My Inquiry
My Account
Alpha & Omega Semiconductor Inc. AOZ8831ADI-05
- Part No.:
- AOZ8831ADI-05
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Category:
- TVS Diodes
- Package:
- 2-UDFN
- Datasheet:
-
AOZ8831ADI-05.pdf
- Description:
- TVS DIODE 5VWM 19.5VC 2DFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,074
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AOZ8831ADI-05 from Alpha and Omega Semiconductor is an ultra-low-capacitance (0.30 pF), bidirectional TVS diode in a 1.0×0.6×0.5 mm DFN package, rated for 5.0 V working reverse voltage, ±25 kV IEC 61000-4-2 contact ESD protection, and 2.5 A peak pulse current - designed to protect high-speed data lines in portable electronics.
For engineers reviewing the AOZ8831ADI-05 datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage (14.0 V @ 2 A), low leakage (<10 nA @ 5 V), junction temperature range (−40°C to +125°C), RoHS-compliant green packaging, and IEC 61000-4-2 Level 4 compliance.
Technical Context
The AOZ8831ADI-05 implements a single monolithic silicon avalanche structure configured as a bidirectional transient suppressor, enabling symmetrical clamping on both polarities without external biasing. Its 0.30 pF capacitance at 0 V and 1 MHz ensures minimal signal distortion on USB 2.0, HDMI, or MIPI D-PHY lines.
It operates within −40°C to +85°C ambient, with a maximum junction temperature of +125°C, and meets IEC 61000-4-2 (±25 kV contact, ±30 kV air) and HBM (±25 kV) standards - validated using 150 pF/330 Ω discharge networks per specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Capacitance (CJ) | 0.30 pF typical @ 0 V, 1 MHz - preserves signal integrity on >480 Mbps data lines |
| Working Peak Reverse Voltage (VRWM) | 5.0 V - matches standard 5 V I/O rail protection requirements |
| Clamping Voltage (VCL) | 14.0 V max @ 2 A IPP - limits transient overvoltage to safe levels for downstream ICs |
| ESD Rating (IEC 61000-4-2) | ±25 kV contact, ±30 kV air - exceeds Level 4 immunity for handheld device interfaces |
| Peak Pulse Current (IPP) | 2.5 A @ 8/20 µs - handles common surge events without degradation |
| Leakage Current (IR) | <10 nA @ 5 V - avoids loading of high-impedance signal paths |
| Package Dimensions | 1.0 × 0.6 × 0.5 mm DFN - enables placement adjacent to connectors on space-constrained PCBs |
Pinout & Package
AOZ8831ADI-05 uses a 2-pin DFN 1.0×0.6 mm package with exposed pad (no thermal pad connection required). Pin 1 and Pin 2 are symmetrical terminals for bidirectional protection of a single line - no polarity marking or orientation dependency.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode/Cathode (bidirectional) | Interconnects to protected signal line; identical function to Pin 2 due to symmetric TVS structure |
| Pin 2 | Anode/Cathode (bidirectional) | Completes the two-terminal transient path; no ground or power reference required |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional ESD suppression | Enables single-device protection of AC-coupled or differential lines without polarity concerns |
| 0.30 pF capacitance | Minimizes insertion loss & phase shift on USB 2.0 and MIPI D-PHY signals up to 480 Mbps |
| 14.0 V clamping @ 2 A | Keeps downstream logic inputs below absolute maximum ratings during 8/20 µs surges |
| RoHS-compliant green package | Meets global environmental regulations without halogen content or lead |
| −40°C to +85°C operating range | Supports deployment in consumer portable devices across all climatic conditions |
Applications
| USB 2.0 Data Lines | MIPI D-PHY Interfaces |
|---|---|
Use Scenario: Protecting D+ and D− pins of USB 2.0 transceivers in smartphones and tablets against ESD events during plug/unplug cycles. IC Role / Device Role / Timing Role: Two-terminal bidirectional TVS placed directly at the connector, shunting transients before reaching the PHY IC. Use Value: 0.30 pF capacitance prevents signal rise-time degradation, maintaining eye diagram compliance at 480 Mbps. | Use Scenario: Safeguarding high-speed camera sensor interfaces in mobile devices where compact layout and low jitter are critical. IC Role / Device Role / Timing Role: Single-line protection on clock or data lanes between image sensor and SoC, minimizing added parasitics. Use Value: Clamping voltage ≤14.0 V ensures MIPI receiver input stays within 1.2 V tolerance window during ±25 kV ESD strikes. |
| Keypad & Button Inputs | Portable GPS Antenna Lines |
Use Scenario: Shielding mechanical keypad traces in ruggedized handhelds from user-induced ESD during frequent button presses. IC Role / Device Role / Timing Role: Low-leakage (≤10 nA) TVS connected inline with each key trace, preserving pull-up/pull-down functionality. Use Value: Ultra-small 1.0×0.6 mm footprint allows placement directly under membrane switches without routing detours. | Use Scenario: Protecting RF front-end antenna switch control lines in portable GPS receivers exposed to static discharge during handling. IC Role / Device Role / Timing Role: Bidirectional clamp on GPIO-controlled RF switch enable lines, preventing latch-up in CMOS drivers. Use Value: 5.0 V VRWM aligns with typical 3.3 V or 5 V GPIO rails while offering ±25 kV ESD margin. |
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, 5.0 V VRWM, 600 W peak power, 17.5 V clamping @ 10 A, 1.5 pF capacitance | Requires polarity-aware layout; unsuitable for AC-coupled or differential lines | Select only when protecting DC-biased lines with higher surge energy tolerance needed |
| TPD2E001DRYR | Bidirectional, 5.0 V VRWM, 0.8 pF capacitance, ±8 kV IEC 61000-4-2, SOT-553 package (1.6×1.6 mm) | Lower ESD rating and larger footprint; not suitable for Level 4 compliance-critical designs | Consider only for cost-sensitive, non-certified portable accessories with relaxed ESD requirements |
Compared with SMAJ5.0A and TPD2E001DRYR, the AOZ8831ADI-05 uniquely delivers Level 4 ESD immunity in a sub-1 mm² footprint with <0.35 pF capacitance - making it the only option among the three qualified for high-speed, space-constrained, certified portable designs.
Availability
AOZ8831ADI-05 is available at Aetrix Electronics and suitable for portable handheld devices, notebook computers, and digital cameras requiring stable component supply with full RoHS and green compliance.
Supply support for AOZ8831ADI-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 AOZ8831ADI-05 belongs to AOS's ultra-low-capacitance TVS portfolio, engineered specifically for ESD protection of high-speed serial interfaces in miniaturized consumer electronics.
FAQ
What is the clamping voltage of AOZ8831ADI-05 at 2 A peak pulse current?
The AOZ8831ADI-05 has a maximum clamping voltage of 14.0 V at 2 A peak pulse current (8/20 µs waveform), as specified in its Electrical Characteristics table. This value ensures protected circuits remain within safe operating limits during transient events. The AOZ8831ADI-05 maintains consistent clamping performance across its −40°C to +85°C operating ambient range.
Is AOZ8831ADI-05 suitable for USB 2.0 interface protection?
Yes, AOZ8831ADI-05 is explicitly suited for USB 2.0 protection due to its 0.30 pF typical capacitance, which minimizes signal distortion at 480 Mbps, and its bidirectional architecture that accommodates AC-coupled D+ and D− lines. The AOZ8831ADI-05 also meets IEC 61000-4-2 Level 4 (±25 kV contact), a common requirement for USB port certification.
Does AOZ8831ADI-05 require a ground connection?
No, AOZ8831ADI-05 is a two-terminal bidirectional TVS diode and does not require a dedicated ground reference. It connects inline between the protected signal line and return path (e.g., ground or complementary line), relying on its symmetrical avalanche structure. The AOZ8831ADI-05 functions correctly without any third terminal or bias network.
What is the maximum operating temperature for AOZ8831ADI-05?
The AOZ8831ADI-05 is rated for an ambient operating temperature range of −40°C to +85°C, with a maximum junction temperature of +125°C. This allows reliable operation in portable electronics subject to internal heating and external environmental extremes. The AOZ8831ADI-05's thermal performance is validated in its DFN 1.0×0.6 mm package without heatsinking.
How does AOZ8831ADI-05 compare to standard 5 V unidirectional TVS diodes?
Unlike unidirectional TVS diodes such as SMAJ5.0A, the AOZ8831ADI-05 provides symmetrical clamping for both positive and negative transients without polarity constraints - essential for AC-coupled data lines. Its 0.30 pF capacitance is ~5× lower than typical SMAJ devices, and the AOZ8831ADI-05 achieves ±25 kV contact ESD rating in a 60% smaller footprint.
AOZ8831ADI-05 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Alpha & Omega Semiconductor Inc.
- Package/Case:
- 2-UDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Not For New Designs
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 19.5V
- Current - Peak Pulse (10/1000µs):
- 2.5A (8/20µs)
- Power - Peak Pulse:
- 40W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 0.3pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 2-DFN (1x0.6)
AOZ8831ADI-05 FAQ
1.How can I place an order for AOZ8831ADI-05 through Aetrix?
Please submit a Request for Quotation (RFQ) for AOZ8831ADI-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 AOZ8831ADI-05 reliable?
The price and inventory of AOZ8831ADI-05 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AOZ8831ADI-05 is usually 5 days.
3.What payment methods are accepted for AOZ8831ADI-05?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AOZ8831ADI-05 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AOZ8831ADI-05?
AOZ8831ADI-05 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AOZ8831ADI-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 AOZ8831ADI-05?
For technical support, including AOZ8831ADI-05 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AOZ8831ADI-05 requirements.
6.How does Aetrix verify that AOZ8831ADI-05 is sourced from the original manufacturer or authorized distributors?
All AOZ8831ADI-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 AOZ8831ADI-05 meets industry standards.
7.What is the process for return or replacement of AOZ8831ADI-05?
All AOZ8831ADI-05 units undergo pre-shipment inspection (PSI). If there is an issue with AOZ8831ADI-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 AOZ8831ADI-05 part is unused and in its original packaging.
Return procedure for AOZ8831ADI-05:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AOZ8831ADI-05 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
