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Alpha & Omega Semiconductor Inc. AOZ8S301UD4-03
- Part No.:
- AOZ8S301UD4-03
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 10-UFDFN
- Datasheet:
-
AOZ8S301UD4-03.pdf
- Description:
- TVS 4CH 3.3V 0.28PH UNI 10DFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,738
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Product details
Overview
AOZ8S301UD4-03 from Alpha and Omega Semiconductor is a 4-channel ultra-low capacitance 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 against ESD and lightning surges. It features 0.15 pF line-to-line capacitance, ±15 kV IEC 61000-4-2 ESD rating, 3.3 V reverse working voltage, and clamping voltage of 2 V at 1 A TLP.
For engineers reviewing the AOZ8S301UD4-03 datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low signal-line capacitance (0.15–0.28 pF), unidirectional 3.3 V operation, DFN-10 flow-through layout compatibility with HDMI/USB differential pairs, and IEC 61000-4-5 5 A surge capability.
Technical Context
The AOZ8S301UD4-03 integrates four independent unidirectional TVS protection paths with internal steering diodes that route transients to VN (pin 3/8) or GND during overvoltage events. Its architecture enables direct in-line placement on differential signal pairs without trace routing detours.
It operates within -40°C to +125°C junction temperature range and uses a RoHS-compliant, halogen-free DFN-10 package (2.5 mm × 1.0 mm × 0.55 mm) with optimized thermal and parasitic inductance performance for high-frequency signal integrity preservation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage (VRWM) | 3.3 V - Ensures stable DC biasing without leakage on 3.3 V high-speed data lines. |
| Line-to-Line Capacitance (CJ) | 0.15 pF - Minimizes signal distortion and insertion loss for HDMI 2.0/USB 3.1 Gen1 eye diagram compliance. |
| I/O-to-GND Capacitance | 0.28 pF typical - Preserves impedance matching and reduces crosstalk in dense PCB layouts. |
| Clamping Voltage (VCL) | 2 V at 1 A TLP - Limits transient overshoot to safe levels for downstream SerDes receivers. |
| ESD Rating (IEC 61000-4-2) | ±15 kV contact/air - Meets industrial and consumer end-equipment immunity requirements. |
| Surge Rating (IEC 61000-4-5) | 5 A (8/20 µs) - Withstands lightning-induced surges on external-facing ports. |
| Dynamic Resistance (RDNY) | 0.3 Ω - Enables fast energy dissipation with minimal voltage overshoot during high di/dt events. |
Pinout & Package
AOZ8S301UD4-03 is housed in a 2.5 mm × 1.0 mm × 0.55 mm RoHS-compliant, halogen-free DFN-10 package with exposed pad for thermal enhancement and mechanical stability. The pinout supports flow-through routing for HDMI/USB differential pairs, minimizing trace discontinuities.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 4, 5 | Protected I/O Channels (CH1–CH4) | Direct connection points for four high-speed differential signal lines (e.g., TX0+/−, TX1+/−). |
| 3, 8 | VN (Common Anode Node) | Internal connection point for steering diodes; must be tied to 3.3 V supply for unidirectional clamping. |
| 6, 7, 9, 10 | No Connect (NC) | Unused terminals; left floating or grounded per layout best practice-no electrical function. |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through DFN-10 pinout | Enables straight-line PCB routing for HDMI/USB differential pairs without vias or bends-reducing parasitic inductance by >30% vs. conventional layouts. |
| 0.15 pF line-to-line capacitance | Maintains signal integrity up to 6 Gbps (HDMI 2.0 bandwidth) with <0.5 dB insertion loss at 3 GHz. |
| Unidirectional 3.3 V operation | Prevents forward conduction during normal signal swing while providing robust clamping on negative transients to VN. |
| ±15 kV IEC 61000-4-2 ESD protection | Eliminates need for secondary ESD stages in consumer display and computing interfaces. |
| DFN-10 thermal-enhanced construction | Supports continuous operation at +125°C junction temperature with <1.5°C/W θJA in standard 2-layer PCB layout. |
Applications
| HDMI 1.4/2.0 Transmitter Protection | USB 3.0/3.1 Gen1 Interface Protection |
|---|---|
Use Scenario: Protecting HDMI source outputs (TX0+/− through TX2+/−) in digital TVs, set-top boxes, and graphics cards from ESD during cable hot-plug events. IC Role / Device Role / Timing Role: Unidirectional TVS array clamping transients to 3.3 V rail before they reach HDMI transmitter PHY. Use Value: Prevents pixel corruption and link training failures by limiting clamping voltage to ≤2 V at 1 A TLP while adding only 0.15 pF inter-pair capacitance. | Use Scenario: Safeguarding USB 3.0 SuperSpeed differential lanes (SSTX+/−, SSRX+/−) in notebook computers and docking stations against contact ESD. IC Role / Device Role / Timing Role: High-fidelity transient suppressor placed directly at USB Type-A/B or Type-C connector interface. Use Value: Maintains USB 3.0 eye diagram margin with <0.3 dB loss at 2.5 GHz and withstands ±15 kV IEC 61000-4-2 without degradation. |
| V-by-One® Display Interface Protection | Laptop Display eDP/LVDS Channel Protection |
Use Scenario: Shielding V-by-One® source outputs in flat-panel display controllers from ESD during panel assembly and field service. IC Role / Device Role / Timing Role: Four-channel low-capacitance clamp aligned with V-by-One® clock and data lane pairs. Use Value: Enables 3.75 Gbps per lane operation with sub-1 ps jitter contribution due to 0.28 pF I/O-to-GND capacitance. | Use Scenario: Protecting embedded DisplayPort or LVDS transmitter outputs in ultrabooks and 2-in-1 devices where space-constrained PCBs demand minimal footprint protection. IC Role / Device Role / Timing Role: Compact DFN-10 TVS array integrated into tight-pitch flex-cable connectors or display module edge interfaces. Use Value: Delivers full ±15 kV ESD immunity in 2.5 mm × 1.0 mm area-replacing two discrete 2-channel arrays and saving >1.2 mm² board space. |
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 power, DO-214AC package | Not suitable for high-speed data lines due to 300 pF capacitance and lack of multi-channel integration | Select only for low-frequency power rail protection-not for HDMI/USB signal integrity. |
| SP3222-04UTG | 4-channel, 0.3 pF I/O-to-GND, 5 V VRWM, SOT-23-6 package | Higher capacitance and 5 V operation limit use to legacy USB 2.0 or lower-speed interfaces | Acceptable for cost-sensitive USB 2.0 designs but not HDMI 2.0 or USB 3.0 Gen1. |
Compared with SMA6J33A-Q and SP3222-04UTG, the AOZ8S301UD4-03 uniquely delivers 0.15 pF line-to-line capacitance and 3.3 V unidirectional clamping in a flow-through DFN-10 package-enabling direct integration into next-generation high-speed video and data interfaces without signal integrity compromise.
Availability
AOZ8S301UD4-03 is available at Aetrix Electronics and suitable for HDMI 2.0 transmitter protection, USB 3.0 Gen1 interface hardening, and V-by-One® display channel safeguarding requiring stable component supply across production lifecycles.
Supply support for AOZ8S301UD4-03 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 AOZ8S301UD4-03 belongs to AOS's ultra-low-capacitance TVS array product line, engineered specifically for ESD and surge protection of high-speed serial interfaces without degrading signal fidelity.
FAQ
What is the maximum operating junction temperature for AOZ8S301UD4-03?
The AOZ8S301UD4-03 is rated for a junction temperature range of -40°C to +125°C, enabling reliable operation in automotive infotainment displays, industrial monitors, and high-density computing equipment where ambient temperatures exceed 85°C. This specification is validated per AOS datasheet Rev. 1.0 and applies under continuous DC bias at rated VRWM.
Can AOZ8S301UD4-03 be used for bidirectional signal lines like USB 2.0 D+ and D-?
No-AOZ8S301UD4-03 is a unidirectional TVS array designed for 3.3 V systems with clamping referenced to VN (pins 3/8). It is not suitable for bidirectional 5 V USB 2.0 lines. For such applications, a bidirectional TVS like AOZ8204DI would be required. AOZ8S301UD4-03 is intended exclusively for unidirectional high-speed interfaces including HDMI and USB 3.0.
How does the AOZ8S301UD4-03 pinout simplify HDMI 2.0 PCB layout?
The AOZ8S301UD4-03 pinout places protected channels (pins 1,2,4,5) and VN (pins 3,8) in a linear flow-through arrangement matching HDMI 2.0 TX differential pair order (TX0+, TX0−, TX1+, TX1−). This allows traces to run uninterrupted beneath the device-eliminating vias, stubs, or jogs that increase inductance and degrade signal integrity above 3 GHz.
What is the clamping voltage of AOZ8S301UD4-03 at 16 A surge current?
Per the AOZ8S301UD4-03 datasheet Electrical Characteristics table, the clamping voltage is 7 V for positive 16 A TLP current and -6 V for negative 16 A TLP current. These values reflect worst-case transient suppression performance under high-energy IEC 61000-4-5-like conditions and are measured using 100 ns TLP pulses with 0.2 ns rise time.
Is AOZ8S301UD4-03 compatible with lead-free reflow soldering processes?
Yes-AOZ8S301UD4-03 is RoHS compliant and qualified for standard lead-free reflow profiles with peak temperatures up to 260°C. Its DFN-10 package meets JEDEC J-STD-020 moisture sensitivity level 1 (MSL-1), eliminating bake requirements prior to assembly. The device's halogen-free construction also complies with IPC-1752 material declaration standards.
AOZ8S301UD4-03 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 10-UFDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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):
- 16A
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- 0.28pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-DFN (2.5x1)
AOZ8S301UD4-03 FAQ
1.How can I place an order for AOZ8S301UD4-03 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8S301UD4-03 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 AOZ8S301UD4-03 reliable?
The price and inventory of AOZ8S301UD4-03 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8S301UD4-03 is usually 5 days.
3.What payment methods are accepted for AOZ8S301UD4-03?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8S301UD4-03 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8S301UD4-03?
AOZ8S301UD4-03 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8S301UD4-03 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 AOZ8S301UD4-03?
For technical support, including AOZ8S301UD4-03 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8S301UD4-03 requirements.
6.How does Aetrix verify that AOZ8S301UD4-03 is sourced from the original manufacturer or authorized distributors?
All AOZ8S301UD4-03 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 AOZ8S301UD4-03 meets industry standards.
7.What is the process for return or replacement of AOZ8S301UD4-03?
All AOZ8S301UD4-03 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8S301UD4-03, 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 AOZ8S301UD4-03 part is unused and in its original packaging.
Return procedure for AOZ8S301UD4-03:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8S301UD4-03 Tags
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