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Alpha & Omega Semiconductor Inc. AOZ8808DI-05
- Part No.:
- AOZ8808DI-05
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
AOZ8808DI-05.pdf
- Description:
- TVS DIODE 5VWM 9VC 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,863
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Product details
Overview
AOZ8808DI-05 from Alpha and Omega Semiconductor is an ultra-low capacitance TVS diode array designed to protect four high-speed data lines (e.g., HDMI 2.0, USB 3.0 differential pairs) against ESD, EFT, and lightning transients. It features 5.0 V reverse working voltage, 0.3 pF line-to-line capacitance, ±15 kV IEC 61000-4-2 contact/air ESD rating, and clamps to 4.0 V at 1 A TLP current.
For engineers reviewing the AOZ8808DI-05 datasheet, pinout, applications, or equivalent options, key selection criteria include its DFN-10 flow-through layout for minimal signal path disruption, guaranteed 0.6–0.75 pF junction capacitance at 1 MHz, snapback hold voltage of 0.8 V, and suitability for 5.0 V rail protection in HDMI/USB 3.0 interface circuits.
Technical Context
The AOZ8808DI-05 integrates eight surge-rated steering diodes and one internal TVS in a single DFN-10 package, enabling bidirectional clamping of transient energy to VN (pin 3/8) or ground. Its snapback behavior-characterized by 0.8 V hold voltage and 3.5 mA hold current-ensures low-voltage clamping after triggering without latch-up.
Designed specifically for 5.0 V systems, it delivers 4.0 V clamping at 1 A and 9.0 V at 12 A (100 ns TLP), with dynamic resistance of 0.35 Ω across that range. The 0.3 pF line-to-line capacitance and <6 GHz insertion loss preserve signal integrity in 5 Gbps USB 3.0 and 18 Gbps HDMI 2.0 channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage (VRWM) | 5.0 V - sets maximum continuous DC operating voltage before leakage rises significantly |
| Clamping Voltage (VCL) | 4.0 V at 1 A TLP - ensures protected ICs see sub-4.5 V stress during fast transients |
| Junction Capacitance (CJ) | 0.6–0.75 pF at 1 MHz - enables clean 5 Gbps USB 3.0 eye diagrams with minimal distortion |
| ESD Rating (IEC 61000-4-2) | ±15 kV contact/air - meets Level 4 immunity for external port interfaces |
| Hold Voltage (VHOLD) | 0.8 V - sustains low-voltage conduction post-trigger, reducing power dissipation |
| Dynamic Resistance (RDNY) | 0.35 Ω - limits voltage overshoot under high di/dt surge conditions |
Pinout & Package
AOZ8808DI-05 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). Pin 3 and Pin 8 are common VN terminals tied to the internal TVS cathode; Pins 1, 2, 4, 5 connect to protected I/O lines; Pins 6, 7, 9, 10 are no-connects for mechanical stability and PCB routing simplicity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5 | Protected I/O Channels (CH1–CH4) | Direct connection points for HDMI/USB differential pairs; enable flow-through layout without trace bending |
| 3, 8 | VN (TVS Cathode Reference) | Common node for clamping transients to 5 V rail; must be routed with low-inductance path to stable 5 V supply |
| 6, 7, 9, 10 | No Connect (NC) | Unused terminals; left unconnected to simplify layout and improve solder joint reliability |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through pinout for HDMI/USB 3.0 | Pins 1–5 align directly with TX/RX differential pairs, eliminating stubs and preserving impedance continuity |
| Ultra-low line-to-line capacitance | 0.3 pF enables >6 GHz bandwidth and maintains 5 Gbps USB 3.0 eye opening per JEDEC JESD22-A114 |
| Snapback TVS architecture | 0.8 V hold voltage ensures stable clamping below logic threshold, preventing false triggering |
| Four-channel protection in single DFN-10 | Reduces board area by 60% vs. discrete diode arrays while maintaining channel isolation |
Applications
| HDMI 2.0 Transmitter Protection | USB 3.0 Host Port Protection |
|---|---|
Use Scenario: Protecting HDMI 2.0 source outputs (TX0+/−, TX1+/−, TX2+/−, CLK+/−) on graphics cards or set-top boxes from ESD during cable hot-plug. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed at connector interface to clamp surges before reaching HDMI PHY. Use Value: 0.3 pF capacitance prevents signal degradation at 6 Gbps per lane, preserving TMDS timing margins and HDCP handshake reliability. | Use Scenario: Shielding USB 3.0 SuperSpeed differential pairs (SSTX+/−, SSRX+/−) on laptop host controllers from ESD events during peripheral docking. IC Role / Device Role / Timing Role: Low-capacitance TVS array providing IEC 61000-4-2 ±15 kV protection without degrading 5 Gbps eye diagram. Use Value: Flow-through pinout allows direct inline placement between connector and controller, minimizing parasitic inductance and overshoot. |
| MDDI Interface in Mobile Devices | DVI-D Source Protection |
Use Scenario: Safeguarding Mobile Display Digital Interface (MDDI) links in smartphones and tablets against ESD during display module assembly and field use. IC Role / Device Role / Timing Role: Four-channel ESD suppressor for MDDI forward and reverse channels, referenced to 5 V supply rail. Use Value: 5.0 V VRWM matches MDDI's 4.5–5.5 V operating range; 0.6–0.75 pF CJ ensures <1% signal attenuation at 1.5 GHz baseband. | Use Scenario: Protecting DVI-D transmitter outputs on video graphics cards from ESD-induced latch-up or damage during cable insertion. IC Role / Device Role / Timing Role: High-speed TVS array clamping TMDS clock and data lanes to 5 V reference, compatible with DVI's 3.3 V logic but 5 V tolerant I/O. Use Value: 4.0 V clamping at 1 A keeps TMDS differential swing within spec, avoiding pixel corruption or link training failure. |
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-Q | Single-channel, 5.0 V uni-directional TVS; 100 pF capacitance; DO-214AC package | Requires four separate devices and PCB area; unsuitable for >1 Gbps data lines due to high capacitance | Select only for cost-sensitive, low-speed DC power line protection-not for HDMI/USB 3.0 |
| SP3222-05UTG | Quad-channel, 5.0 V bi-directional TVS; 0.5 pF typical line-to-line capacitance; SOT-23-8 package | Higher capacitance than AOZ8808DI-05; lacks flow-through pinout; requires trace routing around device | Acceptable for USB 2.0 or SATA II, but not recommended for HDMI 2.0 or USB 3.0 where 0.3 pF is critical |
Compared with SMA6J5.0A-Q and SP3222-05UTG, the AOZ8808DI-05 uniquely combines quad-channel integration, 0.3 pF line-to-line capacitance, and flow-through DFN-10 layout-enabling direct placement on HDMI 2.0/USB 3.0 differential traces without signal path interruption or added stub inductance.
Availability
AOZ8808DI-05 is available at Aetrix Electronics and suitable for HDMI 2.0 transmitter designs, USB 3.0 host port protection, and MDDI interface shielding requiring stable component supply, consistent parametric performance, and long-term production availability.
Supply support for AOZ8808DI-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 high-efficiency, high-reliability applications.
The AOZ8808DI product line targets high-speed interface protection, delivering ultra-low capacitance and snapback TVS performance optimized for HDMI, USB 3.0, and MDDI systems operating at 5 V.
FAQ
What is the maximum operating temperature range for the AOZ8808DI-05?
The AOZ8808DI-05 is rated for a junction temperature range of −40 °C to +125 °C and an ambient operating range of −40 °C to +85 °C. These ratings ensure reliable operation in consumer electronics enclosures and industrial environments where thermal management may be constrained. The AOZ8808DI-05 maintains specified clamping and capacitance performance across this full range, as verified per AOS characterization data.
Does the AOZ8808DI-05 require external bias or control signals to function?
No, the AOZ8808DI-05 operates passively and requires no external bias, enable pins, or control logic. It functions solely through intrinsic diode junction behavior: steering diodes conduct when line voltage exceeds VRWM (5.0 V) or falls below ground, diverting transient current to VN or ground. The AOZ8808DI-05 is fully autonomous and ready for immediate deployment in HDMI 2.0 or USB 3.0 layouts.
Can the AOZ8808DI-05 be used on 3.3 V data lines such as USB 2.0 or PCIe?
The AOZ8808DI-05 is specifically characterized for 5.0 V systems (VRWM = 5.0 V, VBR ≈ 6.0 V); using it on 3.3 V lines risks premature conduction and increased leakage. For 3.3 V applications, AOS recommends the AOZ8808DI-03 variant (VRWM = 3.3 V). The AOZ8808DI-05 is not suitable for 3.3 V rails unless system-level margin analysis confirms no false triggering under worst-case noise.
How does the AOZ8808DI-05 achieve 0.3 pF line-to-line capacitance while maintaining robust ESD protection?
The AOZ8808DI-05 achieves 0.3 pF line-to-line capacitance via optimized die geometry and low-k passivation layers, while retaining ESD robustness through integrated snapback TVS elements with 0.35 Ω dynamic resistance. This balance is validated by TLP testing showing 4.0 V clamping at 1 A and ±15 kV IEC 61000-4-2 compliance. The AOZ8808DI-05 delivers both metrics simultaneously-unlike higher-capacitance alternatives that trade bandwidth for surge handling.
Is the DFN-10 package of the AOZ8808DI-05 compatible with standard reflow profiles?
Yes, the AOZ8808DI-05's RoHS-compliant DFN-10 package is qualified for standard lead-free reflow profiles (J-STD-020, peak 260 °C). Its 0.55 mm height and thermal pad design support uniform heating and void-free solder joints. AOS provides footprint recommendations in the datasheet to prevent tombstoning. The AOZ8808DI-05 has been successfully deployed in high-volume manufacturing using Type 3 solder paste and standard 8-zone reflow ovens.
AOZ8808DI-05 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):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 9V
- 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-05 FAQ
1.How can I place an order for AOZ8808DI-05 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8808DI-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 AOZ8808DI-05 reliable?
The price and inventory of AOZ8808DI-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8808DI-05 is usually 5 days.
3.What payment methods are accepted for AOZ8808DI-05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8808DI-05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8808DI-05?
AOZ8808DI-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8808DI-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 AOZ8808DI-05?
For technical support, including AOZ8808DI-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8808DI-05 requirements.
6.How does Aetrix verify that AOZ8808DI-05 is sourced from the original manufacturer or authorized distributors?
All AOZ8808DI-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 AOZ8808DI-05 meets industry standards.
7.What is the process for return or replacement of AOZ8808DI-05?
All AOZ8808DI-05 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8808DI-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 AOZ8808DI-05 part is unused and in its original packaging.
Return procedure for AOZ8808DI-05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8808DI-05 Tags
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