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Alpha & Omega Semiconductor Inc. AOZ8671BDT-03
- Part No.:
- AOZ8671BDT-03
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
AOZ8671BDT-03.pdf
- Description:
- 1 CHANNEL (1PF) BIDIRECTIONAL TV
- Quantity:
- Payment:
- Shipping:
Inventory:9,221
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Product details
Overview
AOZ8671BDT-03 from Alpha and Omega Semiconductor is a single-channel bidirectional TVS diode in a 0201 DFN package, rated for ±30 kV IEC 61000-4-2 ESD protection, 1 pF junction capacitance, 3.3 V reverse working voltage, and 7 A peak pulse current-designed to protect high-speed data lines in space-constrained portable electronics.
For engineers reviewing the AOZ8671BDT-03 datasheet, pinout, applications, or equivalent options, key selection criteria include low-clamping-voltage transient suppression (6.5 V at 7 A), ultra-small footprint (0.6 mm × 0.3 mm), bidirectional polarity, RoHS/Green compliance, and operation across –40°C to +125°C ambient.
Technical Context
The AOZ8671BDT-03 implements a silicon avalanche diode structure optimized for fast response to ESD transients (sub-nanosecond TLP rise time) and low dynamic resistance (0.3 Ω). Its bidirectional configuration enables symmetric clamping on differential or single-ended I/O lines without polarity constraints.
It operates with a 3.3 V reverse working voltage and clamps to ≤6.5 V under 7 A IEC 61000-4-5 lightning surge (8/20 μs), while maintaining only 1 pF capacitance at 0 V bias-critical for preserving signal integrity on USB 2.0, HDMI, and MIPI interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (IEC 61000-4-2) | ±30 kV air & contact discharge-meets Level 4+ immunity without external shielding |
| Clamping Voltage (IPP = 7 A) | 6.5 V max-limits voltage overshoot below IC absolute maximum ratings during surge events |
| Junction Capacitance | 1.0–1.2 pF at 1 MHz-enables use on >480 Mbps USB 2.0 and 1.5 Gbps MIPI D-PHY lines |
| Reverse Working Voltage (VRWM) | 3.3 V-matches standard I/O rail voltage, preventing leakage or false triggering |
| Peak Pulse Power (8/20 μs) | 45 W-sustains 7 A lightning surges per IEC 61000-4-5 without degradation |
| Operating Temperature Range | –40°C to +125°C-supports automotive infotainment and industrial handheld deployments |
Pinout & Package
AOZ8671BDT-03 uses a 2-terminal DFN 0.6 mm × 0.3 mm package (DFN 0.6x0.3A_2L, EP2) with exposed paddle for thermal dissipation. No internal die bonding or substrate routing-both terminals are symmetrical and interchangeable due to bidirectional design.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Interchangeable I/O terminal-no polarity assignment; connects to protected line |
| Terminal 2 | Anode/Cathode (bidirectional) | Interchangeable I/O terminal-connects to ground or reference plane |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD protection | Enables single-device protection of AC-coupled or differential signals (e.g., USB D+/D–) without polarity concerns |
| 1 pF junction capacitance | Minimizes signal distortion and insertion loss on high-speed serial links up to 1.5 Gbps |
| 6.5 V clamping at 7 A | Keeps downstream ICs (e.g., USB PHY, touchscreen controller) within safe operating voltage margins during lightning transients |
| 0201 footprint (0.6 × 0.3 mm) | Reduces PCB area by >50% vs. 0402 TVS devices-critical for slim mobile phone bezels and foldable displays |
Applications
| USB 2.0 Interface Protection | HDMI/MIPI D-PHY Line Protection |
|---|---|
Use Scenario: Protecting D+ and D– lines in smartphone USB OTG circuits from ESD events during cable insertion/removal. IC Role / Device Role / Timing Role: Bidirectional TVS diode placed directly at connector, clamping transients before reaching USB transceiver. Use Value: Prevents latch-up or permanent damage to USB PHY ICs while maintaining <1 pF loading for full-speed (480 Mbps) signal fidelity. | Use Scenario: Shielding MIPI D-PHY clock and data lanes in tablet display modules from handling ESD. IC Role / Device Role / Timing Role: Low-capacitance TVS placed adjacent to display driver IC pins to suppress ±30 kV contact discharges. Use Value: Ensures no bit errors or frame drops during ESD exposure, verified per IEC 61000-4-2 Level 4 testing. |
| Smartphone Antenna Switch I/O | Wearable Touchscreen Controller Lines |
Use Scenario: Guarding RF antenna switch control lines (e.g., enable/disable pins) against ESD-induced logic upset. IC Role / Device Role / Timing Role: Transient suppressor on low-voltage CMOS control inputs to GaAs or SOI antenna switches. Use Value: Eliminates field returns caused by ESD-induced reset or mode corruption, with zero impact on 3.3 V logic timing margins. | Use Scenario: Protecting I²C SDA/SCL lines between MCU and capacitive touch controller in fitness bands. IC Role / Device Role / Timing Role: Bidirectional clamp on 3.3 V I²C bus, placed near touch IC to minimize stub length. Use Value: Maintains I²C communication integrity under repeated ±30 kV ESD stress, validated per Human Body Model (±30 kV). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ3.3A | Unidirectional, DO-214AC package (4.5 × 3.3 mm), 12.3 V clamping at 10 A, 350 pF capacitance | Requires polarity-aware layout; unsuitable for differential or AC-coupled lines; too large for mobile PCBs | Select only for cost-sensitive industrial boards where size and speed are secondary |
| TPD2E007DRYR | 2-channel unidirectional array, 0.65 mm × 0.65 mm DFN, 1.5 pF per channel, 9.5 V clamping at 4 A | Higher capacitance and clamping voltage; not pin-compatible; requires separate ground path per channel | Consider when protecting dual I/Os simultaneously but accept higher voltage overshoot and reduced bandwidth |
Compared with SMAJ3.3A and TPD2E007DRYR, the AOZ8671BDT-03 uniquely delivers bidirectional protection, 1 pF capacitance, and 0201 size-making it the only option for miniaturized, high-speed, polarity-agnostic ESD hardening in consumer portables.
Availability
AOZ8671BDT-03 is available at Aetrix Electronics and suitable for mobile phones, notebook computers, and portable medical monitors requiring stable component supply with guaranteed long-term lifecycle support.
Supply support for AOZ8671BDT-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 AOZ8671BDT-03 belongs to AOS's ultra-low-capacitance TVS portfolio, engineered specifically for ESD protection of high-speed digital interfaces in space-constrained consumer electronics.
FAQ
What is the clamping voltage of AOZ8671BDT-03 at 7 A surge current?
The AOZ8671BDT-03 clamps to a maximum of 6.5 V under 7 A IEC 61000-4-5 (8/20 μs) surge conditions. This value is measured at the device terminals and ensures downstream 3.3 V ICs remain within safe operating limits. The AOZ8671BDT-03 achieves this via low dynamic resistance (0.3 Ω) and optimized silicon junction design.
Is AOZ8671BDT-03 suitable for USB 2.0 data line protection?
Yes, AOZ8671BDT-03 is explicitly qualified for USB 2.0 protection due to its 1 pF junction capacitance and bidirectional architecture. It preserves signal integrity up to 480 Mbps without measurable eye diagram degradation. The AOZ8671BDT-03 is placed directly at the USB connector with minimal trace length to maximize ESD suppression efficacy.
Does AOZ8671BDT-03 require orientation-specific placement on PCB?
No, AOZ8671BDT-03 is a fully bidirectional TVS diode with symmetrical terminals-neither pin is designated anode or cathode. It can be placed in either orientation on the PCB. This simplifies layout and eliminates polarity-related assembly errors. The AOZ8671BDT-03 functions identically regardless of mounting direction.
What is the maximum operating temperature range for AOZ8671BDT-03?
The AOZ8671BDT-03 is rated for continuous operation from –40°C to +125°C ambient temperature. This range covers extended industrial and automotive cabin environments. Thermal performance is enhanced by the exposed paddle in its DFN 0.6x0.3A_2L package, which improves heat transfer to the PCB ground plane.
How does AOZ8671BDT-03 meet IEC 61000-4-2 Level 4 ESD requirements?
The AOZ8671BDT-03 exceeds IEC 61000-4-2 Level 4 with ±30 kV air and contact discharge ratings-double the ±15 kV/±8 kV minimum. It achieves this via robust silicon junction design and low-leakage characteristics (<50 nA at 3.3 V). The AOZ8671BDT-03 maintains specification compliance across its full temperature range without derating.
AOZ8671BDT-03 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 0201 (0603 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 6.5V (Typ)
- Current - Peak Pulse (10/1000µs):
- 7A (8/20µs)
- Power - Peak Pulse:
- 45W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 1pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 0201
AOZ8671BDT-03 FAQ
1.How can I place an order for AOZ8671BDT-03 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8671BDT-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 AOZ8671BDT-03 reliable?
The price and inventory of AOZ8671BDT-03 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8671BDT-03 is usually 5 days.
3.What payment methods are accepted for AOZ8671BDT-03?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8671BDT-03 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8671BDT-03?
AOZ8671BDT-03 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8671BDT-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 AOZ8671BDT-03?
For technical support, including AOZ8671BDT-03 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8671BDT-03 requirements.
6.How does Aetrix verify that AOZ8671BDT-03 is sourced from the original manufacturer or authorized distributors?
All AOZ8671BDT-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 AOZ8671BDT-03 meets industry standards.
7.What is the process for return or replacement of AOZ8671BDT-03?
All AOZ8671BDT-03 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8671BDT-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 AOZ8671BDT-03 part is unused and in its original packaging.
Return procedure for AOZ8671BDT-03:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8671BDT-03 Tags
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