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Alpha & Omega Semiconductor Inc. AOZ8811DT-03
- Part No.:
- AOZ8811DT-03
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 2-UDFN
- Datasheet:
-
AOZ8811DT-03.pdf
- Description:
- TVS DIODE 3.6VWM 7VC 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,731
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Product details
Overview
AOZ8811DT-03 from Alpha and Omega Semiconductor is a unidirectional ultra-low capacitance TVS diode in a DFN 1.0 × 0.6 mm package, rated for 3.6 V working peak reverse voltage, 0.5 pF capacitance, ±20 kV IEC 61000-4-2 contact ESD protection, 6 A peak pulse current, and -40°C to +85°C ambient operation - designed to protect high-speed data lines in portable electronics.
For engineers reviewing the AOZ8811DT-03 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage (≤7.0 V at 6 A), low leakage (<0.1 µA), fast transient response, board space constraints, and compliance with IEC 61000-4-2 Level 4 ESD immunity requirements.
Technical Context
The AOZ8811DT-03 implements a single-line unidirectional TVS structure optimized for signal integrity preservation on high-speed interfaces. Its 0.5 pF junction capacitance and 3.6 V VRWM enable minimal loading on USB 2.0, HDMI, or MIPI D-PHY lines without degrading edge rates or eye diagrams.
It operates within a -40°C to +85°C ambient range and achieves clamping voltages of 2.5 V (at 1 A), 5.0 V (at 4 A), and 7.0 V (at 6 A) under 8/20 µs transients, with breakdown voltage specified at 4.0 V min and 6.0 V max at 1 mA test current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 3.6 V - Maximum continuous reverse operating voltage before conduction begins; ensures no interference with 3.3 V logic signaling. |
| CJ @ 0 V, 1 MHz | 0.5 pF - Ultra-low capacitance preserves signal integrity on >100 Mbps data lines such as USB 2.0 or SD card interfaces. |
| VCL @ IPP = 6 A | 7.0 V max - Clamping voltage limits transient overvoltage to safe levels for downstream 5 V-tolerant receivers. |
| ESD Rating (IEC 61000-4-2) | ±20 kV contact / ±20 kV air - Exceeds Level 4 immunity requirement, enabling robust front-end protection without external shielding. |
| IPP (8/20 µs) | 6 A - Sustains high-energy surges from cable discharge events while maintaining low clamping performance. |
| Package | DFN 1.0 × 0.6 mm - Enables placement directly at connector entry points with minimal PCB footprint and parasitic inductance. |
Pinout & Package
AOZ8811DT-03 uses a 2-pin DFN 1.0 × 0.6 mm package with exposed pad (no thermal pad connection required per datasheet). Pin 1 is cathode (anode tied to ground); Pin 2 is anode (ground connection).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode | Connected to protected signal line; conducts transient current to ground when voltage exceeds VRWM. |
| Pin 2 | Anode | Connected to system ground; completes ESD current path with minimal loop inductance due to compact DFN layout. |
Key Features
| Feature | Design Value |
|---|---|
| IEC 61000-4-2 ESD rating | ±20 kV contact/air - Eliminates need for secondary ESD stages in handheld device designs. |
| Clamping voltage at 1 A | 2.5 V max - Protects 1.8 V/3.3 V I/O pins without forward-biasing internal receiver ESD structures. |
| Reverse leakage at VRWM | 0.1 µA max - Prevents DC loading or battery drain in always-on portable applications. |
| Breakdown voltage tolerance | 4.0–6.0 V - Ensures reliable triggering margin above 3.3 V supply rails while avoiding false triggering. |
Applications
| USB 2.0 Data Lines | MIPI D-PHY Interfaces |
|---|---|
Use Scenario: Protection of differential USB 2.0 D+ and D− lines against connector hot-plug transients and user-hand ESD events. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed inline between connector and PHY IC, clamping surges before they reach the transceiver. Use Value: 0.5 pF capacitance avoids signal degradation at 480 Mbps; 7.0 V clamping prevents damage to 3.3 V tolerant PHY inputs. | Use Scenario: ESD safeguard for camera module MIPI D-PHY clock and data lanes in smartphones and tablets. IC Role / Device Role / Timing Role: Single-line TVS on each lane (CLK, DATA0–DATA3), grounded via shortest possible trace to minimize inductance. Use Value: Sub-1 pF capacitance maintains eye diagram integrity at 1.5 Gbps; ±20 kV contact rating meets IEC 61000-4-2 compliance for consumer drop-test scenarios. |
| Smartphone Keypad Lines | Portable GPS RF Front-End |
Use Scenario: Transient suppression on mechanical keypad scan lines exposed to user touch in ruggedized handheld devices. IC Role / Device Role / Timing Role: Discrete TVS on each row/column line, placed adjacent to microcontroller GPIO pins. Use Value: Low 3.6 V VRWM matches typical keypad interface voltage; 0.1 µA leakage avoids false key detection during sleep mode. | Use Scenario: ESD protection of LNA input pins in GPS/GNSS front-end modules where RF sensitivity must be preserved. IC Role / Device Role / Timing Role: TVS diode installed between antenna feed and LNA input, with ground return routed under device body. Use Value: 0.5 pF capacitance introduces negligible impedance shift at 1.575 GHz; clamping below 7 V prevents LNA gate oxide breakdown. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ3.3A | DO-214AC package (4.5 × 2.7 mm), 3.3 V VRWM, 13.3 V clamping at 10.3 A, 350 pF capacitance | Not suitable for >10 Mbps data lines due to high capacitance; intended for power rail or low-speed I/O protection | Select only if board space allows larger package and signal speed < 1 Mbps. |
| TPD4E05U06DQAR | 4-channel array in DQFN 1.6 × 1.0 mm, 5.5 V VRWM, 0.5 pF per channel, ±12 kV IEC 61000-4-2 | Multi-line solution for parallel buses; higher VRWM reduces margin for 3.3 V systems | Prefer for multi-line protection where shared ground and routing efficiency outweigh single-line optimization. |
Compared with SMAJ3.3A and TPD4E05U06DQAR, the AOZ8811DT-03 uniquely balances ultra-low capacitance, compact size, and high ESD rating for single-line high-speed interfaces - making it optimal where signal fidelity, board area, and IEC-level robustness are simultaneously critical.
Availability
AOZ8811DT-03 is available at Aetrix Electronics and suitable for portable handheld devices, notebook computers, digital cameras, and GPS receivers requiring stable component supply and RoHS-compliant ESD protection solutions.
Supply support for AOZ8811DT-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 AOZ8811DT-03 belongs to AOS's ultra-low-capacitance TVS diode product line, engineered specifically for ESD protection of high-speed data interfaces in space-constrained portable electronics.
FAQ
What is the maximum clamping voltage of the AOZ8811DT-03 under surge conditions?
The AOZ8811DT-03 has a maximum clamping voltage of 7.0 V at 6 A peak pulse current (8/20 µs waveform), 5.0 V at 4 A, and 2.5 V at 1 A. These values ensure downstream 3.3 V or 5 V logic circuits remain within safe operating limits during ESD or lightning-induced transients.
Does the AOZ8811DT-03 support bidirectional ESD protection?
No, the AOZ8811DT-03 is a unidirectional TVS diode configured for single-line protection with cathode-to-signal and anode-to-ground orientation. It does not provide symmetrical clamping for AC-coupled or differential lines without additional circuitry.
What is the junction temperature range for the AOZ8811DT-03?
The AOZ8811DT-03 has a junction temperature range of -40°C to +125°C, supporting reliable operation in thermally demanding environments such as enclosed smartphone chassis or automotive infotainment displays.
Is the AOZ8811DT-03 compatible with lead-free reflow soldering processes?
Yes, the AOZ8811DT-03 is RoHS compliant and qualified for standard lead-free reflow profiles, including peak temperatures up to 260°C for 10 seconds, per J-STD-020 moisture sensitivity level 1 rating.
How does the 0.5 pF capacitance of the AOZ8811DT-03 impact high-speed signal integrity?
The 0.5 pF capacitance of the AOZ8811DT-03 introduces negligible loading on signals up to 480 Mbps (USB 2.0) and 1.5 Gbps (MIPI D-PHY), preserving rise/fall times and eye opening. Measured normalized capacitance remains stable below 1.0 across 0–3.3 V reverse bias, ensuring consistent performance.
AOZ8811DT-03 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 2-UDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.6V (Max)
- Voltage - Breakdown (Min):
- 4V
- Voltage - Clamping (Max) @ Ipp:
- 7V
- Current - Peak Pulse (10/1000µs):
- 6A (8/20µs)
- Power - Peak Pulse:
- 40W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.5pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-DFN (1x0.6)
AOZ8811DT-03 FAQ
1.How can I place an order for AOZ8811DT-03 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8811DT-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 AOZ8811DT-03 reliable?
The price and inventory of AOZ8811DT-03 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8811DT-03 is usually 5 days.
3.What payment methods are accepted for AOZ8811DT-03?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8811DT-03 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8811DT-03?
AOZ8811DT-03 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8811DT-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 AOZ8811DT-03?
For technical support, including AOZ8811DT-03 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8811DT-03 requirements.
6.How does Aetrix verify that AOZ8811DT-03 is sourced from the original manufacturer or authorized distributors?
All AOZ8811DT-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 AOZ8811DT-03 meets industry standards.
7.What is the process for return or replacement of AOZ8811DT-03?
All AOZ8811DT-03 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8811DT-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 AOZ8811DT-03 part is unused and in its original packaging.
Return procedure for AOZ8811DT-03:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8811DT-03 Tags
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