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Alpha & Omega Semiconductor Inc. AOZ8S530BLS-05
- Part No.:
- AOZ8S530BLS-05
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 0201 (0603 Metric)
- Datasheet:
-
AOZ8S530BLS-05.pdf
- Description:
- 1CH 5.0V BIDIRECTIONAL 28A HIGH
- Quantity:
- Payment:
- Shipping:
Inventory:6,174
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Product details
Overview
AOZ8S530BLS-05 from Alpha & Omega Semiconductor is a single-channel bidirectional transient voltage suppressor (TVS) diode designed for ESD and surge protection on data lines and DC power rails. It features 5.5 V reverse working voltage, 15 pF junction capacitance, ±30 kV IEC 61000-4-2 contact/air discharge rating, 28 A IEC 61000-4-5 (8/20 µs) surge capability, and low 7.6 V clamping voltage at 28 A, making it suitable for VBUS and low-speed interfaces in mobile phones and notebook computers.
For engineers reviewing the AOZ8S530BLS-05 datasheet, pinout, applications, or equivalent options, key selection considerations include clamping performance under 28 A surge, 15 pF signal-line capacitance, bidirectional polarity, WLCSP 0.6 mm × 0.3 mm footprint, and -40°C to +125°C operating junction temperature.
Technical Context
The AOZ8S530BLS-05 implements a monolithic bidirectional TVS structure with symmetrical breakdown behavior in both polarities. Its low dynamic resistance (0.05 Ω) ensures minimal voltage overshoot during fast transients, while the 5.5 V VRWM enables compatibility with 5 V logic and USB VBUS lines.
It operates within a -40°C to +125°C junction temperature range and uses a WLCSP package with solder bumps directly attached to the silicon die-enabling ultra-low parasitic inductance critical for high-frequency ESD suppression. The device meets IEC 61000-4-2 Level 4 and IEC 61000-4-5 Class 2 requirements without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Working Voltage | 5.5 V - Maximum continuous DC voltage applied without leakage exceeding 100 nA; matches standard 5 V rail and USB VBUS tolerance. |
| Clamping Voltage (28 A) | 7.6 V - Peak voltage across device during 8/20 µs surge; limits downstream IC stress below 8 V threshold. |
| Junction Capacitance | 15 pF - Measured at 0 V, 1 MHz; preserves signal integrity on low-speed data lines (e.g., I²C, UART). |
| ESD Rating (IEC 61000-4-2) | ±30 kV contact/air - Full Level 4 immunity; eliminates need for secondary ESD stages in handheld designs. |
| Surge Current (IEC 61000-4-5) | 28 A (8/20 µs) - Withstands lightning-induced surges on DC rails; validated per international EMC standards. |
| Dynamic Resistance | 0.05 Ω - Low impedance path during transient conduction; reduces clamping voltage rise with increasing current. |
| Operating Temperature | -40°C to +125°C - Supports automotive interior and industrial embedded environments without derating. |
Pinout & Package
AOZ8S530BLS-05 is housed in a RoHS-compliant, halogen-free WLCSP (Wafer-Level Chip Scale Package) measuring 0.6 mm × 0.3 mm × 0.3 mm, with two solder bumps for direct board attachment.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode/Cathode (Bidirectional) | Shared terminal for symmetrical conduction; connects to protected line (e.g., VBUS or data line). |
| 2 | Anode/Cathode (Bidirectional) | Shared terminal opposite Pin 1; connects to reference (GND or VCC) depending on transient polarity. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD protection | Enables single-device protection of AC-coupled or floating lines without polarity constraints. |
| Low 15 pF capacitance | Minimizes signal distortion and timing skew on low-speed buses such as SMBus, I²C, and GPIO. |
| 7.6 V clamping at 28 A | Ensures protected ICs experience <8 V overvoltage during worst-case lightning surges. |
| WLCSP 0.6 mm × 0.3 mm footprint | Reduces PCB area by >50% vs. SOD-323 or SC-70 packages; ideal for space-constrained mobile PCBs. |
| ±30 kV IEC 61000-4-2 rating | Meets highest industrial and consumer ESD immunity class without layout shielding or guard traces. |
Applications
| USB VBUS Protection | Mobile Phone Button Lines |
|---|---|
Use Scenario: Protecting 5 V VBUS line in USB Type-C receptacles against hot-plug transients and ESD events. IC Role / Device Role / Timing Role: Bidirectional TVS clamps positive and negative surges to GND or VBUS rail, limiting peak voltage to ≤7.6 V. Use Value: Prevents damage to USB controller and PMIC during repeated plug/unplug cycles in consumer devices. | Use Scenario: Shielding mechanical button or slider sense lines from user-hand ESD in smartphones and tablets. IC Role / Device Role / Timing Role: Low-capacitance (15 pF) TVS absorbs ±30 kV contact discharges without distorting DC bias or pull-up signals. Use Value: Eliminates false triggers and firmware resets caused by ESD coupling into high-impedance GPIO inputs. |
| Notebook Keyboard Interface | Industrial DC Power Rail |
Use Scenario: Guarding PS/2 or embedded keyboard scan lines against ESD in clamshell laptop hinges. IC Role / Device Role / Timing Role: Bidirectional clamping protects both active-high and active-low signaling paths without polarity assignment. Use Value: Maintains reliable key detection across full -40°C to +125°C operating range, including battery-charging thermal conditions. | Use Scenario: Safeguarding 5 V auxiliary power rails in programmable logic controllers and sensor nodes. IC Role / Device Role / Timing Role: Absorbs 28 A IEC 61000-4-5 surges induced by nearby motor switching or relay bounce. Use Value: Enables single-stage protection without series resistors or ferrites-reducing BOM count and layout complexity. |
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 | Unidirectional, DO-214AC package (4.1 mm × 2.7 mm), 100 pF capacitance, 9.2 V clamping at 22.5 A. | Requires polarity-aware placement; unsuitable for AC-coupled or floating lines; higher capacitance limits data rate. | Select SMAJ5.0A only when board space allows larger package and unidirectional protection suffices. |
| TPD2E001DRYR | 2-channel, 12 pF per channel, SOT-563 package, ±8 kV HBM, ±15 kV IEC 61000-4-2, 12 V clamping at 1 A. | Lower ESD rating and higher clamping limit its use to non-critical I/O; dual-channel reduces component count but increases trace coupling risk. | Choose TPD2E001DRYR for cost-sensitive dual-line protection where ±15 kV ESD is sufficient and 12 V clamping is acceptable. |
Compared with SMAJ5.0A and TPD2E001DRYR, the AOZ8S530BLS-05 delivers superior ESD robustness (±30 kV), lower clamping (7.6 V @ 28 A), and ultra-compact WLCSP packaging-making it optimal for high-density mobile VBUS and button-line protection where space and performance are co-constrained.
Availability
AOZ8S530BLS-05 is available at Aetrix Electronics and suitable for USB VBUS protection, mobile phone button lines, and industrial DC power rail applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for AOZ8S530BLS-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 & Omega Semiconductor (AOS) is a fabless power semiconductor company specializing in MOSFETs, TVS diodes, and power ICs for high-efficiency, high-reliability applications.
The AOZ8S series targets ultra-compact, high-performance ESD protection for portable electronics, emphasizing low capacitance, bidirectional symmetry, and wafer-level packaging to meet shrinking PCB real estate demands.
FAQ
What is the maximum clamping voltage of the AOZ8S530BLS-05 under IEC 61000-4-5 surge conditions?
The AOZ8S530BLS-05 exhibits a maximum clamping voltage of 7.6 V at 28 A peak pulse current (8/20 µs waveform), as specified in the Electrical Characteristics table on page 3 of the Rev. 1.1 datasheet. This value is measured pin-to-pin and guarantees protection of downstream 5 V logic circuits during lightning-surge events without exceeding safe overvoltage thresholds.
Does the AOZ8S530BLS-05 require polarity-specific PCB layout?
No, the AOZ8S530BLS-05 is a fully bidirectional TVS diode, meaning it provides symmetrical clamping for both positive and negative transients without regard to orientation. Its WLCSP pinout has no designated anode or cathode-either terminal may connect to the protected line or reference rail, simplifying layout and eliminating polarity errors during assembly.
What is the junction capacitance of the AOZ8S530BLS-05, and how does it affect signal integrity?
The AOZ8S530BLS-05 has a typical junction capacitance of 15 pF, measured at 0 V and 1 MHz. This low value minimizes loading on low-speed data lines (e.g., I²C, SMBus, GPIO), preserving rise/fall times and preventing signal degradation-critical for reliable operation in mobile and notebook applications where trace lengths are short and impedance control is limited.
Is the AOZ8S530BLS-05 compliant with RoHS and halogen-free standards?
Yes, the AOZ8S530BLS-05 is RoHS compliant and halogen-free, as confirmed in the Ordering Information section (page 2) and Green Product statement (page 1) of the Rev. 1.1 datasheet. It adheres to AOS' Green Policy, using reduced halogen levels while maintaining full electrical and thermal performance across its -40°C to +125°C operating range.
Can the AOZ8S530BLS-05 be used to protect USB 2.0 D+ and D- lines?
No-the AOZ8S530BLS-05 is not recommended for USB 2.0 high-speed differential pairs due to its 15 pF capacitance, which exceeds the typical ≤3 pF requirement for 480 Mbps signaling. It is explicitly intended for VBUS, low-speed data lines (e.g., I²C), and DC rails-not high-bandwidth interfaces. For USB 2.0, AOS offers dedicated low-capacitance arrays like AOZ8206DI.
AOZ8S530BLS-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):
- 5.5V (Max)
- Voltage - Breakdown (Min):
- 5.8V
- Voltage - Clamping (Max) @ Ipp:
- 7.6V (Typ)
- Current - Peak Pulse (10/1000µs):
- 28A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 15pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-WLCSP (0.6x0.3)
AOZ8S530BLS-05 FAQ
1.How can I place an order for AOZ8S530BLS-05 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8S530BLS-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 AOZ8S530BLS-05 reliable?
The price and inventory of AOZ8S530BLS-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8S530BLS-05 is usually 5 days.
3.What payment methods are accepted for AOZ8S530BLS-05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8S530BLS-05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8S530BLS-05?
AOZ8S530BLS-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8S530BLS-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 AOZ8S530BLS-05?
For technical support, including AOZ8S530BLS-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8S530BLS-05 requirements.
6.How does Aetrix verify that AOZ8S530BLS-05 is sourced from the original manufacturer or authorized distributors?
All AOZ8S530BLS-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 AOZ8S530BLS-05 meets industry standards.
7.What is the process for return or replacement of AOZ8S530BLS-05?
All AOZ8S530BLS-05 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8S530BLS-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 AOZ8S530BLS-05 part is unused and in its original packaging.
Return procedure for AOZ8S530BLS-05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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