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Vishay General Semiconductor - Diodes Division GSOT03C-HT3-GS08
- Part No.:
- GSOT03C-HT3-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 3-WDFN
- Datasheet:
-
GSOT03C-HT3-GS08.pdf
- Description:
- TVS DIODE 3.3VWM 12.3VC LLP75-3B
- Quantity:
- Payment:
- Shipping:
Inventory:2,768
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Product details
Overview
GSOT03C-HT3-GS08 from Vishay Semiconductors is a two-line bidirectional asymmetrical ESD protection diode in LLP75-3B package, rated for ±30 kV IEC 61000-4-2 contact/air discharge, with 3.3 V reverse stand-off voltage (VRWM), 4.6 V typical breakdown (VBR), and 12.3 V max clamping at 30 A (VC). It protects high-speed data lines such as USB 2.0 or HDMI interfaces against electrostatic transients.
For engineers reviewing the GSOT03C-HT3-GS08 datasheet, GSOT03C-HT3-GS08 pinout, GSOT03C-HT3-GS08 application, or GSOT03C-HT3-GS08 equivalent, this device supports BiAs-mode (pin 1/2 to ground) and BiSy-mode (pin 1 to pin 2) configurations, offers 420–600 pF capacitance at 0 V, and delivers 369 W peak pulse power in line-to-ground configuration.
Technical Context
The GSOT03C-HT3-GS08 implements a dual-diode architecture enabling two distinct protection modes: BiAs-mode uses pin 3 as common ground with pins 1 and 2 protecting separate signal lines, delivering asymmetrical clamping (VF ≈ 1.2 V forward, VC ≈ 12.3 V reverse at 30 A); BiSy-mode connects pin 3 as floating and uses pins 1–2 as a single symmetrical path, yielding matched positive/negative clamping.
Its LLP75-3B package features 0.75 mm pitch, lead (Pb)-free matte tin (e3) finish, MSL level 1 rating, and UL 94 V-0 molding compound - optimized for space-constrained PCB layouts while maintaining robust thermal and mechanical reliability under repeated ESD stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD immunity | ±30 kV contact & air discharge per IEC 61000-4-2 - meets industrial and consumer interface-level ESD requirements without external shielding. |
| Reverse stand-off voltage (VRWM) | 3.3 V at IR = 100 µA - ensures no leakage or false triggering on 3.3 V logic/data lines during normal operation. |
| Clamping voltage (VC) | 12.3 V max at IPP = 30 A (BiAs mode, pin 1→3) - limits transient overvoltage to safe levels for downstream 3.3 V ICs. |
| Diode capacitance (CD) | 420–600 pF at 0 V, 1 MHz - compatible with USB 2.0 (≤600 pF) but not recommended for >480 Mbps differential signaling without layout optimization. |
| Peak pulse power (PPP) | 369 W (pin 1→3, 8/20 µs) - sustains single-event surge energy without degradation in typical I/O protection applications. |
| Operating temperature | −40 °C to +125 °C junction - supports automotive infotainment, industrial HMI, and extended-temperature embedded systems. |
Pinout & Package
GSOT03C-HT3-GS08 is housed in the LLP75-3B surface-mount package (0.75 mm pitch, 1.2 × 0.8 × 0.5 mm), with pin 1 marked by a dot. The device has three terminals optimized for low-inductance ESD current shunting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Signal line input (L1) | Primary protected data line terminal; forms one half of BiAs protection path to pin 3 (ground). |
| Pin 2 | Signal line input (L2) | Secondary protected data line terminal; forms second BiAs path to pin 3 (ground); interchangeable with pin 1. |
| Pin 3 | Ground reference | Common cathode connection for both internal diodes; must be low-impedance to system ground for effective clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Two-line ESD protection | Single LLP75-3B device protects two independent signal paths (e.g., D+ and D−), reducing component count vs. discrete diodes. |
| Bidirectional asymmetrical (BiAs) mode | Enables low forward-voltage clamping (~1.2 V) for negative transients and controlled reverse clamping (~12.3 V) for positive surges - ideal for unidirectional-biased interfaces. |
| Bidirectional symmetrical (BiSy) mode | Supports pin 1–2 configuration with matched ±14–16.8 V clamping at 30 A - suitable for balanced or AC-coupled lines requiring equal positive/negative protection. |
| Lead (Pb)-free & RoHS-compliant | Matte tin (e3) termination and UL 94 V-0 green molding compound meet global environmental compliance mandates without performance trade-offs. |
Applications
| USB 2.0 Interface Protection | HDMI Data Lane Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of a USB 2.0 host port against user-handling ESD events in portable docking stations. IC Role / Device Role: Two-line transient voltage suppressor placed immediately before the USB PHY IC. Use Value: 3.3 V VRWM and 420–600 pF capacitance maintain signal integrity up to 480 Mbps while passing ±30 kV IEC 61000-4-2 testing. |
Use Scenario: Shielding TMDS data channels (clock and data pairs) in HDMI 1.4 source devices from board-level ESD coupling. IC Role / Device Role: Line-to-ground ESD clamp on each differential pair using BiAs mode with shared ground (pin 3). Use Value: 12.3 V max clamping at 30 A prevents damage to HDMI transmitter output stages rated for ≤1.8 V common-mode swing. |
| Industrial Serial Interface (RS-485) | Automotive Infotainment Display Link |
Use Scenario: Safeguarding RS-485 A/B bus lines in factory automation controllers exposed to cable-discharge events. IC Role / Device Role: BiSy-mode configured across A–B terminals to provide symmetrical surge suppression without polarity dependency. Use Value: 14–16.8 V clamping at 30 A aligns with RS-485 receiver common-mode range (−7 V to +12 V), preventing latch-up or permanent failure. |
Use Scenario: Protecting MIPI D-PHY lanes between head unit SoC and LCD display module in automotive dashboards. IC Role / Device Role: Dual-line BiAs protection on clock and data lanes, with pin 3 tied to chassis ground via short trace. Use Value: −40 °C to +125 °C operation and MSL level 1 solderability ensure reliability in under-hood thermal cycling and reflow assembly. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar two-line ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ3.3A-E3/57T | Single-line, unidirectional SMA package; 3.3 V VRWM, 12.3 V VC at 22.5 A; higher capacitance (≈1000 pF). | Requires two devices per differential pair; unsuitable for high-speed data due to excessive capacitance and larger footprint. | Use only when board space allows discrete placement and speed < 12 Mbps. |
| TPD2E001DRYR | Two-line, bidirectional, 3.3 V VRWM, 12 V VC at 3 A; ultra-low capacitance (12 pF typical); SOT-553 package. | Lower surge rating (3 A IPP vs. 30 A) limits use to low-energy ESD zones; not rated for IEC 61000-4-5 surge. | Select for USB 2.0 or MIPI where low capacitance is critical and system-level surge testing is not required. |
Compared with SMAJ3.3A-E3/57T and TPD2E001DRYR, the GSOT03C-HT3-GS08 uniquely combines dual-line integration, ±30 kV ESD robustness, and 30 A IEC 61000-4-5 surge capability in a 1.2 × 0.8 mm footprint - making it optimal for space-constrained, high-reliability data interface protection.
Availability
GSOT03C-HT3-GS08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI data lane safeguarding, and industrial RS-485 bus applications requiring stable component supply across production lifecycles.
Supply support for GSOT03C-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, and protection devices engineered for automotive, industrial, and computing markets.
The GSOT03C-HT3-GS08 belongs to Vishay's GSOTxxC-HT3 family of two-line ESD suppressors, designed specifically for compact, high-surge-capacity protection of high-speed serial interfaces without compromising signal fidelity.
FAQ
What protection modes does the GSOT03C-HT3-GS08 support?
The GSOT03C-HT3-GS08 supports two distinct ESD protection configurations: BiAs-mode (bidirectional asymmetrical), where pin 3 is grounded and pins 1/2 protect separate signal lines with different forward/reverse clamping behavior; and BiSy-mode (bidirectional symmetrical), where pin 3 is left unconnected and pins 1–2 form a single symmetrical path. Both modes are validated per IEC 61000-4-2 and IEC 61000-4-5 standards for the GSOT03C-HT3-GS08.
What is the maximum clamping voltage of the GSOT03C-HT3-GS08 under full-rated surge current?
The GSOT03C-HT3-GS08 exhibits a maximum clamping voltage (VC) of 12.3 V at 30 A peak pulse current (8/20 µs waveform) in BiAs-mode (pin 1 to pin 3). This value is measured under standardized IEC 61000-4-5 test conditions and ensures downstream 3.3 V logic components remain within safe operating voltage margins during worst-case transients.
Can the GSOT03C-HT3-GS08 be used for USB 2.0 data line protection?
Yes, the GSOT03C-HT3-GS08 is qualified for USB 2.0 data line protection: its 3.3 V VRWM matches standard USB I/O voltage levels, its 420–600 pF capacitance falls within the USB 2.0 specification limit (≤600 pF), and its ±30 kV ESD rating exceeds the IEC 61000-4-2 requirement for end-equipment. Layout best practices (short ground traces, symmetric routing) are essential to preserve signal integrity for the GSOT03C-HT3-GS08.
What is the package type and moisture sensitivity level of the GSOT03C-HT3-GS08?
The GSOT03C-HT3-GS08 uses the LLP75-3B package - a 3-terminal, lead (Pb)-free, 0.75 mm pitch surface-mount outline measuring 1.2 × 0.8 × 0.5 mm. It carries a moisture sensitivity level (MSL) rating of level 1 per J-STD-020, meaning it may be stored indefinitely at ambient conditions and withstands reflow peak temperatures up to 260 °C for 10 seconds at terminals - fully compatible with standard PCB assembly processes for the GSOT03C-HT3-GS08.
How does the GSOT03C-HT3-GS08 compare to single-line TVS diodes in terms of board space and performance?
The GSOT03C-HT3-GS08 integrates two independent ESD protection paths into a single 1.2 × 0.8 mm LLP75-3B package, reducing PCB area by ~40% versus two discrete SMAJ-type diodes. It delivers matched 30 A surge capability per line and maintains lower parasitic inductance than discrete solutions - resulting in tighter clamping (12.3 V vs. ≥15 V typical for singles) and superior high-frequency transient response for the GSOT03C-HT3-GS08.
GSOT03C-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:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Min)
- 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:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LLP75-3B
GSOT03C-HT3-GS08 FAQ
1.How can I place an order for GSOT03C-HT3-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT03C-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 GSOT03C-HT3-GS08 reliable?
The price and inventory of GSOT03C-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 GSOT03C-HT3-GS08 is usually 5 days.
3.What payment methods are accepted for GSOT03C-HT3-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT03C-HT3-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT03C-HT3-GS08?
GSOT03C-HT3-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT03C-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 GSOT03C-HT3-GS08?
For technical support, including GSOT03C-HT3-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT03C-HT3-GS08 requirements.
6.How does Aetrix verify that GSOT03C-HT3-GS08 is sourced from the original manufacturer or authorized distributors?
All GSOT03C-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 GSOT03C-HT3-GS08 meets industry standards.
7.What is the process for return or replacement of GSOT03C-HT3-GS08?
All GSOT03C-HT3-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT03C-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 GSOT03C-HT3-GS08 part is unused and in its original packaging.
Return procedure for GSOT03C-HT3-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT03C-HT3-GS08 Tags
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