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Vishay General Semiconductor - Diodes Division VESD05A1B-02V-GS08
- Part No.:
- VESD05A1B-02V-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
VESD05A1B-02V-GS08.pdf
- Description:
- TVS DIODE 5VWM 11VC SOD523
- Quantity:
- Payment:
- Shipping:
Inventory:9,662
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Product details
Overview
VESD05A1B-02V-GS08 from Vishay Semiconductors is a single-line bidirectional asymmetrical (BiAs) ESD protection diode in SOD-523 package, rated for 5 V reverse working voltage (VRWM), 6.8 V typical breakdown voltage (VBR), and clamps ±20 kV contact / ±30 kV air ESD transients per IEC 61000-4-2; used to protect high-speed data lines such as USB 2.0 or HDMI interfaces.
For engineers reviewing the VESD05A1B-02V-GS08 datasheet, VESD05A1B-02V-GS08 pinout, VESD05A1B-02V-GS08 application, or VESD05A1B-02V-GS08 equivalent, key selection criteria include its 12 pF capacitance at 2.5 V, <0.1 µA leakage at 5 V, 8.9 V clamping at 3 A peak pulse, BiAs-mode asymmetric clamping behavior, and MSL level 1 solderability.
Technical Context
The VESD05A1B-02V-GS08 operates in bidirectional asymmetrical (BiAs) mode between pin 1 (ground) and pin 2 (signal line), delivering distinct forward and reverse clamping: ~0.95 V forward clamping at 0.2 A and ~8 V reverse clamping at 1 A. Its low 12 pF capacitance at 2.5 V supports signal integrity on 480 Mbps USB 2.0 lines.
It meets IEC 61000-4-2 (±20 kV contact / ±30 kV air) and IEC 61000-4-5 (3 A, 8/20 µs) surge immunity standards, with absolute maximum ratings including 33 W peak pulse power and -40 °C to +125 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 5 V - Maximum continuous reverse voltage before leakage exceeds 1 µA; sets safe operating window for 3.3 V/5 V data lines. |
| VBR (typ) | 6.8 V - Reverse breakdown threshold at 1 mA; defines onset of conduction during positive transients. |
| VC @ 3 A | 8.9 V - Reverse clamping voltage under full 3 A IEC 61000-4-5 surge; limits stress on protected IC I/O. |
| VF @ 0.2 A | 0.95 V - Forward clamping voltage during negative transients; holds signal near ground, minimizing undershoot. |
| CD @ 2.5 V | 12 pF - Capacitance at bias; enables use on USB 2.0 (480 Mbps) without significant signal degradation. |
| IR @ 5 V | <0.1 µA - Reverse leakage current; ensures minimal DC loading and power loss on idle signal lines. |
| ESD Rating | ±20 kV contact / ±30 kV air - Complies with IEC 61000-4-2 Level 4; qualifies for industrial and consumer port-level protection. |
Pinout & Package
SOD-523 surface-mount package: 1.3 mm × 0.9 mm × 0.7 mm body, 0.35 mm pin pitch, cathode bar marking on pin 1 side, MSL level 1, compatible with standard reflow profiles (260 °C/10 s).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Cathode (ground terminal) | Connected to system ground; serves as return path for both positive and negative ESD currents. |
| Pin 2 | Anode (signal/data line terminal) | Connected to protected line (e.g., USB D+); conducts transient energy to ground when voltage exceeds VBR or VF thresholds. |
Key Features
| Feature | Design Value |
|---|---|
| BiAs-mode clamping | Asymmetric response: ~0.95 V forward clamp vs. ~8 V reverse clamp - minimizes undershoot on negative transients while limiting overvoltage on positives. |
| Low 12 pF capacitance | Measured at VR = 2.5 V, 1 MHz - preserves signal rise/fall times on high-speed interfaces up to 480 Mbps. |
| e3 matte tin termination | Sn plating per J-STD-002 - ensures reliable solder wetting and compatibility with lead-free assembly processes. |
| IEC 61000-4-5 compliance | 3 A, 8/20 µs surge rating - provides secondary protection against lightning-induced surges and system-level transients. |
Applications
| USB 2.0 Interface Protection | HDMI Data Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of a USB 2.0 host or peripheral port against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Signal-line transient suppressor placed directly at connector, shunting ESD energy to ground before it reaches PHY or controller. Use Value: 12 pF capacitance avoids signal integrity degradation at 480 Mbps; ±20 kV contact rating meets IEC 61000-4-2 Level 4 requirements. | Use Scenario: Safeguarding TMDS data channels (TMDS0/1/2) in HDMI 1.4 source or sink devices exposed to user-handling ESD. IC Role / Device Role / Timing Role: Low-capacitance clamping diode mounted adjacent to HDMI connector, providing first-line defense against air/contact discharge. Use Value: Asymmetric BiAs clamping maintains tight common-mode control; 8.9 V VC at 3 A prevents latch-up in HDMI transmitter/receiver I/O cells. |
| Industrial Sensor Interface | Automotive Infotainment USB Port |
Use Scenario: Shielding analog or digital sensor outputs (e.g., I²C clock/data lines) in factory automation equipment from maintenance-handling ESD. IC Role / Device Role / Timing Role: Point-of-entry protection device on PCB edge connectors or cable interface points. Use Value: -40 °C to +125 °C operating range supports extended industrial temperature environments; <0.1 µA leakage avoids sensor bias drift. | Use Scenario: Hardening front-panel USB ports in automotive head units against ESD during vehicle service or user interaction. IC Role / Device Role / Timing Role: Secondary ESD suppressor downstream of TVS array, fine-tuning clamping for sensitive USB PHY circuitry. Use Value: SOD-523 footprint enables compact layout near connector; RoHS/WEEE compliance meets automotive supply chain requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP4105MR6T1G | Quad-channel, 5.5 V VRWM, 15 pF @ 0 V, ±30 kV air discharge | Protects four lines simultaneously; higher capacitance limits use to ≤100 Mbps interfaces | Select when multi-line protection is needed and board space permits larger SOT-563 package |
| STMicroelectronics USBLC6-2SC6 | Single-channel, 5.5 V VRWM, 13 pF @ 0 V, ±15 kV contact discharge | Lower ESD rating (±15 kV vs. ±20 kV); optimized for USB 2.0 but less robust for industrial handling | Choose where cost sensitivity outweighs need for highest IEC 61000-4-2 Level 4 margin |
Compared with NUP4105MR6T1G and USBLC6-2SC6, the VESD05A1B-02V-GS08 delivers superior single-line ESD robustness (±20 kV contact), lower capacitance at operating bias (12 pF @ 2.5 V), and tighter clamping (8.9 V @ 3 A), making it optimal for space-constrained, high-reliability USB/HDMI endpoint protection.
Availability
VESD05A1B-02V-GS08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI TMDS line hardening, and industrial sensor I/O safeguarding requiring stable component supply and long-term production continuity.
Supply support for VESD05A1B-02V-GS08 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, precision, and application-specific performance across industrial, automotive, and computing markets.
The VESD05A1B-02V-GS08 belongs to Vishay's BiAs-series ESD protection portfolio, engineered specifically for high-speed data line protection where asymmetric clamping and ultra-low capacitance are critical to signal fidelity and system-level ESD compliance.
FAQ
What is the clamping voltage of the VESD05A1B-02V-GS08 at 3 A peak pulse current?
The VESD05A1B-02V-GS08 exhibits a reverse clamping voltage (VC) of 8.9 V maximum at 3 A peak pulse current (IPPM), per IEC 61000-4-5 8/20 µs waveform. This value ensures protected ICs experience limited overvoltage stress during surge events. The VESD05A1B-02V-GS08 achieves this with low dynamic impedance and optimized silicon structure, verified in Vishay's characterization lab per Document Number 83368.
Does the VESD05A1B-02V-GS08 support bidirectional ESD protection?
Yes, the VESD05A1B-02V-GS08 provides bidirectional asymmetrical (BiAs) protection: it clamps positive transients above ~6.8 V (reverse breakdown) and negative transients near 0.95 V (forward conduction). This dual-mode behavior is intrinsic to its internal diode architecture and explicitly defined in the "BiAs-MODE" section of the VESD05A1B-02V-GS08 datasheet.
What is the maximum operating temperature range for the VESD05A1B-02V-GS08?
The VESD05A1B-02V-GS08 has a specified junction temperature range of -40 °C to +125 °C, validated per absolute maximum ratings in Document Number 83368. This range supports deployment in extended industrial and automotive cabin environments. Derating is not required within this span, and the VESD05A1B-02V-GS08 maintains full ESD performance across the entire range.
Is the VESD05A1B-02V-GS08 RoHS compliant and lead-free?
Yes, the VESD05A1B-02V-GS08 is RoHS-compliant per Directive 2011/65/EU and features e3 matte tin (Sn) termination, confirming lead-free finish. It also complies with WEEE 2002/96/EC and carries UL 94 V-0 flammability rating. These attributes are documented in the "PACKAGE DATA" and "FEATURES" sections of the official VESD05A1B-02V-GS08 datasheet.
What package type does the VESD05A1B-02V-GS08 use, and what are its key mechanical dimensions?
The VESD05A1B-02V-GS08 uses the SOD-523 package: 1.3 mm × 0.9 mm × 0.7 mm body size, 0.35 mm pin pitch, and 1.4 mg unit weight. Footprint recommendations and exact millimeter tolerances are provided in Figure 1 of Document Number 83368. This ultra-small outline supports high-density PCB layouts typical in portable and space-constrained electronics using the VESD05A1B-02V-GS08.
VESD05A1B-02V-GS08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- SC-79, SOD-523
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 11V
- Current - Peak Pulse (10/1000µs):
- 3A (8/20µs)
- Power - Peak Pulse:
- 33W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 19pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
VESD05A1B-02V-GS08 FAQ
1.How can I place an order for VESD05A1B-02V-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VESD05A1B-02V-GS08 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 VESD05A1B-02V-GS08 reliable?
The price and inventory of VESD05A1B-02V-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VESD05A1B-02V-GS08 is usually 5 days.
3.What payment methods are accepted for VESD05A1B-02V-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VESD05A1B-02V-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VESD05A1B-02V-GS08?
VESD05A1B-02V-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VESD05A1B-02V-GS08 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 VESD05A1B-02V-GS08?
For technical support, including VESD05A1B-02V-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VESD05A1B-02V-GS08 requirements.
6.How does Aetrix verify that VESD05A1B-02V-GS08 is sourced from the original manufacturer or authorized distributors?
All VESD05A1B-02V-GS08 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 VESD05A1B-02V-GS08 meets industry standards.
7.What is the process for return or replacement of VESD05A1B-02V-GS08?
All VESD05A1B-02V-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VESD05A1B-02V-GS08, 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 VESD05A1B-02V-GS08 part is unused and in its original packaging.
Return procedure for VESD05A1B-02V-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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