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Alpha & Omega Semiconductor Inc. AOZ8001DI
- Part No.:
- AOZ8001DI
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 6-UFDFN
- Datasheet:
-
AOZ8001DI.pdf
- Description:
- TVS DIODE 5VWM 14.5VC 6DFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,584
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Product details
Overview
AOZ8001DI from Alpha & Omega Semiconductor is a transient voltage suppressor (TVS) diode array designed to protect four high-speed data lines-such as USB 2.0 D+/D− and Ethernet differential pairs-from ESD (±15kV air, ±8kV contact), lightning surges (5A, 8/20µs), and HBM (±15kV). It features ultra-low I/O-to-ground capacitance of 1.0pF (typ), clamping voltages of 10.0V (positive, 1A) and −2.0V (negative, 1A), and operates at 5.0V working voltage in a RoHS-compliant DFN 1.6mm × 1.6mm package.
For engineers reviewing the AOZ8001DI datasheet, pinout, applications, or equivalent options, this device is selected for high-fidelity signal integrity preservation in USB 2.0, DVI, IEEE 1394, and 10/100/1000 Ethernet interfaces where sub-1.2pF channel capacitance, flow-through layout compatibility, and low clamping voltage are critical design requirements.
Technical Context
The AOZ8001DI integrates four steering diodes and one bidirectional TVS in a single DFN-6 package, enabling symmetrical transient diversion from each I/O line to either VP (pin 5) or ground (pin 1). Its architecture supports dual-rail clamping with independent forward conduction paths and shared reference rails.
It delivers specified clamping performance across temperature (−40°C to +85°C ambient) and meets IEC 61000-4-2 Level 4, IEC 61000-4-5 (5A), and HBM ±15kV standards. The 1.0pF I/O-to-ground capacitance and 0.12pF I/O-to-I/O capacitance ensure minimal signal distortion on 480Mbps USB 2.0 channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | ±15kV air discharge, ±8kV contact discharge - meets Level 4 immunity without external filtering |
| Clamp Voltage (IPP = 1A) | +10.0V / −2.0V - limits transient overshoot below IC absolute maximum ratings |
| I/O-to-Ground Capacitance | 1.0pF (typ) at 1MHz - preserves signal integrity on USB 2.0 and DVI links |
| Reverse Working Voltage (VRWM) | 5.5V - supports 5V nominal bus operation with 10% margin |
| Peak Pulse Current (8/20µs) | 5A - handles lightning-induced surges per IEC 61000-4-5 |
| Operating Temperature Range | −40°C to +85°C ambient - qualified for industrial and consumer end equipment |
| Package | DFN 1.6mm × 1.6mm - enables compact, flow-through PCB layout with minimal trace inductance |
Pinout & Package
AOZ8001DI uses a RoHS-compliant DFN-6 package (1.6mm × 1.6mm, 0.5mm pitch) with exposed thermal pad (no electrical connection). The flow-through layout minimizes parasitic inductance and simplifies routing between I/O connectors and protected ICs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Ground (GND) | Common return path for negative transients and ESD current dissipation |
| 2 | Channel 1 Input (CH1) | Protected I/O line 1 (e.g., USB D+); steers transients to GND or VP |
| 3 | No Connect (NC) | Internally unconnected; must be left floating or tied to GND per layout guidelines |
| 4 | No Connect (NC) | Internally unconnected; must be left floating or tied to GND per layout guidelines |
| 5 | Positive Supply (VP) | Reference rail for positive transient clamping; connects to 3.3V or 5V system rail |
| 6 | Channel 2 Input (CH2) | Protected I/O line 2 (e.g., USB D−); steers transients to GND or VP |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low I/O-to-ground capacitance | 1.0pF (typ) - maintains >40dB insertion loss up to 1GHz, preserving USB 2.0 eye diagram |
| Dual-rail clamping architecture | Independent VP and GND references - enables bidirectional surge suppression without DC bias dependency |
| Flow-through DFN-6 layout | Pins 2–6 aligned linearly with GND at pin 1 - allows straight trace routing from connector to IC, minimizing loop area |
| Four-line protection in one device | Two differential pairs (CH1/CH2) with shared VP/GND - reduces component count vs. discrete TVS solutions |
| Industrial temperature qualification | −40°C to +85°C ambient - validated for sustained operation in notebook, monitor, and embedded display systems |
Applications
| USB 2.0 High-Speed Port Protection | DVI/HDMI Data Lane Protection |
|---|---|
|
Use Scenario: Protecting D+ and D− lines of a USB 2.0 host or device port against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Transient voltage suppressor array providing bidirectional clamping to VP (5V) and GND. Use Value: 1.0pF capacitance prevents signal rise-time degradation; ±8kV contact ESD rating exceeds USB-IF compliance thresholds. |
Use Scenario: Shielding TMDS clock and data channels in flat-panel display interfaces from cable-discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS array clamping differential pairs to maintain signal fidelity at 1.65Gbps. Use Value: 0.12pF I/O-to-I/O capacitance minimizes crosstalk; flow-through pinout supports matched-length trace routing. |
| IEEE 1394 (FireWire) Interface | 10/100/1000 Ethernet PHY Protection |
|
Use Scenario: Safeguarding TPBIASx, TPAx+, TPAx−, TPBx+, TPBx− pins on FireWire PHYs against connector-induced ESD. IC Role / Device Role / Timing Role: Four-channel TVS array with independent steering paths per differential pair. Use Value: Dual-rail clamping (VP/GND) accommodates FireWire's asymmetric voltage tolerances without compromising speed. |
Use Scenario: Protecting TRD0+/TRD0− through TRD3+/TRD3− Ethernet magnetics outputs from lightning surges and ESD. IC Role / Device Role / Timing Role: Surge-rated TVS array rated for 5A (8/20µs) per IEC 61000-4-5. Use Value: 10.0V/−2.0V clamping at 1A ensures PHY inputs remain within safe operating area during transient events. |
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 | Single-channel, DO-214AC package; 5.0V VRWM; 600W peak power; 65pF I/O-to-GND capacitance | Not suitable for high-speed data lines due to excessive capacitance; intended for power rail protection | Select only for low-frequency or power-line applications where bandwidth is not constrained |
| TPD2E001DRYR | Two-channel, DRY (X2SON-6) package; 5.0V VRWM; ±8kV contact ESD; 1.0pF I/O-to-GND capacitance | Lacks VP rail - clamps only to GND; no positive-rail steering capability | Use when system lacks a stable VP supply or requires simplified single-rail grounding topology |
Compared with SMA6J5.0A and TPD2E001DRYR, the AOZ8001DI uniquely combines dual-rail (VP/GND) clamping, four-line protection, and 1.0pF capacitance in a flow-through DFN-6 - making it the only option among the three qualified for simultaneous USB 2.0 D+/D− and Ethernet differential pair protection without signal integrity compromise.
Availability
AOZ8001DI is available at Aetrix Electronics and suitable for USB 2.0 interface protection, flat-panel display video link safeguarding, and 10/100/1000 Ethernet PHY surge mitigation requiring stable component supply across industrial, computing, and consumer electronics programs.
Supply support for AOZ8001DI 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 & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in MOSFETs, TVS diodes, and power ICs for efficiency-critical applications.
The AOZ8001DI belongs to AOS's ultra-low-capacitance TVS diode array product line, engineered specifically to protect high-speed serial interfaces-including USB, DVI, IEEE 1394, and Ethernet-against ESD and lightning while preserving signal fidelity.
FAQ
What is the primary circuit role of the AOZ8001DI in a USB 2.0 design?
The AOZ8001DI serves as a bidirectional transient voltage suppressor array that protects the D+ and D− differential data lines of a USB 2.0 port. It routes ESD and surge currents away from the USB controller IC by steering transients to either the VP supply rail (pin 5) or ground (pin 1), maintaining signal integrity via its 1.0pF I/O-to-ground capacitance. This function is explicitly validated in the AOZ8001DI datasheet's Figure 1 and Electrical Characteristics table.
Does the AOZ8001DI support clamping to both positive and negative rails?
Yes, the AOZ8001DI supports dual-rail clamping: positive transients are steered to VP (pin 5), and negative transients are directed to GND (pin 1). This is enabled by its internal steering diode architecture, confirmed by the "Clamping Voltage vs. Peak Pulse Current" graph on page 4 of the AOZ8001DI datasheet and the VCL specifications for both polarities in the Electrical Characteristics table.
What is the maximum allowable operating temperature for the AOZ8001DI?
The AOZ8001DI is rated for continuous operation across an ambient temperature range of −40°C to +85°C, as stated in the "Maximum Operating Ratings" table on page 2 of the AOZ8001DI datasheet. Its junction temperature limit is −40°C to +125°C, ensuring reliability in industrial and consumer environments where thermal margins are constrained.
Can the AOZ8001DI be used to protect four independent single-ended signals?
No - the AOZ8001DI is configured for two differential pairs (CH1 and CH2), not four independent single-ended lines. Its pinout (pins 2 and 6) and internal structure support only two protected channels, each with bidirectional clamping capability. Using it for four single-ended signals would leave two channels unprotected and violate the device's specified channel count and routing architecture.
Is the AOZ8001DI compatible with lead-free reflow soldering processes?
Yes, the AOZ8001DI is RoHS compliant and qualified for both lead-free and SnPb assembly techniques, as explicitly stated in the General Description section on page 1 of the AOZ8001DI datasheet. Its DFN 1.6mm × 1.6mm package is rated for standard JEDEC J-STD-020 reflow profiles, including peak temperatures up to 260°C.
AOZ8001DI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 6-UFDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Steering (Rail to Rail)
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.6V
- Voltage - Clamping (Max) @ Ipp:
- 14.5V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- Yes
- Applications:
- Ethernet
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-DFN (1.6x1.6)
AOZ8001DI FAQ
1.How can I place an order for AOZ8001DI through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8001DI 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 AOZ8001DI reliable?
The price and inventory of AOZ8001DI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8001DI is usually 5 days.
3.What payment methods are accepted for AOZ8001DI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8001DI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8001DI?
AOZ8001DI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8001DI 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 AOZ8001DI?
For technical support, including AOZ8001DI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8001DI requirements.
6.How does Aetrix verify that AOZ8001DI is sourced from the original manufacturer or authorized distributors?
All AOZ8001DI 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 AOZ8001DI meets industry standards.
7.What is the process for return or replacement of AOZ8001DI?
All AOZ8001DI units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8001DI, 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 AOZ8001DI part is unused and in its original packaging.
Return procedure for AOZ8001DI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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