Diodes Incorporated AZ23C13-7

Overview

AZ23C13-7 from Diodes Incorporated is a dual common-anode 13V Zener diode pair in SOT23 package, rated for 300mW total power dissipation, with ±5% matching between zener voltages (12.4–14.1V at 5mA), 25Ω typical zener impedance, and +0.080%/°C temperature coefficient - used for precision voltage reference and overvoltage clamping in DC power rail monitoring circuits.

For engineers reviewing the AZ23C13-7 datasheet, AZ23C13-7 pinout, AZ23C13-7 application, or AZ23C13-7 equivalent, this dual Zener supports matched-voltage regulation in space-constrained analog front-ends, low-power sensor biasing, and redundant voltage supervision where thermal tracking and tight V_Z matching are critical.

Technical Context

This device integrates two discrete Zener diodes sharing a common anode terminal, enabling bidirectional clamping or dual-reference generation from a single footprint. Its matched V_Z tolerance (≤5%) and low thermal resistance (417°C/W) support stable operation across -65°C to +150°C ambient.

The SOT23 package uses matte tin-plated alloy-42 leadframe, meets JEDEC high-reliability standards, and delivers 8kV HBM ESD robustness - making it suitable for industrial control I/O protection and automotive-grade non-safety-critical voltage stabilization when paired with Q-suffix variants.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount plastic package with 3 terminals, 0.008 g weight, UL 94V-0 rating, and moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C13-7-F and DZ23C13-7-F, AZ23C13-7 uniquely delivers matched dual-Zener performance in a single SOT23 footprint with guaranteed ≤5% V_Z spread - essential for differential sensing, rail-to-rail clamping, and temperature-compensated references where thermal tracking directly impacts measurement fidelity.

Availability

AZ23C13-7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive body control module power monitoring, and medical infusion pump voltage supervision requiring stable component supply and long-term lifecycle continuity.

Supply support for AZ23C13-7 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, energy-efficient components for industrial, automotive, and computing markets.

AZ23C13-7 belongs to the AZ23 series of dual Zener diodes designed specifically for space-constrained, thermally coupled voltage reference and clamping applications where matched characteristics and JEDEC-qualified reliability are mandatory.

FAQ

What is the maximum continuous Zener current for AZ23C13-7 at 25°C ambient?

The device is rated for 300 mW total power dissipation. At nominal 13 V Zener voltage, this corresponds to a maximum continuous current of approximately 23 mA (300 mW ÷ 13 V). Derating begins above 25°C per the published power derating curve - at 100°C ambient, max current drops to ~12 mA.

Can AZ23C13-7 be used for bidirectional ESD protection?

No - AZ23C13-7 is a dual common-anode Zener, optimized for unidirectional voltage regulation and clamping. For bidirectional ESD protection, TVS diodes such as D3V3M1U2SOT-7-F (3.3 V, ±15 kV IEC 61000-4-2) are specified; AZ23C13-7 lacks symmetric breakdown and is not characterized for fast transient suppression.

Is there a qualified automotive version of AZ23C13-7?

Yes - the automotive-grade variant is AZ23C13Q-7-F, qualified to AEC-Q101, manufactured in IATF 16949-certified facilities, and PPAP-capable. It shares identical electrical specifications but includes enhanced change control, lot traceability, and extended temperature validation (-40°C to +150°C).

How does the +0.080%/°C temperature coefficient affect circuit accuracy?

This positive coefficient means V_Z increases by ~10.4 mV/°C at 13 V. Over a 100°C range (−40°C to +60°C), total drift is ~1.04 V - critical for precision references. Designers must either limit ambient swing, use compensation networks, or select lower-coefficient variants (e.g., AZ23C6V2-7-F at +0.030%/°C) for tighter stability.