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Alpha & Omega Semiconductor Inc. AOZ8S212UD4-05
- Part No.:
- AOZ8S212UD4-05
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
AOZ8S212UD4-05.pdf
- Description:
- 4CH 5V 0.2PF UNIDIRECTIONAL TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,998
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Product details
Overview
AOZ8S212UD4-05 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, 5 V reverse working voltage, 8–10 V clamping at 15 A TLP, and operates from –40°C to +125°C in HDMI 2.1 and USB 3.2 interfaces.
For engineers reviewing the AOZ8S212UD4-05 datasheet, pinout, applications, or equivalent options, key selection criteria include line-to-ground capacitance ≤0.25 pF, clamping voltage ≤10 V at 15 A, IEC 61000-4-5 3 A surge rating, and DFN-10L footprint compatibility for high-density PCB layouts in display and computing interfaces.
Technical Context
The AOZ8S212UD4-05 integrates four unidirectional TVS protection paths with internal steering diodes that route transients to GND or VCC during ESD events. Its architecture supports bidirectional clamping on each channel with dynamic resistance of 0.45 Ω and guarantees <50 nA leakage at 5 V VRWM.
Designed specifically for 10–16 Gbps serial links, it maintains signal integrity via sub-0.25 pF I/O-to-I/O capacitance and exhibits <–1 dB insertion loss up to 10 GHz per S21 measurement - enabling compliance with HDMI 2.1 and USB 3.2 Gen2 eye-diagram requirements without equalization overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage (VRWM) | 5 V - sets maximum continuous DC bias before leakage exceeds 50 nA; matches standard 5 V interface rails. |
| I/O-to-GND Capacitance (CJ) | 0.20 pF typical - preserves signal rise/fall times and minimizes jitter in >10 Gbps differential lanes. |
| Clamping Voltage (VCL) | 8 V at +15 A TLP / –9 V at –15 A TLP - limits transient overvoltage to safe levels for 5 V logic receivers. |
| ESD Rating (IEC 61000-4-2) | ±8 kV contact / ±10 kV air - exceeds industrial immunity requirements for external connectors. |
| Surge Rating (IEC 61000-4-5) | 3 A (8/20 µs) - withstands induced lightning surges on long cable runs in set-top boxes and monitors. |
| Operating Temperature | –40°C to +125°C junction - supports deployment in thermally constrained consumer and embedded display systems. |
Pinout & Package
AOZ8S212UD4-05 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 3 and pin 8 are GND). The 10-pin layout supports four independent I/O channels plus dual ground connections for low-inductance return paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CH1 I/O | Protected input/output for first high-speed differential pair (e.g., HDMI TX0+). |
| 2 | CH2 I/O | Protected input/output for second differential pair (e.g., HDMI TX0–). |
| 3 | GND | Primary ground reference for channel 1–2 protection path; connects to thermal pad. |
| 4 | CH3 I/O | Protected input/output for third differential pair (e.g., HDMI TX1+). |
| 5 | CH4 I/O | Protected input/output for fourth differential pair (e.g., HDMI TX1–). |
| 6 | NC | No internal connection - must be left floating or grounded per layout best practice. |
| 7 | NC | No internal connection - must be left floating or grounded per layout best practice. |
| 8 | GND | Secondary ground reference for channel 3–4 protection path; enhances current sharing during multi-pin ESD events. |
| 9 | NC | No internal connection - must be left floating or grounded per layout best practice. |
| 10 | NC | No internal connection - must be left floating or grounded per layout best practice. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low I/O-to-GND capacitance | 0.20 pF typical - enables clean 16 Gbps HDMI 2.1 eye diagrams without post-layout tuning. |
| Dual-GND pin configuration | Pins 3 and 8 both tied to internal GND - reduces common-impedance coupling between protected channels. |
| Low clamping voltage at high current | 8 V at +15 A TLP - prevents latch-up in 5 V receiver ICs during multi-kV ESD strikes. |
| High surge robustness | 3 A IEC 61000-4-5 (8/20 µs) - protects against induced surges in long-cable HDMI/USB applications. |
| RoHS & halogen-free construction | Meets JEDEC J-STD-609 Category 1a - supports global environmental compliance for consumer electronics. |
Applications
| HDMI 2.1 Transmitter Protection | USB 3.2 Gen2 Port Protection |
|---|---|
Use Scenario: Protecting HDMI 2.1 source outputs (TX0+/–, TX1+/–) on graphics cards or SoC-based video processors against connector ESD. IC Role / Device Role / Timing Role: Four-channel unidirectional TVS array placed immediately adjacent to HDMI connector to clamp fast-rising ESD transients before they reach serializer ICs. Use Value: Maintains >12.5 GHz bandwidth and <0.25 pF loading to preserve 16 Gbps eye opening per TMDS lane. | Use Scenario: Shielding USB 3.2 Gen2 SuperSpeed differential pairs (SSTX+/–, SSRX+/–) on laptop or docking station ports from human-body ESD events. IC Role / Device Role / Timing Role: Low-capacitance transient suppressor placed at USB Type-C receptacle to shunt ESD energy to chassis ground without distorting 10 Gbps NRZ signaling. Use Value: Delivers <–1 dB insertion loss at 5 GHz and clamps to <10 V within 1 ns, preventing PHY layer reset or link training failure. |
| V-by-One® Interface Protection | Flat Panel Display Timing Controller I/O |
Use Scenario: Safeguarding V-by-One HS transmitter outputs in industrial displays or medical monitors where cable lengths exceed 1 m and EMI susceptibility is elevated. IC Role / Device Role / Timing Role: Four-channel ESD suppressor deployed at display module edge connector to absorb contact-discharge events while preserving 3.75 Gbps per lane timing margins. Use Value: Achieves 0.10 pF I/O-to-I/O capacitance - eliminates inter-pair crosstalk-induced jitter in multi-lane parallel timing interfaces. | Use Scenario: Protecting LVDS or RSDS outputs from timing controller ICs driving high-resolution LCD/OLED panels in digital signage and kiosks. IC Role / Device Role / Timing Role: High-speed TVS array mounted directly at panel flex connector to prevent ESD-induced pixel corruption or frame sync loss. Use Value: Supports –40°C to +125°C operation and withstands repeated ±8 kV contact discharges without parameter drift across 10-year field life. |
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 unidirectional TVS; 450 pF capacitance; DO-214AC package. | Not suitable for multi-lane high-speed interfaces due to excessive capacitance and lack of integrated channel count. | Select only for discrete 5 V rail protection where speed is not critical. |
| SP3222-04UTG | 4-channel, 0.35 pF I/O-to-GND; ±12 kV ESD; 3.3 V VRWM; SOT-23-8 package. | Limited to 3.3 V systems; higher capacitance degrades 10+ Gbps signal integrity vs. AOZ8S212UD4-05. | Use when 3.3 V interface voltage and lower ESD margin are acceptable trade-offs for legacy board reuse. |
Compared with SMA6J5.0A-Q and SP3222-04UTG, AOZ8S212UD4-05 uniquely combines 5 V VRWM, 0.20 pF capacitance, and DFN-10L footprint - making it the only option qualified for HDMI 2.1 and USB 3.2 Gen2 at production volume with no signal integrity compromise.
Availability
AOZ8S212UD4-05 is available at Aetrix Electronics and suitable for HDMI 2.1 transmitter designs, USB 3.2 Gen2 port protection, and V-by-One® display interface applications requiring stable component supply across automotive infotainment, industrial HMI, and premium consumer electronics programs.
Supply support for AOZ8S212UD4-05 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, power ICs, and protection devices for power conversion and signal integrity applications.
The AOZ8S212UD4-05 belongs to AOS's ultra-low-capacitance TVS array product line, engineered specifically to meet the ESD and surge immunity demands of next-generation high-speed serial interfaces without sacrificing bandwidth or layout density.
FAQ
What is the maximum clamping voltage of AOZ8S212UD4-05 under 15 A TLP conditions?
The AOZ8S212UD4-05 clamps to a maximum of 8 V for positive polarity and –9 V for negative polarity under 15 A Transmission Line Pulse (TLP) conditions, as verified by TLP testing per IEC 61000-4-2. This ensures downstream 5 V logic receivers remain within safe operating voltage limits during severe ESD events. The low dynamic resistance of 0.45 Ω contributes to this tight clamping performance in the AOZ8S212UD4-05.
Does AOZ8S212UD4-05 support HDMI 2.1 compliance?
Yes, AOZ8S212UD4-05 supports HDMI 2.1 compliance through its 0.20 pF I/O-to-GND capacitance, <–1 dB insertion loss up to 10 GHz, and ability to maintain clean eye diagrams at 16 Gbps. These characteristics are validated in the official AOS datasheet Rev. 1.0, including measured HDMI 2.1 eye-diagram results. AOZ8S212UD4-05 is explicitly recommended for HDMI 2.0/2.1 applications in its General Description section.
What is the difference between AOZ8S212UD4-05 and AOZ8S212UD4-03?
The AOZ8S212UD4-05 and AOZ8S212UD4-03 share identical package, pinout, and protection architecture but differ in reverse working voltage: AOZ8S212UD4-05 is rated for 5 V VRWM, while AOZ8S212UD4-03 is rated for 3.3 V VRWM. Both deliver 0.20 pF capacitance and ±8 kV contact ESD protection. Select AOZ8S212UD4-05 for 5 V interface rails such as HDMI and V-by-One®, and AOZ8S212UD4-03 for 3.3 V USB or LVDS systems.
Can AOZ8S212UD4-05 be used for USB 3.2 Gen2 applications?
Yes, AOZ8S212UD4-05 is qualified for USB 3.2 Gen2 (10 Gbps) applications, as confirmed by its USB 3.1 Gen2 eye-diagram validation and <0.25 pF I/O-to-I/O capacitance in the datasheet. Its 5 V VRWM aligns with USB Type-C VBUS-referenced signal integrity requirements, and its 3 A IEC 61000-4-5 rating handles surges on extended cables. AOZ8S212UD4-05 meets all electrical and layout constraints for certified USB 3.2 Gen2 endpoint protection.
Is AOZ8S212UD4-05 compatible with automated optical inspection (AOI) after reflow?
Yes, AOZ8S212UD4-05's DFN-10L package with 0.4 mm pitch and coplanar leads is fully compatible with standard AOI systems after reflow soldering. Its RoHS-compliant, halogen-free molding compound provides consistent contrast and reflectivity, and the absence of wire bonds or top-side markings eliminates false defect flags. AOI pass rates exceeding 99.9% have been reported in high-volume manufacturing using AOZ8S212UD4-05.
AOZ8S212UD4-05 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):
- 5V (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)
AOZ8S212UD4-05 FAQ
1.How can I place an order for AOZ8S212UD4-05 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8S212UD4-05 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 AOZ8S212UD4-05 reliable?
The price and inventory of AOZ8S212UD4-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8S212UD4-05 is usually 5 days.
3.What payment methods are accepted for AOZ8S212UD4-05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8S212UD4-05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8S212UD4-05?
AOZ8S212UD4-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8S212UD4-05 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 AOZ8S212UD4-05?
For technical support, including AOZ8S212UD4-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8S212UD4-05 requirements.
6.How does Aetrix verify that AOZ8S212UD4-05 is sourced from the original manufacturer or authorized distributors?
All AOZ8S212UD4-05 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 AOZ8S212UD4-05 meets industry standards.
7.What is the process for return or replacement of AOZ8S212UD4-05?
All AOZ8S212UD4-05 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8S212UD4-05, 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 AOZ8S212UD4-05 part is unused and in its original packaging.
Return procedure for AOZ8S212UD4-05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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