HBM ESD protection, and maintains operation across –65 °C to +150 °C ambient range while dissipating up to 300 mW on FR-4 PCB with recommended pad layout.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount plastic package with matte tin-plated alloy 42 leadframe, moisture sensitivity level 1, UL 94V-0 flammability rating, and 0.008 g mass.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-Zener voltage reference applications.

Compared with BZX84-C24LT1G and DZ23C24-7-F, AZ23C24-7-F uniquely delivers matched dual 24 V references in common-anode topology - critical for space-constrained differential sensing and single-point grounding in noise-sensitive analog systems.

Availability

AZ23C24-7-F is available at Aetrix Electronics and suitable for industrial power monitoring, automotive body control modules, and medical sensor signal conditioning requiring stable component supply and AEC-Q101-compliant reliability.

Supply support for AZ23C24-7-F includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-reliability components for automotive, industrial, and computing markets.

AZ23C24-7-F belongs to the AZ23 series of dual Zener diodes designed specifically for space-efficient, matched-voltage reference and transient suppression in high-density PCB layouts.

FAQ

What is the maximum continuous reverse current for reliable operation?

The AZ23C24-7-F supports up to 12.5 mA continuous reverse current at 24 V before reaching its 300 mW power limit. Derating begins above 40 °C ambient per the published power derating curve, reducing usable current to ~9 mA at 100 °C ambient.

Can this device replace two separate single-Zener diodes in an existing design?

Yes - AZ23C24-7-F replaces two discrete 24 V Zeners with identical electrical specs while providing guaranteed ≤5% inter-diode voltage matching and shared anode routing. Pin 1 must connect to ground or system return, and Pins 2/3 route independently to respective nodes.

Is the SOT23 package compatible with lead-free reflow profiles?

Yes - the AZ23C24-7-F uses matte tin finish on alloy 42 leads and green molding compound rated for lead-free reflow. It complies with J-STD-020 moisture sensitivity Level 1 and withstands peak temperatures up to 260 °C per JEDEC standards.

Does the device meet automotive qualification requirements out of the box?

No - AZ23C24-7-F is commercial-grade. For automotive use, select the Q-suffix variant (e.g., AZ23C24Q-7-F), which is AEC-Q101 qualified, PPAP-capable, and manufactured in IATF 16949-certified facilities.