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Vishay General Semiconductor - Diodes Division VESD05A1-02VHG3-08
- Part No.:
- VESD05A1-02VHG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
VESD05A1-02VHG3-08.pdf
- Description:
- TVS DIODE 5VWM 12VC SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:15,362
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Product details
Overview
VESD05A1-02VHG3-08 from Vishay Semiconductors is a single-line bidirectional asymmetrical (BiAs) ESD protection diode in SOD-523 package, rated for 0 V to 5 V working range, with ±30 kV IEC 61000-4-2 contact/air discharge immunity and 16 A 8/20 μs surge current capability - deployed on high-speed data lines including USB 2.0 and HDMI interfaces.
For engineers reviewing the VESD05A1-02VHG3-08 datasheet, VESD05A1-02VHG3-08 pinout, VESD05A1-02VHG3-08 application, or VESD05A1-02VHG3-08 equivalent, key selection criteria include clamping voltage at 16 A (≤12 V), low leakage (<0.1 μA at 5 V), 130 pF capacitance at 0 V, AEC-Q101 qualification status, and SOD-523 footprint compatibility with space-constrained PCB layouts.
Technical Context
The VESD05A1-02VHG3-08 operates in bidirectional asymmetrical (BiAs) mode: reverse clamping initiates above 6 V breakdown (VBR = 6–7.5 V), while forward clamping limits negative transients near ground via VF ≤ 4.5 V at 16 A. Its 130–150 pF capacitance at 0 V and 76 pF at 2.5 V enables use on 480 Mbps USB 2.0 lines without signal integrity degradation.
Designed for transient suppression per IEC 61000-4-2 and IEC 61000-4-5, it delivers 192 W peak pulse power (PPP) at 8/20 μs, with MSL level 1 moisture sensitivity and peak reflow tolerance up to 260 °C - supporting automated optical inspection (AOI) due to e3 Sn-plated lead frame sidewalls.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | ±30 kV contact & air discharge (IEC 61000-4-2) - meets automotive and industrial ESD immunity requirements without external shielding |
| Clamping Voltage | ≤12 V at 16 A (8/20 μs) - limits downstream IC stress during lightning-induced surges |
| Capacitance | 130 pF at 0 V / 76 pF at 2.5 V (1 MHz) - preserves signal rise time on USB 2.0 and I²C buses |
| Leakage Current | <0.1 μA at VR = 5 V - avoids battery drain in always-on portable electronics |
| Package | SOD-523 (1.3 × 0.85 × 0.7 mm) - fits 0402-footprint PCB real estate with <0.7 mm height for thin-profile designs |
| Operating Temp | −55 °C to +150 °C - supports under-hood automotive and industrial control unit deployment |
Pinout & Package
SOD-523 surface-mount package: 2-terminal device with cathode marking bar; total weight 1.32 mg; UL 94 V-0 molding compound; MSL level 1 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground connection | Reference node for bidirectional clamping; must be connected to low-impedance system ground plane |
| Pin 2 | Protected signal line (L1) | Input/output data line terminal - connects directly to USB D+, HDMI TMDS, or I²C SDA/SCL traces |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Asymmetrical (BiAs) Clamping | Separate 6–7.5 V reverse breakdown and sub-1 V forward conduction enables tighter clamping on negative transients near ground |
| AEC-Q101 Qualified Variant | HG3-08 suffix denotes automotive-grade qualification - validated for temperature cycling, HTRB, and ESD robustness per AEC standard |
| e3 Sn Plating | Tin-plated exposed side walls enable AOI-based solder joint verification without X-ray inspection |
| Low Profile Height | <0.7 mm max height - allows placement beneath connectors or in stacked-board assemblies |
Applications
| USB 2.0 Interface Protection | HDMI TMDS Line Protection |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines in portable medical monitors against ESD events during cable insertion. IC Role / Device Role / Timing Role: Single-line ESD suppressor placed immediately before USB connector, operating in BiAs mode to clamp both polarities. Use Value: 130 pF capacitance preserves 480 Mbps data rate; ≤12 V clamping at 16 A prevents PHY damage during IEC 61000-4-2 contact discharge. |
Use Scenario: Safeguarding HDMI TMDS clock and data channels in automotive infotainment head units exposed to cabin ESD. IC Role / Device Role / Timing Role: Per-channel ESD clamp on each TMDS pair, leveraging low 76 pF capacitance at 2.5 V bias to minimize skew. Use Value: AEC-Q101 qualification ensures reliability across −40 °C to +105 °C ambient; 150 °C junction rating supports under-dash mounting. |
| I²C Bus Protection | Automotive Sensor Interface |
Use Scenario: Shielding I²C SDA/SCL lines connecting MCU to EEPROM or temperature sensor in smart home hubs. IC Role / Device Role / Timing Role: Two discrete VESD05A1-02VHG3-08 devices - one per line - placed at bus origin to limit capacitive loading. Use Value: <0.1 μA leakage prevents bus pull-up current errors; 130 pF capacitance stays within I²C fast-mode (400 kHz) timing budget. |
Use Scenario: Protecting LIN bus or analog sensor inputs (e.g., pressure, oxygen) in engine control modules. IC Role / Device Role / Timing Role: Signal-line protector on sensor output path, referenced to chassis ground with minimal trace inductance. Use Value: −55 °C to +150 °C operation matches under-hood thermal profile; 16 A surge rating handles load dump transients coupled onto sensor harnesses. |
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 | Lower capacitance (12 pF at 0 V), higher VBR (min 6.5 V), same SOD-523 package | Better suited for >1 Gbps interfaces (e.g., USB 3.0 SS); less ideal for 5 V logic due to higher clamping | Select when ultra-low capacitance is critical and system VCC allows ≥6.5 V standoff |
| LITTELFUSE SP1003-01UTG | Unidirectional configuration, 5.5 V VRWM, 12 pF capacitance, SOD-523 | Requires separate ground-referenced path for negative transients; not BiAs - needs complementary diode for full protection | Choose only if design already implements dual-diode topology or uses unidirectional I/O buffers |
Compared with RCLAMP0524P.TCT and SP1003-01UTG, the VESD05A1-02VHG3-08 provides integrated bidirectional asymmetrical clamping at 5 V working range with balanced trade-offs in capacitance (130 pF), leakage (<0.1 μA), and automotive qualification - making it optimal for cost-sensitive, space-constrained 5 V data interfaces requiring single-device protection.
Availability
VESD05A1-02VHG3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive sensor interface hardening, and I²C bus safeguarding requiring stable component supply across production lifecycles.
Supply support for VESD05A1-02VHG3-08 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 power management, sensing, and circuit protection components with vertical manufacturing control.
The VESD05A1-02VHG3-08 belongs to Vishay's BiAs ESD protection diode family, engineered specifically for high-density, high-reliability data line protection in automotive, industrial, and consumer electronics where compact size and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of the VESD05A1-02VHG3-08 under full IEC 61000-4-5 surge conditions?
The VESD05A1-02VHG3-08 exhibits a maximum reverse clamping voltage (VC) of 12 V when subjected to a 16 A, 8/20 μs peak pulse current per IEC 61000-4-5. This value is measured at the device terminals under standardized test conditions and ensures protected ICs experience limited overvoltage stress during surge events. The VESD05A1-02VHG3-08 maintains this clamping performance across its full operating temperature range.
Is the VESD05A1-02VHG3-08 qualified for automotive applications?
Yes, the HG3-08 suffix confirms that the VESD05A1-02VHG3-08 is AEC-Q101 qualified. It has passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD robustness validation per the AEC-Q101 standard. This makes the VESD05A1-02VHG3-08 suitable for use in automotive infotainment, body control modules, and sensor interfaces where reliability under harsh environmental conditions is required.
How does the BiAs (bidirectional asymmetrical) operation of the VESD05A1-02VHG3-08 improve ESD protection compared to symmetrical diodes?
The BiAs architecture of the VESD05A1-02VHG3-08 provides distinct clamping thresholds: reverse conduction begins at ~6–7.5 V, while forward conduction clamps negative transients near 0.88–4.5 V depending on current. This asymmetry minimizes voltage overshoot on negative ESD events, reducing risk of latch-up in CMOS receivers. Unlike symmetrical diodes, the VESD05A1-02VHG3-08 achieves tighter ground-referenced clamping without requiring external bias networks.
What is the capacitance of the VESD05A1-02VHG3-08 at typical operating bias, and why does it matter?
The VESD05A1-02VHG3-08 has a capacitance of 76 pF at 2.5 V reverse bias and 130 pF at 0 V, measured at 1 MHz. This voltage-dependent capacitance is critical for high-speed interfaces: at typical 3.3 V or 5 V I/O bias, the effective capacitance remains low enough to avoid signal distortion on USB 2.0 (480 Mbps) and I²C (400 kHz) lines. Exceeding 150 pF would degrade edge rates and increase bit error rates - the VESD05A1-02VHG3-08 stays safely within that limit.
Can the VESD05A1-02VHG3-08 be used in space-constrained wearable electronics?
Yes - the VESD05A1-02VHG3-08 uses the SOD-523 package (1.3 × 0.85 × 0.7 mm), occupying less board area than 0402 passives and enabling placement directly adjacent to connectors or under shields. Its <0.7 mm height supports ultra-thin form factors, and the e3 Sn plating allows AOI-based solder inspection without X-ray, simplifying assembly validation in high-mix wearable production. The VESD05A1-02VHG3-08 is routinely deployed in hearables and medical wearables requiring certified ESD resilience.
VESD05A1-02VHG3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- SC-79, SOD-523
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 12V
- Current - Peak Pulse (10/1000µs):
- 16A (8/20µs)
- Power - Peak Pulse:
- 192W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 130pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
VESD05A1-02VHG3-08 FAQ
1.How can I place an order for VESD05A1-02VHG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VESD05A1-02VHG3-08 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 VESD05A1-02VHG3-08 reliable?
The price and inventory of VESD05A1-02VHG3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VESD05A1-02VHG3-08 is usually 5 days.
3.What payment methods are accepted for VESD05A1-02VHG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VESD05A1-02VHG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VESD05A1-02VHG3-08?
VESD05A1-02VHG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VESD05A1-02VHG3-08 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 VESD05A1-02VHG3-08?
For technical support, including VESD05A1-02VHG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VESD05A1-02VHG3-08 requirements.
6.How does Aetrix verify that VESD05A1-02VHG3-08 is sourced from the original manufacturer or authorized distributors?
All VESD05A1-02VHG3-08 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 VESD05A1-02VHG3-08 meets industry standards.
7.What is the process for return or replacement of VESD05A1-02VHG3-08?
All VESD05A1-02VHG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VESD05A1-02VHG3-08, 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 VESD05A1-02VHG3-08 part is unused and in its original packaging.
Return procedure for VESD05A1-02VHG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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