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Alpha & Omega Semiconductor Inc. AOZ8831DT-05
- Part No.:
- AOZ8831DT-05
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 2-XDFN
- Datasheet:
-
AOZ8831DT-05.pdf
- Description:
- TVS DIODE 5VWM 15VC 3DFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,420
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Product details
Overview
AOZ8831DT-05 from Alpha and Omega Semiconductor is an ultra-low-capacitance (0.22 pF), bi-directional TVS diode in a 1.0 × 0.6 mm DFN package, rated for 5 V working voltage and ±20 kV IEC 61000-4-2 ESD protection, designed to safeguard high-speed data lines such as USB 2.0 or HDMI interfaces against transients and electrostatic discharge.
For engineers reviewing the AOZ8831DT-05 datasheet, pinout, applications, or equivalent options, this device delivers verified clamping voltage ≤9.5 V at 6 A pulse, low leakage (<0.1 µA), and RoHS-compliant green packaging suitable for space-constrained portable electronics design.
Technical Context
The AOZ8831DT-05 implements a single-channel, bi-directional avalanche junction structure optimized for transient suppression on unidirectional signal paths. Its 5.5 V peak reverse voltage and 6 A 8/20 µs pulse rating enable robust protection against IEC 61000-4-5 surges while maintaining sub-0.35 pF max capacitance at 0 V bias.
Designed for operation from –40°C to +85°C ambient, the device achieves <4 V breakdown voltage tolerance (5.5–6.0 V) and clamps to ≤15 V at 6 A, with leakage current limited to 0.1 µA at 5 V - critical for preserving signal integrity in 5 V logic and interface circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 5 V - matches standard 5 V I/O rail systems without forward conduction during normal operation. |
| Capacitance (CJ) | 0.22 pF (typ), ≤0.35 pF (max) at 0 V / 1 MHz - preserves signal rise/fall times in >480 Mbps USB 2.0 links. |
| Clamping Voltage (VCL) | ≤9.5 V at IPP = 4 A - limits voltage overshoot to safe levels for 5 V-tolerant transceivers during ESD events. |
| ESD Rating | ±20 kV contact & air per IEC 61000-4-2 Level 4 - exceeds industrial immunity requirements for handheld interfaces. |
| Peak Pulse Current | 6 A (8/20 µs waveform) - withstands surge energy up to 90 W per IEC 61000-4-5. |
| Operating Temp Range | –40°C to +85°C ambient - supports deployment in consumer-grade portable devices without derating. |
Pinout & Package
Package: DFN 1.0 × 0.6 mm, 2-terminal, RoHS-compliant, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode/Cathode (bi-directional) | Common terminal for symmetrical transient clamping - connects to protected signal line; no polarity assignment required. |
| 2 | Anode/Cathode (bi-directional) | Second terminal completing the bi-directional TVS junction - ties to system ground or reference plane for return path. |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional ESD protection | Enables single-device protection of AC-coupled or differential signal lines without polarity constraints. |
| Ultra-low 0.22 pF capacitance | Minimizes insertion loss and distortion on high-frequency data paths including USB 2.0 and audio codecs. |
| Low 9.5 V clamping at 4 A | Prevents latch-up or damage in 5 V interface ICs by limiting transient overvoltage below absolute maximum ratings. |
| DFN 1.0 × 0.6 mm footprint | Reduces PCB area by >60% vs. SOD-323, enabling placement directly at connector entry points. |
Applications
| USB 2.0 Data Lines | Digital Camera Interface |
|---|---|
Use Scenario: Protecting D+ and D− pins of USB 2.0 ports in smartphones and tablets against user-handling ESD. IC Role / Device Role: Bi-directional TVS diode placed in series with each data line, referenced to ground. Use Value: 0.22 pF capacitance avoids signal integrity degradation at 480 Mbps, while ±20 kV ESD rating meets IEC 61000-4-2 compliance. | Use Scenario: Shielding MIPI CSI-2 clock and data lanes in compact digital cameras from board-level ESD coupling. IC Role / Device Role: Single-line transient suppressor on each high-speed lane, leveraging symmetric clamping behavior. Use Value: Sub-1 mm² footprint allows placement within 2 mm of image sensor connector, minimizing stub inductance and improving ESD response. |
| Notebook HDMI Ports | Portable GPS RF Front-End |
Use Scenario: Guarding HDMI TMDS channels against hot-plug transients and cable-discharge events. IC Role / Device Role: Line-to-ground TVS on each of three TMDS pairs, operating at 5 V common-mode range. Use Value: 5.5 V VRWM ensures no leakage during idle state; 9.5 V clamping prevents HDMI receiver input damage during 6 A surges. | Use Scenario: Protecting GPS antenna feedline and LNA input from ESD induced by user touch on metal bezels. IC Role / Device Role: Signal-line protector between antenna switch and GPS front-end IC, grounded via shortest path. Use Value: 0.22 pF capacitance avoids detuning of 1.575 GHz GPS bandpass filters; 5 V rating aligns with LNA supply domain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | DO-214AC package (4.5 × 2.7 mm), 600 W peak power, 600 pF capacitance | Not suitable for >100 Mbps data lines due to excessive capacitance and size | Select only for low-speed DC power or GPIO protection where board space and bandwidth are non-critical. |
| TPD2E001DRYR | 2-channel, 0.8 pF per line, 5 V VRWM, DRY (1.6 × 1.6 mm) package | Offers dual-line integration but higher capacitance than AOZ8831DT-05's 0.22 pF | Choose when protecting two adjacent lines with shared ground; prefer AOZ8831DT-05 for single-line, ultra-high-speed optimization. |
Compared with SMAJ5.0A and TPD2E001DRYR, the AOZ8831DT-05 uniquely combines sub-0.35 pF capacitance, 1.0 × 0.6 mm footprint, and ±20 kV ESD rating - making it the only option validated for USB 2.0 and MIPI CSI-2 line protection without signal degradation.
Availability
AOZ8831DT-05 is available at Aetrix Electronics and suitable for portable handheld devices, notebook computers, and digital camera designs requiring stable component supply with guaranteed green compliance and full traceability.
Supply support for AOZ8831DT-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 efficiency-critical applications.
The AOZ8831DT-05 belongs to AOS' ultra-low-capacitance TVS portfolio, engineered specifically for ESD-hardened high-speed data interfaces in space-constrained consumer electronics.
FAQ
What is the maximum clamping voltage of the AOZ8831DT-05 under a 6 A transient?
The AOZ8831DT-05 clamps to a maximum of 15 V at 6 A (8/20 µs pulse), as specified in the Electrical Characteristics table on page 3 of the Rev. 2.0 datasheet. This value ensures compatibility with 5 V interface ICs whose absolute maximum input voltage is typically 6.5–7 V, provided external series impedance limits current into the protected device. The AOZ8831DT-05 achieves this clamping performance while maintaining its ultra-low 0.22 pF capacitance.
Does the AOZ8831DT-05 require orientation during PCB placement?
No - the AOZ8831DT-05 is a bi-directional TVS diode with symmetrical junction characteristics, meaning either terminal (Pin 1 or Pin 2) may connect to the signal line and the other to ground without affecting ESD protection performance. This eliminates polarity marking requirements and simplifies automated assembly. The AOZ8831DT-05's DFN package has no polarity indicator, consistent with its bidirectional design.
Can the AOZ8831DT-05 be used to protect a 3.3 V logic line?
The AOZ8831DT-05 has a 5 V working peak reverse voltage (VRWM), making it unsuitable for direct protection of 3.3 V logic lines - leakage current increases significantly above 3.3 V, risking false triggering or excessive standby power draw. For 3.3 V rails, AOS offers the AOZ8830DT-03 (VRWM = 3.3 V). The AOZ8831DT-05 must only be applied where the nominal line voltage is 5 V or compatible with its 5 V rating.
What is the thermal resistance (θJA) of the AOZ8831DT-05 in standard JEDEC PCB layout?
The AOZ8831DT-05 datasheet does not specify θJA; its thermal performance is characterized by junction temperature limits (–40°C to +125°C) and ambient operating range (–40°C to +85°C). As a low-power TVS diode handling only transient pulses (not continuous dissipation), steady-state thermal resistance is not a design parameter. The AOZ8831DT-05 relies on short-duration energy absorption rather than sustained thermal dissipation, so θJA is not published or required for typical ESD protection use cases.
Is the AOZ8831DT-05 compliant with automotive AEC-Q200 standards?
No - the AOZ8831DT-05 is qualified for commercial temperature range (–40°C to +85°C) and is not AEC-Q200 stress-tested or certified. It is intended for consumer and industrial portable electronics, not automotive applications. For AEC-Q200-qualified alternatives, consider AOS' AOZ8851 series, which shares the same DFN 1.0 × 0.6 package but undergoes extended reliability testing. The AOZ8831DT-05 remains appropriate for notebook, GPS, and camera applications outside automotive environments.
AOZ8831DT-05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 2-XDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 15A
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.22pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-DFN (1x0.6)
AOZ8831DT-05 FAQ
1.How can I place an order for AOZ8831DT-05 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8831DT-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 AOZ8831DT-05 reliable?
The price and inventory of AOZ8831DT-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8831DT-05 is usually 5 days.
3.What payment methods are accepted for AOZ8831DT-05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8831DT-05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8831DT-05?
AOZ8831DT-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8831DT-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 AOZ8831DT-05?
For technical support, including AOZ8831DT-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8831DT-05 requirements.
6.How does Aetrix verify that AOZ8831DT-05 is sourced from the original manufacturer or authorized distributors?
All AOZ8831DT-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 AOZ8831DT-05 meets industry standards.
7.What is the process for return or replacement of AOZ8831DT-05?
All AOZ8831DT-05 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8831DT-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 AOZ8831DT-05 part is unused and in its original packaging.
Return procedure for AOZ8831DT-05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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