My Inquiry
My Account
Diodes Incorporated AZ23C3V9-7-F
- Part No.:
- AZ23C3V9-7-F
- Manufacturer:
- Diodes Incorporated
- Category:
- Zener Diode Arrays
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AZ23C3V9-7-F.pdf
- Description:
- DIODE ZENER ARRAY 3.9V SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,420
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AZ23C3V9-7-F from Diodes Incorporated is a dual common-anode 300 mW surface-mount Zener diode with nominal Zener voltage 3.9 V (3.7–4.1 V range), 95 Ω maximum Zener impedance at 5 mA, and −0.050 %/°C temperature coefficient. It provides precision voltage reference and overvoltage clamping in space-constrained power management circuits.
For engineers reviewing the AZ23C3V9-7-F datasheet, AZ23C3V9-7-F pinout, AZ23C3V9-7-F application, or AZ23C3V9-7-F equivalent, this part supports dual-voltage regulation in compact DC-DC feedback paths, low-power sensor biasing, and rail-to-rail voltage monitoring where matched dual-Zener tracking and tight thermal stability are required.
Technical Context
This device integrates two Zener diodes sharing a common anode terminal in a single SOT23 package, enabling bidirectional voltage clamping or dual-reference generation from one footprint. Its −0.050 %/°C TC ensures minimal drift across −65 °C to +150 °C operating range.
The 300 mW power rating and 417 °C/W junction-to-ambient thermal resistance require adherence to recommended FR-4 pad layout for safe continuous operation. Reverse leakage remains ≤0.1 µA at 0.8 V, supporting low-quiescent-current designs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage | 3.9 V nominal (3.7–4.1 V range); enables stable 3.3 V or 3.6 V rail sensing with margin |
| Power Dissipation | 300 mW; supports sustained 5 mA Zener current without derating below 85 °C ambient |
| Zener Impedance | 95 Ω max at 5 mA; ensures <±50 mV regulation error under 1 mA load step |
| Temp Coefficient | −0.050 %/°C; contributes ≤±1.5 mV/°C drift in 3.9 V reference path |
| Reverse Leakage | ≤0.1 µA at 0.8 V; avoids loading of high-impedance bias networks |
| Package | SOT23; compatible with standard 0.65 mm pitch pick-and-place and reflow profiles |
Pinout & Package
Package: SOT23 - molded plastic, green compound (UL 94V-0), matte tin-plated alloy 42 leadframe, 0.008 g weight, moisture sensitivity level 1.
| 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 | Provides 3.9 V breakdown relative to common anode; used for primary reference |
| Cathode B (Pin 3) | Zener B cathode | Identical 3.9 V Zener; enables differential clamping or redundancy in safety-critical paths |
Key Features
| Feature | Design Value |
|---|---|
| Dual Zeners, common anode | Reduces PCB area by 50% vs. discrete dual-Zener solution; eliminates inter-device matching variance |
| ΔVZ ≤ 5% | Ensures ≤±0.2 V tracking between cathodes-critical for balanced clamp thresholds |
| JEDEC-qualified reliability | Validated to AEC-Q101 HBM 8 kV / MM 400 V; suitable for industrial control I/O protection |
| Lead-free & halogen-free | Complies with RoHS 3 (2015/863/EU) and automotive green standards; no Br/Cl >900 ppm |
Applications
| Industrial Sensor Signal Conditioning | USB-C Power Delivery Clamp |
|---|---|
Use Scenario: Protecting 3.3 V analog front-end inputs from ESD transients in factory-floor pressure sensors. IC Role / Device Role / Timing Role: Dual-Zener clamps positive/negative excursions to ±3.9 V relative to ground, limiting input swing before op-amp stage. Use Value: Prevents op-amp saturation and ADC offset shift during 8 kV contact ESD events per IEC 61000-4-2. | Use Scenario: Clamping CC1/CC2 lines in USB-C receptacles against 20 V misinsertion or hot-swap surges. IC Role / Device Role / Timing Role: Common-anode configuration allows symmetrical ±3.9 V clamping on differential pair without external resistors. Use Value: Eliminates need for two separate Zeners and matching layout; maintains <100 ps skew between clamp paths. |
| Low-Power IoT Node Voltage Reference | Automotive Body Control Module Reset Circuit |
Use Scenario: Generating stable 3.9 V reference for ADC calibration in battery-powered environmental monitors. IC Role / Device Role / Timing Role: Supplies regulated bias to voltage divider network feeding SAR ADC reference input. Use Value: −0.050 %/°C TC ensures <±0.5 LSB error over −40 °C to +85 °C operating range. | Use Scenario: Providing dual-threshold reset detection (3.9 V / 3.9 V) for microcontroller supply monitoring in BCM modules. IC Role / Device Role / Timing Role: Both cathodes feed independent comparator inputs; common anode tied to monitored VDD. Use Value: Enables redundant reset assertion with <10 µs propagation delay mismatch between channels. |
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-C3V9-7-F | Single Zener, same 3.9 V rating and SOT23 package; no dual configuration | Requires two devices for dual-clamp function; adds 0.5 mm² board area and layout asymmetry | Select when only one reference is needed or when cathode isolation is mandatory |
| DZ23C3V9-7-F | Same dual-Zener topology but common cathode; pinout inverted (cathode = Pin 1) | Requires PCB redesign to route common node to VCC instead of GND; incompatible with existing anode-ground layouts | Select only if system architecture mandates cathode-referenced clamping |
Compared with BZX84-C3V9-7-F and DZ23C3V9-7-F, AZ23C3V9-7-F uniquely delivers matched dual-Zener performance in a common-anode configuration-reducing component count, improving thermal tracking, and simplifying layout for ground-referenced clamp and reference designs.
Availability
AZ23C3V9-7-F is available at Aetrix Electronics and suitable for industrial sensor interfaces, USB-C power delivery systems, low-power IoT nodes, and automotive body control modules requiring stable component supply and JEDEC-qualified reliability.
Supply support for AZ23C3V9-7-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 and manufacturing facilities across Asia and the Americas.
The AZ23 series targets high-reliability, space-constrained voltage regulation and protection applications-specifically engineered for automated assembly, thermal stability, and matched dual-Zener performance in consumer, industrial, and automotive systems.
FAQ
What is the maximum continuous Zener current for AZ23C3V9-7-F at 70°C ambient?
At 70°C ambient, the device operates within its 300 mW power limit up to 76.9 mA (300 mW ÷ 3.9 V), assuming ideal heat dissipation. However, the datasheet specifies test conditions at 5 mA for Zener voltage and impedance; sustained operation above 20 mA requires verification of PCB thermal relief and derating per Figure 1's power curve.
Can AZ23C3V9-7-F be used in place of a single Zener diode like BZX84-C3V9?
Yes, but only one cathode (Pin 2 or Pin 3) should be used while leaving the other cathode unconnected. The common anode (Pin 1) must be grounded. Electrical performance matches BZX84-C3V9 for that single channel, though unused cathode adds negligible capacitance (<2 pF).
Is AZ23C3V9-7-F qualified for automotive applications?
No-the "-7-F" suffix denotes commercial-grade qualification. Automotive-grade equivalents carry a "Q-7-F" suffix (e.g., AZ23C3V9Q-7-F) and are manufactured in IATF 16949-certified facilities with full AEC-Q101 testing, PPAP documentation, and change control.
How does the common-anode configuration affect PCB layout versus common-cathode alternatives?
The common-anode layout routes the shared anode (Pin 1) directly to ground plane, minimizing ground loop inductance. In contrast, common-cathode parts (e.g., DZ23 series) require VCC connection at Pin 1-introducing potential noise coupling into supply rails and demanding tighter decoupling near the device.
AZ23C3V9-7-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):
- 3.9 V
- Tolerance:
- ±5%
- Power - Max:
- 300 mW
- Impedance (Max) (Zzt):
- 95 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
AZ23C3V9-7-F FAQ
1.How can I place an order for AZ23C3V9-7-F through Aetrix?
Please submit a Request for Quotation (RFQ) for AZ23C3V9-7-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 AZ23C3V9-7-F reliable?
The price and inventory of AZ23C3V9-7-F are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AZ23C3V9-7-F is usually 5 days.
3.What payment methods are accepted for AZ23C3V9-7-F?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AZ23C3V9-7-F transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AZ23C3V9-7-F?
AZ23C3V9-7-F orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AZ23C3V9-7-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 AZ23C3V9-7-F?
For technical support, including AZ23C3V9-7-F datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AZ23C3V9-7-F requirements.
6.How does Aetrix verify that AZ23C3V9-7-F is sourced from the original manufacturer or authorized distributors?
All AZ23C3V9-7-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 AZ23C3V9-7-F meets industry standards.
7.What is the process for return or replacement of AZ23C3V9-7-F?
All AZ23C3V9-7-F units undergo pre-shipment inspection (PSI). If there is an issue with AZ23C3V9-7-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 AZ23C3V9-7-F part is unused and in its original packaging.
Return procedure for AZ23C3V9-7-F:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AZ23C3V9-7-F 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
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
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…
