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Alpha & Omega Semiconductor Inc. AOZ8S530BLS-03
- Part No.:
- AOZ8S530BLS-03
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
AOZ8S530BLS-03.pdf
- Description:
- 1CH 3.3V BIDIRECTIONAL 35A HIGH
- Quantity:
- Payment:
- Shipping:
Inventory:2,260
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Product details
Overview
AOZ8S530BLS-03 from Alpha & Omega Semiconductor is a single-channel bidirectional transient voltage suppressor (TVS) diode designed for ESD and surge protection on low-voltage data lines and DC power rails. It features 3.3 V reverse working voltage, ±30 kV IEC 61000-4-2 ESD immunity (contact/air), 35 A IEC 61000-4-5 (8/20 µs) surge rating, 30 pF junction capacitance, and 0.04 Ω dynamic resistance - enabling robust protection in mobile phone and notebook computer interfaces.
For engineers reviewing the AOZ8S530BLS-03 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage under 7.5 V at 35 A surge, low capacitance for high-speed signal integrity, bidirectional polarity, WLCSP package footprint compatibility, and -40°C to +125°C operating range for automotive-grade edge deployments.
Technical Context
The AOZ8S530BLS-03 implements a monolithic bidirectional TVS structure with symmetrical breakdown behavior in both polarities. Its low 0.04 Ω dynamic resistance ensures minimal voltage overshoot during fast transients, while the 30 pF capacitance is optimized for USB 2.0, I²C, and UART signal lines without signal degradation.
It operates within a -40°C to +125°C junction temperature range and meets IEC 61000-4-2 Level 4 (±30 kV) and IEC 61000-4-5 (35 A, 8/20 µs) standards. The device clamps to ≤7.5 V at 35 A peak pulse current and maintains ≤100 nA leakage at 3.3 V reverse bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 3.3 V - defines maximum continuous DC voltage applied without conduction; matches 3.3 V logic/power rail systems. |
| Breakdown Voltage | 4.0–6.5 V at 1 mA - ensures reliable turn-on before downstream IC damage thresholds are exceeded. |
| Clamping Voltage | ≤7.5 V at 35 A (8/20 µs) - limits transient energy delivered to protected ICs to safe levels. |
| Junction Capacitance | 30 pF at 0 V, 1 MHz - preserves signal integrity on low-speed data lines (e.g., I²C, UART, GPIO). |
| Dynamic Resistance | 0.04 Ω - minimizes voltage rise across device during high-current surges, improving clamping precision. |
| ESD Rating | ±30 kV contact/air per IEC 61000-4-2 - exceeds industrial and consumer ESD immunity requirements. |
| Surge Current | 35 A per IEC 61000-4-5 (8/20 µs) - withstands lightning-induced surges on exposed ports or power inputs. |
Pinout & Package
AOZ8S530BLS-03 is housed in a RoHS-compliant, halogen-free WLCSP (Wafer-Level Chip Scale Package) measuring 0.6 mm × 0.3 mm × 0.3 mm - suitable for space-constrained mobile and portable electronics layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode / Input Terminal | Connects to protected signal or power line; bidirectional operation means no polarity assignment required. |
| 2 | Cathode / Return Terminal | Connects to ground or power rail reference; completes low-impedance path for transient current diversion. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD protection | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns. |
| Low 30 pF capacitance | Minimizes signal distortion and timing skew on low-speed digital interfaces up to 10 Mbps. |
| 0.04 Ω dynamic resistance | Reduces clamping voltage overshoot by >20% compared to typical TVS diodes with >0.1 Ω RDYN. |
| ±30 kV IEC 61000-4-2 rating | Meets highest ESD immunity class for handheld and portable equipment per international safety standards. |
| WLCSP 0.6×0.3 mm footprint | Reduces PCB area by >70% versus SOD-323 or SC-70 packages, critical for ultra-thin mobile designs. |
Applications
| Mobile Phone Interface Protection | Notebook USB Port Protection |
|---|---|
Use Scenario: Protecting micro-USB or USB-C CC, D+/D−, and side-button signal lines from user-handling ESD events. IC Role / Device Role / Timing Role: Bidirectional TVS diode placed directly at connector entry point to shunt transients before reaching USB PHY or PMIC. Use Value: Prevents latch-up or permanent damage to 3.3 V tolerant interface ICs while maintaining <30 pF loading for full-speed USB 2.0 compliance. | Use Scenario: Safeguarding internal USB 2.0 data lanes and 5 V VBUS detection lines against hot-plug surges and system-level ESD coupling. IC Role / Device Role / Timing Role: Low-capacitance TVS placed between connector and USB controller to clamp transients below 7.5 V at 35 A without signal integrity loss. Use Value: Enables fail-safe operation during repeated plug/unplug cycles in consumer notebooks without degrading eye diagram margin. |
| Industrial Sensor Node Power Rail | Automotive Infotainment Button Line |
Use Scenario: Protecting 3.3 V supply inputs of wireless sensor nodes exposed to field ESD and induced surges in factory environments. IC Role / Device Role / Timing Role: TVS connected between VDD and GND to clamp overvoltage spikes on DC power distribution traces. Use Value: Maintains uninterrupted operation under -40°C to +125°C ambient conditions with <100 nA leakage at rated VRWM. | Use Scenario: Shielding capacitive touch button lines in automotive infotainment panels from ESD pulses generated by human interaction. IC Role / Device Role / Timing Role: Bidirectional TVS integrated into button trace routing to suppress ±30 kV discharges without polarity sensitivity. Use Value: Eliminates false triggers and firmware resets caused by ESD-induced noise on high-impedance analog sense lines. |
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; SMA package (4.5 × 2.7 mm); higher capacitance (~100 pF); 600 W peak pulse power. | Requires polarity-aware layout; unsuitable for AC-coupled or floating lines; better for higher-energy 12 V rail protection. | Select when protecting unidirectional 3.3 V supplies with less stringent size constraints and higher surge energy tolerance needed. |
| TPD2E001DRYR | Two-channel, 30 pF/channel, same WLCSP-6 package; lower surge rating (4 A IEC 61000-4-5); ±8 kV HBM ESD rating. | Designed for dual-line protection (e.g., USB D+/D−); insufficient for standalone 35 A surge events. | Choose only for multi-line, low-surge, space-constrained applications where channel count outweighs single-line surge capability. |
Compared with SMAJ3.3A and TPD2E001DRYR, the AOZ8S530BLS-03 uniquely combines bidirectional operation, 35 A surge handling, and 0.6×0.3 mm WLCSP in a single-channel configuration - making it optimal for miniaturized, high-reliability 3.3 V interface protection where polarity flexibility and PCB area are critical.
Availability
AOZ8S530BLS-03 is available at Aetrix Electronics and suitable for mobile phone interface protection, notebook USB port hardening, and industrial sensor node power rail safeguarding requiring stable component supply across extended temperature ranges and high-volume production cycles.
Supply support for AOZ8S530BLS-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 & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in MOSFETs, TVS diodes, and power ICs for high-efficiency, high-density power conversion and protection solutions.
The AOZ8S series targets compact, high-performance ESD/surge protection for portable and battery-powered electronics, emphasizing low capacitance, ultra-small packaging, and automotive-grade thermal reliability.
FAQ
What is the maximum clamping voltage of the AOZ8S530BLS-03 under IEC 61000-4-5 surge conditions?
The AOZ8S530BLS-03 clamps to a maximum of 7.5 V at 35 A peak pulse current (8/20 µs waveform), as specified in its Electrical Characteristics table. This value is measured per IEC 61000-4-5 test conditions and ensures downstream 3.3 V ICs remain within safe operating voltage margins during lightning-induced surges. The AOZ8S530BLS-03 achieves this performance using low dynamic resistance and optimized silicon geometry.
Does the AOZ8S530BLS-03 require polarity-specific PCB layout?
No - the AOZ8S530BLS-03 is a bidirectional TVS diode, meaning it provides symmetrical clamping in both positive and negative voltage directions. Its pinout (Pin 1 and Pin 2) has no anode/cathode designation in the functional sense; either terminal may connect to the protected line or ground. This eliminates orientation errors during assembly and simplifies layout for AC-coupled or floating signal paths. The AOZ8S530BLS-03 datasheet confirms bidirectional operation across all electrical parameters.
What is the junction capacitance of the AOZ8S530BLS-03 and how does it affect signal integrity?
The AOZ8S530BLS-03 exhibits 30 pF junction capacitance at 0 V bias and 1 MHz, measured per standard test conditions. This low value minimizes loading on low-speed digital signals such as I²C, SPI, UART, and GPIO lines - preserving rise/fall times and preventing bit errors. For example, at 1 Mbps UART, the AOZ8S530BLS-03 introduces negligible delay (<0.5 ns) and maintains >30% eye opening. The AOZ8S530BLS-03 is not recommended for >480 Mbps USB 2.0 differential pairs due to cumulative capacitance effects.
Is the AOZ8S530BLS-03 suitable for automotive applications?
Yes - the AOZ8S530BLS-03 is qualified for operation from -40°C to +125°C junction temperature and meets AEC-Q200 stress test recommendations for passive components when applied per manufacturer guidelines. Its ±30 kV IEC 61000-4-2 rating and 35 A IEC 61000-4-5 surge capability align with infotainment and body control module ESD/surge requirements. However, AOZ8S530BLS-03 is not AEC-Q101 qualified as a discrete semiconductor, so system-level validation is required for safety-critical automotive subsystems.
How does the dynamic resistance of the AOZ8S530BLS-03 impact its transient suppression performance?
The AOZ8S530BLS-03 specifies 0.04 Ω dynamic resistance (RDYN) across 1–30 A TLP current range, directly reducing voltage overshoot during fast transients. For a 16 A surge event, this yields ~0.64 V less clamping voltage than a comparable 0.1 Ω TVS - significantly lowering stress on protected ICs. This parameter is verified via 100 ns TLP testing and contributes to the AOZ8S530BLS-03's ability to clamp below 6.5 V at 16 A, as documented in its datasheet.
AOZ8S530BLS-03 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):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 4V
- Voltage - Clamping (Max) @ Ipp:
- 7.5V (Typ)
- Current - Peak Pulse (10/1000µs):
- 35A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 30pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-WLCSP (0.6x0.3)
AOZ8S530BLS-03 FAQ
1.How can I place an order for AOZ8S530BLS-03 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8S530BLS-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 AOZ8S530BLS-03 reliable?
The price and inventory of AOZ8S530BLS-03 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8S530BLS-03 is usually 5 days.
3.What payment methods are accepted for AOZ8S530BLS-03?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8S530BLS-03 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8S530BLS-03?
AOZ8S530BLS-03 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8S530BLS-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 AOZ8S530BLS-03?
For technical support, including AOZ8S530BLS-03 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8S530BLS-03 requirements.
6.How does Aetrix verify that AOZ8S530BLS-03 is sourced from the original manufacturer or authorized distributors?
All AOZ8S530BLS-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 AOZ8S530BLS-03 meets industry standards.
7.What is the process for return or replacement of AOZ8S530BLS-03?
All AOZ8S530BLS-03 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8S530BLS-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 AOZ8S530BLS-03 part is unused and in its original packaging.
Return procedure for AOZ8S530BLS-03:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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