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Alpha & Omega Semiconductor Inc. AOZ8300CI-03
- Part No.:
- AOZ8300CI-03
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
AOZ8300CI-03.pdf
- Description:
- TVS DIODE 3.3VWM 10.5VC SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,961
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Product details
Overview
AOZ8300CI-03 from Alpha and Omega Semiconductor is an ultra-low capacitance transient voltage suppressor (TVS) diode array designed to protect four high-speed data lines from ESD, lightning, and EFT transients. It features 3.5 pF typical junction capacitance, ±30 kV IEC 61000-4-2 contact/air discharge rating, 5.0 V reverse breakdown voltage, and clamps at 3.0 V (positive) / –3.3 V (negative) under 10 A transient current - ideal for USB 2.0 and LVDS interface protection.
For engineers reviewing the AOZ8300CI-03 datasheet, pinout, applications, or equivalent options, key selection criteria include its SOT-23-6 package, 3.3 V working reverse voltage, low dynamic resistance (0.15–0.17 Ω), 25 A IEC 61000-4-5 surge rating, and verified performance in DVI, Ethernet PHY, and flat-panel display interfaces.
Technical Context
The AOZ8300CI-03 integrates eight steering diodes and one TVS in a single SOT-23-6 package to provide bidirectional clamping across four I/O channels. Its architecture routes transient energy to VIN or ground via low-capacitance steering paths, enabling sub-10 ns response time and minimal signal distortion on high-speed lines.
It operates over –40 °C to +85 °C ambient with a junction temperature range of –40 °C to +125 °C, supports lead-free and SnPb assembly, and meets IEC 61000-4-2 Level 4, IEC 61000-4-4 (40 A EFT), and IEC 61000-4-5 (25 A, 8/20 µs) standards - all validated per manufacturer test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance | 3.5 pF typical (I/O to GND @ 1 MHz); ensures minimal signal integrity degradation on USB 2.0/LVDS lines. |
| Clamp Voltage | 3.0 V / –3.3 V @ 10 A (100 ns pulse); limits voltage overshoot during fast transients to safe levels for 3.3 V I/O. |
| ESD Rating | ±30 kV air/contact (IEC 61000-4-2); exceeds Level 4 immunity requirements for industrial and consumer ports. |
| Surge Rating | 25 A (8/20 µs, IEC 61000-4-5); provides robust lightning strike protection for Ethernet and video interfaces. |
| Working Voltage | 3.3 V VRWM; matches standard 3.3 V logic supply rails without false triggering during normal operation. |
| Dynamic Resistance | 0.15–0.17 Ω (TLP, ±1–30 A); enables rapid energy dissipation and tight clamping control under high di/dt events. |
Pinout & Package
AOZ8300CI-03 is housed in a Halogen-Free, RoHS-compliant SOT-23-6 package with 1.3 mm × 2.9 mm footprint and 1.45 mm height, optimized for space-constrained high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CH1) | I/O Channel 1 Anode | Steering path for transient on first protected data line; connects to I/O trace. |
| 2 (VN) | Negative Supply Rail | Reference node for negative clamping; ties to system ground or negative rail. |
| 3 (CH2) | I/O Channel 2 Anode | Steering path for second protected data line; electrically isolated from CH1. |
| 4 (CH4) | I/O Channel 4 Anode | Steering path for fourth protected data line; shares VN reference with CH1–CH4. |
| 5 (NC) | No Connect | Internally unconnected; must remain floating - no PCB trace or solder mask opening required. |
| 6 (CH3) | I/O Channel 3 Anode | Steering path for third protected data line; completes four-channel protection set. |
Key Features
| Feature | Design Value |
|---|---|
| Four-channel I/O protection | Single SOT-23-6 device protects four independent high-speed lines (e.g., USB D+/D–, LVDS ± pairs) without external routing. |
| Ultra-low capacitance matching | ΔCj ≤ 0.2 pF between I/O pins; maintains signal skew < 10 ps for differential timing-critical interfaces. |
| Bidirectional clamping | Clamps both positive and negative transients to VN or VIN; eliminates need for dual-polarity external biasing. |
| Low clamping voltage | VCL = 3.0 V / –3.3 V @ 10 A ensures compatibility with 3.3 V I/O tolerances and prevents latch-up in downstream PHYs. |
Applications
| USB 2.0 Interface Protection | LVDS Display Interface |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D– data lines on notebook computers and docking stations against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Transient voltage suppressor that clamps ESD pulses before they reach the USB transceiver PHY, preserving signal integrity and preventing bit errors. Use Value: 3.5 pF capacitance avoids USB 2.0 eye diagram closure; ±30 kV ESD rating ensures compliance with IEC 61000-4-2 Level 4 testing. | Use Scenario: Shielding LVDS clock and data pairs in flat-panel displays and graphics cards from board-level ESD coupling during handling or cable mating. IC Role / Device Role / Timing Role: Low-capacitance steering diode array that routes transients away from LVDS receivers while maintaining differential impedance. Use Value: ΔCj ≤ 0.2 pF minimizes skew between complementary signals; 3.0 V clamp voltage prevents receiver input overvoltage beyond 3.3 V rail limits. |
| DVI/HDMI Signal Lines | Gigabit Ethernet PHY Ports |
Use Scenario: Safeguarding DVI TMDS channels against ESD-induced jitter and pixel corruption in monitors and digital signage systems. IC Role / Device Role / Timing Role: Four-channel TVS that simultaneously protects three TMDS data lanes and one clock lane using shared VN reference. Use Value: 25 A IEC 61000-4-5 rating handles induced surges from nearby lightning strikes; 0.15 Ω dynamic resistance reduces clamping overshoot. | Use Scenario: Deploying on RJ45 connector side of 10/100/1000BASE-T Ethernet PHYs to absorb common-mode surges entering via unshielded twisted pair cabling. IC Role / Device Role / Timing Role: Bidirectional clamping device placed at PHY interface to shunt surge energy to chassis ground before reaching magnetics or PHY IC. Use Value: SOT-23-6 footprint allows placement within 2 mm of connector; low inductance layout support reduces voltage overshoot during 8/20 µs transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J33A | Single-channel, 33 V standoff, 600 W peak power; higher capacitance (>100 pF) and slower response. | Designed for lower-speed power-line or DC bus protection, not high-speed data lines. | Select only for non-signal applications where capacitance and speed are not critical. |
| SP1003-03UTG | Four-channel, 3.3 V VRWM, 3.0 pF typical capacitance, but rated only to ±15 kV ESD (IEC 61000-4-2). | Limited to consumer-grade USB/LVDS where full ±30 kV immunity is not mandated. | Use when cost sensitivity outweighs need for highest ESD margin; verify system-level test pass with AOZ8300CI-03's ±30 kV rating. |
Compared with SMA6J33A and SP1003-03UTG, AOZ8300CI-03 uniquely delivers four-channel protection in SOT-23-6 with ±30 kV ESD immunity and 3.5 pF capacitance - making it the only option qualified for industrial-grade USB 2.0 and Gigabit Ethernet front-end surge suppression without compromising signal fidelity.
Availability
AOZ8300CI-03 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, LVDS display systems, and Gigabit Ethernet PHY designs requiring stable component supply, consistent parametric performance, and long-term lifecycle availability.
Supply support for AOZ8300CI-03 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 high-efficiency MOSFETs, TVS diodes, and power ICs for computing, consumer, and industrial markets.
The AOZ8300CI-03 belongs to AOS's ultra-low-capacitance TVS diode array product line, engineered specifically to protect high-speed serial interfaces - including USB, LVDS, DVI, and Ethernet - from ESD, EFT, and lightning-induced transients without signal degradation.
FAQ
What is the maximum operating temperature range for AOZ8300CI-03?
The AOZ8300CI-03 is rated for ambient operation from –40 °C to +85 °C, with a junction temperature range of –40 °C to +125 °C. This specification ensures reliable performance in industrial and automotive cabin environments where thermal cycling and sustained elevated temperatures occur. The device's thermal design supports continuous operation within these limits when mounted on standard FR-4 PCBs with adequate copper pour.
Does AOZ8300CI-03 support both contact and air discharge ESD testing per IEC 61000-4-2?
Yes, AOZ8300CI-03 is rated for ±30 kV contact discharge and ±30 kV air discharge per IEC 61000-4-2, exceeding Level 4 requirements. This rating was verified using standardized test setups with 150 pF capacitance and 330 Ω discharge resistance. The device maintains clamping performance and leakage integrity after repeated ESD stress cycles, making AOZ8300CI-03 suitable for front-panel USB and display connectors exposed to frequent human interaction.
How many I/O lines does AOZ8300CI-03 protect, and what is the channel configuration?
AOZ8300CI-03 protects four independent I/O lines using a single SOT-23-6 package. Pins 1, 3, 4, and 6 serve as anode terminals for CH1–CH4 respectively, each steering transients to the shared VN (Pin 2) reference. Pin 5 is NC. This configuration enables compact protection of differential pairs (e.g., USB D+/D–, LVDS ±) without external components - a key advantage over discrete diode solutions requiring multiple packages.
What is the reverse working voltage (VRWM) of AOZ8300CI-03, and why is it important for 3.3 V systems?
The AOZ8300CI-03 has a reverse working voltage (VRWM) of 3.3 V, meaning it remains non-conductive under normal 3.3 V I/O operation and only activates during overvoltage events. This value matches standard 3.3 V logic rails precisely, preventing false triggering or leakage-induced signal distortion. Selecting a TVS with VRWM ≥ system supply voltage is essential to avoid standby power loss or data corruption - AOZ8300CI-03 meets this requirement exactly for 3.3 V interfaces.
Can AOZ8300CI-03 be used in lead-free and SnPb soldering processes?
Yes, AOZ8300CI-03 is qualified for both lead-free and SnPb assembly techniques. Its SOT-23-6 package is rated for reflow profiles compliant with JEDEC J-STD-020, including peak temperatures up to 260 °C for lead-free and 235 °C for SnPb. The device's Halogen-Free and RoHS-compliant construction ensures environmental compliance without sacrificing thermal or mechanical reliability during manufacturing.
AOZ8300CI-03 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 5V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 25A (8/20µs)
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 2.5pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
AOZ8300CI-03 FAQ
1.How can I place an order for AOZ8300CI-03 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8300CI-03 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 AOZ8300CI-03 reliable?
The price and inventory of AOZ8300CI-03 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8300CI-03 is usually 5 days.
3.What payment methods are accepted for AOZ8300CI-03?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8300CI-03 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8300CI-03?
AOZ8300CI-03 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8300CI-03 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 AOZ8300CI-03?
For technical support, including AOZ8300CI-03 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8300CI-03 requirements.
6.How does Aetrix verify that AOZ8300CI-03 is sourced from the original manufacturer or authorized distributors?
All AOZ8300CI-03 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 AOZ8300CI-03 meets industry standards.
7.What is the process for return or replacement of AOZ8300CI-03?
All AOZ8300CI-03 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8300CI-03, 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 AOZ8300CI-03 part is unused and in its original packaging.
Return procedure for AOZ8300CI-03:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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