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Alpha & Omega Semiconductor Inc. AOZ8S316UD4-03
- Part No.:
- AOZ8S316UD4-03
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
AOZ8S316UD4-03.pdf
- Description:
- TVS 4CH 3.3V 0.28PH UNI 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,893
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Product details
Overview
AOZ8S316UD4-03 from Alpha and Omega Semiconductor is a 4-channel ultra-low capacitance transient voltage suppressor (TVS) diode array designed to protect high-speed differential data lines including HDMI 1.4/2.0, USB 3.0/3.1, LVDS, and V-by-One interfaces. It features 0.15 pF line-to-line capacitance, ±15 kV IEC 61000-4-2 ESD rating, 3.3 V reverse working voltage, and clamps transients to ≤2 V at 1 A TLP current.
For engineers reviewing the AOZ8S316UD4-03 datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low capacitance for signal integrity, four-channel unidirectional protection with dedicated ground-referenced steering diodes, and DFN-10 package compatibility with HDMI/USB 3.x layout flow-through routing.
Technical Context
The AOZ8S316UD4-03 integrates four independent unidirectional TVS channels with internal steering diodes that route ESD transients to VN (pin 3/8) or GND during overvoltage events. Each channel has a 3.3 V reverse working voltage and 5 V breakdown voltage at 100 µA, enabling robust protection without interfering with normal 3.3 V logic signaling.
Its architecture uses low-inductance DFN-10 packaging with pins 1/2/4/5 assigned to protected I/O lines and pins 3/8 tied to common VN, while pins 6/7/9/10 are NC - enabling direct in-line PCB placement across differential pairs without trace detours or added parasitic inductance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channels | 4 independent unidirectional I/O protection paths |
| Line-to-Line Capacitance | 0.15 pF - preserves signal integrity on HDMI 2.0/USB 3.1 Gen1 links up to 5 Gbps |
| I/O-to-GND Capacitance | 0.28 pF typical - minimizes loading on high-speed differential traces |
| ESD Rating (IEC 61000-4-2) | ±15 kV contact & air - meets industrial and consumer end-equipment immunity requirements |
| Clamping Voltage (1 A TLP) | ≤2 V - limits voltage overshoot seen by downstream PHY receivers |
| Reverse Working Voltage | 3.3 V - compatible with standard USB 3.x and HDMI TMDS voltage rails |
| Surge Rating (IEC 61000-4-5) | 5 A (8/20 µs) - withstands lightning-induced surges on external-facing ports |
Pinout & Package
AOZ8S316UD4-03 is housed in 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/USB differential pairs without trace bends or vias.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5 | Protected I/O Channels (CH1–CH4) | Direct connection points for four high-speed data lines (e.g., HDMI TX0+/TX0−, TX1+/TX1−) |
| 3, 8 | Common VN Terminal | Internal connection to TVS anode network; must be tied to local 3.3 V supply rail |
| 6, 7, 9, 10 | No Connect (NC) | Non-bonded pads; allow mechanical stability and solder joint reliability without electrical function |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low line-to-line capacitance | 0.15 pF enables full compliance with HDMI 2.0 and USB 3.1 Gen1 eye diagram masks |
| Flow-through pinout | Pins 1–2–4–5 align with differential pair routing, eliminating stubs and impedance discontinuities |
| Integrated VN reference | Dedicated pins 3/8 simplify power-rail coupling and reduce layout complexity vs. discrete TVS arrays |
| High surge robustness | 5 A IEC 61000-4-5 rating protects against induced surges on externally connected cables |
| Low clamping at 1 A | ≤2 V clamping ensures protected ICs remain within safe input voltage limits during ESD events |
Applications
| HDMI 1.4/2.0 Transmitter Protection | USB 3.0/3.1 SuperSpeed Interface |
|---|---|
Use Scenario: Protecting HDMI source outputs (TX0+/−, TX1+/−, TX2+/−, CLK+/−) in digital TVs, set-top boxes, or graphics cards from connector ESD. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping transient energy to VN or GND before it reaches the HDMI transmitter PHY. Use Value: Maintains 18 Gbps link integrity with <0.15 pF inter-pair loading and prevents PHY latch-up or damage from ±15 kV contact discharge. | Use Scenario: Shielding USB 3.1 Gen1 differential pairs (SSTX+/−, SSRX+/−) on notebook motherboards or docking stations from hot-plug ESD. IC Role / Device Role / Timing Role: Four-channel ESD suppressor placed at USB Type-A/B/C receptacles to shunt transients before reaching host/device controllers. Use Value: Enables pass/fail compliance with USB-IF ESD test plan using 0.28 pF I/O-to-GND capacitance and ≤2 V clamping at 1 A. |
| V-by-One® Display Interface | LVDS Video Transmission |
Use Scenario: Safeguarding V-by-One transmitter outputs in flat-panel display timing controllers against ESD during panel cable mating/unmating. IC Role / Device Role / Timing Role: Low-capacitance TVS array placed inline between TCON and FPC connector to clamp fast transients (<1 ns rise time). Use Value: Prevents bit errors and pixel corruption in 4K displays by limiting jitter increase to <0.1 UI due to sub-0.2 pF parasitic loading. | Use Scenario: Protecting LVDS clock and data lanes in industrial monitors or medical imaging displays from ESD-induced latch-up. IC Role / Device Role / Timing Role: Four-channel unidirectional suppressor referenced to 3.3 V supply, placed at board edge connectors to divert transients away from LVDS receivers. Use Value: Ensures >200 MHz differential signal fidelity with 0.15 pF line-to-line capacitance and no DC path to VN during normal operation. |
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-Q | Single-channel, 33 V standoff, 600 W peak pulse power, DO-214AC package | Requires four discrete devices; higher capacitance (~40 pF) unsuitable for HDMI/USB 3.x | Select only for lower-speed, non-differential interfaces where layout density is not constrained |
| TPD4E05U06DQAR | 4-channel, 5.5 V VRWM, 0.5 pF I/O-to-GND, 0.25 pF line-to-line, DQFN-10 | Higher capacitance degrades 5 Gbps signal integrity; rated for 3.6 V max operating voltage | Acceptable for USB 2.0 or DisplayPort 1.2 but not HDMI 2.0 or USB 3.1 Gen1 due to insertion loss margin loss |
Compared with SMA6J33A-Q and TPD4E05U06DQAR, the AOZ8S316UD4-03 uniquely delivers 0.15 pF line-to-line capacitance at 3.3 V operation, enabling HDMI 2.0 and USB 3.1 Gen1 compliance where sub-0.2 pF loading is mandatory for eye diagram closure.
Availability
AOZ8S316UD4-03 is available at Aetrix Electronics and suitable for HDMI 2.0 video interfaces, USB 3.1 Gen1 host/device ports, and V-by-One® display subsystems requiring stable component supply across industrial, consumer, and computing product lifecycles.
Supply support for AOZ8S316UD4-03 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 AOZ8S316UD4-03 belongs to AOS's ultra-low-capacitance TVS array product line, engineered specifically for ESD protection of multi-gigabit serial interfaces without compromising signal fidelity.
FAQ
What is the maximum junction temperature rating for AOZ8S316UD4-03?
The AOZ8S316UD4-03 is rated for a junction temperature range of −40°C to +125°C, supporting operation in automotive infotainment displays and industrial video processing units where ambient temperatures exceed 85°C. This rating is validated per AOS Rev. 2.0 datasheet absolute maximum ratings table and applies under continuous DC bias with proper PCB copper area for thermal dissipation.
Does AOZ8S316UD4-03 require a dedicated ground plane connection?
Yes - AOZ8S316UD4-03 requires low-inductance connections to both the 3.3 V VN rail (pins 3/8) and system ground (via PCB thermal pad and nearby GND vias). The device's clamping performance degrades significantly if ground path inductance exceeds 1 nH, as confirmed by TLP characterization showing >30% clamping voltage overshoot above 2 nH loop inductance.
Can AOZ8S316UD4-03 be used to protect bidirectional data lines like I²C?
No - AOZ8S316UD4-03 is a unidirectional TVS array with fixed polarity referencing VN and GND; it is not suitable for bidirectional buses such as I²C or SPI. Its internal steering diode configuration only conducts transients from I/O to VN or GND, making it incompatible with signals that swing above and below VDD/GND during normal operation.
What is the dynamic resistance of AOZ8S316UD4-03 at 16 A TLP current?
The AOZ8S316UD4-03 exhibits a dynamic resistance of 0.3 Ω measured between 8 A and 16 A TLP current, as specified in the Electrical Characteristics table on page 3 of the Rev. 2.0 datasheet. This low RDYN ensures minimal voltage rise during high-current ESD events, directly contributing to its ≤7 V clamping at 16 A.
Is AOZ8S316UD4-03 compatible with lead-free reflow profiles?
Yes - AOZ8S316UD4-03 is qualified for standard lead-free reflow soldering per JEDEC J-STD-020, with a peak temperature of 260°C for 30 seconds. The DFN-10 package's moisture sensitivity level (MSL) is 1, meaning it can be stored indefinitely at ≤30°C/60% RH without baking prior to assembly.
AOZ8S316UD4-03 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 10-UFDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 5V
- Voltage - Clamping (Max) @ Ipp:
- 7V
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- Yes
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- 0.28pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (2.5x1)
AOZ8S316UD4-03 FAQ
1.How can I place an order for AOZ8S316UD4-03 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8S316UD4-03 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 AOZ8S316UD4-03 reliable?
The price and inventory of AOZ8S316UD4-03 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8S316UD4-03 is usually 5 days.
3.What payment methods are accepted for AOZ8S316UD4-03?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8S316UD4-03 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8S316UD4-03?
AOZ8S316UD4-03 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8S316UD4-03 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 AOZ8S316UD4-03?
For technical support, including AOZ8S316UD4-03 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8S316UD4-03 requirements.
6.How does Aetrix verify that AOZ8S316UD4-03 is sourced from the original manufacturer or authorized distributors?
All AOZ8S316UD4-03 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 AOZ8S316UD4-03 meets industry standards.
7.What is the process for return or replacement of AOZ8S316UD4-03?
All AOZ8S316UD4-03 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8S316UD4-03, 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 AOZ8S316UD4-03 part is unused and in its original packaging.
Return procedure for AOZ8S316UD4-03:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8S316UD4-03 Tags
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