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Alpha & Omega Semiconductor Inc. AOZ8S205BL2-05
- Part No.:
- AOZ8S205BL2-05
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
AOZ8S205BL2-05.pdf
- Description:
- LINEAR IC
- Quantity:
- Payment:
- Shipping:
Inventory:3,993
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Product details
Overview
AOZ8S205BL2-05 from Alpha and Omega Semiconductor is a dual-channel bidirectional TVS diode designed for ESD and transient protection of high-speed differential data lines including USB4, Thunderbolt 4, and PCIe. It features 0.075 pF typical junction capacitance, ±9 kV IEC 61000-4-2 contact/air ESD rating, 3.3 V/5 V operating voltage, 5.5 V clamping voltage at 3 A surge, and WLCSP0.63x0.33A-3 package.
For engineers reviewing the AOZ8S205BL2-05 datasheet, pinout, applications, or equivalent options, key selection criteria include ultra-low capacitance for signal integrity, bidirectional clamping for full-duplex interfaces, RoHS-compliant WLCSP footprint, and validated performance up to 20 Gbps (Thunderbolt 3.0 eye diagram).
Technical Context
The AOZ8S205BL2-05 implements a symmetric bidirectional TVS structure across two independent channels, each with identical electrical characteristics. Its low dynamic resistance (0.9 Ω) and fast TLP response enable effective clamping during 100 ns transients and 8/20 µs lightning surges.
Designed specifically for high-speed serial interfaces, it maintains signal fidelity via sub-0.1 pF capacitance at 0 V bias and minimal voltage-dependent capacitance variation (0.075–0.095 pF). The device operates over –40°C to +125°C and supports 3.3 V and 5 V systems without external biasing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance (CJ) | 0.075 pF typical at 0 V, 1 MHz - preserves signal integrity on 10–20 Gbps links |
| ESD Rating (IEC 61000-4-2) | ±9 kV contact & air discharge - meets industrial and consumer ESD immunity requirements |
| Clamping Voltage (VCL) | 5.5 V at 3 A (8/20 µs) - limits transient overvoltage below IC damage thresholds |
| Reverse Working Voltage (VRWM) | 3.3 V or 5 V - matches common high-speed interface supply rails |
| Peak Pulse Current (IPP) | 3 A (8/20 µs) - withstands lightning-induced surges per IEC 61000-4-5 |
| Dynamic Resistance (RDNY) | 0.9 Ω (1–13 A TLP) - ensures rapid voltage stabilization during fast transients |
| Operating Temp Range | –40°C to +125°C ambient - supports automotive cabin and industrial edge deployments |
Pinout & Package
AOZ8S205BL2-05 uses the WLCSP0.63x0.33A-3 package: ultra-compact wafer-level chip-scale package measuring 0.63 mm × 0.33 mm with 3 solder bumps. Pin configuration is defined per datasheet Page 2: Pin 1 = I/O1, Pin 2 = GND, Pin 3 = I/O2 - supporting dual-channel bidirectional protection with shared ground reference.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (I/O1) | Channel 1 input/output terminal | Bidirectionally protects first high-speed differential pair (e.g., TX+/TX−) |
| Pin 2 (GND) | Common ground reference | Low-inductance return path essential for ESD current dissipation and signal reference stability |
| Pin 3 (I/O2) | Channel 2 input/output terminal | Bidirectionally protects second differential pair (e.g., RX+/RX− or D+/D−) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 0.075 pF enables use on 20 Gbps Thunderbolt 3.0 links without eye diagram degradation |
| Bidirectional clamping | Symmetric VBR (6–9 V) and VCL ensure protection for AC-coupled, full-duplex signals |
| Shared ground architecture | Single GND pin minimizes PCB real estate while maintaining channel isolation >30 dB @ 10 GHz |
| High surge robustness | 3 A (8/20 µs) and 40 A (EFT 5/50 ns) ratings support harsh electromagnetic environments |
| Automotive-grade temperature range | –40°C to +125°C operation validated for infotainment and ADAS interface protection |
Applications
| USB4 / Thunderbolt 4 Interface Protection | PCI Express Gen 4/5 Lane Protection |
|---|---|
Use Scenario: Protecting differential pairs in Type-C connectors handling 40 Gbps aggregate bandwidth. IC Role / Device Role / Timing Role: Bidirectional TVS diode placed adjacent to connector to shunt ESD before reaching SerDes PHY. Use Value: 0.075 pF capacitance prevents jitter increase and maintains compliance with USB4 electrical specs. | Use Scenario: Safeguarding PCIe 4.0/5.0 x16 slots in servers and workstations against board-level ESD events. IC Role / Device Role / Timing Role: Dual-channel clamp on transmit/receive lanes with shared ground to reduce layout complexity. Use Value: 5.5 V clamping at 3 A ensures downstream switch/controller remains within absolute maximum ratings. |
| Mobile Phone High-Speed MIPI D-PHY Protection | Notebook DisplayPort / eDP Interface Protection |
Use Scenario: ESD hardening of camera sensor interfaces (MIPI D-PHY v2.5) in slim smartphone form factors. IC Role / Device Role / Timing Role: Channel-isolated TVS on clock and data lanes with minimal trace length impact. Use Value: WLCSP0.63x0.33A-3 footprint fits within 0.3 mm routing pitch constraints of modern flex PCBs. | Use Scenario: Transient suppression on eDP 1.4a (8.1 Gbps) links between GPU and display panel in ultrabooks. IC Role / Device Role / Timing Role: Low-capacitance clamp on main link lanes to preserve eye opening and reduce bit error rate. Use Value: ±9 kV IEC 61000-4-2 rating covers factory handling and end-user electrostatic discharge events. |
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 | Unidirectional, 30 pF capacitance, DO-214AC package (3.5 mm × 1.6 mm) | Not suitable for >1 Gbps data lines due to capacitance and size; intended for power rail protection | Select only for low-speed, non-differential, or DC-biased applications where space and bandwidth are not constraints |
| TPD4E05U06DQAR | Quad-channel, 0.5 pF typical capacitance, 6-pin X2SON package, ±12 kV ESD rating | Higher capacitance limits use to ≤5 Gbps (USB 3.2 Gen 1); larger footprint than AOZ8S205BL2-05 | Prefer when needing four protected lines in one package and higher ESD margin outweighs bandwidth penalty |
Compared with SMAJ3.3A and TPD4E05U06DQAR, the AOZ8S205BL2-05 uniquely delivers sub-0.1 pF capacitance in a 0.63 mm × 0.33 mm WLCSP, enabling direct integration into next-generation 20 Gbps serial interfaces without signal integrity compromise.
Availability
AOZ8S205BL2-05 is available at Aetrix Electronics and suitable for USB4, Thunderbolt 4, and PCIe Gen 5 interface designs requiring stable component supply, high-volume manufacturability, and long-term lifecycle assurance.
Supply support for AOZ8S205BL2-05 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 AOZ8S205BL2-05 belongs to AOS's ultra-low-capacitance TVS portfolio, engineered specifically to protect high-speed serial interfaces without degrading signal integrity or consuming excessive PCB area.
FAQ
What is the exact package type and dimensions of the AOZ8S205BL2-05?
The AOZ8S205BL2-05 uses the WLCSP0.63x0.33A-3 package: a wafer-level chip-scale package measuring 0.63 mm × 0.33 mm with three solder bumps. This ultra-compact footprint is explicitly confirmed in the ordering information table on page 2 of the official datasheet and is critical for high-density routing near Type-C connectors and BGA-mounted controllers.
Does the AOZ8S205BL2-05 support both 3.3 V and 5 V systems?
Yes, the AOZ8S205BL2-05 is rated for reverse working voltages of 3.3 V and 5 V, as specified in the Electrical Characteristics table (page 3). Its breakdown voltage (6–9 V) and clamping behavior ensure reliable protection across both common interface supply domains without requiring separate part numbers.
Is the AOZ8S205BL2-05 pin-to-pin compatible with AOZ8S205BL2-03?
Yes - the datasheet states "AOZ8S205BL2-03Any Pin to Pin" and "AOZ8S205BL2-05Any Pin to Pin" in the Absolute Maximum Ratings table (page 2), confirming identical pinout, package, and electrical specifications except for VRWM. Both share the same WLCSP0.63x0.33A-3 footprint and 3-pin configuration (I/O1, GND, I/O2).
What ESD standards does the AOZ8S205BL2-05 meet, and at what test levels?
The AOZ8S205BL2-05 meets IEC 61000-4-2 at ±9 kV contact and ±9 kV air discharge, IEC 61000-4-5 (lightning) at 3 A (8/20 µs), and IEC 61000-4-4 (EFT) at 40 A (5/50 ns). These values are explicitly listed in the General Description and Absolute Maximum Ratings sections of the datasheet.
Can the AOZ8S205BL2-05 be used for HDMI 2.1 or DisplayPort 2.0 interfaces?
Yes - the datasheet includes validated HDMI 2.1 (12 Gbps) and Thunderbolt 3.0 (20 Gbps) eye diagrams (page 5), confirming signal integrity preservation. While DP 2.0 (80 Gbps) exceeds its validated scope, the AOZ8S205BL2-05's 0.075 pF capacitance and low dynamic resistance make it suitable for DP 1.4a (32.4 Gbps) and earlier versions when placed per differential pair.
AOZ8S205BL2-05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 0201 (0603 Metric)
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 5.5V (Typ)
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 16W
- Power Line Protection:
- No
- Applications:
- HDMI, USB
- Capacitance @ Frequency:
- 0.075pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 3-WLCSP (0.63x0.33)
AOZ8S205BL2-05 FAQ
1.How can I place an order for AOZ8S205BL2-05 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8S205BL2-05 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 AOZ8S205BL2-05 reliable?
The price and inventory of AOZ8S205BL2-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8S205BL2-05 is usually 5 days.
3.What payment methods are accepted for AOZ8S205BL2-05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8S205BL2-05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8S205BL2-05?
AOZ8S205BL2-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8S205BL2-05 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 AOZ8S205BL2-05?
For technical support, including AOZ8S205BL2-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8S205BL2-05 requirements.
6.How does Aetrix verify that AOZ8S205BL2-05 is sourced from the original manufacturer or authorized distributors?
All AOZ8S205BL2-05 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 AOZ8S205BL2-05 meets industry standards.
7.What is the process for return or replacement of AOZ8S205BL2-05?
All AOZ8S205BL2-05 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8S205BL2-05, 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 AOZ8S205BL2-05 part is unused and in its original packaging.
Return procedure for AOZ8S205BL2-05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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