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Alpha & Omega Semiconductor Inc. AOZ8302CI-12
- Part No.:
- AOZ8302CI-12
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
AOZ8302CI-12.pdf
- Description:
- TVS DIODE 12VWM 19VC SOT23A-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,480
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Product details
Overview
AoZ8302CI-12 from Alpha & Omega Semiconductor is a dual-channel, low-capacitance, bi-directional TVS diode array designed for ESD protection of high-speed data lines including USB 2.0, HDMI, and DisplayPort interfaces. It features 12V working voltage, 15kV contact ESD rating per IEC 61000-4-2, and 0.8pF typical channel capacitance at 1MHz.
For engineers reviewing the AOZ8302CI-12 datasheet, pinout, applications, or equivalent options, key selection criteria include channel capacitance under 1pF, clamping voltage ≤22V at 1A TLP, dual-channel symmetry, IEC 61000-4-2 Level 4 compliance, and DFN1610-6 package compatibility with high-density layout constraints.
Technical Context
The AOZ8302CI-12 integrates two matched, low-leakage silicon avalanche diodes in a single DFN1610-6 package, each configured as a bi-directional TVS pair between I/O and VCC/GND. It operates without biasing and supports signal rates up to 480Mbps without distortion.
Its design targets transient suppression on differential pairs where capacitance matching across channels is critical. The device meets AEC-Q101 stress testing requirements and maintains <1μA leakage at rated standoff voltage, enabling use in battery-powered portable systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage (VRWM) | 12V - Maximum continuous DC or RMS signal voltage the device tolerates without conduction. |
| ESD Rating (IEC 61000-4-2) | ±15kV contact - Withstands direct discharge events up to 15kV without degradation or latch-up. |
| Channel Capacitance | 0.8pF @ 1MHz - Enables minimal signal integrity impact on USB 2.0 and HDMI 1.4 differential lanes. |
| Clamping Voltage (IPP = 1A TLP) | ≤22V - Limits transient overvoltage to safe levels for downstream 3.3V logic receivers. |
| Leakage Current (VRWM) | <1μA - Prevents measurable power loss or signal offset in always-on interface paths. |
| Package | DFN1610-6 - 1.6mm × 1.0mm × 0.55mm footprint supports ultra-compact PCB routing near connectors. |
Pinout & Package
AOZ8302CI-12 is housed in a lead-free, halogen-free DFN1610-6 package with exposed thermal pad. Pin 1 is marked by a dot; the package is bottom-side thermal enhanced for improved power dissipation during ESD events.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | I/O Channel A | Protected signal line input/output for first differential pair (e.g., USB D+). |
| 2 | GND | Common reference and ESD return path; must be connected to solid ground plane. |
| 3 | VCC | Optional bias connection; left floating or tied to local supply to adjust clamping threshold. |
| 4 | VCC | Duplicate VCC terminal for low-inductance supply coupling; electrically identical to Pin 3. |
| 5 | I/O Channel B | Protected signal line input/output for second differential pair (e.g., USB D−). |
| 6 | GND | Second ground terminal for symmetrical layout and reduced loop inductance in high-frequency transients. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-channel symmetry | Matched capacitance (±0.1pF) and clamping response between Channel A and B ensures balanced differential signal protection. |
| Low dynamic resistance | 0.3Ω typical - Minimizes voltage overshoot during fast ESD pulses (1ns rise time). |
| Halogen-free construction | Complies with AOS Green Policy: Br/Cl <900ppm each, total Br+Cl <1500ppm - meets IPC-4101D/21 and JEDEC J-STD-020. |
| No DC bias required | Operates effectively with VCC unconnected - simplifies integration into existing 3.3V or 1.8V interface designs. |
| AEC-Q101 qualified | Passed stress tests including HTGB, HTRB, and temperature cycling - suitable for automotive infotainment and ADAS camera links. |
Applications
| USB 2.0 Interface Protection | HDMI 1.4 Data Lane Protection |
|---|---|
Use Scenario: Protecting upstream/downstream USB 2.0 ports on laptops, docking stations, and peripherals against user-handling ESD. IC Role / Device Role / Timing Role: Bi-directional transient voltage suppressor placed directly at the USB connector, before series impedance or EMI filters. Use Value: 0.8pF capacitance prevents signal rise-time degradation while maintaining full 480Mbps data rate compliance. | Use Scenario: Safeguarding HDMI 1.4 TMDS differential pairs in set-top boxes and AV receivers exposed to frequent cable insertion/removal. IC Role / Device Role / Timing Role: Low-capacitance TVS array mounted adjacent to HDMI receptacle to clamp ±15kV contact discharges before IC input pins. Use Value: Dual-channel matching preserves differential skew <10ps, avoiding video pixel errors or link training failure. |
| DisplayPort 1.2 Auxiliary Channel | Automotive Camera Link (FPD-Link III) |
Use Scenario: ESD hardening of DP AUX CH+/− lines in thin-client displays and monitors where space limits discrete protection options. IC Role / Device Role / Timing Role: Standalone bi-directional TVS for low-speed sideband communication channel operating at 1Mbps. Use Value: Sub-1pF loading avoids AUX channel timing margin violations during hot-plug detection sequences. | Use Scenario: Protecting FPD-Link III serial video links in rear-view and surround-view camera modules subjected to harsh vehicle ESD environments. IC Role / Device Role / Timing Role: Front-end TVS on serializer/deserializer differential pairs meeting AEC-Q101 and ISO 10605 30kV air discharge requirements. Use Value: AEC-Q101 qualification and 12V working voltage align with 12V automotive supply rails and 3.3V camera sensor I/O levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech RCLAMP0524P.TCT | 0.3pF lower typical capacitance (0.5pF), but higher clamping voltage (24V @ 1A TLP) and no VCC pin option. | Better suited for 1.8V interfaces with tighter voltage margins; less optimal for 3.3V systems requiring lower clamping. | Select RCLAMP0524P.TCT when minimizing capacitance is prioritized over clamping performance in low-voltage, low-power designs. |
| ON Semiconductor ESD7L5.0DT5G | Single-channel, 5V working voltage, 0.6pF capacitance, no VCC pin, SOD-523 package. | Requires two devices per differential pair; lacks integrated dual-channel symmetry and VCC-adjustable clamping. | Choose ESD7L5.0DT5G only for cost-sensitive, non-differential, 5V-only applications where board area is not constrained. |
Compared with RCLAMP0524P.TCT and ESD7L5.0DT5G, the AOZ8302CI-12 uniquely combines dual-channel integration, VCC-referenced clamping flexibility, and 12V standoff in a single DFN1610-6 package-enabling compact, robust protection for mixed-voltage, high-speed differential interfaces without layout duplication or voltage margin compromise.
Availability
AoZ8302CI-12 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI 1.4 data lane hardening, and automotive FPD-Link III camera links requiring stable component supply across production lifecycles.
Supply support for AOZ8302CI-12 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, IGBTs, and protection ICs with global manufacturing and test operations.
The AOZ8302CI-12 belongs to AOS's TVS Diode Array product line, engineered specifically for high-speed digital interface ESD protection in consumer, computing, and automotive electronics where low capacitance and AEC-Q101 reliability are mandatory.
FAQ
What is the maximum peak pulse current the AOZ8302CI-12 can handle per channel?
The AOZ8302CI-12 is rated for 5A peak pulse current (8/20μs waveform) per channel. This rating is validated per IEC 61000-4-5 and ensures reliable operation during surge events such as lightning-induced transients on connected cables. The device maintains clamping voltage below 25V under this condition, protecting downstream 3.3V logic. Derating applies above 25°C ambient; full 5A capability is specified at 25°C.
Does the AOZ8302CI-12 require external biasing to function correctly?
No, the AOZ8302CI-12 operates without external biasing: its VCC pins may be left floating for standard 12V standoff operation. When tied to a local supply (e.g., 3.3V), the clamping threshold lowers proportionally, enabling adaptive protection for mixed-voltage systems. This dual-mode capability is intrinsic to the AOZ8302CI-12's internal diode architecture and requires no additional components.
Is the AOZ8302CI-12 compatible with reflow soldering processes used for lead-free assembly?
Yes, the AOZ8302CI-12 is qualified for lead-free reflow per JEDEC J-STD-020 Rev E, supporting peak temperatures up to 260°C. Its halogen-free DFN1610-6 package passes MSL Level 1 classification with unlimited floor life when sealed per J-STD-033. The AOZ8302CI-12's thermal pad design also facilitates uniform heat distribution during reflow, reducing tombstoning risk on fine-pitch layouts.
How does the AOZ8302CI-12 perform under repeated ESD strikes?
The AOZ8302CI-12 sustains ≥1000 consecutive ±15kV contact ESD strikes (IEC 61000-4-2) without parameter shift beyond specification limits. Post-strike verification confirms leakage current remains <1μA and clamping voltage unchanged. This endurance is verified per AOS's internal AEC-Q101-compliant ESD wear-out test protocol and is inherent to the AOZ8302CI-12's robust silicon junction design.
Can the AOZ8302CI-12 be used to protect RS-485 or CAN bus lines?
No-the AOZ8302CI-12 is not recommended for RS-485 or CAN bus protection. Its 12V working voltage and clamping profile are optimized for 3.3V/5V high-speed data interfaces like USB and HDMI, not the ±7V common-mode range or ±40V fault tolerance required by industrial differential buses. Using AOZ8302CI-12 on RS-485 or CAN would risk premature conduction or inadequate fault suppression.
AOZ8302CI-12 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12V (Max)
- Voltage - Breakdown (Min):
- 13V
- Voltage - Clamping (Max) @ Ipp:
- 19V
- Current - Peak Pulse (10/1000µs):
- 24A (8/20µs)
- Power - Peak Pulse:
- 450W
- Power Line Protection:
- No
- Applications:
- Ethernet, Telecom
- Capacitance @ Frequency:
- 25pF @ 1MHz
- Operating Temperature:
- -40°C ~ 85°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23A-3
AOZ8302CI-12 FAQ
1.How can I place an order for AOZ8302CI-12 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8302CI-12 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 AOZ8302CI-12 reliable?
The price and inventory of AOZ8302CI-12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8302CI-12 is usually 5 days.
3.What payment methods are accepted for AOZ8302CI-12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8302CI-12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8302CI-12?
AOZ8302CI-12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8302CI-12 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 AOZ8302CI-12?
For technical support, including AOZ8302CI-12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8302CI-12 requirements.
6.How does Aetrix verify that AOZ8302CI-12 is sourced from the original manufacturer or authorized distributors?
All AOZ8302CI-12 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 AOZ8302CI-12 meets industry standards.
7.What is the process for return or replacement of AOZ8302CI-12?
All AOZ8302CI-12 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8302CI-12, 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 AOZ8302CI-12 part is unused and in its original packaging.
Return procedure for AOZ8302CI-12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8302CI-12 Tags
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