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Diodes Incorporated AZ23C10-7
- Part No.:
- AZ23C10-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AZ23C10-7.pdf
- Description:
- DIODE ZENER ARRAY 10V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,043
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Product details
Overview
AZ23C10-7 from Diodes Incorporated is a dual common-anode 300mW surface-mount Zener diode with nominal Zener voltage 10.0V (9.4–10.6V range), ±5% matching between diodes, and 15Ω typical Zener impedance at 5mA. 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 AZ23C10-7 datasheet, AZ23C10-7 pinout, AZ23C10-7 application, or AZ23C10-7 equivalent, key selection criteria include dual-Zener matching tolerance, thermal resistance (417°C/W), JEDEC-qualified reliability, SOT23 footprint compatibility, and automotive-grade availability via Q-suffix variants.
Technical Context
This dual Zener diode integrates two identical Zener elements sharing a common anode terminal, enabling compact voltage clamping or dual-reference generation in space-constrained designs. Its matched VZ deviation ≤5% supports differential sensing and rail-to-rail regulation schemes.
The device uses a molded green plastic SOT23 package with matte tin-plated Alloy 42 leads, rated for 8kV HBM ESD and compliant with AEC-Q101 for automotive use when ordered as AZ23C10Q-7-F. Thermal derating begins above 25°C per the published curve.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 9.4–10.6 V at IZT = 5 mA - defines operating window for stable regulation under load |
| Max Power Dissipation | 300 mW - limits continuous current to ~30 mA at 10 V without heatsinking |
| Zener Impedance | 15 Ω typical at 5 mA - determines output voltage stability under varying load current |
| Temp Coefficient | +0.065 %/°C - indicates positive drift; requires compensation in high-precision references |
| Min Reverse Voltage | 7.5 V at IR = 0.1 µA - ensures reliable turn-on before breakdown threshold |
| Thermal Resistance | 417 °C/W junction-to-ambient - dictates temperature rise on standard FR-4 PCB |
| Operating Temp | −65°C to +150°C - supports industrial and under-hood automotive environments |
Pinout & Package
Package: SOT23 - 3-pin surface-mount plastic package with 0.915 mm lead pitch, 2.90 mm length, and 1.30 mm width; RoHS-compliant, halogen-free, and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode) | Common Anode | Shared cathode connection point for both Zener elements; ties to ground or low-side reference |
| Pin 2 (Cathode A) | Zener 1 Cathode | First Zener cathode; used for primary voltage reference or clamp path |
| Pin 3 (Cathode B) | Zener 2 Cathode | Second Zener cathode; enables dual-rail referencing or redundancy in safety-critical circuits |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zeners, Common Anode | Enables compact dual-voltage reference or mirrored clamping without discrete layout duplication |
| VZ Matching ≤5% | Supports differential error detection and matched biasing in analog front-ends |
| 300 mW Power Rating | Suitable for low-power feedback networks and sensor excitation without external heat sinking |
| AEC-Q101 Qualified (Q-suffix) | Validated for automotive applications including engine control and ADAS power domains |
| Green Molding Compound | UL 94V-0 flammability rating and <900 ppm Br/Cl content meet strict environmental compliance |
Applications
| Power Supply Feedback | Overvoltage Protection |
|---|---|
Use Scenario: Regulating output voltage in isolated flyback converters using optocoupler feedback. IC Role / Device Role / Timing Role: Dual Zener provides precise 10 V reference for TL431-like comparator input and secondary-side clamp. Use Value: Tight 5% inter-diode matching ensures consistent loop gain and reduces output ripple under transient load steps. |
Use Scenario: Protecting microcontroller I/O pins against ESD and surge events on industrial fieldbus lines. IC Role / Device Role / Timing Role: One Zener clamps positive transients to 10 V; the other provides symmetric negative clamping via external resistor network. Use Value: Integrated dual structure eliminates board space for two discrete devices while maintaining matched response thresholds. |
| Automotive Sensor Biasing | Differential Reference Generation |
Use Scenario: Providing stable excitation voltage for RTD or bridge-based pressure sensors in engine management systems. IC Role / Device Role / Timing Role: Common-anode configuration supplies matched 10 V bias to sensor legs while rejecting common-mode noise. Use Value: Temperature coefficient of +0.065%/°C allows predictable drift compensation in closed-loop calibration routines. |
Use Scenario: Generating complementary reference voltages for ADC input scaling in data acquisition modules. IC Role / Device Role / Timing Role: Two cathodes deliver identical 10 V references to separate signal chains with shared ground return. Use Value: ≤5% VZ matching minimizes channel-to-channel offset errors in multi-channel measurement systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Zener reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| BZX84-C10-7-F | Single Zener, same SOT23 package, 9.4–10.6 V range, but no dual-element matching | Lacks common-anode dual functionality; requires two devices for equivalent circuit | Select when only one reference is needed and board area permits discrete placement |
| DZ23C10-7-F | Common-cathode dual Zener variant; same VZ range and power rating but inverted polarity | Requires redesign of grounding scheme; better suited for high-side clamping topologies | Choose when system architecture favors cathode-referenced clamping or existing layout uses DZ23 footprint |
Compared with BZX84-C10-7-F and DZ23C10-7-F, AZ23C10-7 uniquely delivers matched dual Zeners in a single common-anode configuration-reducing component count by 50% versus dual singles and simplifying layout versus common-cathode alternatives in low-side referenced systems.
Availability
AZ23C10-7 is available at Aetrix Electronics and suitable for power supply feedback, overvoltage protection, and automotive sensor biasing requiring stable component supply across industrial, automotive, and medical electronics programs.
Supply support for AZ23C10-7 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, specializing in high-reliability components for automotive, industrial, and computing markets.
AZ23C10-7 belongs to the AZ23C series of dual Zener diodes designed specifically for space-efficient voltage regulation and matched reference generation in automated SMT assembly environments.
FAQ
What is the maximum continuous Zener current for AZ23C10-7 at 25°C?
At 25°C ambient, the maximum continuous Zener current is calculated from PD = 300 mW and VZ ≈ 10 V, yielding ~30 mA. Derating applies above 25°C per the published power derating curve, reducing allowable current linearly to zero at ~150°C junction temperature.
Can AZ23C10-7 be used in automotive applications?
Yes - the automotive-qualified variant AZ23C10Q-7-F is AEC-Q101 qualified, manufactured in IATF 16949 certified facilities, and supports PPAP documentation. It shares identical electrical specs and SOT23 packaging, differing only in traceability and process controls required for automotive deployment.
How is the common-anode configuration implemented internally?
The AZ23C10-7 contains two physically separate Zener junctions sharing a single silicon substrate anode region, with individual cathode metallization routed to Pins 2 and 3. This monolithic integration ensures thermal coupling and voltage matching within the specified ≤5% tolerance, verified during wafer-level testing.
What is the typical capacitance at 10 V reverse bias?
Per Figure 5 in the datasheet, total capacitance for AZ23C10-7 is approximately 30 pF at 1 V reverse bias and decreases with increasing voltage. At 10 V reverse bias, typical capacitance is ≤15 pF - critical for high-frequency noise suppression and fast transient response in clamping applications.
AZ23C10-7 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):
- 10 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 15 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
AZ23C10-7 FAQ
1.How can I place an order for AZ23C10-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ23C10-7 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 AZ23C10-7 reliable?
The price and inventory of AZ23C10-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ23C10-7 is usually 5 days.
3.What payment methods are accepted for AZ23C10-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ23C10-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ23C10-7?
AZ23C10-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ23C10-7 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 AZ23C10-7?
For technical support, including AZ23C10-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ23C10-7 requirements.
6.How does Aetrix verify that AZ23C10-7 is sourced from the original manufacturer or authorized distributors?
All AZ23C10-7 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 AZ23C10-7 meets industry standards.
7.What is the process for return or replacement of AZ23C10-7?
All AZ23C10-7 units undergo pre-shipment inspection (PSI). If there is an issue with AZ23C10-7, 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 AZ23C10-7 part is unused and in its original packaging.
Return procedure for AZ23C10-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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