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Alpha & Omega Semiconductor Inc. AOZ8846DT-05
- Part No.:
- AOZ8846DT-05
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 5-XFDFN
- Datasheet:
-
AOZ8846DT-05.pdf
- Description:
- ULTRA LOW CAPACITANCE
- Quantity:
- Payment:
- Shipping:
Inventory:2,294
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Product details
Overview
AOZ8846DT-05 from Alpha and Omega Semiconductor is a 4-channel ultra-low capacitance transient voltage suppressor (TVS) array designed for ESD protection of high-speed differential data lines. It delivers 0.15 pF line-to-line capacitance, ±12 kV contact/±15 kV air IEC 61000-4-2 ESD immunity, and clamps transients to ≤5 V at 4 A (TLP), enabling signal integrity preservation in HDMI 2.0 and USB 3.1 Gen2 interfaces.
For engineers reviewing the AOZ8846DT-05 datasheet, pinout, applications, or equivalent options, key selection criteria include its DFN-5 package footprint, flow-through layout compatibility with HDMI/USB routing, low dynamic resistance (0.4–0.75 Ω), and guaranteed clamping performance under IEC 61000-4-5 lightning surges.
Technical Context
The AOZ8846DT-05 integrates eight surge-rated steering diodes and one internal TVS in a single DFN-5 package to protect four bidirectional I/O lines. Its architecture routes ESD transients either to VCC or ground via low-capacitance steering paths, minimizing parasitic inductance during clamping.
It operates across –40 °C to +125 °C junction temperature, supports 6 GHz signal bandwidth with <0.4 pF I/O-to-ground capacitance, and maintains ≤5 V clamping at 4 A TLP while delivering ±3 A IEC 61000-4-5 (8/20 μs) surge capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Channel Count | 4 independent I/O channels protected simultaneously |
| Line-to-Line Capacitance | 0.15 pF - preserves signal integrity up to 6 GHz in HDMI/USB 3.1 Gen2 links |
| ESD Rating (IEC 61000-4-2) | ±12 kV contact / ±15 kV air - meets Level 4 immunity without external shielding |
| Clamping Voltage (TLP, 4 A) | ≤5 V (positive) / ≤–4 V (negative) - limits stress on downstream PHY receivers |
| Reverse Working Voltage (VRWM) | 5 V - compatible with 3.3 V and 5 V high-speed interface supply rails |
| Dynamic Resistance (RDNY) | 0.40–0.75 Ω - ensures fast, low-overshoot clamping response during fast transients |
| Junction Temp Range | –40 °C to +125 °C - supports operation in automotive infotainment and industrial display environments |
Pinout & Package
AOZ8846DT-05 is housed in a RoHS-compliant, halogen-free 1.3 mm × 0.8 mm × 0.4 mm DFN-5 package with exposed pad (no thermal pad connection required). The pinout enables flow-through PCB routing for HDMI and USB differential pairs without trace bending.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CH1 I/O | Protected data line input/output (e.g., HDMI TX0+ or USB SSTX+) |
| 2 | VN | Common negative reference node tied internally to TVS cathode and steering diode anodes |
| 3 | CH2 I/O | Protected data line input/output (e.g., HDMI TX0– or USB SSTX–) |
| 4 | CH3 I/O | Protected data line input/output (e.g., HDMI RX0+ or USB SSRX+) |
| 5 | CH4 I/O | Protected data line input/output (e.g., HDMI RX0– or USB SSRX–) |
Key Features
| Feature | Design Value |
|---|---|
| Flow-through pinout | Enables straight trace routing under device - eliminates stubs and impedance discontinuities in HDMI/USB layouts |
| Ultra-low line-to-line capacitance | 0.15 pF - minimizes insertion loss and crosstalk in 5+ Gbps serial links |
| Integrated steering + TVS architecture | Eight discrete steering diodes plus one TVS in one die - reduces board area vs. discrete solutions |
| IEC 61000-4-5 compliance | ±3 A (8/20 μs) surge rating - protects against lightning-induced surges on external ports |
| High-temp reliability | Rated for 125 °C junction - suitable for thermally constrained set-top boxes and digital TVs |
Applications
| HDMI 2.0 Interface Protection | USB 3.1 Gen2 Port Protection |
|---|---|
|
Use Scenario: Protecting HDMI 2.0 source and sink ports in digital TVs and AV receivers from ESD during cable hot-plug events. IC Role / Device Role / Timing Role: Transient voltage suppressor array placed at connector edge to clamp ESD before reaching HDMI transmitter/receiver PHY. Use Value: 0.15 pF line-to-line capacitance prevents signal degradation at 6 Gbps per lane, maintaining TMDS eye diagram integrity. |
Use Scenario: Securing USB 3.1 Gen2 Type-A and Type-C receptacles in notebook computers and docking stations against contact ESD. IC Role / Device Role / Timing Role: Four-channel TVS array deployed on SSTX+/SSTX–/SSRX+/SSRX– lanes to limit transient overshoot during plug insertion. Use Value: ≤5 V clamping at 4 A TLP ensures USB PHY I/O remains within absolute maximum ratings during ±12 kV contact discharge. |
| Set-Top Box Video Output | Video Graphics Card I/O Protection |
|
Use Scenario: Shielding HDMI output circuitry in cable/satellite set-top boxes operating in uncontrolled residential environments. IC Role / Device Role / Timing Role: ESD protection device mounted directly at HDMI connector with minimal trace length to reduce inductive overshoot. Use Value: DFN-5 footprint and flow-through layout allow placement without rerouting high-speed traces, preserving layout efficiency. |
Use Scenario: Safeguarding dual HDMI and DisplayPort outputs on discrete GPUs used in gaming and professional workstations. IC Role / Device Role / Timing Role: Multi-channel TVS array protecting multiple high-bandwidth video interfaces on same PCB edge. Use Value: Single-device 4-channel protection reduces BOM count and assembly cost versus discrete diode arrays. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J5.0A | Single-channel, 5.0 V VRWM, 600 W peak power, 30 pF I/O-to-ground capacitance | Requires four separate devices and larger board area; unsuitable for >1 Gbps data rates due to high capacitance | Only viable for low-speed legacy interfaces (e.g., UART, I²C) where capacitance is non-critical |
| SP3222-05UTG | 4-channel, 5.0 V VRWM, 0.3 pF line-to-line capacitance, ±12 kV ESD, SOT-23-6 package | Larger 2.9 mm × 1.6 mm footprint; higher 0.3 pF capacitance degrades signal integrity above 3 Gbps | Better for USB 2.0 or HDMI 1.4 designs but not recommended for HDMI 2.0 or USB 3.1 Gen2 due to bandwidth limitation |
Compared with SMA6J5.0A and SP3222-05UTG, the AOZ8846DT-05 uniquely combines 0.15 pF line-to-line capacitance, DFN-5 flow-through routing, and guaranteed 6 GHz bandwidth - making it the only option qualified for HDMI 2.0 and USB 3.1 Gen2 full-speed protection without signal compromise.
Availability
AOZ8846DT-05 is available at Aetrix Electronics and suitable for HDMI 2.0 interfaces, USB 3.1 Gen2 ports, and set-top box video outputs requiring stable component supply, long-term lifecycle support, and consistent RoHS/halogen-free compliance.
Supply support for AOZ8846DT-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 power management and protection applications.
The AOZ8846DT-05 belongs to AOS's ultra-low-capacitance TVS array product line, engineered specifically for ESD robustness and signal fidelity in next-generation high-speed digital interfaces including HDMI, USB, and MDDI.
FAQ
What is the maximum signal bandwidth supported by the AOZ8846DT-05?
The AOZ8846DT-05 supports up to 6 GHz signal bandwidth, verified by its 0.15 pF line-to-line capacitance and low insertion loss characteristics. This enables full compliance with HDMI 2.0 (6 Gbps per lane) and USB 3.1 Gen2 (10 Gbps) data rates. The AOZ8846DT-05 achieves this through optimized internal diode geometry and minimized package parasitics in the DFN-5 construction.
Does the AOZ8846DT-05 require an external VCC connection for operation?
No, the AOZ8846DT-05 does not require an external VCC connection. Its internal architecture uses bidirectional steering diodes that route transients to either the system ground or the local I/O rail - no active bias or power supply is needed. The AOZ8846DT-05 functions passively and remains effective even when the host system is unpowered.
How is the AOZ8846DT-05 pinout optimized for HDMI and USB layout?
The AOZ8846DT-05 uses a flow-through pinout (Pins 1, 3, 4, 5 = I/O; Pin 2 = VN) that allows differential pairs to enter and exit the same side of the package without trace bends or vias. This eliminates stubs and impedance mismatches. The AOZ8846DT-05's layout compatibility is explicitly validated in Figures 3 and 4 of its datasheet for HDMI and USB 3.0/3.1 routing.
What is the clamping voltage of the AOZ8846DT-05 under IEC 61000-4-5 surge conditions?
Under IEC 61000-4-5 (8/20 μs waveform), the AOZ8846DT-05 clamps to ≤4 V (positive) and ≤–2.5 V (negative) at ±3 A peak current. This low clamping level ensures protected ICs remain within safe operating limits during lightning-induced surges. The AOZ8846DT-05 achieves this via low dynamic resistance (0.4–0.75 Ω) and optimized junction design.
Is the AOZ8846DT-05 compatible with lead-free reflow soldering processes?
Yes, the AOZ8846DT-05 is rated for standard lead-free reflow profiles, including JEDEC J-STD-020 Rev. E. Its DFN-5 package is qualified for peak temperatures up to 260 °C for 30 seconds. The AOZ8846DT-05's RoHS-compliant and halogen-free construction meets IPC/JEDEC industry requirements for modern SMT assembly lines.
AOZ8846DT-05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 5-XFDFN
- 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:
- 4V (Typ)
- Current - Peak Pulse (10/1000µs):
- 3A
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- DVI, HDMI, USB
- Capacitance @ Frequency:
- 0.3pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 5-DFN (1.3x0.8)
AOZ8846DT-05 FAQ
1.How can I place an order for AOZ8846DT-05 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8846DT-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 AOZ8846DT-05 reliable?
The price and inventory of AOZ8846DT-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8846DT-05 is usually 5 days.
3.What payment methods are accepted for AOZ8846DT-05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8846DT-05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8846DT-05?
AOZ8846DT-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8846DT-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 AOZ8846DT-05?
For technical support, including AOZ8846DT-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8846DT-05 requirements.
6.How does Aetrix verify that AOZ8846DT-05 is sourced from the original manufacturer or authorized distributors?
All AOZ8846DT-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 AOZ8846DT-05 meets industry standards.
7.What is the process for return or replacement of AOZ8846DT-05?
All AOZ8846DT-05 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8846DT-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 AOZ8846DT-05 part is unused and in its original packaging.
Return procedure for AOZ8846DT-05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8846DT-05 Tags
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