Diodes Incorporated AZ23C13Q-7-F

Overview

AZ23C13Q-7-F from Diodes Incorporated is a dual common-anode Zener diode in SOT23 package, rated for 300 mW total power dissipation, with nominal Zener voltage 13 V (12.4–14.1 V range at 5 mA), ±0.08 %/°C temperature coefficient, and maximum Zener impedance of 25 Ω at 5 mA - used for precision voltage reference and overvoltage clamping in low-power analog monitoring circuits.

For engineers reviewing the AZ23C13Q-7-F datasheet, AZ23C13Q-7-F pinout, AZ23C13Q-7-F application, or AZ23C13Q-7-F equivalent, this part supports dual-rail voltage regulation, ESD-protected signal conditioning, and automotive-grade voltage supervision where matched dual-Zener tracking (≤5% ΔV_Z) and AEC-Q101 qualification are required.

Technical Context

This device integrates two Zener diodes sharing a common anode terminal in a single SOT23 package, enabling compact dual-reference generation or bidirectional clamping without external node coupling. Its thermal resistance (R_θJA = 417 °C/W) and derating curve support stable operation up to +150 °C ambient when mounted on FR-4 with recommended pad layout.

The diodes exhibit low leakage (<0.1 µA at 10 V reverse bias), tight voltage matching (≤5% V_Z spread between elements), and predictable temperature drift (+0.08 %/°C typical), making them suitable for rail-to-rail sensing and redundant reference paths in safety-critical subsystems.

Key Specifications

Pinout & Package

Package: SOT23 - surface-mount plastic package with matte tin-plated Alloy 42 leadframe, moisture sensitivity level 1, UL 94V-0 rated, 0.008 g weight.

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, AZ23C13Q-7-F uniquely delivers factory-matched dual Zeners in a common-anode configuration, reducing layout complexity and improving thermal tracking in dual-reference or clamping topologies.

Availability

AZ23C13Q-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial sensor signal conditioners, and medical analog front ends requiring stable component supply, AEC-Q101 qualification, and matched dual-Zener performance.

Supply support for AZ23C13Q-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 integrated circuits, specializing in high-reliability components for automotive, industrial, and computing applications.

AZ23C13Q-7-F belongs to the AZ23C series of dual Zener diodes designed specifically for AEC-Q101-compliant voltage reference and protection in space-constrained, thermally demanding environments.

FAQ

What is the meaning of the 'Q' suffix in AZ23C13Q-7-F?

The 'Q' suffix denotes automotive qualification per AEC-Q101, including stress testing, PPAP documentation readiness, and manufacturing in IATF 16949-certified facilities. It confirms suitability for automotive applications such as body electronics and ADAS subsystems, unlike commercial-grade variants without the Q suffix.

Can AZ23C13Q-7-F be used as a single Zener by connecting only one cathode?

Yes - either cathode (Pin 2 or Pin 3) may be used independently with the common anode (Pin 1) as a standalone 13 V Zener. The unused cathode must be left floating or tied to a non-interfering potential; it does not affect regulation of the active element under normal bias conditions.

How does the ≤5% ΔV_Z specification impact circuit design?

This spec guarantees that the two Zener voltages differ by no more than 5% of nominal (≤0.65 V at 13 V), enabling accurate differential referencing, matched clamping thresholds, and reduced calibration overhead in dual-path analog systems - verified per DS18003 Rev. 18-2 test methodology.

Is thermal derating required above 25°C ambient?

Yes - power dissipation must be linearly derated above 25°C using R_θJA = 417 °C/W. At 85°C ambient, maximum allowable power drops to 177 mW (300 mW × [1 − (85−25)/417]), requiring current limiting or forced-air cooling for sustained operation near thermal limits.