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Diodes Incorporated AZ23C30-7-F
- Part No.:
- AZ23C30-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AZ23C30-7-F.pdf
- Description:
- DIODE ZENER ARRAY 30V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
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Product details
Overview
AZ23C30-7-F from Diodes Incorporated is a dual common-anode 30 V Zener diode pair in SOT23 package, rated for 300 mW total power dissipation, with ±5% matching between zener voltages and 80 Ω typical zener impedance at 5 mA. It provides precision voltage reference and overvoltage clamping in space-constrained analog monitoring circuits.
For engineers reviewing the AZ23C30-7-F datasheet, AZ23C30-7-F pinout, AZ23C30-7-F application, or AZ23C30-7-F equivalent, this dual Zener supports matched voltage regulation, rail-to-rail clamping, and low-drift biasing in industrial sensor interfaces, power supply feedback networks, and automotive body control modules where thermal stability and tight unit-to-unit matching are critical.
Technical Context
This dual Zener operates in common-anode configuration: both cathodes are independently accessible, enabling independent clamping or series referencing. The matched VZ tolerance (≤5%) ensures consistent voltage thresholds across two signal paths without external trimming.
Thermal resistance is 417 °C/W (junction-to-ambient, FR-4 board), and temperature coefficient is +0.090 %/°C - indicating stable positive drift above 25 °C. Reverse leakage remains ≤0.1 µA at 22.5 V, supporting low-power standby operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 28 V to 32 V at IZT = 5 mA - defines clamping threshold range for overvoltage protection |
| Power Dissipation | 300 mW total - limits continuous current to ~9.4 mA at 32 V, constraining use in high-current shunt regulators |
| Zener Impedance | 80 Ω typical at 5 mA - determines regulation stiffness; lower than 100 Ω enables stable reference under load variation |
| Temperature Coefficient | +0.090 %/°C - predictable positive drift improves accuracy in warm environments vs. negative-coefficient devices |
| Reverse Leakage | ≤0.1 µA at 22.5 V - ensures minimal quiescent current in battery-powered sensing nodes |
| Matching Tolerance | ≤5% ΔVZ between dual elements - enables matched dual-rail clamping without calibration |
Pinout & Package
Package: SOT23 - surface-mount plastic package with 3 terminals, 0.008 g mass, UL 94V-0 rating, and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode) | Common Anode Node | Shared anode connection for both Zener diodes; ties to ground or lowest potential reference |
| Pin 2 (Cathode A) | Zener Cathode 1 | First Zener cathode; used for independent 30 V clamping or reference generation |
| Pin 3 (Cathode B) | Zener Cathode 2 | Second Zener cathode; enables dual-channel protection or differential reference architecture |
Key Features
| Feature | Design Value |
|---|---|
| Dual Common-Anode Configuration | Enables independent cathode routing for split-rail clamping or mirrored reference generation without external node sharing |
| 300 mW Power Rating | Supports sustained 5 mA operation at 30 V while maintaining thermal safety on standard FR-4 PCBs |
| ≤5% VZ Matching | Eliminates need for binning or post-assembly calibration in dual-sensor biasing applications |
| JEDEC-Qualified Reliability | Validated per AEC-Q101 (HBM 8 kV, MM 400 V) and IEC 61000-4-2 (air 15 kV, contact 8 kV) for robust ESD immunity |
| Green, Lead-Free Construction | RoHS 3 compliant with <900 ppm Br/Cl and <1000 ppm Sb - meets automotive and industrial environmental mandates |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module (BCM) Voltage Clamping |
|---|---|
Use Scenario: Protecting 3.3 V ADC inputs from transient spikes in 24 V industrial fieldbus transceivers. IC Role / Device Role / Timing Role: Dual Zener acts as bidirectional clamp: one cathode referenced to 3.3 V rail, the other to ground, limiting input swing to ±30 V. Use Value: Prevents ADC saturation and latch-up during 1 kV surge events while preserving signal fidelity below 3.3 V. |
Use Scenario: Stabilizing 5 V microcontroller supply rails against load-dump transients in door module ECUs. IC Role / Device Role / Timing Role: Provides fast-response overvoltage clamping on both VCC and reset line, using matched Zeners for symmetric threshold behavior. Use Value: Ensures deterministic reset timing and avoids brown-out resets during ISO 7637-2 Pulse 5a events up to 60 V. |
| Programmable Logic Controller (PLC) Analog Input Protection | Medical Patient Monitoring Front-End Biasing |
Use Scenario: Guarding 0–10 V analog input channels against wiring faults and ESD in modular PLC I/O cards. IC Role / Device Role / Timing Role: Dual Zener forms precision clamp network with series resistor, defining safe input window around system ground and 10 V reference. Use Value: Maintains ±0.1% measurement accuracy by limiting fault current to <1 mA before breakdown, avoiding op-amp damage. |
Use Scenario: Generating matched bias voltages for dual-channel ECG amplifier instrumentation amplifiers. IC Role / Device Role / Timing Role: Supplies symmetrical ±15 V reference offsets using identical Zener pairs, minimizing CMRR degradation from mismatch. Use Value: Achieves >100 dB common-mode rejection by holding offset drift within 0.5 mV/°C across temperature range. |
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 30 V Zener in SOT23; no dual-element matching or common-anode topology | Requires two discrete devices for dual-clamp function; introduces ≥10% VZ mismatch risk | Select only when dual-element matching is unnecessary and board area allows separate placement |
| DZ23C30-7-F | Common-cathode dual Zener (vs. AZ23's common-anode); same VZ range and power rating | Requires inverted PCB layout: cathodes tied together, anodes routed separately - incompatible with existing AZ23 footprints | Choose when system design requires shared cathode (e.g., grounded reference rail) and layout revision is feasible |
Compared with BZX84-C30LT1G and DZ23C30-7-F, AZ23C30-7-F uniquely delivers matched dual Zeners in a common-anode configuration - essential for ground-referenced dual-rail clamping without layout redesign or performance compromise from unit-to-unit mismatch.
Availability
AZ23C30-7-F is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive body control modules, programmable logic controller analog protection, and medical patient monitoring front-end biasing requiring stable component supply and JEDEC-qualified reliability.
Supply support for AZ23C30-7-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, specializing in high-reliability components for automotive, industrial, and computing markets.
AZ23C30-7-F belongs to the AZ23 dual Zener series, designed specifically for space-constrained, matched-voltage-reference applications requiring AEC-Q101 qualification and tight parametric consistency across dual elements.
FAQ
What is the maximum continuous Zener current for AZ23C30-7-F at 25°C ambient?
At 25°C ambient and with recommended FR-4 pad layout, the maximum continuous Zener current is 9.4 mA - calculated from 300 mW / 32 V (max VZ). Derating applies above 25°C per Fig. 1: current must be reduced linearly to zero at 150°C junction temperature.
Can AZ23C30-7-F be used in place of a single 30 V Zener diode?
Yes, but only one cathode (Pin 2 or Pin 3) should be used with the common anode (Pin 1) - the unused cathode must be left floating or tied to the same potential as its partner to avoid unintended conduction. Using both cathodes simultaneously requires explicit circuit intent for dual-channel operation.
Is AZ23C30-7-F qualified for automotive applications?
The base part AZ23C30-7-F is commercial-grade. For automotive use, Diodes offers the Q-suffix variant AZ23C30Q-7-F, qualified to AEC-Q101, manufactured in IATF 16949 facilities, and PPAP-capable - available through Aetrix Electronics upon request.
What is the typical capacitance of AZ23C30-7-F at 1 V reverse bias?
Per Fig. 5 in DS18003 Rev. 18-2, the typical total capacitance is approximately 30 pF at 1 V reverse bias and 25°C. This value decreases with increasing reverse voltage and is consistent across the AZ23C27–AZ23C39 family due to process uniformity.
AZ23C30-7-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):
- 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-F FAQ
1.How can I place an order for AZ23C30-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ23C30-7-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 AZ23C30-7-F reliable?
The price and inventory of AZ23C30-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ23C30-7-F is usually 5 days.
3.What payment methods are accepted for AZ23C30-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ23C30-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ23C30-7-F?
AZ23C30-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ23C30-7-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 AZ23C30-7-F?
For technical support, including AZ23C30-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ23C30-7-F requirements.
6.How does Aetrix verify that AZ23C30-7-F is sourced from the original manufacturer or authorized distributors?
All AZ23C30-7-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 AZ23C30-7-F meets industry standards.
7.What is the process for return or replacement of AZ23C30-7-F?
All AZ23C30-7-F units undergo pre-shipment inspection (PSI). If there is an issue with AZ23C30-7-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 AZ23C30-7-F part is unused and in its original packaging.
Return procedure for AZ23C30-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AZ23C30-7-F Tags
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