Diodes Incorporated AZ23C11-7-F

Overview

AZ23C11-7-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 11 V (10.4–11.6 V range at 5 mA), ±5% matching between diodes, and +0.070 %/°C temperature coefficient - used for precision voltage reference and overvoltage clamping in dual-rail power monitoring circuits.

For engineers reviewing the AZ23C11-7-F datasheet, AZ23C11-7-F pinout, AZ23C11-7-F application, or AZ23C11-7-F equivalent, this part supports dual-voltage regulation in space-constrained DC-DC feedback paths, low-power sensor biasing, and rail-to-rail voltage supervision where matched Zener characteristics and JEDEC-qualified reliability are required.

Technical Context

This device integrates two Zener diodes sharing a common anode terminal, enabling bidirectional clamping or independent reference generation from a single SOT23 footprint. Its thermal resistance (R_θJA = 417 °C/W) and 300 mW rating define safe operating limits under FR-4 PCB mounting per Diodes' recommended pad layout.

The matched Zener voltage tolerance (≤5% ΔV_Z) and specified temperature coefficient (+0.070 %/°C) support stable dual-reference designs across –65 °C to +150 °C ambient, with ESD robustness (HBM 8 kV, IEC 61000-4-2 contact 8 kV) suitable for industrial and automotive-qualified derivative variants.

Key Specifications

Pinout & Package

Package: SOT23 - molded plastic, green compound (UL 94V-0), matte tin-plated Alloy 42 leadframe, 0.008 g weight, moisture sensitivity level 1.

Key Features

Applications

Equivalent & Alternatives

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

Compared with BZX84-C11LT1G and DZ23C11-7-F, AZ23C11-7-F uniquely delivers guaranteed ≤5% inter-diode V_Z matching in a common-anode configuration - reducing component count and layout complexity in dual-supply monitoring while maintaining identical thermal and electrical specs.

Availability

AZ23C11-7-F is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive body control modules, medical diagnostic biasing, and telecom line card protection requiring stable component supply and JEDEC-qualified reliability.

Supply support for AZ23C11-7-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.

AZ23C11-7-F belongs to the AZ23C-series dual Zener family, engineered specifically for high-reliability voltage reference and clamping in space-constrained, thermally demanding applications - emphasizing matched performance, automotive-grade qualification pathways, and green compliance.

FAQ

What is the polarity configuration of AZ23C11-7-F?

AZ23C11-7-F uses a common-anode configuration: Pin 1 is the shared anode, while Pins 2 and 3 are the individual cathodes for each Zener diode. This allows simultaneous forward-biasing of either Zener by grounding its cathode while holding the anode at a positive potential - essential for bidirectional clamping or dual-reference generation.

Does AZ23C11-7-F meet automotive qualification standards?

The commercial-grade AZ23C11-7-F is qualified to AEC-Q101 for high-reliability operation (HBM ESD 8 kV), but it is not automotive-qualified out-of-box. Diodes offers automotive-grade variants with Q-suffix (e.g., AZ23C11Q-7-F) that include PPAP documentation, IATF 16949 manufacturing, and full AEC-Q200 stress testing - required for under-hood or safety-critical vehicle systems.

How does the 300 mW power rating apply to dual-Zener operation?

The 300 mW rating is the total power dissipation limit for the entire device - not per diode. When both Zeners conduct simultaneously (e.g., during bidirectional clamping), their combined power must remain ≤300 mW. Derating is required above 25 °C ambient per Figure 1, with full rating valid only up to ~70 °C on FR-4 with Diodes' recommended pad layout.

Can AZ23C11-7-F replace a single Zener diode in existing designs?

Yes - but only if the circuit uses the common-anode topology and requires only one Zener function. In that case, leave the unused cathode (Pin 2 or 3) unconnected and treat the device as a single 11 V Zener. However, doing so forfeits the key advantage of matched dual operation and occupies more board area than a dedicated single-Zener SOT23 part like BZX84-C11LT1G.