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Diodes Incorporated AZ23C3V3-7
- Part No.:
- AZ23C3V3-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AZ23C3V3-7.pdf
- Description:
- DIODE ZENER ARRAY 3.3V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:8,638
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Product details
Overview
AZ23C3V3-7 from Diodes Incorporated is a dual common-anode 300mW surface-mount Zener diode with nominal zener voltage 3.3V (3.1–3.5V range), ±5% matching between diodes, and 95Ω typical zener impedance at 5mA. It operates from −65°C to +150°C and is used for precision voltage reference and overvoltage protection in compact power rails.
For engineers reviewing the AZ23C3V3-7 datasheet, AZ23C3V3-7 pinout, AZ23C3V3-7 application, or AZ23C3V3-7 equivalent, key selection criteria include dual-zener matching tolerance, SOT23 thermal resistance (417°C/W), JEDEC-qualified reliability, and automotive-grade availability via Q-suffix variants.
Technical Context
This dual Zener implements two independent 3.3V regulation paths sharing a common anode terminal, enabling bidirectional clamping or dual-rail referencing in space-constrained layouts. Its matched VZ deviation ≤5% supports differential sensing and rail-to-rail voltage monitoring.
The device meets AEC-Q101 stress testing (HBM 8kV, MM 400V) and IEC 61000-4-2 ESD immunity (air 15kV, contact 8kV), with thermal derating defined per J-STD-020 Level 1 moisture sensitivity and FR-4 board layout guidance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 3.1–3.5 V at 5 mA - ensures stable 3.3V reference under production tolerances |
| Max Power Dissipation | 300 mW - supports continuous operation at 5 mA without heatsinking on standard PCB |
| Zener Impedance | 95 Ω at 5 mA - low dynamic resistance enables tight regulation under load transients |
| Temp Coefficient | −0.055 %/°C - negative drift compensates for positive TC of downstream circuitry |
| Operating Temp | −65°C to +150°C - qualified for under-hood automotive and industrial ambient extremes |
| ESD Rating | HBM 8 kV / Contact 8 kV - withstands handling and system-level electrostatic discharge events |
Pinout & Package
Package: SOT23 - surface-mount plastic package with matte tin finish, 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 ground or low-side reference point |
| Cathode A (Pin 2) | Zener A Cathode | First 3.3V regulation path; reverse-biased to clamp or reference against common anode |
| Cathode B (Pin 3) | Zener B Cathode | Second 3.3V regulation path; enables dual-rail monitoring or redundancy without extra footprint |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zener Matching | ΔVZ ≤5% between diodes - eliminates need for external trimming in matched reference designs |
| Automated Insertion Suitability | SOT23 footprint with JEDEC-compliant pad layout - compatible with high-speed pick-and-place and reflow processes |
| Green Compliance | Halogen-free, antimony-free, RoHS 3 compliant - meets global environmental regulations without performance trade-offs |
| Thermal Performance | RθJA = 417°C/W on FR-4 - enables full 300mW dissipation with minimal board area |
Applications
| USB Power Rail Protection | Industrial Sensor Reference |
|---|---|
Use Scenario: Clamping 3.3V USB VBUS during hot-plug transients and ESD events. IC Role / Device Role / Timing Role: Dual-Zener acts as bidirectional overvoltage clamp across VBUS and GND, leveraging common-anode topology for symmetrical protection. Use Value: Prevents damage to USB PHY ICs by limiting excursion to ±3.5V while maintaining <5% matching for repeatable trip thresholds. |
Use Scenario: Providing stable 3.3V reference for 12-bit ADCs in temperature- and vibration-sensitive factory sensors. IC Role / Device Role / Timing Role: Dual Zener supplies matched reference voltage and internal bias current path for analog front-end conditioning. Use Value: −0.055%/°C TC and 95Ω ZZT reduce measurement drift to <0.5 LSB over −40°C to +85°C operating range. |
| Automotive Body Control Module | Low-Power IoT Node Regulation |
Use Scenario: Regulating auxiliary 3.3V supply for LIN transceivers and microcontroller peripherals in BCMs. IC Role / Device Role / Timing Role: Common-anode dual Zener serves as primary voltage supervisor and backup reference during battery brownouts. Use Value: AEC-Q101 qualification and −65°C to +150°C operation ensure functional safety compliance without derating. |
Use Scenario: Generating precise 3.3V bias for BLE SoCs and MEMS accelerometers in battery-powered edge nodes. IC Role / Device Role / Timing Role: Dual Zener provides low-quiescent regulation path and enables self-test via matched diode comparison. Use Value: 300mW rating supports 5mA continuous draw; SOT23 footprint saves >40% board area vs. discrete dual-Zener solutions. |
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-C3V3 | Single Zener, same 3.3V rating and SOT23 package, but no dual configuration or matching spec | Requires two devices and external matching verification for dual-rail use | Select when only one regulated node is needed or board layout allows discrete placement |
| DZ23C3V3 | Common-cathode dual Zener (vs. AZ23's common-anode); identical VZ, PD, and thermal specs | Requires inverted PCB routing - anode tied to supply instead of ground | Choose when existing schematic uses common-cathode topology or shares bias with other cathode-referenced devices |
Compared with BZX84-C3V3 and DZ23C3V3, AZ23C3V3-7 uniquely delivers matched dual 3.3V regulation from a single common-anode node-reducing component count, improving layout symmetry, and eliminating inter-device VZ variation in critical reference paths.
Availability
AZ23C3V3-7 is available at Aetrix Electronics and suitable for USB power protection, industrial sensor reference, automotive body control modules, and low-power IoT node regulation requiring stable component supply across commercial and automotive-grade demand cycles.
Supply support for AZ23C3V3-7 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 semiconductor company specializing in discrete, analog, and mixed-signal components, with manufacturing certified to IATF 16949 and quality systems aligned with AEC-Q standards.
AZ23C3V3-7 belongs to the AZ23 series of dual Zener diodes engineered for high-reliability voltage reference and protection in automotive, industrial, and consumer power management systems.
FAQ
What is the maximum reverse current (IZK) specification for AZ23C3V3-7?
AZ23C3V3-7 specifies IZK = 1.0 mA with corresponding Zener impedance ZZK ≤ 500 Ω. This defines the minimum test current required to achieve stable breakdown behavior and is used for low-current regulation validation in standby or sleep-mode circuits.
Does AZ23C3V3-7 support automotive qualification out of the box?
No - the standard AZ23C3V3-7 is commercial-grade. Automotive qualification requires the Q-suffix variant (e.g., AZ23C3V3Q-7-F), which undergoes AEC-Q101 stress testing, PPAP documentation, and is manufactured in IATF 16949-certified facilities.
How does the common-anode configuration affect PCB layout compared to common-cathode dual Zeners?
In common-anode layout, both cathodes route separately while the anode connects to ground or low-side potential - simplifying ground-plane routing and enabling direct connection to ADC reference inputs. Common-cathode variants require the shared cathode to tie to VCC, increasing trace length and noise coupling risk in mixed-signal designs.
Can AZ23C3V3-7 be used for ESD protection in USB 2.0 data lines?
No - AZ23C3V3-7 is not optimized for high-speed signal line protection. Its capacitance (~30 pF at 1V) exceeds USB 2.0 eye-diagram requirements, and its 3.3V VZ lacks the fast turn-on needed for data-line transient suppression. Dedicated USB ESD arrays (e.g., D3V3F1U2) are recommended instead.
AZ23C3V3-7 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:
- Discontinued at Digi-Key
- Configuration:
- 1 Pair Common Anode
- Voltage - Zener (Nom) (Vz):
- 3.3 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 95 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
AZ23C3V3-7 FAQ
1.How can I place an order for AZ23C3V3-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ23C3V3-7 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 AZ23C3V3-7 reliable?
The price and inventory of AZ23C3V3-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ23C3V3-7 is usually 5 days.
3.What payment methods are accepted for AZ23C3V3-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ23C3V3-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ23C3V3-7?
AZ23C3V3-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ23C3V3-7 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 AZ23C3V3-7?
For technical support, including AZ23C3V3-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ23C3V3-7 requirements.
6.How does Aetrix verify that AZ23C3V3-7 is sourced from the original manufacturer or authorized distributors?
All AZ23C3V3-7 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 AZ23C3V3-7 meets industry standards.
7.What is the process for return or replacement of AZ23C3V3-7?
All AZ23C3V3-7 units undergo pre-shipment inspection (PSI). If there is an issue with AZ23C3V3-7, 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 AZ23C3V3-7 part is unused and in its original packaging.
Return procedure for AZ23C3V3-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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