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Vishay General Semiconductor - Diodes Division VESD05A2-03F-GS08
- Part No.:
- VESD05A2-03F-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- SC-89, SOT-490
- Datasheet:
-
VESD05A2-03F-GS08.pdf
- Description:
- TVS DIODE 5VWM 11VC SOT490
- Quantity:
- Payment:
- Shipping:
Inventory:6,037
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Product details
Overview
VESD05A2-03F-GS08 from Vishay Semiconductors is a two-line asymmetrical (BiAs) and single-line symmetrical (BiSy) ESD protection diode in SOT490 package, rated for ±30 kV air/±20 kV contact ESD per IEC 61000-4-2, with 5 V reverse stand-off voltage, 8.9–11 V clamping at 3 A, and 20–23 pF capacitance in BiAs mode - deployed on USB 2.0 data lines, HDMI interfaces, and portable device keypads.
For engineers reviewing the VESD05A2-03F-GS08 datasheet, VESD05A2-03F-GS08 pinout, VESD05A2-03F-GS08 application, or VESD05A2-03F-GS08 equivalent, key selection criteria include BiAs/BiSy dual-mode operation, low 0.1 µA leakage at VRWM, sub-12 V clamping under 3 A IEC 61000-4-5 surge, 2.5 mg weight, and RoHS-compliant lead-free construction.
Technical Context
The VESD05A2-03F-GS08 supports two distinct ESD protection configurations: BiAs mode clamps both L1 and L2 signal lines to ground with asymmetric forward/reverse clamping (6.0–7.5 V breakdown, 8.9–11 V VC), while BiSy mode uses only L1 with symmetrical ±100 V ESD clamping and halved capacitance (10–12 pF). Pin 3 must be left unconnected in BiSy mode.
Its SOT490 package enables high-density placement on compact PCBs, with UL 94 V-0 molding compound, 260 °C/10 s soldering tolerance, and operation across –40 °C to +125 °C junction temperature - optimized for transient suppression in high-speed digital interfaces where low capacitance and precise clamping are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating (Air) | ±30 kV per IEC 61000-4-2 - withstands extreme electrostatic discharge events in handling and end-use environments |
| ESD Rating (Contact) | ±20 kV per IEC 61000-4-2 - robust protection against direct human-body contact discharge |
| Reverse Stand-Off Voltage (BiAs) | 5 V - ensures no conduction during normal 3.3 V or 5 V signal operation |
| Clamping Voltage (BiAs, 3 A) | 8.9–11 V - limits transient voltage to safe levels for downstream 5 V-tolerant ICs |
| Capacitance (BiAs, 0 V, 1 MHz) | 20–23 pF - preserves signal integrity on USB 2.0 and other <480 Mbps interfaces |
| Leakage Current (at VRWM) | ≤0.1 µA - prevents DC loading or battery drain in always-on portable circuits |
| Operating Temperature | –40 °C to +125 °C - supports automotive infotainment and industrial control deployments |
Pinout & Package
SOT490 (plastic, lead-free, non-magnetic) package measuring 2.1 mm × 1.3 mm × 0.9 mm (0.083" × 0.051" × 0.035"), UL 94 V-0 rated, 2.5 mg weight, compatible with standard 8 mm tape handling (GS08 = 3 k/reel).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (L1) | Signal Line 1 Input | Primary protected line in both BiAs and BiSy modes; connected to data line (e.g., USB D+) |
| Pin 2 (GND) | Ground Reference | Common return path for ESD current dissipation; must be low-inductance connection to system ground |
| Pin 3 (L2) | Signal Line 2 Input | Second protected line in BiAs mode only; left floating in BiSy mode to enable symmetrical clamping on L1 |
Key Features
| Feature | Design Value |
|---|---|
| Dual-mode ESD protection | Configurable as BiAs (two-line asymmetric) or BiSy (one-line symmetric) via Pin 3 connection state |
| Low clamping overshoot | +79 V / –72 V at ±8 kV ESD pulse - minimizes voltage excursion during fast transients |
| Ultra-low leakage | ≤0.1 µA at VRWM - avoids signal distortion or power loss in battery-powered systems |
| High-temperature reliability | Rated for 125 °C junction operation - suitable for under-hood automotive and enclosed industrial modules |
| RoHS-compliant packaging | Lead-free, non-magnetic SOT490 with UL 94 V-0 flammability rating - meets global environmental compliance mandates |
Applications
| USB 2.0 Interface Protection | HDMI Data Lane Protection |
|---|---|
Use Scenario: Protecting differential D+ and D– lines in portable USB peripherals against ESD during cable insertion and user handling. IC Role / Device Role / Timing Role: Bidirectional asymmetrical (BiAs) clamping device shunting ESD energy from both signal lines to ground. Use Value: 20–23 pF capacitance avoids signal degradation at 480 Mbps; ±30 kV air discharge rating exceeds IEC 61000-4-2 Level 4 requirements. | Use Scenario: Safeguarding TMDS clock and data channels in HDMI source devices (e.g., set-top boxes, media players) exposed to frequent hot-plug events. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp placed immediately before HDMI connector to minimize stub length and preserve edge integrity. Use Value: Sub-12 V clamping at 3 A ensures downstream HDMI receiver ICs remain within absolute maximum ratings during surge events. |
| Smartphone Keypad ESD Guard | Industrial Sensor Interface Protection |
Use Scenario: Shielding mechanical keypad scan lines in smartphones and wearables from finger-contact ESD in humid or dry environments. IC Role / Device Role / Timing Role: Single-line symmetrical (BiSy) protector on each key line, with Pin 3 unconnected and 10–12 pF capacitance. Use Value: Halved capacitance vs. BiAs mode reduces crosstalk risk in dense keypad matrices; ±20 kV contact rating covers real-world usage stress. | Use Scenario: Protecting analog sensor outputs (e.g., 4–20 mA loop sensors, thermocouple amplifiers) in factory automation panels subject to maintenance personnel ESD. IC Role / Device Role / Timing Role: Asymmetric clamping device on signal line referenced to local ground, operating at –40 °C to +125 °C ambient. Use Value: 125 °C max junction temperature enables use behind metal enclosures without derating; 0.1 µA leakage prevents offset errors in precision analog paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD2E001DRYR | Single-channel, 5.5 V VRWM, 12 pF, ±8 kV contact rating (IEC 61000-4-2) | Limited to one line; no BiAs/BiSy configurability; lower ESD rating than VESD05A2-03F-GS08 | Preferred for space-constrained single-line designs where ±8 kV suffices and dual-mode flexibility is unnecessary |
| ESD5Z5.0T1G | Single-line, 5.0 V VRWM, 30 pF, ±30 kV air/±25 kV contact rating, SOD-523 package | Higher capacitance limits use to low-speed lines; smaller package but no BiAs capability | Used when board area is critical and BiAs functionality is not required; higher contact ESD rating offers margin in harsher environments |
Compared with TPD2E001DRYR and ESD5Z5.0T1G, the VESD05A2-03F-GS08 uniquely delivers field-selectable BiAs/BiSy operation in a standardized SOT490 footprint, enabling one BOM item to serve both dual-line and single-line protection needs while maintaining superior ±20 kV contact ESD immunity and low-leakage performance.
Availability
VESD05A2-03F-GS08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI data lane safeguarding, and smartphone keypad ESD guarding requiring stable component supply and consistent RoHS-compliant sourcing.
Supply support for VESD05A2-03F-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 is a global leader in discrete semiconductors, specializing in diodes, MOSFETs, optoelectronics, and protection devices with emphasis on reliability, precision, and application-specific optimization.
The VESD05A2-03F-GS08 belongs to Vishay's BiAs/BiSy ESD protection diode family, engineered for high-speed digital interface protection where dual-mode flexibility, low capacitance, and certified IEC 61000-4-2 immunity are mandatory.
FAQ
What is the difference between BiAs and BiSy modes in the VESD05A2-03F-GS08?
The VESD05A2-03F-GS08 operates in BiAs (bidirectional asymmetrical) mode when Pins 1, 2, and 3 are all connected - protecting two signal lines (L1 and L2) with different forward/reverse clamping thresholds. In BiSy (bidirectional symmetrical) mode, Pin 3 is left unconnected, enabling single-line (L1-only) protection with matched positive/negative clamping behavior and reduced capacitance (10–12 pF vs. 20–23 pF). This dual-mode capability allows one VESD05A2-03F-GS08 to replace two dedicated single-line protectors in certain layouts.
What is the maximum peak pulse current rating for the VESD05A2-03F-GS08?
The VESD05A2-03F-GS08 is rated for a maximum peak pulse current (IPPM) of 3 A under the 8/20 µs waveform defined in IEC 61000-4-5. This rating applies in both BiAs and BiSy modes and corresponds to a clamping voltage of 8.9–11 V (BiAs) or 10.6–12 V (BiSy) at that current level. The device is not rated for repetitive surges beyond its specified single-pulse capability unless validated per application conditions.
Does the VESD05A2-03F-GS08 meet automotive-grade temperature requirements?
Yes, the VESD05A2-03F-GS08 is qualified for operation from –40 °C to +125 °C junction temperature, meeting extended temperature requirements common in automotive infotainment, body control, and ADAS subsystems. Its SOT490 package and internal construction support reliable performance across this range, though system-level thermal design must ensure actual junction temperature remains within limits under worst-case power dissipation.
How does the capacitance of the VESD05A2-03F-GS08 affect high-speed signal integrity?
The VESD05A2-03F-GS08 offers 20–23 pF capacitance in BiAs mode and 10–12 pF in BiSy mode at 0 V bias and 1 MHz - values carefully optimized for USB 2.0 (480 Mbps) and HDMI TMDS (up to 165 MHz) applications. These low capacitances minimize signal rise-time degradation and reflection-induced jitter, provided layout practices (short traces, controlled impedance, ground plane proximity) are followed. Exceeding these capacitance thresholds risks eye diagram closure in high-speed links.
Is the VESD05A2-03F-GS08 lead-free and RoHS compliant?
Yes, the VESD05A2-03F-GS08 is a lead-free component manufactured in accordance with RoHS Directive 2002/95/EC and WEEE Directive 2002/96/EC. Its SOT490 package uses lead-free terminations and complies with JEDEC J-STD-020 moisture sensitivity level (MSL) requirements. Vishay confirms no ozone-depleting substances are used in its fabrication or packaging, satisfying Montreal Protocol compliance obligations.
VESD05A2-03F-GS08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- SC-89, SOT-490
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Min)
- 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:
- 20pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-490
VESD05A2-03F-GS08 FAQ
1.How can I place an order for VESD05A2-03F-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VESD05A2-03F-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 VESD05A2-03F-GS08 reliable?
The price and inventory of VESD05A2-03F-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VESD05A2-03F-GS08 is usually 5 days.
3.What payment methods are accepted for VESD05A2-03F-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VESD05A2-03F-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VESD05A2-03F-GS08?
VESD05A2-03F-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VESD05A2-03F-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 VESD05A2-03F-GS08?
For technical support, including VESD05A2-03F-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VESD05A2-03F-GS08 requirements.
6.How does Aetrix verify that VESD05A2-03F-GS08 is sourced from the original manufacturer or authorized distributors?
All VESD05A2-03F-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 VESD05A2-03F-GS08 meets industry standards.
7.What is the process for return or replacement of VESD05A2-03F-GS08?
All VESD05A2-03F-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with VESD05A2-03F-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 VESD05A2-03F-GS08 part is unused and in its original packaging.
Return procedure for VESD05A2-03F-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VESD05A2-03F-GS08 Tags
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