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Alpha & Omega Semiconductor Inc. AOZ8808DI-03
- Part No.:
- AOZ8808DI-03
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
AOZ8808DI-03.pdf
- Description:
- TVS DIODE 3.3VWM 8VC 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,716
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Product details
Overview
AOZ8808DI-03 from Alpha and Omega Semiconductor is an ultra-low capacitance TVS diode array designed to protect four high-speed data lines (e.g., HDMI 1.4/2.0 differential pairs) against ESD, EFT, and lightning transients. It features 3.3 V reverse working voltage, 0.3 pF line-to-line capacitance, ±15 kV IEC 61000-4-2 contact discharge rating, and clamps to 3.5 V at 1 A TLP current-enabling signal integrity up to 6 GHz in digital video interfaces.
For engineers reviewing the AOZ8808DI-03 datasheet, pinout, applications, or equivalent options, key selection criteria include its DFN-10 flow-through layout for HDMI/USB3.0 trace routing, low dynamic resistance (0.35 Ω), snapback hold voltage (0.8 V), and guaranteed junction capacitance ≤0.75 pF at 1 MHz.
Technical Context
The AOZ8808DI-03 integrates eight surge-rated steering diodes and one internal TVS in a single DFN-10 package, configured to shunt transients from I/O lines to VN (ground) without requiring external bias. Its snapback behavior-characterized by 0.8 V hold voltage and 3.0 mA hold current-ensures stable clamping after breakdown, reducing risk of latch-up during repeated ESD events.
Designed for flow-through PCB layout, pins 1/2/4/5 connect directly to protected I/O lines (TX0+/TX0−/TX1+/TX1−), while pins 3 and 8 are tied to VN, and pins 6/7/9/10 are NC-minimizing parasitic inductance and enabling uninterrupted signal routing beneath the device for HDMI 1.4/2.0 and USB 3.0 applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 3.3 V - sets maximum continuous DC operating voltage before leakage rises significantly |
| Clamping Voltage (1 A TLP) | 3.5 V - peak voltage seen by protected IC during 100 ns transient, limiting stress on downstream receivers |
| Junction Capacitance | 0.6–0.75 pF at 1 MHz - ensures minimal signal distortion and insertion loss up to 6 GHz |
| ESD Rating (IEC 61000-4-2) | ±15 kV contact/air - meets Level 4 immunity for consumer and industrial interface ports |
| Dynamic Resistance | 0.35 Ω - determines voltage overshoot under fast-rising surges; lower value improves clamping fidelity |
| Hold Voltage / Hold Current | 0.8 V / 3.0 mA - defines snapback latching threshold, preventing false turn-off during sustained overvoltage |
Pinout & Package
AOZ8808DI-03 uses a RoHS-compliant, halogen-free 2.5 mm × 1.0 mm × 0.55 mm DFN-10 package with exposed thermal pad (not electrically connected). The pinout supports flow-through routing for HDMI/USB3.0 differential lanes, minimizing trace discontinuities and parasitic inductance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5 | I/O Line Input (e.g., TX0+, TX0−, TX1+, TX1−) | Direct connection points for protected high-speed differential signals; internal steering diodes route transients to VN |
| 3, 8 | VN (Ground Reference) | Common cathode node for all internal TVS paths; must be connected to low-impedance system ground |
| 6, 7, 9, 10 | No Connect (NC) | Unused terminals; left unconnected per design to enable mechanical stability and simplify layout |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through pinout | Enables uninterrupted HDMI/USB3.0 differential trace routing beneath the device-reducing stubs, impedance discontinuities, and EMI coupling |
| Snapback TVS architecture | Provides stable clamping after breakdown (0.8 V hold voltage), avoiding high-impedance recovery phase that could expose ICs to secondary overstress |
| 0.3 pF line-to-line capacitance | Maintains signal integrity for 5 Gbps USB 3.0 and 18 Gbps HDMI 2.0 eye diagrams without equalization penalty |
| Four-line protection in one package | Replaces discrete dual-channel arrays, saving >40% board area versus two SOIC-8 TVS solutions |
| Green Product compliance | RoHS-compliant and halogen-free construction meets IPC-1752A material declaration requirements for global electronics manufacturing |
Applications
| HDMI 1.4/2.0 Transmitter Protection | USB 3.0 Host Port Protection |
|---|---|
Use Scenario: Protecting HDMI source outputs (e.g., GPU or SoC transmitter) on graphics cards or set-top boxes from ESD during cable hot-plug events. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed at connector interface to clamp surges before reaching serializer IC. Use Value: Preserves 18 Gbps HDMI 2.0 eye opening with <0.3 dB insertion loss at 6 GHz-verified via eye diagram testing in datasheet Figure 4. | Use Scenario: Shielding USB 3.0 host controller differential pairs (SSTX+/SSTX−, SSRX+/SSRX−) on notebook motherboards from user-induced ESD. IC Role / Device Role / Timing Role: Low-capacitance steering array routing transients from SuperSpeed lanes to chassis ground without degrading 5 Gbps NRZ signaling. Use Value: Enables pass/fail compliance with IEC 61000-4-2 Level 4 (±15 kV contact) while maintaining USB-IF electrical specification margins. |
| MDDI Interface in Mobile Devices | DVI Source Protection |
Use Scenario: Safeguarding Mobile Display Digital Interface (MDDI) links between application processors and display modules in smartphones and tablets. IC Role / Device Role / Timing Role: Four-channel ESD suppressor aligned with MDDI forward channel differential pairs (CLK+/CLK−, DATA0+/DATA0−). Use Value: Delivers <0.75 pF junction capacitance per I/O-to-ground path-critical for preserving MDDI's 1.5 Gbps timing margin and jitter budget. | Use Scenario: Securing DVI transmitter outputs on video graphics cards against ESD during monitor cable mating/unmating in commercial displays. IC Role / Device Role / Timing Role: Ultra-low-C TVS array protecting TMDS clock and data channels (CH0–CH2) from air-gap discharges near I/O connectors. Use Value: Achieves 3.5 V clamping at 1 A TLP-below DVI receiver absolute maximum rating-while adding <0.02 UI jitter to 165 MHz pixel clock. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech RCLAMP0524P.TCT | 0.35 pF typical line-to-line capacitance; 5.0 V VRWM; ±17 kV ESD rating | Targeted at 5 V systems (e.g., SATA, PCIe); higher clamping voltage (5.5 V @ 1 A) | Select when protecting 5 V interfaces where tighter ESD margin outweighs clamping voltage trade-off |
| ON Semiconductor ESD7L5.0DT5G | Single-channel 5.0 V TVS; 0.3 pF capacitance; SOT-553 package | Requires four discrete devices for quad-lane protection; no integrated flow-through layout | Choose only if board space allows discrete placement and layout constraints prevent DFN-10 integration |
Compared with RCLAMP0524P.TCT and ESD7L5.0DT5G, the AOZ8808DI-03 uniquely combines 3.3 V operation, quad-channel integration, and flow-through pinout-reducing PCB layer count and eliminating routing detours required by alternatives.
Availability
AOZ8808DI-03 is available at Aetrix Electronics and suitable for HDMI 2.0 transmitters, USB 3.0 host ports, and MDDI mobile display interfaces requiring stable component supply across automotive infotainment, industrial HMI, and consumer electronics production programs.
Supply support for AOZ8808DI-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 MOSFETs, TVS diodes, and power ICs for efficiency-critical applications.
The AOZ8808DI product line delivers ultra-low-capacitance ESD protection targeting high-speed serial interfaces-including HDMI, USB, and MDDI-where signal integrity and compact layout are non-negotiable.
FAQ
What is the maximum operating temperature range for AOZ8808DI-03?
The AOZ8808DI-03 is rated for ambient operation from −40 °C to +85 °C, with a junction temperature limit of −40 °C to +125 °C. This range supports deployment in consumer electronics enclosures and industrial environments where passive cooling dominates thermal management. The DFN-10 package's low thermal resistance enables reliable operation within these bounds without forced airflow.
Does AOZ8808DI-03 require an external bias voltage to function?
No, AOZ8808DI-03 operates without external bias-it relies on internal steering diode architecture to conduct transients to VN (ground) when line voltage exceeds the breakdown threshold. Its 3.3 V reverse working voltage and snapback behavior (0.8 V hold voltage) ensure autonomous clamping during ESD events, eliminating need for power rail connections beyond the ground reference.
How does the AOZ8808DI-03 pinout support HDMI 2.0 layout?
The AOZ8808DI-03 pinout places I/O pins (1, 2, 4, 5) and ground pins (3, 8) in a linear flow-through arrangement matching HDMI 2.0 differential pair spacing. This allows PCB traces for TX0+/TX0−/TX1+/TX1− to run uninterrupted beneath the device-avoiding vias, stubs, or bends that degrade 18 Gbps signal integrity. Pins 6/7/9/10 are NC, simplifying solder mask design.
Can AOZ8808DI-03 be used for USB 3.0 Gen 1 (5 Gbps) protection?
Yes, AOZ8808DI-03 is validated for USB 3.0 Gen 1 applications: its 0.3 pF line-to-line capacitance and <0.35 Ω dynamic resistance preserve signal eye opening at 5 Gbps, as confirmed by USB 3.0 eye diagram testing in the datasheet. It protects SSTX+/SSTX− and SSRX+/SSRX− lanes simultaneously while meeting IEC 61000-4-2 ±15 kV contact discharge requirements.
What is the clamping voltage of AOZ8808DI-03 under a 12 A TLP pulse?
Under a 100 ns Transmission Line Pulse at 12 A, the AOZ8808DI-03 clamps to 8.0 V (typical) between I/O pin and ground. This value reflects worst-case surge energy handling while remaining below absolute maximum ratings of common HDMI/USB receiver ICs. Clamping performance is guaranteed across −40 °C to +85 °C ambient per datasheet Electrical Characteristics table.
AOZ8808DI-03 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 10-UFDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 3.5V
- Voltage - Clamping (Max) @ Ipp:
- 8V
- Current - Peak Pulse (10/1000µs):
- 12A (100ns)
- Power - Peak Pulse:
- -
- Power Line Protection:
- Yes
- Applications:
- Ethernet, HDMI
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (2.5x1)
AOZ8808DI-03 FAQ
1.How can I place an order for AOZ8808DI-03 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8808DI-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 AOZ8808DI-03 reliable?
The price and inventory of AOZ8808DI-03 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8808DI-03 is usually 5 days.
3.What payment methods are accepted for AOZ8808DI-03?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8808DI-03 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8808DI-03?
AOZ8808DI-03 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8808DI-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 AOZ8808DI-03?
For technical support, including AOZ8808DI-03 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8808DI-03 requirements.
6.How does Aetrix verify that AOZ8808DI-03 is sourced from the original manufacturer or authorized distributors?
All AOZ8808DI-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 AOZ8808DI-03 meets industry standards.
7.What is the process for return or replacement of AOZ8808DI-03?
All AOZ8808DI-03 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8808DI-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 AOZ8808DI-03 part is unused and in its original packaging.
Return procedure for AOZ8808DI-03:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8808DI-03 Tags
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