Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Discrete Semiconductor Products > Diodes > Zener > Zener Diode Arrays

Diodes Incorporated AZ23C12-7-F

Name: AZ23C12-7-F
Brand: Diodes Incorporated
SKU: AZ23C12-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: AZ23C12-7-F

Manufacturer:: Diodes Incorporated

Category:: Zener Diode Arrays

Package:: TO-236-3, SC-59, SOT-23-3

Datasheet:: AZ23C12-7-F.pdf

Description:: DIODE ZENER ARRAY 12V SOT23-3

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:8,564

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

AZ23C12-7-F from Diodes Incorporated is a dual common-anode 12 V Zener diode pair in SOT23 package, rated for 300 mW total power dissipation, with ±5% matching between zener voltages (11.4–12.7 V at 5 mA), 20 Ω typical zener impedance, and +0.075 %/°C temperature coefficient - used for precision voltage reference and overvoltage clamping in power supply feedback loops.

For engineers reviewing the AZ23C12-7-F datasheet, AZ23C12-7-F pinout, AZ23C12-7-F application, or AZ23C12-7-F equivalent, this dual Zener supports matched-voltage regulation in compact DC-DC converters, rail-to-rail voltage monitoring circuits, and dual-threshold protection schemes where thermal tracking and low dynamic impedance are critical.

Technical Context

This device integrates two discrete Zener diodes sharing a common anode terminal, enabling bidirectional voltage clamping or dual-reference generation from a single footprint. Its matched V_Z tolerance (≤5%) and low TC ensure stable operation across temperature in feedback networks.

The SOT23 package delivers 417 °C/W junction-to-ambient thermal resistance on FR-4 PCBs, supporting continuous 300 mW dissipation at ≤+85°C ambient when using recommended pad layout - critical for space-constrained industrial power modules.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage (V_Z)	11.4–12.7 V at I_ZT = 5 mA - defines precise clamping threshold for 12 V rail supervision
Power Dissipation (P_D)	300 mW total - limits maximum combined current to ~25 mA at 12 V without derating
Zener Impedance (Z_ZT)	20 Ω typical at 5 mA - ensures minimal voltage shift under load transients in regulation circuits
Temperature Coefficient	+0.075 %/°C - predicts +9 mV/°C drift, enabling accurate thermal compensation in reference designs
Reverse Leakage (I_R)	≤0.1 µA at 9.0 V - guarantees negligible quiescent current in high-impedance sensing nodes
V_Z Matching	≤5% ΔV_Z between diodes - enables tightly coupled dual-reference generation without trimming

Pinout & Package

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

Pin/Terminal	Circuit Role	Design Meaning
Anode (Pin 1)	Common Anode Node	Shared cathode return path for both Zeners - connects to system ground or low-side reference point
Cathode A (Pin 2)	Zener A Cathode	First Zener output node - provides 12 V reference when biased against common anode
Cathode B (Pin 3)	Zener B Cathode	Second Zener output node - enables independent or differential clamping with matched characteristics

Key Features

Feature	Design Value
Dual common-anode configuration	Reduces PCB area by 50% vs. two discrete SOT23 Zeners while maintaining matched thermal behavior
≤5% V_Z matching	Eliminates need for external trimming in dual-threshold detection circuits (e.g., brown-in/brown-out)
300 mW total power rating	Supports 25 mA combined Zener current - sufficient for TL431 biasing and optocoupler LED drive
+0.075 %/°C TC	Enables <±1% total V_Z drift over –40°C to +125°C - suitable for automotive-grade power monitors
JEDEC-qualified reliability	Qualified to AEC-Q101 (HBM 8 kV, MM 400 V) - robust against ESD in automated assembly and end-use environments

Applications

Switch-Mode Power Supply Feedback

Overvoltage Protection Circuit

Use Scenario: Regulating 12 V output in isolated flyback converter via optocoupler-coupled feedback loop.

IC Role / Device Role / Timing Role: Dual Zener provides matched reference for TL431 error amplifier and secondary-side overvoltage latch.

Use Value: Common-anode topology simplifies PCB routing while matched V_Z ensures coordinated trip thresholds for regulation and protection.

Use Scenario: Clamping input voltage to protect MCU GPIO pins during hot-swap events on 12 V bus.

IC Role / Device Role / Timing Role: One Zener clamps positive transients; the other handles negative excursions in bidirectional TVS-like configuration.

Use Value: 20 Ω Z_ZT limits clamping voltage overshoot to <13.5 V at 10 mA - within absolute maximum rating of 3.3 V I/O.

Battery Management System Reference

Industrial Sensor Signal Conditioning

Use Scenario: Generating stable 12 V reference for ADC reference buffer and charge controller comparator.

IC Role / Device Role / Timing Role: Dual Zener supplies primary reference and redundant backup reference with thermal tracking.

Use Value: ≤5% V_Z matching ensures <0.6 V offset between references - adequate for fault-detection margin in ISO 26262 ASIL-B designs.

Use Scenario: Level-shifting and protecting 4–20 mA transmitter output against 24 V field wiring faults.

IC Role / Device Role / Timing Role: Zeners clamp output to ±12 V during surge events while preserving analog linearity below threshold.

Use Value: 300 mW rating sustains 100 ms surge at 25 mA - exceeds IEC 61000-4-4 Level 3 requirements for industrial transmitters.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
BZX84-C12LT1G	Single Zener, SOT23, 12 V ±5%, 350 mW, 30 Ω Z_ZT	Requires two devices for dual-reference function; no V_Z matching	Select when only one reference is needed or board space allows discrete placement
DZ23C12-7-F	Dual common-cathode Zener, same V_Z range, 200 mW per diode, 25 Ω Z_ZT	Inverts polarity logic - cathodes shared instead of anodes; requires circuit redesign	Choose for legacy designs already using DZ23 footprint or when common-cathode biasing is preferred

Compared with BZX84-C12LT1G and DZ23C12-7-F, AZ23C12-7-F uniquely delivers matched dual-references in a single common-anode package - reducing component count and improving thermal tracking in feedback and protection circuits where coordinated voltage thresholds are essential.

Availability

AZ23C12-7-F is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, and medical sensor interfaces requiring stable component supply with full traceability and long-term lifecycle support.

Supply support for AZ23C12-7-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.

AZ23C12-7-F belongs to the AZ23 series of dual Zener diodes designed specifically for space-constrained voltage regulation and protection applications where matched performance and JEDEC-qualified robustness are mandatory.

FAQ

What is the maximum continuous Zener current for AZ23C12-7-F at 25°C ambient?

At 25°C ambient and with recommended PCB pad layout, the device supports up to 25 mA total current (sum of both diodes) before reaching its 300 mW power limit. Derating begins above 85°C ambient per the published power derating curve - at 125°C, maximum current drops to ~12 mA.

Can AZ23C12-7-F be used as a single 12 V Zener by leaving one cathode unconnected?

Yes - either cathode (Pin 2 or Pin 3) may be used independently while the other remains open. The unused cathode exhibits <0.1 µA leakage at 9 V, introducing negligible error in high-impedance reference circuits. Thermal coupling remains beneficial even with single-diode operation.

Is AZ23C12-7-F qualified for automotive applications?

The commercial-grade AZ23C12-7-F is not AEC-Q200 qualified. For automotive use, Diodes offers the Q-suffix variant AZ23C12Q-7-F, which is AEC-Q101 qualified, PPAP-capable, and manufactured in IATF 16949-certified facilities - available through Aetrix Electronics' automotive program.

How does the common-anode configuration affect PCB layout versus discrete Zeners?

The common-anode structure reduces netlist connections by one per Zener pair and places both cathodes on opposite sides of the package (Pins 2 and 3), enabling symmetrical routing to separate regulation and protection paths. This eliminates the need for a shared ground trace between two discrete devices, lowering parasitic inductance in fast transient response circuits.

AZ23C12-7-F Specifications

Product attributes: Attribute value

Manufacturer:: Diodes Incorporated

Series:: -

Package/Case:: TO-236-3, SC-59, SOT-23-3

Packaging:: Tape & Reel (TR)

Product Status:: Active

Configuration:: 1 Pair Common Anode

Voltage - Zener (Nom) (Vz):: 12 V

Tolerance:: ±5%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 20 Ohms

Current - Reverse Leakage @ Vr:: -

Voltage - Forward (Vf) (Max) @ If:: -

Operating Temperature:: -65°C ~ 150°C

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: SOT-23-3

AZ23C12-7-F FAQ

1.How can I place an order for AZ23C12-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for AZ23C12-7-F on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AZ23C12-7-F reliable?

The price and inventory of AZ23C12-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ23C12-7-F is usually 5 days.

3.What payment methods are accepted for AZ23C12-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ23C12-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AZ23C12-7-F?

AZ23C12-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AZ23C12-7-F order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AZ23C12-7-F?

For technical support, including AZ23C12-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ23C12-7-F requirements.

6.How does Aetrix verify that AZ23C12-7-F is sourced from the original manufacturer or authorized distributors?

All AZ23C12-7-F products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AZ23C12-7-F meets industry standards.

7.What is the process for return or replacement of AZ23C12-7-F?

All AZ23C12-7-F units undergo pre-shipment inspection (PSI). If there is an issue with AZ23C12-7-F, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AZ23C12-7-F part is unused and in its original packaging.

Return procedure for AZ23C12-7-F:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…

2026-08-11 LDO Regulator: Dropout Voltage, Noise, PSRR and Power Dissipation

LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…

2026-08-06 Conditional Access Module: CAM, CI/CI+ and DVB Security

Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…

2026-08-03 Electronic Component Obsolescence: EOL Risks, Replacement Options and Last-Time Buy Strategy

Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.

2026-07-29 18650 Battery: Voltage, Capacity, Charging and Pack Design

18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…

2026-07-27 Hall Effect Sensor: Working Principle, Types, Circuits and Applications

Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…

2026-07-20 Product Change Notification (PCN) in Electronic Components: Meaning and Supply Chain Response

Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…

2026-07-19 Blend Door Actuator: Symptoms, Location, Reset and Replacement Guide

A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…