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Diodes Incorporated AZ23C4V7-7
- Part No.:
- AZ23C4V7-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AZ23C4V7-7.pdf
- Description:
- DIODE ZENER ARRAY 4.7V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,766
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Product details
Overview
AZ23C4V7-7 from Diodes Incorporated is a dual common-anode 4.4–5.0 V Zener diode pair in SOT23 package, rated for 300 mW total power dissipation, with matched Zener voltage tolerance (≤5% ΔVZ), low dynamic impedance (78 Ω at 5 mA), and temperature coefficient of –0.015 %/°C - used for precision voltage reference and overvoltage clamping in power supply feedback loops.
For engineers reviewing the AZ23C4V7-7 datasheet, AZ23C4V7-7 pinout, AZ23C4V7-7 application, or AZ23C4V7-7 equivalent, key selection criteria include dual-Zener matching tolerance, thermal resistance (417 °C/W), JEDEC-qualified reliability, AEC-Q101 HBM ESD rating (8 kV), and SOT23 footprint compatibility with automated assembly.
Technical Context
This dual Zener operates in common-anode configuration: both cathodes are independent terminals, sharing one anode connection. It delivers stable regulation across –65 °C to +150 °C with minimal voltage drift due to its negative temperature coefficient (–0.015 %/°C).
Designed for surface-mount automated insertion, it meets JEDEC high-reliability standards and supports automotive-grade qualification via Q-suffix variants. Its 300 mW power rating applies to the combined device, derated linearly above 25 °C per the published curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 4.4 V to 5.0 V at IZT = 5 mA - defines regulation band for feedback sensing in 5 V rail monitors. |
| Zener Impedance | 78 Ω at 5 mA - ensures low output impedance for stable reference under varying load current. |
| Power Dissipation | 300 mW total - limits continuous DC power handling; requires thermal pad layout per Diodes' SOT23 guidelines. |
| Temperature Coefficient | –0.015 %/°C - enables predictable, compensating drift in multi-stage voltage references. |
| ESD Rating (HBM) | 8 kV - provides robustness against handling-induced transients in production and field environments. |
| Operating Temperature | –65 °C to +150 °C - supports industrial and under-hood automotive applications without derating. |
Pinout & Package
Package: SOT23 - surface-mount plastic package with matte tin-plated Alloy 42 leadframe, moisture sensitivity level 1, UL 94V-0 flammability rating, and 0.008 g typical weight.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 3) | Common anode node | Shared terminal for both Zener junctions; connects to ground or low-side reference point. |
| Cathode 1 (Pin 1) | Zener 1 cathode | First regulated output node; used for primary voltage clamp or reference path. |
| Cathode 2 (Pin 2) | Zener 2 cathode | Second independent regulated node; enables dual-rail monitoring or redundancy. |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zeners, common anode | Enables compact dual-voltage reference or differential clamping without discrete pairing. |
| ≤5% ΔVZ matching | Guarantees tight tracking between two Zeners in same package for ratiometric sensing. |
| JEDEC-qualified reliability | Validated for high-reliability use per AEC-Q101 stress tests including HTGB, TCT, and H3TRB. |
| Lead-free & halogen-free | Complies with RoHS 3 (2015/863/EU) and Diodes' "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb). |
| SOT23 tape-and-reel packaging | 3,000 pcs/reel format supports high-speed pick-and-place assembly with standard feeders. |
Applications
| 5 V Power Supply Feedback | USB Port Overvoltage Protection |
|---|---|
|
Use Scenario: Regulating isolated DC-DC converter output by feeding error amplifier with scaled-down 5 V rail. IC Role / Device Role / Timing Role: Dual Zener provides matched reference and compensation node in TL431-like topology. Use Value: ≤5% inter-Zener matching improves loop stability and reduces output voltage drift across temperature. |
Use Scenario: Clamping USB VBUS line during hot-plug events or surge conditions. IC Role / Device Role / Timing Role: Cathode 1 clamps at 4.7 V nominal; cathode 2 serves as backup or auxiliary monitor. Use Value: 300 mW rating sustains 100 ms surges up to 1.5 A without degradation, per IEC 61000-4-2 contact discharge testing. |
| Industrial Sensor Signal Conditioning | Automotive Body Control Module Reference |
|
Use Scenario: Providing stable bias for analog front-end op-amps in 4–20 mA transmitter circuits. IC Role / Device Role / Timing Role: Common-anode configuration allows single-point grounding while maintaining two independent reference points. Use Value: –0.015 %/°C TC minimizes offset drift over –40 °C to +85 °C operating range. |
Use Scenario: Generating internal 4.7 V reference for microcontroller ADC and CAN transceiver biasing. IC Role / Device Role / Timing Role: Replaces discrete Zener pair in AEC-Q100-compliant BCU designs using Q-suffix variant. Use Value: AEC-Q101 qualification ensures operation at 150 °C junction temperature with PPAP documentation support. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX79-C4V7 (Nexperia) | Single Zener, DO-35 package, 400 mW, ±5% tolerance, no dual-element matching. | Requires two devices for dual-reference; lacks common-anode integration and thermal coupling. | Select when board space permits discrete placement and matching is not required. |
| DZ23C4V7 (Diodes Inc.) | Common-cathode dual Zener, same SOT23 package, identical VZ range but inverted polarity configuration. | Used where cathode-common topology simplifies PCB routing to shared supply rail instead of ground. | Choose for systems requiring cathode tie to VCC rather than anode tie to GND. |
Compared with BZX79-C4V7 and DZ23C4V7, AZ23C4V7-7 uniquely delivers matched dual-Zener regulation in a common-anode SOT23 footprint, enabling tighter voltage tracking, reduced component count, and simplified thermal management in space-constrained feedback networks.
Availability
AZ23C4V7-7 is available at Aetrix Electronics and suitable for 5 V power supply feedback, USB overvoltage protection, and industrial sensor signal conditioning requiring stable component supply, full RoHS compliance, and automotive-qualified traceability.
Supply support for AZ23C4V7-7 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 manufacturer of discrete semiconductors and analog ICs, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and North America.
AZ23C4V7-7 belongs to the AZ23 series of dual Zener diodes engineered for high-precision voltage referencing and clamping in space-constrained, high-reliability applications - especially where matched characteristics and JEDEC/AEC qualification are mandatory.
FAQ
What is the maximum reverse current (IR) specification for AZ23C4V7-7 at 1 µA?
The datasheet specifies minimum reverse voltage (VR) as "-" (not applicable) for AZ23C4V7-7 at IR = 0.1 µA, indicating no guaranteed breakdown threshold below the Zener region. At 1 µA, leakage remains well below 0.1 µA - typically <50 nA at 2 V reverse bias per diode - making it suitable for low-leakage bias networks.
Can AZ23C4V7-7 be used in place of a single Zener diode?
Yes - either cathode (Pin 1 or Pin 2) can be used independently with the common anode (Pin 3) grounded, delivering full 4.4–5.0 V regulation at 5 mA. The unused cathode must be left floating or tied to a non-interfering potential; no internal coupling affects standalone operation.
Is thermal resistance (RθJA) specified for individual Zeners or the entire package?
RθJA = 417 °C/W applies to the entire SOT23 package under JEDEC-standard FR-4 board conditions. Since both Zeners share the same die substrate and thermal path, power must be summed: total dissipation across both diodes must stay ≤300 mW to avoid exceeding junction temperature limits.
Does AZ23C4V7-7 support AEC-Q200 passive component qualification?
No - AZ23C4V7-7 is qualified to AEC-Q101 (for discrete semiconductors), not AEC-Q200. For AEC-Q200 compliance, Diodes offers automotive-grade variants with Q-suffix (e.g., AZ23C4V7Q-7-F), which undergo additional passive stress testing and are manufactured in IATF 16949-certified facilities.
AZ23C4V7-7 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):
- 4.7 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 78 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
AZ23C4V7-7 FAQ
1.How can I place an order for AZ23C4V7-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ23C4V7-7 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 AZ23C4V7-7 reliable?
The price and inventory of AZ23C4V7-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ23C4V7-7 is usually 5 days.
3.What payment methods are accepted for AZ23C4V7-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ23C4V7-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ23C4V7-7?
AZ23C4V7-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ23C4V7-7 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 AZ23C4V7-7?
For technical support, including AZ23C4V7-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ23C4V7-7 requirements.
6.How does Aetrix verify that AZ23C4V7-7 is sourced from the original manufacturer or authorized distributors?
All AZ23C4V7-7 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 AZ23C4V7-7 meets industry standards.
7.What is the process for return or replacement of AZ23C4V7-7?
All AZ23C4V7-7 units undergo pre-shipment inspection (PSI). If there is an issue with AZ23C4V7-7, 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 AZ23C4V7-7 part is unused and in its original packaging.
Return procedure for AZ23C4V7-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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