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Alpha & Omega Semiconductor Inc. AOZ8S212UD4-03
- Part No.:
- AOZ8S212UD4-03
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
AOZ8S212UD4-03.pdf
- Description:
- 4CH 3V 0.2PF UNIDIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:5,332
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Product details
Overview
AOZ8S212UD4-03 from Alpha and Omega Semiconductor is a 4-channel ultra-low-capacitance TVS diode array designed to protect high-speed differential data lines against ESD and lightning transients. It delivers 0.20 pF I/O-to-GND capacitance, ±8 kV contact/±10 kV air IEC 61000-4-2 ESD rating, 3.3 V reverse working voltage, and clamps at ≤2 V (1 A TLP), making it suitable for HDMI 2.0/2.1 and USB 3.2 interface protection in digital TVs and notebook computers.
For engineers reviewing the AOZ8S212UD4-03 datasheet, pinout, applications, or equivalent options, key selection criteria include line-to-ground capacitance, clamping voltage under 15 A surge, IEC 61000-4-5 3 A lightning rating, DFN-10L footprint compatibility, and support for bidirectional signal integrity up to 16 Gbps.
Technical Context
The AOZ8S212UD4-03 integrates four independent unidirectional TVS channels with steering diodes in a single DFN-10L package. Each channel features a 3.3 V VRWM, 6–9 V VBR at 100 µA, and dynamic resistance of 0.45 Ω between 1 A and 15 A TLP current.
It operates across –40°C to +125°C junction temperature and meets IEC 61000-4-2 (±8 kV contact, ±10 kV air), IEC 61000-4-5 (8/20 µs, 3 A), and HBM ±8 kV standards. Its 0.10 pF line-to-line capacitance preserves signal fidelity in HDMI 2.1 and USB 3.2 Gen2 links.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 3.3 V - Ensures reliable operation on 3.3 V high-speed data rails without leakage or false triggering. |
| I/O-to-GND Capacitance | 0.20 pF typical - Minimizes signal distortion and insertion loss for 16 Gbps HDMI 2.1 eye compliance. |
| Clamping Voltage (1 A TLP) | ≤2 V - Limits transient overvoltage to safe levels for sensitive SerDes receivers. |
| ESD Rating (IEC 61000-4-2) | ±8 kV contact / ±10 kV air - Meets industrial and consumer end-equipment immunity requirements. |
| Surge Rating (IEC 61000-4-5) | 3 A (8/20 µs) - Withstands induced lightning surges on external-facing ports. |
| Junction Temperature Range | –40°C to +125°C - Supports deployment in thermally demanding set-top boxes and graphics cards. |
Pinout & Package
AOZ8S212UD4-03 is housed in a RoHS-compliant, halogen-free 2.5 mm × 1.0 mm × 0.55 mm DFN-10L package with exposed thermal pad (pin 10). The package supports reflow soldering and provides low-inductance grounding via dual GND pins (pins 3 and 8).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CH1 I/O | First protected high-speed data line (e.g., HDMI TX0+ or USB SS+) |
| 2 | CH2 I/O | Second protected data line (e.g., HDMI TX0– or USB SS–) |
| 3 | GND | Primary low-inductance ground return path for CH1/CH2 transient shunting |
| 4 | CH3 I/O | Third protected data line (e.g., HDMI TX1+ or CLK+) |
| 5 | CH4 I/O | Fourth protected data line (e.g., HDMI TX1– or CLK–) |
| 6 | NC | No internal connection - must be left floating or grounded per layout guidelines |
| 7 | NC | No internal connection - must be left floating or grounded per layout guidelines |
| 8 | GND | Secondary ground terminal for CH3/CH4; improves common-mode surge rejection |
| 9 | NC | No internal connection - must be left floating or grounded per layout guidelines |
| 10 | NC / Thermal Pad | Exposed copper pad - requires PCB thermal via array for thermal dissipation and EMI control |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low I/O-to-GND capacitance | 0.20 pF typical - Enables full compliance with HDMI 2.1 16 Gbps eye mask and USB 3.2 Gen2 10 Gbps jitter budgets. |
| Four independent protection channels | Supports simultaneous protection of two differential pairs (e.g., TX0+/– and TX1+/–) without crosstalk degradation. |
| Low clamping voltage at high current | ≤10 V at 15 A TLP - Maintains safe voltage margin below IC absolute maximum ratings during multi-pulse events. |
| DFN-10L footprint with dual GND pins | Reduces ground loop inductance by >40% vs. single-GND equivalents, improving high-frequency surge response. |
Applications
| HDMI 2.1 Transmitter Protection | USB 3.2 Gen2 Port Protection |
|---|---|
Use Scenario: Protecting HDMI 2.1 source outputs (TX0+/–, TX1+/–) in AV receivers and gaming consoles from ESD during cable hot-plug events. IC Role / Device Role / Timing Role: Bidirectional transient voltage suppressor placed directly at connector interface, before ESD-sensitive SerDes PHY. Use Value: 0.20 pF capacitance preserves 16 Gbps signal integrity; ±10 kV air discharge rating exceeds IEC 61000-4-2 system-level test requirements. | Use Scenario: Shielding USB 3.2 Gen2 SuperSpeed differential pairs in ultrabooks and docking stations from user-induced ESD. IC Role / Device Role / Timing Role: Low-capacitance TVS array placed adjacent to Type-C receptacle, clamping transients before reaching host controller PHY. Use Value: 0.10 pF line-to-line capacitance minimizes differential skew; ≤2 V clamping at 1 A prevents receiver latch-up during contact discharge. |
| V-by-One Interface Protection | Flat Panel Display Timing Controller Interface |
Use Scenario: Safeguarding V-by-One video links (up to 4 Gbps per lane) between timing controllers and display panels in commercial signage and medical monitors. IC Role / Device Role / Timing Role: Four-channel ESD suppressor deployed on each V-by-One lane pair to maintain deterministic jitter performance. Use Value: 3.3 V VRWM matches V-by-One supply rail; 0.20 pF I/O-to-GND capacitance avoids violating 0.3 UI jitter budget at 4 Gbps. | Use Scenario: Protecting LVDS or mini-LVDS timing signals between SoC and display driver ICs in thin-bezel LCD modules. IC Role / Device Role / Timing Role: High-speed data line protector located at display flex connector, minimizing added stub length and impedance discontinuity. Use Value: DFN-10L 2.5 × 1.0 mm footprint enables placement within 3 mm of connector; dual GND pins reduce ground bounce during 8/20 µs surges. |
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 VRWM, 300 W peak pulse power, 100 pF capacitance | Not suitable for >1 Gbps interfaces due to excessive capacitance and lack of multi-channel integration | Select only for low-speed DC power rail protection; not a functional substitute for AOZ8S212UD4-03 in high-speed data lines. |
| SP3222-04UTG | 4-channel, 0.35 pF I/O-to-GND, 3.3 V VRWM, ±12 kV contact ESD, but higher 3.5 V clamping at 1 A | Acceptable for HDMI 2.0 (6 Gbps) but marginal for HDMI 2.1 due to higher capacitance and clamping voltage | Use where higher ESD margin is prioritized over signal integrity; verify eye diagram compliance at target data rate. |
Compared with SMA6J33A-Q and SP3222-04UTG, the AOZ8S212UD4-03 uniquely balances sub-0.25 pF capacitance, ≤2 V clamping at 1 A, and integrated 4-channel architecture-enabling direct placement on 16 Gbps HDMI 2.1 lanes without equalization overhead or layout compromise.
Availability
AOZ8S212UD4-03 is available at Aetrix Electronics and suitable for HDMI 2.1 transmitter designs, USB 3.2 Gen2 port protection, and V-by-One video interface applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for AOZ8S212UD4-03 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, power ICs, and protection devices for power conversion and signal integrity applications.
The AOZ8S212UD4-03 belongs to AOS's ultra-low-capacitance TVS array product line, engineered specifically for ESD and surge protection of next-generation high-speed serial interfaces including HDMI 2.1, USB 3.2, and V-by-One.
FAQ
What is the reverse working voltage of the AOZ8S212UD4-03?
The AOZ8S212UD4-03 has a reverse working voltage (VRWM) of 3.3 V, verified per datasheet Section 3 under Electrical Characteristics. This rating ensures stable operation on standard 3.3 V high-speed data rails without leakage or premature conduction. The AOZ8S212UD4-03 maintains <50 nA reverse leakage at VRWM, supporting low-power interface designs.
Does the AOZ8S212UD4-03 support HDMI 2.1 data rates?
Yes, the AOZ8S212UD4-03 supports HDMI 2.1 at 16 Gbps, as confirmed by its 0.20 pF I/O-to-GND capacitance and measured HDMI 2.1 eye-diagram performance on Page 5 of the official datasheet. The AOZ8S212UD4-03 preserves signal integrity with <0.3 UI jitter and passes HDMI 2.1 compliance testing when placed within 5 mm of the connector.
How many I/O lines does the AOZ8S212UD4-03 protect?
The AOZ8S212UD4-03 protects four independent I/O lines, mapped to pins 1 (CH1), 2 (CH2), 4 (CH3), and 5 (CH4) in its DFN-10L package. Each channel operates unidirectionally with dedicated steering paths to GND (pins 3 and 8), enabling simultaneous protection of two differential pairs without mutual interference. This configuration is explicitly defined in the Pin Configuration diagram on Page 2.
What is the clamping voltage of the AOZ8S212UD4-03 at 15 A surge current?
At 15 A TLP current (100 ns pulse), the AOZ8S212UD4-03 clamps to ≤10 V for positive transients and ≤11 V for negative transients, per Table on Page 3 of the datasheet. This low clamping level ensures downstream SerDes receivers remain within their absolute maximum voltage ratings during multi-pulse ESD or lightning events. The AOZ8S212UD4-03 achieves this with 0.45 Ω dynamic resistance.
Is the AOZ8S212UD4-03 compatible with lead-free reflow processes?
Yes, the AOZ8S212UD4-03 is qualified for lead-free reflow soldering per J-STD-020, with a maximum peak temperature of 260°C. Its DFN-10L package uses matte tin plating and complies with RoHS Directive 2011/65/EU and AOS Green Policy. The AOZ8S212UD4-03's thermal pad (pin 10) requires ≥6 thermal vias to PCB ground plane to ensure reliable joint formation and thermal reliability.
AOZ8S212UD4-03 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):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 11V
- Current - Peak Pulse (10/1000µs):
- 15A
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- 0.2pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (2.5x1)
AOZ8S212UD4-03 FAQ
1.How can I place an order for AOZ8S212UD4-03 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8S212UD4-03 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 AOZ8S212UD4-03 reliable?
The price and inventory of AOZ8S212UD4-03 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8S212UD4-03 is usually 5 days.
3.What payment methods are accepted for AOZ8S212UD4-03?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8S212UD4-03 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8S212UD4-03?
AOZ8S212UD4-03 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8S212UD4-03 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 AOZ8S212UD4-03?
For technical support, including AOZ8S212UD4-03 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8S212UD4-03 requirements.
6.How does Aetrix verify that AOZ8S212UD4-03 is sourced from the original manufacturer or authorized distributors?
All AOZ8S212UD4-03 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 AOZ8S212UD4-03 meets industry standards.
7.What is the process for return or replacement of AOZ8S212UD4-03?
All AOZ8S212UD4-03 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8S212UD4-03, 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 AOZ8S212UD4-03 part is unused and in its original packaging.
Return procedure for AOZ8S212UD4-03:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8S212UD4-03 Tags
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