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Diodes Incorporated AZ23C27Q-7-F
- Part No.:
- AZ23C27Q-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AZ23C27Q-7-F.pdf
- Description:
- ZENER DIODE SOT23 T&R 3K
- Quantity:
- Payment:
- Shipping:
Inventory:6,472
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Product details
Overview
AZ23C27Q-7-F from Diodes Incorporated is a dual common-anode Zener diode in SOT23 package, rated for 300 mW total power dissipation, with nominal Zener voltage 27 V (25.1–28.9 V range at 5 mA), ±0.09 %/°C temperature coefficient, and ≤5% inter-diode VZ matching. It provides precision voltage reference and overvoltage clamping in space-constrained automotive and industrial power rails.
For engineers reviewing the AZ23C27Q-7-F datasheet, AZ23C27Q-7-F pinout, AZ23C27Q-7-F application, or AZ23C27Q-7-F equivalent, key selection criteria include dual-Zener matching tolerance, automotive-grade AEC-Q101 qualification, SOT23 thermal resistance (417 °C/W), and low-capacitance clamping performance under transient conditions.
Technical Context
This dual Zener operates in common-anode configuration: both cathodes are independent terminals, sharing one anode connection. Each diode is characterized at IZT = 5 mA with Zener impedance ≤80 Ω and dynamic impedance ≤250 Ω at IZK = 1 mA.
It is qualified to AEC-Q101 with HBM ESD rating of 8 kV and meets IEC 61000-4-2 (air: 15 kV, contact: 8 kV). Thermal derating begins above 25 °C ambient, with full 300 mW dissipation only at TA ≤ 70 °C per JEDEC-compliant FR-4 layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 25.1–28.9 V at IZ = 5 mA - defines clamping threshold for 24 V system protection |
| Power Dissipation (PD) | 300 mW - limits continuous clamp energy in compact SOT23 footprint |
| Zener Impedance (ZZT) | ≤80 Ω at 5 mA - ensures stable regulation under moderate load variation |
| Temperature Coefficient | +0.09 %/°C - enables predictable VZ drift across –65 to +150 °C operating range |
| VZ Matching | ≤5% ΔVZ between diodes - supports matched dual-rail sensing or differential reference |
| ESD Rating | HBM 8 kV / MM 400 V - withstands handling and board-level electrostatic events |
Pinout & Package
Package: SOT23 - surface-mount plastic package with matte tin-plated Alloy 42 leadframe, moisture sensitivity level 1, UL 94V-0 rated.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode (common) | Shared anode node for both Zener diodes; connects to system ground or reference potential |
| Pin 2 | Cathode 1 | Independent cathode for first Zener; used for primary voltage clamp or reference output |
| Pin 3 | Cathode 2 | Independent cathode for second Zener; enables dual-rail monitoring or redundancy path |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zeners, common anode | Enables compact dual-voltage reference or bidirectional rail clamp without discrete pairing |
| AEC-Q101 qualified | Validated for automotive use including PPAP support and IATF 16949 manufacturing |
| ≤5% inter-diode VZ match | Supports precision differential sensing or matched overvoltage thresholds |
| Lead-free & halogen-free | Complies with RoHS 3 (2015/863/EU) and Diodes' "Green" definition (<900 ppm Br/Cl, <1000 ppm Sb) |
Applications
| Automotive Body Control Module | Industrial PLC Input Protection |
|---|---|
Use Scenario: Clamping transients on 24 V CAN bus power lines during load dump events. IC Role / Device Role / Timing Role: Dual-Zener voltage clamp protecting downstream LDOs and CAN transceivers. Use Value: Common-anode topology allows single-device protection of both VCC and bias rail with matched breakdown behavior. |
Use Scenario: Overvoltage suppression on analog input channels exposed to field wiring surges. IC Role / Device Role / Timing Role: Precision Zener reference and fast-clamp element in front-end signal conditioning. Use Value: ≤80 Ω ZZT ensures minimal voltage overshoot during 1 µs–10 µs transients per IEC 61000-4-4. |
| Telecom Power Sequencing | Medical Sensor Bias Supply |
Use Scenario: Generating matched reference voltages for dual-supply sequencing controllers in 48 V telecom systems. IC Role / Device Role / Timing Role: Dual Zener providing synchronized enable thresholds for primary and auxiliary rails. Use Value: ≤5% VZ matching eliminates timing skew between rail-up detection signals. |
Use Scenario: Stabilizing bias voltage for low-noise instrumentation amplifiers in portable diagnostic devices. IC Role / Device Role / Timing Role: Low-drift Zener reference (0.09 %/°C) for ultra-stable sensor excitation. Use Value: Tight TC and 300 mW rating allow direct PCB mounting near sensitive analog circuitry without thermal drift penalty. |
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-C27LT1G | Single Zener, SOT23, same VZ range but no dual configuration or VZ matching spec | Requires two devices for dual-rail use; no guaranteed inter-unit matching | Select when only one reference rail is needed and cost-per-Zener is prioritized |
| DZ23C27-7-F | Common-cathode dual Zener (vs. AZ23's common-anode); identical VZ, PD, and AEC-Q101 rating | Inverts PCB routing logic: cathodes tied, anodes separate - affects grounding strategy | Choose when system architecture requires shared cathode (e.g., high-side clamp to VIN) |
Compared with BZX84-C27LT1G and DZ23C27-7-F, AZ23C27Q-7-F uniquely delivers matched dual Zeners in common-anode topology with automotive qualification - enabling single-component solutions for differential rail monitoring and space-constrained clamp designs where anode-referenced topology simplifies layout.
Availability
AZ23C27Q-7-F is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC input stages, and telecom power sequencers requiring stable component supply with AEC-Q101 compliance and traceable sourcing.
Supply support for AZ23C27Q-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, headquartered in Plano, Texas, with design, manufacturing, and sales operations across Asia, Europe, and the Americas.
AZ23C27Q-7-F belongs to Diodes' AZ23 series of dual Zener diodes, engineered specifically for high-reliability automotive and industrial applications demanding matched voltage references and robust transient immunity in miniature SOT23 packages.
FAQ
What does the 'Q' suffix in AZ23C27Q-7-F signify?
The 'Q' suffix denotes automotive qualification per AEC-Q101, including stress testing for high-reliability operation, PPAP documentation readiness, and production in IATF 16949-certified facilities. It is not present in commercial-grade variants like AZ23C27-7-F.
Can AZ23C27Q-7-F replace a single Zener diode in a circuit?
Yes - Pin 1 (anode) and Pin 2 (cathode 1) form a fully functional 27 V Zener; Pin 3 remains unused. However, doing so forfeits the matched dual-diode benefit and occupies the same SOT23 footprint as a single-device solution.
Is thermal derating required for continuous operation at 85°C ambient?
Yes - at TA = 85 °C, maximum allowable power drops to approximately 210 mW based on the 417 °C/W RθJA and linear derating curve in DS18003 Rev. 18-2 Figure 1, requiring current limiting or reduced duty cycle.
How is polarity identified on the SOT23 package?
Polarity is marked by a bar or dot adjacent to Pin 1 (anode) on the top surface; the device outline matches standard SOT23 pin 1 orientation (leftmost pin when notch or mark faces up), confirmed in Diodes' package outline DS18003 page 5.
AZ23C27Q-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):
- 27 V
- Tolerance:
- ±7.04%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 80 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 20 V
- Voltage - Forward (Vf) (Max) @ If:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
AZ23C27Q-7-F FAQ
1.How can I place an order for AZ23C27Q-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ23C27Q-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 AZ23C27Q-7-F reliable?
The price and inventory of AZ23C27Q-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 AZ23C27Q-7-F is usually 5 days.
3.What payment methods are accepted for AZ23C27Q-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ23C27Q-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ23C27Q-7-F?
AZ23C27Q-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ23C27Q-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 AZ23C27Q-7-F?
For technical support, including AZ23C27Q-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ23C27Q-7-F requirements.
6.How does Aetrix verify that AZ23C27Q-7-F is sourced from the original manufacturer or authorized distributors?
All AZ23C27Q-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 AZ23C27Q-7-F meets industry standards.
7.What is the process for return or replacement of AZ23C27Q-7-F?
All AZ23C27Q-7-F units undergo pre-shipment inspection (PSI). If there is an issue with AZ23C27Q-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 AZ23C27Q-7-F part is unused and in its original packaging.
Return procedure for AZ23C27Q-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AZ23C27Q-7-F Tags
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