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Vishay General Semiconductor - Diodes Division VESD01A2-03G-G3-08
- Part No.:
- VESD01A2-03G-G3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-70, SOT-323
- Datasheet:
-
VESD01A2-03G-G3-08.pdf
- Description:
- TVS DIODE 1VWM 6.9VC SOT323
- Quantity:
- Payment:
- Shipping:
Inventory:6,115
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Product details
Overview
VESD01A2-03G-G3-08 from Vishay Semiconductors is a dual-line unidirectional ESD-protection diode array in SOT-323 package, rated for 1 V reverse stand-off voltage, ±30 kV IEC 61000-4-2 contact/air discharge immunity, and 70 W peak pulse power (8/20 μs), deployed in high-reliability USB 2.0 data line protection.
For engineers reviewing the VESD01A2-03G-G3-08 datasheet, VESD01A2-03G-G3-08 pinout, VESD01A2-03G-G3-08 application, or VESD01A2-03G-G3-08 equivalent, key selection criteria include clamping voltage at 11 A (≤6.4 V), dynamic resistance (0.13 Ω), capacitance (153–230 pF), and AEC-Q101 qualification status.
Technical Context
This device implements two independent unidirectional ESD protection paths between pins 1–3 and 2–3, with reverse breakdown at 2.5–2.8 V and forward clamping of ≤3.2 V at 11 A transient current. Its low dynamic resistance (0.13 Ω) ensures rapid voltage suppression during ESD events.
The SOT-323 package supports automated optical inspection (AOI) and reflow soldering up to 260 °C peak temperature, with MSL level 1 moisture sensitivity and UL 94 V-0 flammability rating - enabling use in automotive and industrial PCB assemblies requiring robust process compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Protection Type | Unidirectional dual-channel ESD clamp - protects two signal lines independently against negative transients only. |
| Reverse Stand-off Voltage (VRWM) | 1 V - maximum continuous operating voltage before leakage exceeds 100 μA; defines safe DC bias margin for low-voltage interfaces like USB D+/D−. |
| Clamping Voltage (VC) | ≤6.4 V at 11 A (8/20 μs) - limits transient voltage seen by downstream ICs, critical for safeguarding 1.8 V or 3.3 V logic inputs. |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds Level 4 industrial requirements and qualifies for AEC-Q101 automotive applications. |
| Capacitance (CD) | 153–230 pF at 0 V / 1 MHz - impacts high-speed signal integrity; suitable for USB 2.0 (480 Mbps) but not USB 3.x or HDMI. |
| Peak Pulse Power (PPP) | 70 W (8/20 μs) - determines survivability under IEC 61000-4-5 surge conditions; lower than higher-voltage variants (e.g., VESD05A2-03G = 100 W). |
| Dynamic Resistance (rdyn) | 0.13 Ω (TLP, 100 ns) - governs voltage overshoot during fast ESD rise times; enables tighter clamping than higher-rdyn alternatives. |
Pinout & Package
SOT-323 package: 3-pin surface-mount plastic case (2.2 × 1.35 × 0.95 mm), lead-free Sn (e3) plating, MSL level 1, UL 94 V-0 compliant molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Channel 1 | Connects to protected signal line 1 (e.g., USB D+); conducts during negative ESD events toward common cathode. |
| Pin 2 | Anode of Channel 2 | Connects to protected signal line 2 (e.g., USB D−); operates independently from Pin 1 with identical clamping behavior. |
| Pin 3 | Common Cathode | Shared return path to ground or low-impedance reference; must be routed with minimal inductance for effective clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Dual unidirectional protection | Two independent anode-to-cathode paths enable separate protection of bidirectional data lines without affecting DC bias polarity. |
| Low clamping voltage | 6.4 V max at 11 A ensures downstream 1.8 V/3.3 V transceivers remain within absolute maximum ratings during ESD strikes. |
| Ultra-low dynamic resistance | 0.13 Ω minimizes voltage overshoot during sub-nanosecond ESD rise times, improving protection fidelity over standard TVS diodes. |
| AEC-Q101 qualified option | Available in H-grade variant (VESD01A2-03GHG3A08) for automotive infotainment and body electronics requiring stress-tested reliability. |
| Compact SOT-323 footprint | 2.2 × 1.35 mm outline allows placement directly at connector entry points with minimal PCB area and trace inductance. |
Applications
| USB 2.0 Interface Protection | Automotive Infotainment Ports |
|---|---|
|
Use Scenario: Protecting D+ and D− lines of USB 2.0 host/device ports against ESD events during cable insertion or handling. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed immediately adjacent to USB connector, clamping negative transients to ground. Use Value: Prevents latch-up or gate oxide damage in USB PHY ICs by limiting transient voltage to ≤6.4 V while maintaining <230 pF loading for 480 Mbps signaling. |
Use Scenario: Safeguarding auxiliary input ports (e.g., USB-A, mini-USB) in head units and display modules exposed to user interaction in vehicles. IC Role / Device Role / Timing Role: AEC-Q101-qualified ESD clamp ensuring compliance with ISO 10605 and IEC 61000-4-2 automotive test standards. Use Value: Enables reliable operation across -40 °C to +125 °C ambient with ±30 kV ESD immunity and MSL level 1 reflow compatibility for high-volume SMT assembly. |
| Industrial Control Panel Interfaces | Medical Device Data Ports |
|
Use Scenario: Shielding RS-232 or proprietary serial communication lines on HMI panels from operator-induced ESD in factory environments. IC Role / Device Role / Timing Role: Low-capacitance dual-channel protector preserving signal edge integrity on low-speed control signals (<1 Mbps). Use Value: Delivers 70 W surge handling and 0.13 Ω dynamic resistance to suppress fast transients without distorting logic-level transitions. |
Use Scenario: Securing patient-monitoring equipment USB or UART ports where ESD events could compromise diagnostic accuracy or safety-critical firmware updates. IC Role / Device Role / Timing Role: Medical-grade ESD suppressor supporting IEC 60601-1-2 ESD immunity requirements via verified ±30 kV performance. Use Value: Ensures uninterrupted data transfer during clinical use with validated 150 pF/330 Ω discharge testing and RoHS-compliant Sn termination. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMF05CT | 5 V VRWM, 100 W PPP, 12.5 V VC @ 12 A, 100 pF - higher stand-off, higher clamping, lower capacitance. | Better suited for 5 V logic buses (e.g., CAN, RS-485); unsuitable for 1 V bias rails due to leakage at low VR. | Select when protecting 3.3–5 V interfaces requiring tighter capacitance control and higher surge margin. |
| TPD2E001DRYR | 5.5 V VRWM, 120 W PPP, 12 V VC @ 4 A, 12 pF - ultra-low capacitance, higher clamping, integrated ESD structure. | Optimized for high-speed digital lines (USB 3.0, HDMI); incompatible with 1 V operation due to 5.5 V stand-off. | Choose for >1 Gbps interfaces where <15 pF loading is mandatory; avoid for sub-1 V or 1 V rail protection. |
Compared with SMF05CT and TPD2E001DRYR, VESD01A2-03G-G3-08 uniquely supports 1 V DC bias with ±30 kV ESD immunity and sub-0.15 Ω dynamic resistance - making it the only viable option for low-voltage, high-fidelity ESD protection in USB 2.0 and portable medical sensor interfaces.
Availability
VESD01A2-03G-G3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment port hardening, and industrial HMI serial line safeguarding requiring stable component supply and long-term lifecycle assurance.
Supply support for VESD01A2-03G-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 is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and passive components for automotive, industrial, and computing markets.
The VESDxxA2-03G family targets compact, high-immunity ESD protection for space-constrained, low-voltage data interfaces - emphasizing low clamping, precise stand-off matching, and AEC-Q101 qualification readiness.
FAQ
What is the maximum continuous reverse voltage the VESD01A2-03G-G3-08 can withstand?
The VESD01A2-03G-G3-08 has a reverse stand-off voltage (VRWM) of 1 V - meaning it reliably blocks up to 1 V DC or AC peak reverse voltage without exceeding 100 μA leakage current. This makes it specifically intended for ultra-low-voltage signal lines such as certain sensor interfaces or legacy 1 V logic buses, not general-purpose 3.3 V or 5 V applications. Exceeding 1 V risks premature conduction and increased power loss.
Does the VESD01A2-03G-G3-08 meet automotive qualification standards?
The base VESD01A2-03G-G3-08 is not AEC-Q101 qualified; however, the variant VESD01A2-03GHG3A08 (with 'H' environmental code) is explicitly AEC-Q101 qualified and listed in the Vishay datasheet. For automotive use, specify the 'H' version - it undergoes extended temperature cycling, humidity testing, and ESD stress validation per AEC-Q101 Rev D requirements.
How does the clamping performance of VESD01A2-03G-G3-08 compare to higher-voltage variants like VESD05A2-03G?
VESD01A2-03G-G3-08 clamps to ≤6.4 V at 11 A, whereas VESD05A2-03G clamps to ≤11.5 V at 8.7 A. The lower clamping voltage of VESD01A2-03G-G3-08 is essential for protecting 1 V–1.2 V core logic, but its lower peak pulse power (70 W vs. 100 W) reflects trade-offs in energy handling. Select VESD01A2-03G-G3-08 only when stand-off voltage and clamping threshold are primary constraints.
Can VESD01A2-03G-G3-08 be used for bidirectional signal protection?
No - VESD01A2-03G-G3-08 is unidirectional: each channel conducts only for negative transients (anode-to-cathode). It cannot protect against positive ESD events on the same line. For true bidirectional protection, a symmetrical dual-diode array (e.g., VESD05A2-03G) or external series resistor + capacitor network would be required - but that adds complexity and bandwidth limitations.
What is the typical capacitance of VESD01A2-03G-G3-08 and how does it affect USB 2.0 performance?
VESD01A2-03G-G3-08 exhibits 153–230 pF capacitance at 0 V and 1 MHz. While higher than ideal for USB 2.0 (which benefits from <10 pF), this value is acceptable for full-speed (12 Mbps) and high-speed (480 Mbps) operation when placed at the connector with short traces - verified in Vishay reference layouts. Signal integrity impact is mitigated by its low dynamic resistance and tight clamping, preserving eye diagram margins.
VESD01A2-03G-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):
- 1V (Max)
- Voltage - Breakdown (Min):
- 2.5V
- Voltage - Clamping (Max) @ Ipp:
- 6.9V
- Current - Peak Pulse (10/1000µs):
- 14.6A (8/20µs)
- Power - Peak Pulse:
- 100W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 192pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-323
VESD01A2-03G-G3-08 FAQ
1.How can I place an order for VESD01A2-03G-G3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VESD01A2-03G-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 VESD01A2-03G-G3-08 reliable?
The price and inventory of VESD01A2-03G-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 VESD01A2-03G-G3-08 is usually 5 days.
3.What payment methods are accepted for VESD01A2-03G-G3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VESD01A2-03G-G3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VESD01A2-03G-G3-08?
VESD01A2-03G-G3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VESD01A2-03G-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 VESD01A2-03G-G3-08?
For technical support, including VESD01A2-03G-G3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VESD01A2-03G-G3-08 requirements.
6.How does Aetrix verify that VESD01A2-03G-G3-08 is sourced from the original manufacturer or authorized distributors?
All VESD01A2-03G-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 VESD01A2-03G-G3-08 meets industry standards.
7.What is the process for return or replacement of VESD01A2-03G-G3-08?
All VESD01A2-03G-G3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VESD01A2-03G-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 VESD01A2-03G-G3-08 part is unused and in its original packaging.
Return procedure for VESD01A2-03G-G3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VESD01A2-03G-G3-08 Tags
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