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

Diodes Incorporated AZ23C16-7-F

Name: AZ23C16-7-F
Brand: Diodes Incorporated
SKU: AZ23C16-7-F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AZ23C16-7-F

Manufacturer:: Diodes Incorporated

Category:: Zener Diode Arrays

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

Datasheet:: AZ23C16-7-F.pdf

Description:: DIODE ZENER ARRAY 16V SOT23-3

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Product details

Overview

AZ23C16-7-F from Diodes Incorporated is a dual common-anode 300 mW surface-mount Zener diode with nominal Zener voltage 16 V (15.3–17.1 V range), ±5% matching between diodes, and 40 Ω maximum Zener impedance at 5 mA. It operates from –65 °C to +150 °C and is used for precision voltage reference and overvoltage protection in power supply feedback loops.

For engineers reviewing the AZ23C16-7-F datasheet, AZ23C16-7-F pinout, AZ23C16-7-F application, or AZ23C16-7-F equivalent, key selection criteria include matched dual-Zener tolerance, thermal resistance (417 °C/W), SOT23 package compatibility, and automotive-grade qualification path via Q-suffix variants.

Technical Context

This device integrates two Zener diodes sharing a common anode terminal in a single SOT23 package, enabling compact dual-reference or bidirectional clamping configurations. Its 300 mW power rating and 417 °C/W junction-to-ambient thermal resistance require careful PCB pad layout per Diodes' recommended footprint.

The Zener voltage exhibits +0.090 %/°C temperature coefficient and maintains ≤5% inter-diode ΔV_Z, supporting stable dual-rail regulation. Reverse leakage remains ≤0.1 µA at 12 V, and total capacitance is <2 pF at 1 V bias - critical for low-noise analog references.

Key Specifications

Parameter	Value and Actual Design Meaning
Zener Voltage Range	15.3 V to 17.1 V at I_ZT = 5 mA - defines usable regulation window under standard test conditions
Max Zener Impedance	40 Ω at I_ZT = 5 mA - limits output voltage variation under load current changes
Power Dissipation	300 mW - sets absolute maximum steady-state power handling on FR-4 board with recommended pads
Temp Coefficient	+0.090 %/°C - quantifies voltage drift magnitude per degree Celsius rise above 25 °C
Min Reverse Voltage	12.0 V at I_R = 0.1 µA - indicates onset of measurable leakage before breakdown
Operating Temp	–65 °C to +150 °C - supports industrial and under-hood automotive environments without derating

Pinout & Package

Package: SOT23 - surface-mount plastic package with 3 terminals, 0.008 g mass, UL 94V-0 rated molding compound, and matte tin-plated alloy 42 leadframe.

Pin/Terminal	Circuit Role	Design Meaning
Pin 1 (Anode)	Common Anode	Shared cathode connection point for both Zener diodes - ties to lowest potential node in dual-reference design
Pin 2 (Cathode A)	Zener Diode A Cathode	First Zener cathode - connects to regulated rail or clamping node requiring 16 V reference
Pin 3 (Cathode B)	Zener Diode B Cathode	Second Zener cathode - enables independent 16 V reference or complementary clamping path

Key Features

Feature	Design Value
Dual Zeners, Common Anode	Enables space-constrained dual-voltage reference or symmetrical clamping without discrete pairing
≤5% ΔV_Z Matching	Ensures consistent regulation across both diodes - critical for differential sensing or redundancy schemes
300 mW Power Rating	Supports moderate-current shunt regulation while maintaining thermal stability on standard PCBs
AEC-Q101 Qualified Path	Q-suffix variants available for automotive use - qualified to HBM ESD 8 kV and IEC 61000-4-2 contact 8 kV
Halogen & Antimony Free	Meets "Green" definition (<900 ppm Br, <900 ppm Cl, <1000 ppm Sb) for RoHS 3 and environmental compliance

Applications

Switch-Mode Power Supply Feedback

Industrial Sensor Signal Conditioning

Use Scenario: Regulating isolated DC-DC converter output via optocoupler feedback network.

IC Role / Device Role / Timing Role: Dual Zener provides precise 16 V reference for TL431-like comparator input and overvoltage clamp on secondary side.

Use Value: Matched ΔV_Z ensures consistent trip threshold across production units; SOT23 footprint saves board area vs. discrete dual-Zener solution.

Use Scenario: Stabilizing excitation voltage for bridge-based pressure transducers in factory automation systems.

IC Role / Device Role / Timing Role: Supplies clean, temperature-stable 16 V bias to sensor Wheatstone bridge while clamping ESD transients on signal lines.

Use Value: +0.090 %/°C TC minimizes measurement drift over –25 °C to +85 °C operating range; low 0.1 µA leakage avoids loading high-impedance sensor outputs.

Automotive Body Control Module

Programmable Logic Controller Input Protection

Use Scenario: Protecting microcontroller GPIO pins from load-dump transients in 12 V vehicle subsystems.

IC Role / Device Role / Timing Role: Dual Zener clamps positive and negative spikes relative to chassis ground using common-anode configuration.

Use Value: 300 mW rating handles short-duration pulses per ISO 7637-2; AEC-Q101-qualified variants support PPAP-compliant designs.

Use Scenario: Safeguarding 24 V digital input channels against field-wiring faults and induced surges in industrial PLC racks.

IC Role / Device Role / Timing Role: Acts as bidirectional transient voltage suppressor between input line and logic ground, leveraging dual-cathode topology.

Use Value: 40 Ω Z_ZT ensures fast response to >12 V transients; SOT23 allows automated placement alongside other protection components.

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-C16LT1G	Single Zener in SOT23; no dual-element or matching spec; 40 Ω Z_ZT, same 16 V nominal	Requires two devices for dual-reference use; lacks inter-diode matching guarantee	Select when only one 16 V reference is needed and board space permits discrete placement
DZ23C16-7-F	Common-cathode dual Zener (vs. AZ23's common-anode); identical V_Z range and power rating	Inverts polarity of reference/clamp configuration - cathodes tied together instead of anodes	Choose when circuit topology requires shared cathode node, e.g., grounded-cathode regulator designs

Compared with BZX84-C16LT1G and DZ23C16-7-F, AZ23C16-7-F uniquely delivers matched dual-Zener performance in a common-anode topology - essential for differential references and compact bidirectional clamping where anode-referenced biasing is required.

Availability

AZ23C16-7-F is available at Aetrix Electronics and suitable for switch-mode power supply feedback, industrial sensor signal conditioning, and automotive body control module designs requiring stable component supply and JEDEC-qualified reliability.

Supply support for AZ23C16-7-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.

AZ23C16-7-F belongs to the AZ23 series of dual Zener diodes engineered for high-reliability voltage reference and transient suppression in space-constrained industrial and automotive applications.

FAQ

What is the pin configuration for AZ23C16-7-F in SOT23?

Pin 1 is the common anode; Pin 2 is Cathode A; Pin 3 is Cathode B. This matches the standard SOT23 pinout defined in Diodes' package outline DS18003 Rev. 18-2, confirmed by top-view schematic and marking diagram on page 2 of the datasheet.

Does AZ23C16-7-F support automotive applications?

AZ23C16-7-F is commercial-grade, but its Q-suffix variant (AZ23C16Q-7-F) is AEC-Q101 qualified, manufactured in IATF 16949 facilities, and supports PPAP documentation. The base part shares identical electrical specs and thermal characteristics, enabling direct qualification path.

How does the 5% ΔV_Z matching impact circuit performance?

The ≤5% voltage difference between the two Zeners ensures predictable behavior in dual-rail references or differential clamping. For example, in a feedback divider with matched diodes, output regulation error stays within ±2.5% across temperature and unit variance - critical for closed-loop stability.

What is the maximum continuous reverse current before breakdown?

At 12.0 V reverse bias (the specified minimum reverse voltage), leakage current is guaranteed ≤0.1 µA. Breakdown begins within the 15.3–17.1 V range at I_ZT = 5 mA; operation below 12 V ensures negligible conduction in non-regulating states.

AZ23C16-7-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):: 16 V

Tolerance:: ±5%

Power - Max:: 300 mW

Impedance (Max) (Zzt):: 40 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

AZ23C16-7-F FAQ

1.How can I place an order for AZ23C16-7-F through Aetrix?

Please submit a Request for Quotation (RFQ) for AZ23C16-7-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 AZ23C16-7-F reliable?

The price and inventory of AZ23C16-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ23C16-7-F is usually 5 days.

3.What payment methods are accepted for AZ23C16-7-F?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ23C16-7-F transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AZ23C16-7-F?

AZ23C16-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AZ23C16-7-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 AZ23C16-7-F?

For technical support, including AZ23C16-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ23C16-7-F requirements.

6.How does Aetrix verify that AZ23C16-7-F is sourced from the original manufacturer or authorized distributors?

All AZ23C16-7-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 AZ23C16-7-F meets industry standards.

7.What is the process for return or replacement of AZ23C16-7-F?

All AZ23C16-7-F units undergo pre-shipment inspection (PSI). If there is an issue with AZ23C16-7-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 AZ23C16-7-F part is unused and in its original packaging.

Return procedure for AZ23C16-7-F:

1.Submit a request within 90 days.

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

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