My Inquiry
My Account
Diodes Incorporated AZ23C22-7
- Part No.:
- AZ23C22-7
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AZ23C22-7.pdf
- Description:
- DIODE ZENER ARRAY 22V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:9,045
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AZ23C22-7 from Diodes Incorporated is a dual common-anode Zener diode in SOT23 package, rated for 300 mW total power dissipation, with nominal Zener voltage 22 V (20.8–23.3 V range at 5 mA), ±0.09 %/°C temperature coefficient, and maximum Zener impedance of 55 Ω at 5 mA - used for precision voltage reference and overvoltage clamping in low-power analog sensor interfaces.
For engineers reviewing the AZ23C22-7 datasheet, AZ23C22-7 pinout, AZ23C22-7 application, or AZ23C22-7 equivalent, key selection criteria include dual-Zener matching (ΔVZ ≤ 5%), JEDEC-qualified reliability, SOT23 thermal resistance (417 °C/W), and automotive-grade availability via Q-suffix variants.
Technical Context
This device integrates two Zener diodes sharing a common anode terminal, enabling bidirectional voltage regulation or dual-rail reference generation in compact space-constrained designs. Its matched breakdown characteristics support differential sensing and rail-to-rail clamp symmetry.
It operates across –65 °C to +150 °C with JEDEC-compliant ESD robustness (HBM 8 kV, IEC air 15 kV), and exhibits stable reverse leakage (<0.1 µA at 17 V) and predictable thermal drift due to its specified +0.09 %/°C TC.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 20.8–23.3 V at 5 mA - defines clamping threshold for 22 V nominal rail protection |
| Power Dissipation | 300 mW total - limits continuous current to ~13.6 mA at 22 V without derating |
| Zener Impedance | 55 Ω max at 5 mA - determines regulation error under load transients |
| Temperature Coefficient | +0.09 %/°C - predicts +19.8 mV/°C drift near 22 V, critical for temp-stable references |
| Reverse Leakage | ≤0.1 µA at 17 V - ensures minimal quiescent current in high-impedance bias networks |
| Thermal Resistance | 417 °C/W - requires PCB copper area management to avoid junction overheating |
Pinout & Package
Package: SOT23 - surface-mount plastic package with matte tin-plated Alloy 42 leadframe, moisture sensitivity level 1, UL 94V-0 rating, and 0.008 g mass.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Common Anode Node | Shared cathode return path for both Zeners; connects to system ground or negative rail |
| Cathode A (Pin 2) | Zener A Cathode | First Zener output node; regulates voltage between this pin and Pin 1 |
| Cathode B (Pin 3) | Zener B Cathode | Second Zener output node; enables independent 22 V reference or complementary clamping |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zener, Common Anode | Enables single-package dual-rail voltage reference or symmetrical overvoltage clamp without discrete pairing |
| ΔVZ ≤ 5% | Guarantees tight matching between the two Zeners - essential for differential sensing accuracy |
| JEDEC-qualified Reliability | Qualified per AEC-Q101 (HBM 8 kV) and IEC 61000-4-2 (Contact 8 kV) - suitable for industrial control environments |
| Green, Halogen-Free Construction | Meets RoHS 3, contains <900 ppm Br/Cl and <1000 ppm Sb - supports eco-compliance in final assembly |
Applications
| Industrial Sensor Signal Conditioning | Automotive Body Control Module (BCM) Power Monitoring |
|---|---|
Use Scenario: Protecting 24 V supply-sensed analog inputs in PLC I/O modules against load-dump transients. IC Role / Device Role / Timing Role: Dual Zener provides bidirectional clamping: one leg clamps positive surges to 22 V, the other handles negative excursions relative to common anode ground. Use Value: Eliminates need for two separate SOT23 Zeners and reduces PCB footprint by 35% while maintaining matched VZ tracking. | Use Scenario: Stabilizing reference voltage for microcontroller ADC monitoring of 12 V battery rail in BCMs. IC Role / Device Role / Timing Role: Supplies a temperature-compensated 22 V reference to a resistive divider network feeding the MCU's internal ADC. Use Value: +0.09 %/°C TC ensures <±1.2% reference error over –40 to +125 °C, meeting ASIL-B functional safety margin. |
| Medical Patient Monitor Analog Front-End | Telecom Line Interface Unit (LIU) Surge Protection |
Use Scenario: Biasing photodiode transimpedance amplifiers in portable pulse oximeters where low leakage is critical. IC Role / Device Role / Timing Role: Provides low-noise, low-leakage (≤0.1 µA) 22 V bias for op-amp rails in ultra-low-power analog chains. Use Value: Sub-microamp reverse current prevents signal offset drift in high-gain TIA stages operating at <10 µA quiescent current. | Use Scenario: Clamping induced surges on RS-485 data lines powered from isolated 24 V supplies in base station equipment. IC Role / Device Role / Timing Role: Acts as fast-response shunt protector on both signal lines referenced to local ground, leveraging dual-cathode symmetry. Use Value: Matched ΔVZ ≤ 5% ensures balanced common-mode surge suppression, reducing differential noise injection by >12 dB. |
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-C22LT1G | Single Zener, SOT23, same 22 V nominal but no dual configuration or matched pair | Requires two devices for dual-rail use; lacks ΔVZ guarantee | Select when only one regulated rail is needed and board space allows discrete placement |
| DZ23C22-7-F | Same dual-Zener topology but common cathode configuration (reversed polarity) | Suitable for circuits requiring cathode-common bias instead of anode-common grounding | Choose for compatibility with legacy DZ23-based schematics or inverted reference topologies |
Compared with BZX84-C22LT1G and DZ23C22-7-F, AZ23C22-7 uniquely delivers matched dual-anode Zeners in one package - critical for minimizing layout-induced mismatch in differential clamping and precision reference splitting.
Availability
AZ23C22-7 is available at Aetrix Electronics and suitable for industrial sensor conditioning, automotive power monitoring, medical analog front-ends, and telecom line interface units requiring stable component supply and JEDEC-qualified reliability.
Supply support for AZ23C22-7 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 industrial, automotive, and computing markets.
The AZ23 series targets space-constrained, high-stability voltage reference and protection applications - designed specifically for automated SMT assembly and extended-temperature operation in harsh environments.
FAQ
What is the maximum continuous Zener current for AZ23C22-7 at 25°C?
The device has a 300 mW total power rating. At 22 V nominal Zener voltage, maximum continuous DC current is 13.6 mA (300 mW ÷ 22 V). Derating begins above 25°C per Fig. 1 - at 85°C ambient, max current drops to ~9.5 mA to maintain safe junction temperature.
Can AZ23C22-7 be used in place of a single Zener diode?
Yes - either cathode terminal (Pin 2 or Pin 3) can be used independently with the common anode (Pin 1) as ground, delivering full 22 V regulation. However, using only one Zener forfeits the matched-pair advantage and leaves unused silicon area, though electrical performance remains identical to datasheet specs for that leg.
Is there an automotive-qualified version of AZ23C22-7?
Yes - the automotive-grade variant is AZ23C22Q-7-F, qualified to AEC-Q101, manufactured in IATF 16949-certified facilities, and PPAP-capable. It shares identical electrical specs and SOT23 packaging but adds change control, lot traceability, and extended reliability testing for automotive applications.
How does the +0.09 %/°C temperature coefficient affect circuit accuracy?
At 22 V nominal, +0.09 %/°C equals +19.8 mV/°C. Over a –40°C to +125°C range (165°C span), total drift is ±1.63 V - a ±7.4% deviation. For high-accuracy references, this must be compensated via calibration or paired with TC-canceling circuitry; it is acceptable for non-critical clamping where ±10% tolerance is allowed.
AZ23C22-7 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):
- 22 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 55 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
AZ23C22-7 FAQ
1.How can I place an order for AZ23C22-7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ23C22-7 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 AZ23C22-7 reliable?
The price and inventory of AZ23C22-7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ23C22-7 is usually 5 days.
3.What payment methods are accepted for AZ23C22-7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ23C22-7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ23C22-7?
AZ23C22-7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ23C22-7 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 AZ23C22-7?
For technical support, including AZ23C22-7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ23C22-7 requirements.
6.How does Aetrix verify that AZ23C22-7 is sourced from the original manufacturer or authorized distributors?
All AZ23C22-7 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 AZ23C22-7 meets industry standards.
7.What is the process for return or replacement of AZ23C22-7?
All AZ23C22-7 units undergo pre-shipment inspection (PSI). If there is an issue with AZ23C22-7, 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 AZ23C22-7 part is unused and in its original packaging.
Return procedure for AZ23C22-7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AZ23C22-7 Tags
-
MMBZ18VALT1G
onsemi
-
AZ23C18-7-F
Diodes Incorporated
-
MMBZ6V2ALT1G
onsemi
-
MMBZ5V6ALT1G
onsemi
-
MMBZ6V8ALT1G
onsemi
-
MMBZ5V6ALT3G
onsemi
-
MMBZ33VALT1G
onsemi
-
MMBZ9V1ALT1G
onsemi
-
MMBZ20VALT1G
onsemi
-
SZMMBZ27VALT1G
onsemi
-
MMBZ15VALT1G
onsemi
-
MMBZ12VALT1G
onsemi
Tech Hub
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
Engineering guide to Raspberry Pi alternatives, covering chip-level differences, Orange Pi, ROCK, Jetson, Banana Pi, NanoPi, Compute Module, Pico, GPIO, camera, HAT compatibility, and replacement risks…
