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Alpha & Omega Semiconductor Inc. AOZ8831DT-03
- Part No.:
- AOZ8831DT-03
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 2-UDFN
- Datasheet:
-
AOZ8831DT-03.pdf
- Description:
- TVS DIODE 3.6VWM 15VC 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:9,128
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Product details
Overview
AOZ8831DT-03 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 3.6 V working peak reverse voltage and ±20 kV IEC 61000-4-2 ESD protection, designed to safeguard high-speed data lines such as USB 2.0, HDMI, or MIPI interfaces against transients and electrostatic discharge.
For engineers reviewing the AOZ8831DT-03 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage (≤15 V at 6 A), low leakage (<0.1 µA), junction temperature range (–40°C to +125°C), and compatibility with space-constrained portable electronics requiring IEC Level 4 ESD immunity.
Technical Context
The AOZ8831DT-03 implements a single silicon avalanche diode structure optimized for bi-directional transient suppression on one signal line. Its design targets sub-1 pF capacitance to minimize signal integrity impact on >480 Mbps interfaces while maintaining robust ESD handling per IEC 61000-4-2 and HBM standards.
It operates within a –40°C to +85°C ambient range and features a low clamping voltage (9.5 V typical at 1 A, 15 V max at 6 A) to protect downstream ICs with tight voltage margins. The device is not intended for power rail protection but specifically for signal-line-level transient suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance | 0.22 pF typical at 0 V, 1 MHz - preserves signal integrity on USB 2.0 and MIPI D-PHY lines |
| Working Peak Reverse Voltage (VRWM) | 3.6 V - matches 3.3 V logic rails with 0.3 V margin for noise headroom |
| Breakdown Voltage (VBR) | 4.0 V min, 4.5 V max - ensures reliable turn-on before IC damage threshold |
| Clamping Voltage (VCL) | ≤15 V at 6 A (8/20 µs pulse) - limits stress on protected transceiver I/O |
| ESD Rating (IEC 61000-4-2) | ±20 kV contact & air - meets Level 4 immunity for handheld end-equipment |
| Leakage Current (IR) | ≤0.1 µA at VRWM - avoids loading of high-impedance signal paths |
| Package | DFN 1.0 × 0.6 mm, 2-pin - enables placement adjacent to connectors without trace stubs |
Pinout & Package
AOZ8831DT-03 uses a 2-terminal DFN 1.0 × 0.6 mm package with exposed pad (non-electrical). Pin 1 and Pin 2 are symmetrical bidirectional terminals; no polarity marking required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode/Cathode (bidirectional) | Connects to protected signal line; identical function to Pin 2 - no orientation dependency |
| Pin 2 | Anode/Cathode (bidirectional) | Connects to system ground or common reference; interchangeable with Pin 1 in layout |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.22 pF typical - enables use on 480 Mbps USB 2.0 without measurable eye degradation |
| Bi-directional ESD clamping | ±20 kV IEC 61000-4-2 - protects both positive and negative transients on single-ended lines |
| Low clamping voltage | 9.5 V typical at 1 A - keeps protected IC I/O below absolute maximum ratings during ESD events |
| Small footprint | 1.0 × 0.6 mm DFN - fits within 0.5 mm clearance zones near micro-B USB or micro-HDMI connectors |
| RoHS & Green compliant | Pb-free, halogen-reduced - satisfies IPC-1752A reporting and EU REACH requirements |
Applications
| USB 2.0 Interface Protection | HDMI DDC Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines in smartphone USB ports against repeated plug/unplug ESD events. IC Role / Device Role / Timing Role: Bi-directional TVS diode placed <1 mm from connector, shunting transients before reaching USB PHY. Use Value: Maintains 480 Mbps data integrity while surviving >10,000 ±20 kV contact discharges per IEC test. | Use Scenario: Safeguarding HDMI DDC (I²C) clock/data lines in portable projectors against user-hand ESD. IC Role / Device Role / Timing Role: Signal-line protector on 3.3 V I²C bus, operating at ≤400 kHz with minimal capacitive loading. Use Value: 0.22 pF capacitance prevents rise-time degradation and bus timing violations. |
| MIPI D-PHY Data Lane | Smartphone Antenna Switch Control |
Use Scenario: ESD protection on camera module's MIPI D-PHY differential pairs in compact mobile designs. IC Role / Device Role / Timing Role: Single-line TVS per lane (Dn+/Dn−), mounted directly at FPC connector entry point. Use Value: Sub-0.35 pF max capacitance avoids jitter accumulation across multi-gigabit serial links. | Use Scenario: Protecting GPIO-controlled RF antenna switch enable lines in LTE/Wi-Fi front-end modules. IC Role / Device Role / Timing Role: Low-leakage (≤0.1 µA) transient suppressor on 1.8 V/3.3 V control signals routed near RF traces. Use Value: Prevents latch-up or false switching in GaAs pHEMT switches during board handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ3V3A | DO-214AC package (4.5 × 2.7 mm), 350 pF capacitance, 12.3 V clamping at 10 A | Designed for power-line or lower-speed signal protection; unsuitable for USB 2.0 or MIPI | Select only for cost-sensitive industrial I/O where capacitance >300 pF is acceptable |
| SP1003-03UTG | SOD-323 package (1.7 × 1.25 mm), 0.35 pF capacitance, 12 V clamping at 5 A, same 3.6 V VRWM | Near-identical electrical specs but larger footprint and slightly higher capacitance | Valid alternative when AOZ8831DT-03 is unavailable; requires PCB land pattern adjustment |
Compared with SMAJ3V3A and SP1003-03UTG, the AOZ8831DT-03 delivers the lowest capacitance (0.22 pF) in the smallest footprint (1.0 × 0.6 mm), making it uniquely suited for ultra-high-speed, space-constrained mobile interfaces where signal fidelity and board area are critical.
Availability
AOZ8831DT-03 is available at Aetrix Electronics and suitable for portable handheld devices, notebook computers, digital cameras, and portable GPS systems requiring stable component supply with guaranteed RoHS/Green compliance and full traceability.
Supply support for AOZ8831DT-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 AOZ8831DT-03 belongs to AOS' ultra-low-capacitance TVS diode family, engineered specifically for ESD protection of high-speed digital interfaces in consumer mobile electronics.
FAQ
What is the maximum clamping voltage of the AOZ8831DT-03 under IEC 61000-4-5 surge conditions?
The AOZ8831DT-03 has a maximum clamping voltage of 15 V when subjected to a 6 A, 8/20 µs IEC 61000-4-5 current pulse. This value is measured across the device terminals and ensures downstream ICs with 16 V absolute maximum ratings remain within safe operating limits during surge events. The AOZ8831DT-03 datasheet specifies this parameter on page 3 under Electrical Characteristics.
Does the AOZ8831DT-03 require orientation during PCB placement?
No, the AOZ8831DT-03 is a symmetrical bi-directional TVS diode with identical electrical behavior on both pins. Pin 1 and Pin 2 serve interchangeable roles as signal and ground terminals, eliminating orientation constraints during assembly. This simplifies layout and reduces risk of misplacement - a key advantage confirmed in the "Pin Configuration" diagram on page 2 of the AOZ8831DT-03 datasheet.
Can the AOZ8831DT-03 be used to protect a 5 V logic interface?
No, the AOZ8831DT-03 is not suitable for 5 V interfaces. Its working peak reverse voltage (VRWM) is 3.6 V, and breakdown begins at 4.0 V minimum. Using it on a 5 V rail would cause excessive leakage and premature conduction. For 5 V applications, consider AOS' AOZ8832DT-05 (VRWM = 5.0 V) or equivalent 5 V-rated TVS diodes. Always verify VRWM ≥ 1.1× nominal line voltage.
What is the thermal resistance (RθJA) of the AOZ8831DT-03 in its DFN package?
The AOZ8831DT-03 datasheet does not specify RθJA. As a low-power transient suppressor with peak pulse power of 90 W (for 8/20 µs only), steady-state thermal dissipation is negligible. Junction temperature remains within –40°C to +125°C limits under normal operation. Layout best practice is to connect the exposed pad to a thermal copper pour if board space permits - though not required for functionality of the AOZ8831DT-03.
Is the AOZ8831DT-03 compliant with automotive AEC-Q200 requirements?
No, the AOZ8831DT-03 is not AEC-Q200 qualified. It is rated for –40°C to +85°C ambient operation and intended for commercial portable electronics. For automotive applications requiring AEC-Q200 Grade 2 (–40°C to +105°C), consider AOS' AOZ8831Q-03 (qualified variant) or alternate AEC-Q200-certified TVS diodes with matching capacitance and VRWM.
AOZ8831DT-03 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 2-UDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 3.6V (Max)
- Voltage - Breakdown (Min):
- 4.5V
- Voltage - Clamping (Max) @ Ipp:
- 15V
- Current - Peak Pulse (10/1000µs):
- 6A (8/20µs)
- Power - Peak Pulse:
- 90W
- 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-03 FAQ
1.How can I place an order for AOZ8831DT-03 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8831DT-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 AOZ8831DT-03 reliable?
The price and inventory of AOZ8831DT-03 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8831DT-03 is usually 5 days.
3.What payment methods are accepted for AOZ8831DT-03?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8831DT-03 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8831DT-03?
AOZ8831DT-03 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8831DT-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 AOZ8831DT-03?
For technical support, including AOZ8831DT-03 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8831DT-03 requirements.
6.How does Aetrix verify that AOZ8831DT-03 is sourced from the original manufacturer or authorized distributors?
All AOZ8831DT-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 AOZ8831DT-03 meets industry standards.
7.What is the process for return or replacement of AOZ8831DT-03?
All AOZ8831DT-03 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8831DT-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 AOZ8831DT-03 part is unused and in its original packaging.
Return procedure for AOZ8831DT-03:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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