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Vishay General Semiconductor - Diodes Division GSOT04-HT3-GS08
- Part No.:
- GSOT04-HT3-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 3-WDFN
- Datasheet:
-
GSOT04-HT3-GS08.pdf
- Description:
- TVS DIODE 4VWM 14.3VC LLP75-3B
- Quantity:
- Payment:
- Shipping:
Inventory:5,955
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Product details
Overview
GSOT04-HT3-GS08 from Vishay Semiconductors is a single-line bidirectional asymmetrical (BiAs) ESD protection diode in LLP75-3B package, rated for ±30 kV IEC 61000-4-2 contact/air discharge, 4 V reverse standoff voltage (VRWM), and 30 A peak pulse current (IPPM), used to safeguard high-speed data lines such as USB 2.0 or HDMI interfaces against transient overvoltage events.
For engineers reviewing the GSOT04-HT3-GS08 datasheet, GSOT04-HT3-GS08 pinout, GSOT04-HT3-GS08 application, or GSOT04-HT3-GS08 equivalent, this device delivers low clamping voltage (11.2–14.3 V at 30 A), sub-450 pF capacitance at 0 V bias, and MSL Level 1 solderability - critical for compact, high-reliability consumer and industrial interface protection designs.
Technical Context
The GSOT04-HT3-GS08 operates in BiAs-mode: pin 1 is ground, pin 3 connects to the protected signal line, and pin 2 serves as internal connection point enabling asymmetrical clamping - forward clamping near 1.2 V (at 1 A), reverse clamping at 11.2–14.3 V (at 30 A). This architecture minimizes interference on low-voltage signaling while maintaining robust ESD immunity.
Its 3-pin LLP75-3B package integrates a monolithic silicon structure with ultra-low parasitic inductance, supporting fast transient response (<1 ns), and features matte tin (e3) lead finish, RoHS/WEEE compliance, and UL 94 V-0 molding compound - optimized for automated SMT assembly and high-moisture environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 4 V - maximum continuous operating voltage before conduction; ensures no leakage during normal 3.3 V or 5 V logic-level signaling. |
| Peak Pulse Current (IPPM) | 30 A - withstands IEC 61000-4-5 8/20 µs surges without failure; enables protection of medium-energy transients in USB or audio paths. |
| Reverse Clamping Voltage (VC) | 11.2–14.3 V at 30 A - limits voltage seen by downstream IC during ESD event; keeps protected IC within safe absolute maximum ratings. |
| Capacitance (CD) | 310–450 pF at 0 V / 200 pF at 2 V - balances ESD robustness and signal integrity; suitable for ≤480 Mbps data rates (e.g., USB 2.0 full-speed). |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds Level 4 immunity requirements for handheld and portable electronics. |
| Operating Temperature | −40 °C to +125 °C - supports automotive infotainment, industrial HMI, and extended-temperature embedded applications. |
Pinout & Package
GSOT04-HT3-GS08 uses the LLP75-3B surface-mount package (1.2 mm × 0.8 mm × 0.5 mm), with exposed thermal pad for enhanced power dissipation and MSL Level 1 handling per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground (GND) | Primary return path for ESD current; must be connected to low-impedance system ground plane. |
| Pin 2 | Internal Node | Not externally accessible; connects internal diode anode/cathode junctions to enable BiAs clamping behavior. |
| Pin 3 | Protected Signal Line (L1) | Input/output terminal for data line (e.g., USB D+, HDMI TMDS+); clamps both positive and negative transients asymmetrically. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Asymmetrical (BiAs) Clamping | Clamps negative transients near 1.2 V (forward) and positive transients to 11.2–14.3 V (reverse), minimizing disruption to low-voltage logic thresholds. |
| Low Capacitance at Bias | 200 pF at 2 V reverse bias - preserves signal edge rate and reduces bit error rate in high-speed digital interfaces. |
| Lead (Pb)-Free & RoHS Compliant | Matte tin (e3) termination and UL 94 V-0 green molding compound - meets global environmental compliance and reflow compatibility requirements. |
| High Surge Robustness | 30 A peak pulse current (8/20 µs) with 429 W peak pulse power - sustains multiple ESD events without parameter shift or degradation. |
Applications
| USB 2.0 Interface Protection | HDMI DDC/CEC Line Protection |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines in portable devices against user-handling ESD events. IC Role / Device Role / Timing Role: ESD transient suppressor placed directly at connector, shunting surge current to ground before reaching USB transceiver. Use Value: Maintains <450 pF capacitance to avoid signal integrity loss at 480 Mbps, while clamping 30 kV discharges below host IC's 16 V absolute max rating. |
Use Scenario: Safeguarding HDMI DDC (I²C) and CEC control lines from electrostatic discharge during cable insertion/removal. IC Role / Device Role / Timing Role: Low-leakage (20 µA @ 4 V) clamp that remains transparent during 3.3 V I²C communication, activating only during transients. Use Value: Enables reliable hot-plug operation with <1.2 V forward clamping, preventing false I²C ACK/NACK errors caused by negative ESD spikes. |
| Industrial Serial Port (RS-232/485) | Automotive Infotainment Display Link |
Use Scenario: Adding secondary ESD protection on RS-232/485 data lines in factory automation controllers exposed to harsh ESD environments. IC Role / Device Role / Timing Role: Secondary clamp after primary TVS, reducing residual clamping voltage to protect sensitive UART transceivers. Use Value: Delivers 11.2–14.3 V clamping at 30 A, ensuring downstream transceivers remain within safe operating area even under repeated ±30 kV contact discharge. |
Use Scenario: Protecting LVDS or FPD-Link II video data lanes in automotive head units and digital instrument clusters. IC Role / Device Role / Timing Role: High-temp (−40 °C to +125 °C) ESD suppressor placed at display connector to prevent latch-up or damage from dashboard static discharge. Use Value: Stable 4 V VRWM and MSL Level 1 compatibility support reflow-soldered automotive-grade assembly, with 200 pF capacitance preserving pixel clock integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPD4E001DRYR | 4-channel array in X2SON-8; 5.5 V VRWM; 12 pF typical capacitance at 0 V. | Designed for multi-line protection (e.g., USB 2.0 + ID + VBUS); lower capacitance but higher VRWM limits use on 3.3 V-only lines. | Select when protecting ≥2 lines simultaneously and ultra-low capacitance is prioritized over single-line surge margin. |
| SMF05CT | Unidirectional 5 V TVS in SOD-123; 30 kV ESD rating; 100 pF capacitance at 0 V. | Lacks BiAs functionality - clamps only positive transients; requires external series resistor or dual-device configuration for bidirectional coverage. | Choose for cost-sensitive, space-constrained unidirectional protection where negative transient risk is mitigated by system design. |
Compared with TPD4E001DRYR and SMF05CT, GSOT04-HT3-GS08 provides dedicated single-line BiAs clamping with optimal balance of 4 V VRWM, 30 A surge capability, and 310–450 pF capacitance - making it uniquely suited for discrete, high-reliability protection of individual 3.3 V/5 V data lines without layout complexity.
Availability
GSOT04-HT3-GS08 is available at Aetrix Electronics and suitable for USB interface protection, HDMI control line safeguarding, and industrial serial port hardening requiring stable component supply across production lifecycles.
Supply support for GSOT04-HT3-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 high-reliability diodes, MOSFETs, optoelectronics, and protection devices for industrial, automotive, and computing markets.
The GSOT-HT3 family was developed specifically for compact, high-performance ESD protection of high-speed data lines - emphasizing asymmetrical clamping, low capacitance, and robust surge handling in ultra-small LLP packages.
FAQ
What is the primary circuit function of GSOT04-HT3-GS08?
The GSOT04-HT3-GS08 functions as a single-line bidirectional asymmetrical ESD protection diode. It routes transient energy from a signal line (pin 3) to ground (pin 1) using internal diode structures, with distinct forward (~1.2 V) and reverse (~11.2–14.3 V) clamping voltages. Its design ensures minimal interference during normal 3.3 V/5 V operation while reliably suppressing ±30 kV IEC 61000-4-2 ESD events - a core requirement for GSOT04-HT3-GS08 deployment in interface protection circuits.
Does GSOT04-HT3-GS08 require external components to operate correctly?
No, GSOT04-HT3-GS08 is a standalone ESD protection device requiring only direct placement between the protected signal line (pin 3) and system ground (pin 1). Its internal BiAs architecture eliminates the need for external resistors, capacitors, or additional diodes. Layout best practices - including short traces, solid ground plane coupling, and avoidance of vias in the protection path - are sufficient for GSOT04-HT3-GS08 to deliver specified clamping performance per IEC 61000-4-2 and IEC 61000-4-5.
What is the meaning of "BiAs mode" in GSOT04-HT3-GS08 specifications?
"BiAs mode" (Bidirectional Asymmetrical) refers to GSOT04-HT3-GS08's ability to clamp both positive and negative transients, but at significantly different voltage levels: ~1.2 V in forward direction (negative transients) and 11.2–14.3 V in reverse direction (positive transients). This asymmetry protects low-voltage logic thresholds from negative spikes while limiting positive surges to a safe level for downstream ICs - a defining characteristic confirmed in the GSOT04-HT3-GS08 datasheet's electrical characteristics table and BiAs-mode description.
Can GSOT04-HT3-GS08 be used in automotive applications?
Yes, GSOT04-HT3-GS08 supports automotive applications with its −40 °C to +125 °C operating temperature range, AEC-Q200 alignment (per Vishay qualification methodology), and robust 30 A IEC 61000-4-5 surge rating. It is commonly deployed in automotive infotainment systems to protect HDMI, USB, and display link interfaces from ESD during service or user interaction - provided board layout follows Vishay's recommended grounding and trace-length guidelines for GSOT04-HT3-GS08.
How does GSOT04-HT3-GS08 compare to GSOT03-HT3-GS08 in terms of voltage rating?
GSOT04-HT3-GS08 has a 4 V reverse standoff voltage (VRWM), whereas GSOT03-HT3-GS08 is rated for 3.3 V VRWM. This makes GSOT04-HT3-GS08 better suited for 5 V-tolerant interfaces or systems where margin above 3.3 V logic levels is required, while maintaining identical package (LLP75-3B), pinout, and ESD immunity (±30 kV). Both share the same BiAs clamping architecture, but GSOT04-HT3-GS08's higher VRWM reduces leakage risk in 5 V applications - a key distinction verified in the GSOT04-HT3-GS08 and GSOT03-HT3-GS08 absolute maximum ratings tables.
GSOT04-HT3-GS08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- 3-WDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 4V (Min)
- Voltage - Breakdown (Min):
- 5V
- Voltage - Clamping (Max) @ Ipp:
- 14.3V
- Current - Peak Pulse (10/1000µs):
- 30A (8/20µs)
- Power - Peak Pulse:
- 429W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 310pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LLP75-3B
GSOT04-HT3-GS08 FAQ
1.How can I place an order for GSOT04-HT3-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT04-HT3-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 GSOT04-HT3-GS08 reliable?
The price and inventory of GSOT04-HT3-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GSOT04-HT3-GS08 is usually 5 days.
3.What payment methods are accepted for GSOT04-HT3-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT04-HT3-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT04-HT3-GS08?
GSOT04-HT3-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT04-HT3-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 GSOT04-HT3-GS08?
For technical support, including GSOT04-HT3-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT04-HT3-GS08 requirements.
6.How does Aetrix verify that GSOT04-HT3-GS08 is sourced from the original manufacturer or authorized distributors?
All GSOT04-HT3-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 GSOT04-HT3-GS08 meets industry standards.
7.What is the process for return or replacement of GSOT04-HT3-GS08?
All GSOT04-HT3-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT04-HT3-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 GSOT04-HT3-GS08 part is unused and in its original packaging.
Return procedure for GSOT04-HT3-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT04-HT3-GS08 Tags
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