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Alpha & Omega Semiconductor Inc. AOZ8906CI
- Part No.:
- AOZ8906CI
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- SOT-23-6
- Datasheet:
-
AOZ8906CI.pdf
- Description:
- TVS DIODE 5.5VWM 8VC SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:6,018
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Product details
Overview
AOZ8906CI from Alpha and Omega Semiconductor is an ultra-low capacitance transient voltage suppressor (TVS) diode array designed to protect four high-speed data lines-such as HDMI 1.3, USB 2.0, MDDI, and SATA-from ESD, EFT, and lightning surges. It features 1 pF line-to-line capacitance, ±30 kV IEC 61000-4-2 contact/air discharge rating, 5.5 V reverse working voltage, and clamps transients to ≤5.2 V (positive) / ≤−9.9 V (negative) at 30 A.
For engineers reviewing the AOZ8906CI datasheet, pinout, applications, or equivalent options, key selection criteria include its SOT23-6L package footprint, 1 pF inter-channel capacitance for signal integrity preservation, low 5.0 V operating voltage compatibility, and verified IEC 61000-4-2/4-4/4-5 compliance for consumer and industrial interface protection.
Technical Context
The AOZ8906CI integrates eight surge-rated steering diodes and a shared TVS element in a single SOT23-6L package, enabling bidirectional transient redirection-either to VN (power rail) or ground-depending on polarity. Its architecture supports simultaneous protection of four independent I/O channels with dedicated internal paths per channel.
It operates within −40°C to +85°C ambient temperature, with junction ratings up to +125°C, and maintains stable clamping performance across 7 A (8/20 µs lightning), 16–30 A TLP pulses, and ±30 kV ESD events-all while delivering sub-1.5 pF typical channel capacitance at 0 V bias and 1 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage (VRWM) | 5.5 V - ensures safe operation above 5.0 V nominal supply without leakage or conduction during normal signaling |
| Line-to-Line Capacitance (Cj) | 1.0 pF typ - preserves signal integrity on USB 2.0/HDMI 1.3 differential pairs with minimal rise-time degradation |
| ESD Rating (IEC 61000-4-2) | ±30 kV contact & air - meets Level 4 immunity for end-equipment compliance in consumer electronics |
| Clamp Voltage (VCL) | 5.2 V (pos) / −9.9 V (neg) at 30 A - limits voltage overshoot to levels compatible with 3.3 V/5 V I/O receivers |
| Dynamic Resistance (RDYN) | 0.15 Ω (pos) / 0.3 Ω (neg) - enables fast energy dissipation with low voltage drop during high-current transients |
| Operating Temperature Range | −40°C to +85°C ambient - supports deployment in set-top boxes, notebooks, and flat-panel displays without derating |
Pinout & Package
SOT23-6L package: 6-pin surface-mount, RoHS-compliant, halogen-free, 2.9 mm × 1.6 mm × 1.1 mm body height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CH1) | I/O Channel 1 Anode | Steering path for transient current from CH1 to VN or GND |
| 2 (VN) | Power Rail Terminal | Internal connection point for positive-side clamping; ties to +5 V supply |
| 3 (CH2) | I/O Channel 2 Anode | Independent steering path for CH2; electrically isolated from CH1 |
| 4 (CH4) | I/O Channel 4 Anode | Supports full four-channel protection with shared VN and GND reference |
| 5 (NC) | No Connect | Internally unconnected; must remain floating per datasheet |
| 6 (CH3) | I/O Channel 3 Anode | Completes four-channel configuration; pin 6 assigned to CH3 per top-view layout |
Key Features
| Feature | Design Value |
|---|---|
| Four-channel I/O protection | Simultaneous safeguarding of HDMI D+/D−, USB DP/DM, or MDDI data pairs in one compact device |
| 1 pF line-to-line capacitance | Enables >480 Mbps USB 2.0 and HDMI 1.3 compliance without signal distortion or eye closure |
| ±30 kV ESD robustness | Eliminates need for external ESD staging in front-end interface designs targeting IEC 61000-4-2 Level 4 |
| Low 5.0 V operating voltage | Direct compatibility with standard 5 V bus-powered peripherals without level-shifting circuitry |
| Integrated steering + TVS architecture | Reduces BOM count by replacing discrete diode+TVS combinations while maintaining low-inductance paths |
Applications
| HDMI Interface Protection | USB 2.0 Port Protection |
|---|---|
Use Scenario: HDMI 1.3 ports on digital TVs, monitors, and set-top boxes exposed to user-handling ESD. IC Role / Device Role / Timing Role: Transient voltage suppressor array providing bidirectional clamping between TMDS data pairs and +5 V power rail. Use Value: 1 pF capacitance prevents signal integrity loss at 1.65 Gbps; ±30 kV ESD rating ensures no latch-up or damage during hot-plug events. | Use Scenario: Downstream USB 2.0 ports on notebook computers and docking stations. IC Role / Device Role / Timing Role: Four-channel ESD protector for DP/DM/VBUS/GND lines with integrated steering to VN. Use Value: Clamps 30 A transients to ≤5.2 V, protecting USB PHY transceivers while maintaining <100 ps response time. |
| MDDI Mobile Interface | SATA Data Link Protection |
Use Scenario: MDDI (Mobile Display Digital Interface) links in smartphones and tablets connecting application processors to display modules. IC Role / Device Role / Timing Role: Low-capacitance TVS array placed inline with high-speed differential video/data lanes. Use Value: Sub-1.5 pF inter-pin capacitance avoids jitter accumulation and timing skew across multi-gigabit MDDI streams. | Use Scenario: SATA II (3 Gbps) host/device connectors in computing and storage enclosures. IC Role / Device Role / Timing Role: Transient suppressor for SATA TX/RX differential pairs referenced to +5 V and chassis ground. Use Value: 7 A lightning surge capability (IEC 61000-4-5) protects link layer controllers from field-induced surges without degrading 3 Gbps eye diagram. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J5.0A | Single-channel, 5.0 V unidirectional TVS; 150 pF capacitance; DO-214AC package | Requires four discrete devices for four-line protection; unsuitable for HDMI/USB 2.0 due to high capacitance | Select only for low-speed DC power rail protection where bandwidth is not critical |
| SP1003-04UTG | Four-channel, 5.0 V bi-directional array; 0.6 pF capacitance; SOT-23-6 package; ±30 kV ESD | Lower capacitance and tighter VBR tolerance (6.0–6.8 V), but rated only to +70°C ambient | Prefer for space-constrained, high-reliability USB 2.0 designs operating below 70°C ambient |
Compared with SMA6J5.0A and SP1003-04UTG, the AOZ8906CI uniquely balances 1 pF capacitance, −40°C to +85°C operation, and integrated four-channel steering in SOT23-6L-making it optimal for consumer-grade HDMI/USB interfaces requiring extended temperature support without layout bloat.
Availability
AOZ8906CI is available at Aetrix Electronics and suitable for HDMI 1.3 interfaces, USB 2.0 port protection, and MDDI mobile display links requiring stable component supply across high-volume consumer electronics production cycles.
Supply support for AOZ8906CI 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 AOZ8906CI belongs to AOS's ultra-low-capacitance TVS array product line, engineered specifically for ESD and surge protection of high-speed serial interfaces without compromising signal fidelity.
FAQ
What is the maximum clamping voltage of the AOZ8906CI under a 30 A transient?
The AOZ8906CI clamps positive transients to 5.2 V and negative transients to −9.9 V when subjected to a 30 A, 100 ns Transmission Line Pulse (TLP) applied to any I/O pin relative to ground. This performance is measured per datasheet conditions and ensures compatibility with 5 V-tolerant I/O structures in HDMI, USB 2.0, and MDDI receivers. The AOZ8906CI maintains this clamping behavior across its full operating temperature range.
Does the AOZ8906CI support bidirectional ESD protection?
Yes, the AOZ8906CI provides full bidirectional ESD protection per IEC 61000-4-2, with ±30 kV contact and air discharge ratings. Its internal steering diode architecture routes positive transients toward the VN rail and negative transients toward ground, enabling symmetrical clamping on all four protected channels. This bidirectional behavior is confirmed in the AOZ8906CI datasheet's Electrical Characteristics table and Typical Performance Curves.
Which interfaces is the AOZ8906CI specifically validated for?
The AOZ8906CI is explicitly validated for HDMI 1.3, USB 2.0, MDDI, and SATA interfaces, as stated in its General Description and Applications sections. Validation includes 1 pF line-to-line capacitance ensuring signal integrity at 480 Mbps (USB 2.0) and 1.65 Gbps (HDMI 1.3), along with IEC 61000-4-2/4-4/4-5 compliance required for these interface standards. The AOZ8906CI is not rated for USB 3.x or HDMI 2.0+ due to higher bandwidth requirements.
What is the function of the NC pin on the AOZ8906CI?
Pin 5 of the AOZ8906CI is designated NC (No Connect) and is internally unconnected. Per the official datasheet Pin Configuration diagram and Absolute Maximum Ratings table, this pin must remain electrically floating-neither tied to ground nor to any voltage rail. Leaving the NC pin unconnected avoids parasitic coupling or unintended current paths that could degrade ESD performance or cause latch-up in the AOZ8906CI.
Is the AOZ8906CI compliant with RoHS and halogen-free requirements?
Yes, the AOZ8906CI is RoHS compliant and halogen-free, as confirmed in the Ordering Information section of the official datasheet (Rev. 3.1, September 2021). It meets AOS Green Product specifications, which mandate reduced halogen content and full compliance with EU RoHS Directive 2011/65/EU. The SOT23-6L package carries appropriate marking and documentation for environmental compliance traceability in AOZ8906CI shipments.
AOZ8906CI Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- SOT-23-6
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 4
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5.5V (Max)
- Voltage - Breakdown (Min):
- 6.6V
- Voltage - Clamping (Max) @ Ipp:
- 8V
- Current - Peak Pulse (10/1000µs):
- 7A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- Yes
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.5pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
AOZ8906CI FAQ
1.How can I place an order for AOZ8906CI through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8906CI 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 AOZ8906CI reliable?
The price and inventory of AOZ8906CI are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8906CI is usually 5 days.
3.What payment methods are accepted for AOZ8906CI?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8906CI transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8906CI?
AOZ8906CI orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8906CI 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 AOZ8906CI?
For technical support, including AOZ8906CI datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8906CI requirements.
6.How does Aetrix verify that AOZ8906CI is sourced from the original manufacturer or authorized distributors?
All AOZ8906CI 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 AOZ8906CI meets industry standards.
7.What is the process for return or replacement of AOZ8906CI?
All AOZ8906CI units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8906CI, 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 AOZ8906CI part is unused and in its original packaging.
Return procedure for AOZ8906CI:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8906CI Tags
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