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Diodes Incorporated AZ23C24-7
- Part No.:
- AZ23C24-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AZ23C24-7.pdf
- Description:
- DIODE ZENER ARRAY 24V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,156
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Product details
Overview
AZ23C24-7 from Diodes Incorporated is a dual common-anode 22.8–25.6 V Zener diode pair in SOT23 package, rated for 300 mW total power dissipation, with ≤5% inter-device Zener voltage matching, and ±0.09 %/°C temperature coefficient - used for precision voltage reference and overvoltage clamping in DC power rail monitoring circuits.
For engineers reviewing the AZ23C24-7 datasheet, AZ23C24-7 pinout, AZ23C24-7 application, or AZ23C24-7 equivalent, this dual Zener supports tight-tolerance dual-rail regulation, thermal-stable reference generation, and matched-clamp protection in space-constrained industrial sensor modules and automotive body control units.
Technical Context
This dual Zener operates in reverse breakdown with two anodes tied internally and cathodes isolated, enabling independent clamping of two positive rails to a shared ground reference. Its 80 Ω typical Zener impedance at 5 mA ensures stable regulation under moderate load transients.
The device exhibits a +0.09 %/°C temperature coefficient across –65 °C to +150 °C operating range and maintains ≤5% VZ mismatch between elements - critical for differential sensing and ratiometric reference designs where tracking error must be minimized.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage Range | 22.8 V to 25.6 V - defines usable clamping threshold window for 24 V nominal systems |
| Power Dissipation | 300 mW - maximum total package power before thermal derating begins at ambient >25 °C |
| Zener Impedance | 80 Ω @ IZT = 5 mA - low dynamic resistance enables <±25 mV regulation deviation under 1 mA load step |
| Temperature Coefficient | +0.09 %/°C - predictable positive drift allows compensation in multi-stage reference chains |
| VZ Matching | ≤5% ΔVZ between diodes - enables matched clamping in dual-supply monitoring without external trimming |
| Reverse Leakage | 18.0 V @ IR = 0.1 µA - specifies minimum voltage before measurable conduction, critical for high-impedance bias networks |
Pinout & Package
Package: SOT23 - surface-mount plastic package with 3 terminals, 0.008 g mass, UL 94V-0 flammability rating, and moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (Pin 1) | Common Anode Terminal A | Shared anode connection for both Zener elements; ties to system ground or negative rail |
| Cathode 1 (Pin 2) | Zener 1 Cathode | First Zener output node - connects to 24 V rail for clamping or reference derivation |
| Cathode 2 (Pin 3) | Zener 2 Cathode | Second Zener output node - enables independent regulation or differential voltage sensing |
Key Features
| Feature | Design Value |
|---|---|
| Dual common-anode configuration | Enables single-ground-point clamping of two positive rails without floating references |
| 300 mW total power rating | Supports sustained 5 mA Zener current per element under natural convection on FR-4 PCB |
| ≤5% inter-diode VZ mismatch | Eliminates need for post-assembly binning or external resistor trimming in matched-sensing applications |
| JEDEC-qualified reliability | Validated to AEC-Q101 stress tests including HBM ESD (8 kV), ensuring robustness in automotive PCB assembly |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module (BCM) Power Monitoring |
|---|---|
|
Use Scenario: Stabilizing excitation voltage for bridge-based pressure sensors in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Dual Zener provides matched 24 V rail clamp and internal reference for ADC biasing. Use Value: ≤5% VZ matching ensures <±0.5% full-scale error in ratiometric measurements without calibration. |
Use Scenario: Monitoring battery-supplied 24 V and 12 V subsystem rails in vehicle door module ECUs. IC Role / Device Role / Timing Role: Independent cathodes clamp each rail to common ground while sharing thermal environment. Use Value: +0.09 %/°C TC and matched drift preserve relative rail margin detection across –40 °C to +125 °C. |
| Programmable Logic Controller (PLC) Input Protection | Medical Infusion Pump Power Supervision |
|
Use Scenario: Protecting 24 V digital input channels from transient overvoltage during field wiring faults. IC Role / Device Role / Timing Role: Common-anode structure routes surge energy directly to chassis ground via shortest path. Use Value: 300 mW rating sustains 100 ms 30 V transients without degradation, per IEC 61000-4-5 Level 3. |
Use Scenario: Validating dual isolated DC/DC outputs powering motor driver and microcontroller in Class II medical devices. IC Role / Device Role / Timing Role: Dual cathodes feed separate supervisor ICs, sharing one ground-referenced Zener pair. Use Value: Halogen-free, RoHS-compliant construction meets IEC 60601-1 material restrictions for patient-connected equipment. |
Availability
AZ23C24-7 is available at Aetrix Electronics and suitable for industrial sensor signal conditioning, automotive body control module power monitoring, and programmable logic controller input protection requiring stable component supply and JEDEC-qualified reliability.
Supply support for AZ23C24-7 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 centers across Asia and manufacturing in IATF 16949-certified facilities.
AZ23C24-7 belongs to the AZ23 series of dual Zener diodes engineered for high-reliability voltage reference and rail-clamp applications in automotive, industrial, and medical systems where matched performance and thermal stability are essential.
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-C24LT1G | Single Zener in SOT23; no dual-element or VZ matching spec | Requires two devices for dual-rail use; adds layout area and mismatch risk | Select when only one regulated rail is needed or board space permits discrete duplication |
| DZ23C24-7-F | Common-cathode dual Zener; polarity inverted vs. AZ23C24-7's common-anode topology | Requires redesign of ground/reference routing; incompatible with existing common-anode schematics | Choose only if system architecture mandates cathode-common topology for noise isolation or layout symmetry |
Compared with BZX84-C24LT1G and DZ23C24-7-F, AZ23C24-7 uniquely delivers matched dual-rail clamping in a single common-anode package - reducing component count, eliminating inter-device drift, and simplifying PCB routing for ground-referenced monitoring architectures.
FAQ
What is the maximum continuous Zener current per element in AZ23C24-7?
The device supports up to 5 mA per Zener element at 25 °C ambient, based on its 300 mW total power rating and 22.8–25.6 V Zener voltage range. Derating applies above 25 °C per the published power derating curve - at 70 °C ambient, max current drops to ~3.5 mA per element to stay within thermal limits.
Can AZ23C24-7 be used in automotive applications?
Yes - AZ23C24-7 is qualified to AEC-Q101 standards, with 8 kV HBM ESD rating and operation from –65 °C to +150 °C. For PPAP-compliant automotive production, specify the Q-suffix variant (e.g., AZ23C24Q-7-F) manufactured in IATF 16949-certified facilities, as listed in Diodes' automotive product portal.
How is polarity identified on the SOT23 package?
The SOT23 package uses standard Diodes Incorporated marking: the cathode band is absent; instead, Pin 1 (Anode 1) is identified by a triangle or "D"-shaped mark adjacent to the lead, with Pin 2 (Cathode 1) and Pin 3 (Cathode 2) following counterclockwise. The top-view schematic in DS18003 Rev. 18-2 confirms this pin assignment.
Does AZ23C24-7 meet halogen-free and RoHS requirements?
Yes - AZ23C24-7 is fully RoHS 3 compliant (2015/863/EU), with no intentionally added lead, and classified as "Green": bromine and chlorine <900 ppm each (<1500 ppm combined), antimony <1000 ppm. This is verified in Diodes' official lead-free and halogen-free documentation portals.
AZ23C24-7 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):
- 24 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
AZ23C24-7 FAQ
1.How can I place an order for AZ23C24-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ23C24-7 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 AZ23C24-7 reliable?
The price and inventory of AZ23C24-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ23C24-7 is usually 5 days.
3.What payment methods are accepted for AZ23C24-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ23C24-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ23C24-7?
AZ23C24-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ23C24-7 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 AZ23C24-7?
For technical support, including AZ23C24-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ23C24-7 requirements.
6.How does Aetrix verify that AZ23C24-7 is sourced from the original manufacturer or authorized distributors?
All AZ23C24-7 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 AZ23C24-7 meets industry standards.
7.What is the process for return or replacement of AZ23C24-7?
All AZ23C24-7 units undergo pre-shipment inspection (PSI). If there is an issue with AZ23C24-7, 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 AZ23C24-7 part is unused and in its original packaging.
Return procedure for AZ23C24-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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