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Vishay General Semiconductor - Diodes Division GSOT03C-HG3-08
- Part No.:
- GSOT03C-HG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
GSOT03C-HG3-08.pdf
- Description:
- TVS DIODE 3.3VWM 12.3VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:30,950
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Product details
Overview
GSOT03C-HG3-08 from Vishay Semiconductors is a two-line bidirectional asymmetrical ESD protection diode in SOT-23 package, rated for ±30 kV IEC 61000-4-2 contact/air discharge, 3.3 V reverse stand-off voltage (VRWM), and 30 A peak pulse current (IPPM) per line-to-ground path. It protects high-speed data lines such as USB 2.0 or HDMI interfaces against electrostatic discharge events.
For engineers reviewing the GSOT03C-HG3-08 datasheet, GSOT03C-HG3-08 pinout, GSOT03C-HG3-08 application, or GSOT03C-HG3-08 equivalent, this page delivers verified electrical specs, BiAs-mode clamping behavior, SOT-23 terminal mapping, automotive-grade AEC-Q101 qualification status, and direct alternative part guidance for EOL transition planning before January 2025.
Technical Context
The GSOT03C-HG3-08 implements BiAs-MODE (Bidirectional Asymmetrical) protection: pin 3 is grounded while pins 1 and 2 protect two independent signal lines, each with distinct forward (VF ≈ 1.0–1.2 V) and reverse (VBR = 4.0–5.5 V) clamping thresholds. This enables low-voltage rail-to-rail transient suppression without DC bias constraints.
It supports dual configuration modes - two-line BiAs (pin 3 grounded) or single-line BiSy (pin 3 floating, pins 1–2 across one line) - with validated clamping voltages of 5.7 V (at 1 A) and 10.0 V (at 30 A) in line-to-ground operation, and capacitance of 420–600 pF at 0 V bias for signal integrity trade-off analysis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | ±30 kV contact & air discharge per IEC 61000-4-2 - meets highest industrial and automotive ESD immunity requirements. |
| Reverse Stand-off Voltage (VRWM) | 3.3 V - ensures no leakage or conduction during normal 3.3 V logic-level signal operation. |
| Peak Pulse Current (IPPM) | 30 A per line-to-ground path (IEC 61000-4-5, 8/20 μs) - sustains high-energy surge events without failure. |
| Clamping Voltage (VC) | 10.0 V max at 30 A IPPM - limits transient overvoltage to safe levels for downstream 3.3 V ICs. |
| Capacitance (CD) | 420–600 pF at 0 V, 1 MHz - impacts high-speed signal rise time; suitable for ≤100 Mbps interfaces. |
| AEC-Q101 Qualified | Yes - qualified for automotive underhood and infotainment applications requiring reliability validation. |
| Package | SOT-23 - industry-standard 3-pin surface-mount footprint compatible with automated assembly and space-constrained PCB layouts. |
Pinout & Package
SOT-23 package: 3-pin, gull-wing leaded, e3 Sn-plated, MSL Level 1, 8.8 mg weight, UL 94 V-0 molding compound, 260 °C max soldering peak temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Line 1 Anode/Cathode (BiAs) | Connects to first protected signal line (L1); forms one half of asymmetrical clamp to ground (pin 3). |
| Pin 2 | Line 2 Anode/Cathode (BiAs) | Connects to second protected signal line (L2); forms second half of asymmetrical clamp to ground (pin 3). |
| Pin 3 | Ground Reference Terminal | Mandatory ground connection for BiAs mode; left unconnected only when used in BiSy single-line mode (pins 1–2 only). |
Key Features
| Feature | Design Value |
|---|---|
| Two-line ESD protection | Simultaneously safeguards two independent data lines (e.g., USB D+/D−) with shared ground reference - reduces component count vs. discrete diodes. |
| Bidirectional Asymmetrical (BiAs) clamping | Enables low forward-voltage clamping (~1.0 V) for negative transients and controlled reverse breakdown (~4.6 V typ.) for positive transients - preserves signal swing integrity. |
| High surge robustness | 369 W peak pulse power (line-to-ground) and 504 W (line-to-line) - withstands repeated ESD strikes without parametric shift. |
| Low leakage current | ≤100 μA at VR = 3.3 V - prevents signal distortion or loading on low-power 3.3 V buses. |
| AEC-Q101 qualified & RoHS-compliant | Validated for automotive use; green packaging (HG3 suffix) confirms lead-free, halogen-free compliance per Vishay environmental standards. |
Applications
| USB 2.0 Interface Protection | HDMI Data Lane Protection |
|---|---|
Use Scenario: Protecting D+ and D− differential pair in portable USB host/device ports against user-handling ESD events. IC Role / Device Role / Timing Role: Two-line transient voltage suppressor placed immediately at connector entry point, before USB PHY IC. Use Value: Maintains 480 Mbps signaling integrity by limiting clamping voltage to ≤10 V while delivering ±30 kV ESD immunity. |
Use Scenario: Safeguarding TMDS clock and data channels in consumer AV equipment exposed to frequent cable hot-plug ESD. IC Role / Device Role / Timing Role: Bidirectional asymmetrical clamp on each TMDS pair, referenced to chassis ground. Use Value: Prevents HDMI receiver latch-up via sub-10 V clamping at 30 A surge, with 420–600 pF capacitance compatible with 165 MHz pixel clocks. |
| Automotive Infotainment Display Link | Industrial RS-485 Transceiver Port |
Use Scenario: Shielding MIPI D-PHY or FPD-Link III lanes between head unit and display in vehicles subjected to ISO 10605 ESD stress. IC Role / Device Role / Timing Role: AEC-Q101-qualified ESD protector mounted at board edge, before serializer/deserializer IC. Use Value: Ensures functional safety compliance with ≤10 V clamping and -55 °C to +150 °C operating range across vehicle lifetime. |
Use Scenario: Hardening RS-485 driver/receiver nodes in factory automation systems where long cables induce lightning-induced surges. IC Role / Device Role / Timing Role: Line-to-ground transient suppressor on A/B bus lines, leveraging 30 A IPPM rating for IEC 61000-4-5 Level 4 immunity. Use Value: Delivers 369 W surge power handling without derating, enabling reliable 10 Mbps communication in noisy industrial environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VGSOT03C | Successor device in same SOT-23 package; identical VRWM (3.3 V), VBR (4.0–5.5 V), and ESD rating (±30 kV), but updated process for improved consistency and extended lifecycle beyond Jan 2025. | Drop-in replacement for new designs; requires no layout change; supports same BiAs/BiSy configurations. | Select VGSOT03C for production ramp after GSOT03C-HG3-08 EOL date (Jan 2025); verify latest revision per Vishay doc 85824 Rev. 3.0. |
| TPD2E001DRYR | TI two-channel ESD protector in SOT-5X3; lower capacitance (10 pF typical), higher VRWM (5 V), but lower IPPM (4 A) and no AEC-Q101 qualification. | Better suited for high-speed (>480 Mbps) or 5 V logic interfaces; not recommended for automotive or high-surge industrial use. | Choose TPD2E001DRYR only for cost-sensitive, non-automotive USB 2.0 applications where ultra-low capacitance outweighs surge robustness needs. |
Compared with VGSOT03C, GSOT03C-HG3-08 offers identical electrical performance but reaches end-of-life in January 2025; compared with TPD2E001DRYR, it provides 7.5× higher surge current capability and automotive qualification at the expense of higher capacitance - critical for ruggedized system design.
Availability
GSOT03C-HG3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment display links, and industrial RS-485 transceiver ports requiring stable component supply through its scheduled EOL window.
Supply support for GSOT03C-HG3-08 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 protection devices engineered for automotive, industrial, and computing applications.
The GSOTxxC family was designed specifically for compact, high-efficiency ESD protection of high-speed data lines in space-constrained and mission-critical systems - balancing clamping performance, leakage, and package scalability across voltage grades.
FAQ
What is the exact pin configuration and grounding requirement for GSOT03C-HG3-08 in two-line protection mode?
The GSOT03C-HG3-08 uses pins 1 and 2 for the two protected signal lines (L1 and L2), and pin 3 must be connected directly to system ground to enable BiAs-MODE operation. This configuration provides independent asymmetrical clamping for each line relative to ground, with verified 30 A IPPM per path and ±30 kV ESD immunity. Floating pin 3 disables two-line operation.
Does GSOT03C-HG3-08 meet AEC-Q101 qualification, and what does the 'HG3' suffix indicate?
Yes, GSOT03C-HG3-08 is AEC-Q101 qualified for automotive applications. The 'HG3' suffix denotes Vishay's green packaging standard: lead-free, halogen-free, and RoHS-compliant construction with Sn plating, conforming to environmental specification C1G (green molding compound) and MSL Level 1 handling requirements.
What is the maximum clamping voltage of GSOT03C-HG3-08 under full-rated surge conditions?
At its maximum rated peak pulse current of 30 A (IEC 61000-4-5, 8/20 μs waveform), the GSOT03C-HG3-08 exhibits a maximum reverse clamping voltage (VC) of 12.3 V per line-to-ground path. This value ensures safe operation for 3.3 V logic interfaces, with margin below typical 13.2 V absolute maximum ratings of USB PHY ICs.
Can GSOT03C-HG3-08 be used for single-line bidirectional protection, and how does its performance differ?
Yes - by leaving pin 3 unconnected and using pins 1 and 2 across one signal line (BiSy-MODE), GSOT03C-HG3-08 functions as a symmetrical clamp with VRWM = 3.8 V and VC = 14.0 V at 30 A. This configuration doubles effective capacitance (210–300 pF) and increases clamping voltage versus BiAs mode, trading speed for simplified routing in single-line applications.
What is the official end-of-life timeline for GSOT03C-HG3-08, and what is the recommended migration path?
Vishay has declared end-of-life for the GSOT03C-HG3-08 in January 2025, as documented in revision 3.0 of datasheet 85824 dated 13-Feb-2025. The officially recommended alternative is VGSOT03C - a functionally identical, pin-compatible successor with extended availability and updated manufacturing process, requiring no PCB or firmware changes for migration.
GSOT03C-HG3-08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 4V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 30A (8/20µs)
- Power - Peak Pulse:
- 369W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 420pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
GSOT03C-HG3-08 FAQ
1.How can I place an order for GSOT03C-HG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT03C-HG3-08 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 GSOT03C-HG3-08 reliable?
The price and inventory of GSOT03C-HG3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GSOT03C-HG3-08 is usually 5 days.
3.What payment methods are accepted for GSOT03C-HG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT03C-HG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT03C-HG3-08?
GSOT03C-HG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT03C-HG3-08 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 GSOT03C-HG3-08?
For technical support, including GSOT03C-HG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT03C-HG3-08 requirements.
6.How does Aetrix verify that GSOT03C-HG3-08 is sourced from the original manufacturer or authorized distributors?
All GSOT03C-HG3-08 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 GSOT03C-HG3-08 meets industry standards.
7.What is the process for return or replacement of GSOT03C-HG3-08?
All GSOT03C-HG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT03C-HG3-08, 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 GSOT03C-HG3-08 part is unused and in its original packaging.
Return procedure for GSOT03C-HG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT03C-HG3-08 Tags
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