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Alpha & Omega Semiconductor Inc. AOZ8224CI-05
- Part No.:
- AOZ8224CI-05
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
AOZ8224CI-05.pdf
- Description:
- TVS DIODE 5VWM 15VC SOT23-5L
- Quantity:
- Payment:
- Shipping:
Inventory:4,034
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Product details
Overview
AOZ8224CI-05 from Alpha and Omega Semiconductor is a four-line bidirectional TVS diode array in SOT-23-5L package, rated for 5.0 V working peak reverse voltage, ±30 kV IEC 61000-4-2 ESD protection (contact/air), and 5 A peak pulse current (8/20 µs). It protects high-speed data lines in space-constrained portable electronics.
For engineers reviewing the AOZ8224CI-05 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage (11.0 V @ IPP = 1 A), low capacitance (13.0 pF typ.), bidirectional protection per line, thermal rating (-40°C to +85°C), and RoHS-compliant Green packaging.
Technical Context
The AOZ8224CI-05 integrates eight discrete TVS diodes-four bidirectional pairs-in a single SOT-23-5L package, enabling simultaneous protection of four independent signal lines. Each channel provides symmetrical clamping with breakdown voltage ≥5.5 V and clamping voltage ≤15.0 V at 10 A.
It meets IEC 61000-4-2 Level 4 (±15 kV air/±8 kV contact) by exceeding those thresholds (±30 kV), supports IEC 61000-4-5 lightning surge (5 A, 8/20 µs), and delivers low insertion loss due to 13.0 pF typical junction capacitance at 0 V and 1 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Peak Reverse Voltage (VRWM) | 5.0 V - Maximum continuous operating voltage before conduction begins on each protected line. |
| Breakdown Voltage (VBR) min | 5.5 V @ 5 mA - Ensures reliable triggering above normal signal swing while avoiding false clamping. |
| Clamping Voltage (VCL) max | 15.0 V @ IPP = 10 A - Limits transient voltage seen by downstream ICs during worst-case 8/20 µs surges. |
| Junction Capacitance (CJ) | 13.0 pF typ. @ 0 V, 1 MHz - Minimizes signal distortion on high-speed data lines (e.g., USB, keypad, camera interfaces). |
| ESD Rating (IEC 61000-4-2) | ±30 kV contact & air - Exceeds industrial immunity requirement (Level 4) by 2×, enabling robust field reliability. |
| Ambient Temperature Range | -40°C to +85°C - Validated operation across commercial and extended industrial environments. |
| Package | SOT-23-5L - Surface-mount footprint measuring 2.9 mm × 1.6 mm × 1.1 mm, suitable for dense PCB layouts. |
Pinout & Package
SOT-23-5L package: 5-pin surface-mount, moisture-sensitive level 1, RoHS-compliant Green construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O1 Anode/Cathode pair | Bidirectional ESD path for first signal line; symmetric clamping enables AC-coupled or DC-biased data lines. |
| 2 | I/O2 Anode/Cathode pair | Independent second protected line; electrically isolated from Pin 1, supporting multi-channel isolation. |
| 3 | GND | Common reference for all four TVS channels; must be low-inductance connection to system ground plane. |
| 4 | I/O3 Anode/Cathode pair | Third protected signal line; identical electrical characteristics to Pins 1 and 2. |
| 5 | I/O4 Anode/Cathode pair | Fourth protected signal line; enables full four-line protection without external components or routing complexity. |
Key Features
| Feature | Design Value |
|---|---|
| Four-line bidirectional protection | Single-component solution for four independent signal paths, eliminating need for four discrete TVS arrays or dual-channel devices. |
| Low clamping voltage (11.0 V @ 1 A) | Reduces stress on downstream logic inputs during ESD events, improving system-level immunity margin. |
| 13.0 pF typical junction capacitance | Preserves signal integrity on 10–50 Mbps data lines (e.g., keypad scan, camera control, GPS UART) without added RC filtering. |
| ±30 kV ESD rating (IEC 61000-4-2) | Validated performance beyond standard Level 4 requirements, reducing need for retest after minor layout changes. |
| SOT-23-5L footprint | Enables placement adjacent to connectors or IC pads with minimal trace length, maximizing protection effectiveness. |
Applications
| Keypad & Button Protection | USB Interface Protection |
|---|---|
Use Scenario: Keypad matrix traces exposed to user touch in handheld medical monitors and industrial HMIs. IC Role / Device Role / Timing Role: Bidirectional TVS array clamping fast-rising ESD transients before they reach microcontroller GPIOs. Use Value: Prevents firmware lockup or reset caused by ESD-induced latch-up, leveraging 11.0 V clamping and 13.0 pF capacitance to avoid signal delay. | Use Scenario: D+/D− lines of USB 2.0 ports on portable GPS units subjected to repeated plug/unplug cycles. IC Role / Device Role / Timing Role: Low-capacitance TVS protection maintaining signal rise/fall times while suppressing ±30 kV contact discharges. Use Value: Enables full USB 2.0 compliance without sacrificing ESD robustness, using matched channel characteristics and shared GND return. |
| Digital Camera Interface | Notebook Keyboard & Touchpad |
Use Scenario: MIPI CSI-2 clock/data lanes between image sensor and SoC in compact digital cameras. IC Role / Device Role / Timing Role: Four-line TVS array protecting two differential pairs (CLK+/CLK−, DATA+/DATA−) with symmetrical clamping. Use Value: Maintains timing margin via 13.0 pF typical capacitance and sub-15 V clamping, preventing bit errors during ESD events. | Use Scenario: Scan matrix lines and interrupt signals connecting keyboard/touchpad to EC in ultra-thin notebooks. IC Role / Device Role / Timing Role: Space-efficient protection of four independent low-voltage (3.3 V) I/Os sharing one GND pin. Use Value: Eliminates need for four separate SOD-323 devices, reducing BOM count and PCB area by >60% vs. discrete alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J5.0A | Single-line unidirectional TVS, 5.0 V VRWM, 100 W peak power, DO-214AC package (larger than SOT-23-5L) | Requires four separate devices and routing; no integrated GND sharing; unsuitable for high-density layouts | Select only when higher surge rating (100 W vs. 70 W) outweighs board space penalty and assembly cost. |
| TPD4E001DRYR | Four-line bidirectional TVS, 5.0 V VRWM, 12 pF typ. capacitance, X2SON-8 package (1.0 × 1.5 mm), ±30 kV ESD | Smaller footprint but different pinout (8-pin vs. 5-pin); requires redesign of pad layout and signal routing | Prefer when ultra-low capacitance (12 pF) and minimal size are critical, and layout revision is feasible. |
Compared with SMA6J5.0A and TPD4E001DRYR, the AOZ8224CI-05 uniquely balances four-line integration, SOT-23-5L compatibility, and 13.0 pF capacitance-making it optimal for cost-sensitive, space-constrained designs where pinout reuse and assembly simplicity are prioritized over marginal capacitance reduction or surge power increase.
Availability
AOZ8224CI-05 is available at Aetrix Electronics and suitable for portable handheld devices, notebook computers, and digital cameras requiring stable component supply with guaranteed RoHS-compliant Green manufacturing and -40°C to +85°C operational reliability.
Supply support for AOZ8224CI-05 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
Alpha and Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in MOSFETs, TVS diodes, and power ICs for efficiency-critical applications.
The AOZ8224CI-05 belongs to AOS's ESD protection product line, designed specifically for high-density, low-voltage signal line protection in battery-powered consumer electronics.
FAQ
What is the maximum clamping voltage of the AOZ8224CI-05 under 10 A surge conditions?
The AOZ8224CI-05 has a maximum clamping voltage of 15.0 V when subjected to a 10 A peak pulse current (8/20 µs waveform). This value is specified in the Electrical Characteristics table on page 2 of the Rev. 3.1 datasheet and ensures downstream ICs remain within safe voltage limits during severe transients. The AOZ8224CI-05 maintains this clamping performance across its full operating temperature range.
Does the AOZ8224CI-05 support bidirectional protection on all four lines simultaneously?
Yes, the AOZ8224CI-05 provides true bidirectional protection on all four I/O lines (Pins 1, 2, 4, and 5) referenced to Pin 3 (GND). Each line uses a back-to-back diode configuration, enabling symmetrical clamping for both positive and negative transients. This architecture is confirmed in the "Typical Application Pin Configuration" diagram and electrical specs (VBR min = 5.5 V, bidirectional ESD rating).
What is the junction capacitance of the AOZ8224CI-05, and how does it affect high-speed signal lines?
The AOZ8224CI-05 has a typical junction capacitance of 13.0 pF at 0 V and 1 MHz, with a maximum of 14.0 pF. This low capacitance minimizes signal degradation on data lines up to ~50 Mbps (e.g., UART, I²C, keypad scan), preserving edge rates and reducing crosstalk risk. The AOZ8224CI-05 achieves this without compromising ESD robustness (±30 kV).
Is the AOZ8224CI-05 compliant with RoHS and halogen-free standards?
Yes, the AOZ8224CI-05 is an AOS Green Product: RoHS compliant and halogen-free per AOS Green Policy (document ID AOSGreenPolicy.pdf). It contains reduced levels of bromine, chlorine, and other halogens, and meets JEDEC J-STD-609A Class 1 moisture sensitivity. This compliance is explicitly stated in the Ordering Information section of the Rev. 3.1 datasheet.
Can the AOZ8224CI-05 replace discrete TVS diodes in existing designs without layout changes?
Yes-the AOZ8224CI-05's SOT-23-5L package and 5-pin pinout (I/O1, I/O2, GND, I/O3, I/O4) allow direct replacement of discrete solutions if the PCB footprint matches. Its integrated four-line structure eliminates four separate placements, but requires verification that GND connection inductance remains low. The AOZ8224CI-05 simplifies layout while maintaining identical protection function per line.
AOZ8224CI-05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 4
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 5.5V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 70W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 13pF @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
AOZ8224CI-05 FAQ
1.How can I place an order for AOZ8224CI-05 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8224CI-05 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 AOZ8224CI-05 reliable?
The price and inventory of AOZ8224CI-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8224CI-05 is usually 5 days.
3.What payment methods are accepted for AOZ8224CI-05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8224CI-05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8224CI-05?
AOZ8224CI-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8224CI-05 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 AOZ8224CI-05?
For technical support, including AOZ8224CI-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8224CI-05 requirements.
6.How does Aetrix verify that AOZ8224CI-05 is sourced from the original manufacturer or authorized distributors?
All AOZ8224CI-05 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 AOZ8224CI-05 meets industry standards.
7.What is the process for return or replacement of AOZ8224CI-05?
All AOZ8224CI-05 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8224CI-05, 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 AOZ8224CI-05 part is unused and in its original packaging.
Return procedure for AOZ8224CI-05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8224CI-05 Tags
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