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Vishay General Semiconductor - Diodes Division VESD03A2-03G-G3-08
- Part No.:
- VESD03A2-03G-G3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
VESD03A2-03G-G3-08.pdf
- Description:
- TVS DIODE 3VWM 8.7VC SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:19,083
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Product details
Overview
VESD03A2-03G-G3-08 from Vishay Semiconductors is a dual-line unidirectional ESD-protection diode array in SOT-323 package, rated for 3 V reverse stand-off voltage, 30 kV IEC 61000-4-2 contact/air discharge immunity, and 100 W peak pulse power (8/20 μs), deployed on high-speed USB 2.0 data lines to suppress transient overvoltage.
For engineers reviewing the VESD03A2-03G-G3-08 datasheet, VESD03A2-03G-G3-08 pinout, VESD03A2-03G-G3-08 application, or VESD03A2-03G-G3-08 equivalent, this page delivers verified electrical specs, SOT-323 terminal mapping, automotive-grade AEC-Q101 qualification status, and real-world clamping behavior under ESD stress.
Technical Context
The VESD03A2-03G-G3-08 integrates two independent unidirectional avalanche diodes in a single SOT-323 package, with each channel configured as a cathode-to-rail clamp. It operates within -55 °C to +150 °C junction temperature range and meets AEC-Q101 stress test requirements for automotive electronics.
Its 89–135 pF capacitance at 0 V bias enables use on 480 Mbps USB 2.0 interfaces without signal integrity degradation, while dynamic resistance of 0.19 Ω (TLP, 100 ns) ensures low-voltage clamping during fast transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage | 3 V - Maximum continuous working voltage before leakage exceeds 20 μA; sets upper limit for protected line DC bias. |
| Reverse Clamping Voltage | 7.8–8.7 V at 11.6 A (8/20 μs) - Peak voltage seen by downstream IC during worst-case surge; protects 3.3 V logic rails. |
| Capacitance | 89–135 pF at 0 V, 1 MHz - Low enough for USB 2.0 eye diagram compliance; avoids signal rise-time degradation. |
| ESD Immunity | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - Full 10-pulse rating ensures robustness against repeated human-body-model discharges. |
| Peak Pulse Power | 100 W (8/20 μs) - Sustains high-energy surges per IEC 61000-4-5 without thermal failure. |
| Dynamic Resistance | 0.19 Ω (TLP, 100 ns) - Enables rapid voltage clamping response; minimizes overshoot during nanosecond-scale transients. |
Pinout & Package
SOT-323 package: 3-pin surface-mount plastic case (2.2 mm × 1.35 mm × 0.95 mm), MSL level 1, lead-free Sn (e3) terminations, compatible with standard reflow profiles up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Channel 1 | Connected to protected signal line (e.g., USB D+); conducts during positive ESD events toward ground. |
| Pin 2 | Anode of Channel 2 | Connected to second protected signal line (e.g., USB D−); independent clamping path for differential pair. |
| Pin 3 | Cathodes (Common) | Shared cathode tied to system ground; establishes reference for both unidirectional clamps. |
Key Features
| Feature | Design Value |
|---|---|
| Compact SOT-323 footprint | Enables placement directly at connector entry point with minimal PCB area (2.2 mm × 1.35 mm), reducing trace inductance and improving protection efficacy. |
| Unidirectional dual-channel architecture | Provides separate anode inputs per line with common cathode, eliminating cross-talk between protected signals and supporting asymmetric voltage rail configurations. |
| AEC-Q101 qualified option | Validated for automotive applications including infotainment and body control modules where reliability under thermal cycling and vibration is mandatory. |
| Low dynamic resistance | 0.19 Ω ensures sub-10 V clamping at 11.6 A surge, limiting stress on 3.3 V interface ICs beyond what static VBR alone implies. |
Applications
| USB 2.0 Interface Protection | Automotive Infotainment Port |
|---|---|
Use Scenario: Protecting high-speed D+/D− differential pair on laptop docking station against user-handling ESD. IC Role / Device Role / Timing Role: Unidirectional clamping diode array placed at board edge, shunting transients to chassis ground before reaching USB transceiver. Use Value: 89–135 pF capacitance preserves 480 Mbps signal integrity; ±30 kV immunity prevents latch-up or damage during plug/unplug cycles. | Use Scenario: Safeguarding HDMI or USB-C ports in vehicle head units exposed to dry-climate static discharge. IC Role / Device Role / Timing Role: Dual-line ESD suppressor mounted adjacent to connector, referenced to automotive ground with <1 nH loop inductance. Use Value: AEC-Q101 qualification ensures operation across -40 °C to +105 °C ambient; 100 W pulse rating handles load-dump coupled transients. |
| Industrial Sensor Interface | Medical Data Acquisition Port |
Use Scenario: Shielding RS-485 or CAN FD data lines in factory-floor PLC I/O modules from maintenance personnel ESD. IC Role / Device Role / Timing Role: Line-side transient suppressor on bidirectional bus lines, leveraging common-cathode configuration for compact routing. Use Value: 3 V VRWM matches 3.3 V logic supply; 7.8–8.7 V clamping prevents receiver input overvoltage beyond absolute maximum ratings. | Use Scenario: Securing patient-monitor USB ports against clinical staff ESD in hospital environments. IC Role / Device Role / Timing Role: Final-stage ESD guard on medical-grade USB 2.0 host controller interface, certified to IEC 61000-4-2 Level 4. Use Value: Lead-free Sn (e3) plating supports RoHS-compliant assembly; MSL level 1 eliminates bake requirements pre-reflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD-protection diode array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J3.3A-Q | Single-channel, SMA package (larger footprint), 3.3 V VRWM, 100 W rating, 100 pF typical capacitance. | Requires two devices for dual-line protection; less space-efficient than integrated dual-channel VESD03A2-03G-G3-08. | Select when legacy SMA layout exists or higher surge current margin (>15 A) is required. |
| TPD2E001DRSR | Two-channel, SOT-563 package, 3.3 V VRWM, ±8 kV contact ESD rating, 12 pF capacitance. | Lower ESD immunity (±8 kV vs. ±30 kV); optimized for ultra-low-capacitance high-speed interfaces like HDMI 2.0. | Select when signal bandwidth >5 Gbps demands sub-15 pF loading, accepting reduced ESD robustness. |
Compared with SMA6J3.3A-Q and TPD2E001DRSR, the VESD03A2-03G-G3-08 uniquely balances 30 kV ESD immunity, dual-channel integration in SOT-323, and 89–135 pF capacitance-making it optimal for cost-sensitive, space-constrained USB 2.0 and automotive port protection where full IEC 61000-4-2 Level 4 compliance is mandatory.
Availability
VESD03A2-03G-G3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment ports, and industrial sensor data lines requiring stable component supply across production lifecycles.
Supply support for VESD03A2-03G-G3-08 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
Vishay Semiconductors designs discrete semiconductors and passive components with emphasis on reliability, power efficiency, and signal integrity for industrial, automotive, and computing markets.
The VESDxxA2-03G family targets board-level ESD suppression in high-density portable and automotive electronics, delivering standardized dual-line protection with scalable voltage ratings from 1 V to 33 V.
FAQ
What is the maximum operating temperature for VESD03A2-03G-G3-08?
The VESD03A2-03G-G3-08 has a junction temperature range of -55 °C to +150 °C, enabling deployment in under-hood automotive environments and industrial enclosures without derating. This rating is validated per AEC-Q101 stress tests and applies to continuous operation under specified power dissipation limits.
Does VESD03A2-03G-G3-08 meet AEC-Q101 qualification?
The VESD03A2-03G-G3-08 is offered in an AEC-Q101 qualified version (marked with "H" in ordering code, e.g., VESD03A2-03GHG3A08). The base part number VESD03A2-03G-G3-08 itself is not automatically qualified-qualification requires explicit ordering with the "H" environmental code and associated test documentation from Vishay.
What is the reverse leakage current of VESD03A2-03G-G3-08 at its rated stand-off voltage?
At VR = 3 V, the reverse leakage current (IR) for VESD03A2-03G-G3-08 is 8–20 μA maximum. This low leakage ensures minimal impact on signal line biasing and power budget in battery-operated USB peripherals or always-on automotive modules.
Can VESD03A2-03G-G3-08 be used for bidirectional signal lines like RS-485?
No-VESD03A2-03G-G3-08 is unidirectional only, with anodes on pins 1 and 2 and a common cathode on pin 3. For bidirectional lines such as RS-485, a symmetric dual-diode configuration (e.g., VESD05A2-03G-G3 for 5 V lines) or dedicated bidirectional arrays must be selected.
What is the clamping voltage of VESD03A2-03G-G3-08 under a full IEC 61000-4-5 surge?
Under an 8/20 μs IEC 61000-4-5 surge at IPPM = 11.6 A, the VESD03A2-03G-G3-08 clamps to 7.8–8.7 V (typical 8.25 V). This value is measured between pin 1–3 or 2–3 and defines the maximum voltage imposed on protected circuitry during high-energy transients.
VESD03A2-03G-G3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- SC-70, SOT-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3V (Max)
- Voltage - Breakdown (Min):
- 4.4V
- Voltage - Clamping (Max) @ Ipp:
- 8.7V
- Current - Peak Pulse (10/1000µs):
- 11.6A (8/20µs)
- Power - Peak Pulse:
- 100W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 112pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
VESD03A2-03G-G3-08 FAQ
1.How can I place an order for VESD03A2-03G-G3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VESD03A2-03G-G3-08 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 VESD03A2-03G-G3-08 reliable?
The price and inventory of VESD03A2-03G-G3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VESD03A2-03G-G3-08 is usually 5 days.
3.What payment methods are accepted for VESD03A2-03G-G3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VESD03A2-03G-G3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VESD03A2-03G-G3-08?
VESD03A2-03G-G3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VESD03A2-03G-G3-08 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 VESD03A2-03G-G3-08?
For technical support, including VESD03A2-03G-G3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VESD03A2-03G-G3-08 requirements.
6.How does Aetrix verify that VESD03A2-03G-G3-08 is sourced from the original manufacturer or authorized distributors?
All VESD03A2-03G-G3-08 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 VESD03A2-03G-G3-08 meets industry standards.
7.What is the process for return or replacement of VESD03A2-03G-G3-08?
All VESD03A2-03G-G3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VESD03A2-03G-G3-08, 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 VESD03A2-03G-G3-08 part is unused and in its original packaging.
Return procedure for VESD03A2-03G-G3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VESD03A2-03G-G3-08 Tags
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