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Diodes Incorporated AZ23C30-7
- Part No.:
- AZ23C30-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AZ23C30-7.pdf
- Description:
- DIODE ZENER ARRAY 30V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,820
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Product details
Overview
AZ23C30-7 from Diodes Incorporated is a dual common-anode 300 mW surface-mount Zener diode with nominal Zener voltage 30 V (28–32 V range), maximum Zener impedance 80 Ω at 5 mA, and temperature coefficient +0.090 %/°C - used for precision voltage reference and overvoltage protection in power supply feedback loops.
For engineers reviewing the AZ23C30-7 datasheet, AZ23C30-7 pinout, AZ23C30-7 application, or AZ23C30-7 equivalent, key selection criteria include dual-Zener matching (ΔVZ ≤ 5%), SOT23 package thermal resistance (417 °C/W), JEDEC-qualified reliability, and automotive-grade availability via Q-suffix variants.
Technical Context
This dual Zener operates in reverse breakdown mode with two independently rated junctions sharing a common anode terminal. Each diode is characterized at IZT = 5.0 mA (typical test current) and exhibits matched voltage tolerance within ±5% across the pair.
Thermal derating follows a linear curve down to zero power at +150 °C ambient, with RθJA = 417 °C/W on FR-4 PCB using recommended pad layout. It meets AEC-Q101 for HBM ESD (8 kV) and IEC 61000-4-2 (air: 15 kV, contact: 8 kV).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 28 V to 32 V - defines operating window for stable regulation under varying load/temperature |
| Power Dissipation | 300 mW - maximum continuous DC power at TA = 25 °C before thermal shutdown risk |
| Zener Impedance | 80 Ω @ IZT = 5 mA - low dynamic resistance ensures minimal output voltage variation with current changes |
| Temperature Coefficient | +0.090 %/°C - positive drift enables compensation in series configurations with negative-coefficient devices |
| Min. Reverse Voltage | 22.5 V @ IR = 0.1 µA - guarantees reliable blocking below regulation threshold |
| Package | SOT23 - compact 3-pin surface-mount outline enabling high-density PCB layouts and automated assembly |
Pinout & Package
Package: SOT23 - molded plastic, green compound (UL 94V-0), matte tin-plated terminals, 0.008 g weight, moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode of Zener 1 | Primary regulated output node; connects to feedback path in switching regulator error amplifier |
| Pin 2 | Anode (Common) | Shared reference node; ties both Zeners to ground or bias rail in dual-reference topologies |
| Pin 3 | Cathode of Zener 2 | Secondary regulated output; enables differential or redundant voltage monitoring schemes |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zener Matching | ΔVZ ≤ 5% between cathodes - supports balanced clamping or ratiometric reference generation |
| JEDEC High Reliability | Qualified per AEC-Q101 - validated for automotive under-hood environments and industrial long-life deployments |
| Lead-Free & Green | Halogen- and antimony-free (<900 ppm Br/Cl, <1000 ppm Sb) - compliant with RoHS 3 and IATF 16949 manufacturing |
| Automated Insertion Ready | SOT23 footprint with standardized tape-and-reel packaging (3,000 pcs/reel) - compatible with high-speed pick-and-place systems |
Applications
| Switching Power Supply Feedback | Overvoltage Protection Circuit |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters via optocoupler-coupled feedback loop. IC Role / Device Role / Timing Role: Dual Zener provides precise 30 V reference at secondary-side error amplifier input. Use Value: Tight 28–32 V tolerance and low 80 Ω ZZT minimize output drift across line/load/temperature. |
Use Scenario: Clamping transient surges on 24 V industrial control bus lines during ESD or inductive kick events. IC Role / Device Role / Timing Role: Common-anode configuration allows bidirectional clamping between bus and ground using single device. Use Value: Matched dual Zeners ensure symmetrical clamping thresholds and reduce component count vs. discrete diode pairs. |
| Redundant Reference Generator | Temperature-Compensated Bias Network |
Use Scenario: Providing backup reference voltage in safety-critical PLC analog input modules. IC Role / Device Role / Timing Role: One Zener serves primary reference; second acts as diagnostic monitor with independent sensing path. Use Value: ΔVZ ≤ 5% enables fault detection when deviation exceeds threshold without external comparator. |
Use Scenario: Stabilizing bias current in high-precision op-amp front-end stages operating from wide-temperature-range supplies. IC Role / Device Role / Timing Role: Paired with negative-TC component (e.g., silicon diode) to cancel thermal drift in reference string. Use Value: +0.090 %/°C TC enables predictable compensation slope matching typical NTC diode characteristics. |
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-C30LT1G | Single Zener (30 V), SOT23, 350 mW rating, 80 Ω ZZT, +0.085 %/°C TC | Lacks dual-element matching; requires two devices for common-anode topology | Select when only one regulated rail is needed and board space permits duplication |
| DZ23C30-7-F | Common-cathode dual Zener (30 V), same SOT23 package, identical electrical specs except polarity reversal | Requires inverted PCB layout and reversed feedback connections in existing designs | Choose for legacy common-cathode system compatibility or where anode referencing is impractical |
Compared with BZX84-C30LT1G and DZ23C30-7-F, AZ23C30-7 uniquely delivers matched dual Zeners in common-anode configuration - reducing component count and improving tracking in multi-rail or differential sensing applications without layout redesign.
Availability
AZ23C30-7 is available at Aetrix Electronics and suitable for switching power supplies, industrial overvoltage protection circuits, redundant reference generators, and temperature-compensated bias networks requiring stable component supply and JEDEC-qualified reliability.
Supply support for AZ23C30-7 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.
AZ23C30-7 belongs to the AZ23C-series dual Zener family, engineered specifically for high-reliability voltage regulation and protection in space-constrained, thermally demanding applications including automotive power systems and industrial controls.
FAQ
What is the maximum reverse current specification for AZ23C30-7 at 22.5 V?
The minimum reverse voltage is specified as 22.5 V at IR = 0.1 µA - meaning leakage remains ≤ 0.1 µA up to that voltage. Beyond 22.5 V, the device enters breakdown and conducts significantly higher current, with nominal regulation beginning near 28 V.
Can AZ23C30-7 be used in place of a single 30 V Zener diode?
Yes - Pin 1 and Pin 2 (or Pin 3 and Pin 2) form a functional 30 V Zener pair. However, using only one junction forfeits the matched dual-Zener advantage and leaves the unused cathode floating, which is electrically permissible but underutilizes the device's core feature.
Is there an automotive-qualified version of AZ23C30-7?
Yes - the automotive-grade variant is AZ23C30Q-7-F, qualified to AEC-Q101, manufactured in IATF 16949-certified facilities, and supported with PPAP documentation. It shares identical electrical and thermal specifications with the commercial version.
How does the +0.090 %/°C temperature coefficient affect long-term stability?
At +0.090 %/°C, output voltage shifts +27 mV/°C around 30 V - e.g., +2.7 V over a 100 °C range. This predictable drift enables intentional compensation using negative-TC components, unlike uncharacterized or zero-TC references that may exhibit nonlinear behavior.
AZ23C30-7 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):
- 30 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 80 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
AZ23C30-7 FAQ
1.How can I place an order for AZ23C30-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ23C30-7 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 AZ23C30-7 reliable?
The price and inventory of AZ23C30-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ23C30-7 is usually 5 days.
3.What payment methods are accepted for AZ23C30-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ23C30-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ23C30-7?
AZ23C30-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ23C30-7 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 AZ23C30-7?
For technical support, including AZ23C30-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ23C30-7 requirements.
6.How does Aetrix verify that AZ23C30-7 is sourced from the original manufacturer or authorized distributors?
All AZ23C30-7 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 AZ23C30-7 meets industry standards.
7.What is the process for return or replacement of AZ23C30-7?
All AZ23C30-7 units undergo pre-shipment inspection (PSI). If there is an issue with AZ23C30-7, 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 AZ23C30-7 part is unused and in its original packaging.
Return procedure for AZ23C30-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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