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Vishay General Semiconductor - Diodes Division GSOT15-HT3-GS08
- Part No.:
- GSOT15-HT3-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 3-WDFN
- Datasheet:
-
GSOT15-HT3-GS08.pdf
- Description:
- TVS DIODE 15VWM 28.8VC LLP75-3B
- Quantity:
- Payment:
- Shipping:
Inventory:7,891
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Product details
Overview
GSOT15-HT3-GS08 from Vishay Semiconductors is a single-line bidirectional asymmetrical (BiAs) ESD protection diode in LLP75-3B package, rated for 15 V reverse standoff voltage (VRWM), ±30 kV IEC 61000-4-2 ESD immunity, and 8 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 GSOT15-HT3-GS08 datasheet, GSOT15-HT3-GS08 pinout, GSOT15-HT3-GS08 application, or GSOT15-HT3-GS08 equivalent, this device delivers low-capacitance (90–120 pF at 0 V), asymmetric clamping (19.4–23.5 V reverse / ≤1.8 V forward at 8 A), and MSL Level 1 solderability - critical for compact, high-reliability consumer and industrial interface protection.
Technical Context
The GSOT15-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 - reverse transients clamp above VRWM (15 V), while negative transients clamp near ground via low VF (≤1.8 V at 8 A).
This architecture provides distinct forward/reverse clamping thresholds (VC = 24.8–28.8 V at IPPM = 8 A; VF ≤ 1.8 V), supports 1-line protection only, and maintains <1 µA leakage at VRWM, making it suitable for low-power, noise-sensitive signal paths where capacitance and leakage must be tightly controlled.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 15 V - maximum continuous operating voltage before clamping begins; defines safe signal swing range for protected line. |
| Peak Pulse Current (IPPM) | 8 A - maximum single-shot 8/20 µs surge current the device safely diverts without failure. |
| Reverse Clamping Voltage (VC) | 24.8–28.8 V at 8 A - upper voltage limit imposed on protected line during worst-case positive ESD event. |
| Forward Clamping Voltage (VF) | ≤1.8 V at 8 A - low-voltage clamping of negative transients, minimizing undershoot and ground bounce. |
| Capacitance (CD) | 90–120 pF at 0 V, 35 pF at 7.5 V - ensures minimal signal distortion on high-speed lines up to ~200 MHz. |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - exceeds Level 4 system-level ESD requirements for end-equipment certification. |
| Package | LLP75-3B - 1.2 × 0.8 × 0.5 mm, 3-pin leadless land grid array with MSL Level 1 rating and matte tin (e3) finish. |
Pinout & Package
GSOT15-HT3-GS08 uses the LLP75-3B surface-mount package: 1.2 mm × 0.8 mm footprint, 0.5 mm height, 0.5 mm pitch, with exposed thermal pad (no electrical connection). Pin 1 is marked by dot; Pin 1 = Ground, Pin 2 = Internal node, Pin 3 = Protected signal line.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground reference | Low-inductance return path for ESD current; must connect directly to solid ground plane. |
| Pin 2 | Internal connection node | Not externally accessible; enables BiAs clamping architecture between Pins 1 and 3. |
| Pin 3 | Protected signal line | Input/output terminal for data or signal line requiring ESD protection (e.g., USB D+, HDMI TMDS+). |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Asymmetrical (BiAs) clamping | Enables independent optimization of positive/negative transient suppression: high reverse VC for robustness, ultra-low VF for clean negative clamping. |
| Low leakage current | <1 µA at 15 V VRWM - preserves signal integrity and battery life in always-on, low-power interfaces. |
| Ultra-low capacitance at bias | 35 pF at 7.5 V reverse bias - minimizes insertion loss and crosstalk on high-speed differential pairs. |
| Lead (Pb)-free & RoHS-compliant | Matte tin (e3) termination and UL 94 V-0 molding compound - meets global environmental and safety standards. |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C / 85 % RH - eliminates bake requirements and simplifies SMT assembly planning. |
Applications
| USB 2.0 Interface Protection | HDMI Signal Line Protection |
|---|---|
|
Use Scenario: Protecting D+ and D− lines in portable USB peripherals against user-handling ESD events. IC Role / Device Role / Timing Role: Standalone ESD suppressor placed immediately at connector entry point, before PHY IC. Use Value: Prevents latch-up or damage to USB transceivers under ±30 kV contact discharge while adding <120 pF loading. |
Use Scenario: Safeguarding TMDS clock and data channels in flat-panel displays and set-top boxes. IC Role / Device Role / Timing Role: Point-of-entry transient suppressor on each TMDS pair, co-located with connector. Use Value: Maintains signal rise/fall time integrity (<100 ps impact) and prevents pixel corruption during hot-plug ESD events. |
| Industrial Sensor Interface | Automotive Infotainment Data Lines |
|
Use Scenario: Shielding RS-485 or CAN FD data lines in factory automation nodes exposed to cable-discharge events. IC Role / Device Role / Timing Role: Low-leakage, high-VRWM protector on bidirectional bus lines operating up to 12 V common-mode. Use Value: Ensures reliable communication continuity after repeated 8/20 µs surges up to 8 A without parameter drift. |
Use Scenario: Protecting LVDS or FPD-Link III video/data lines in head units and digital clusters. IC Role / Device Role / Timing Role: ESD guard for high-speed serial links meeting AEC-Q200 stress requirements. Use Value: Delivers automotive-grade robustness (−40 °C to +125 °C TJ) with <0.5 mm profile for space-constrained PCB layouts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-E3/57T | Unidirectional, DO-214AC package (4.5 × 2.7 mm), 15 V VBR, 23.2 V VC @ 12.3 A, 1500 pF. | Higher capacitance and larger footprint; suited for board-level power rail or lower-speed lines. | Select when higher surge rating (12.3 A IPPM) outweighs size/capacitance constraints. |
| TPD2E001DRYR | 2-channel, SOT-563, 5 V VRWM, 12 V VC @ 1 A, 12 pF typical, integrated 10 Ω series resistors. | Lower VRWM and dual-channel layout; optimized for 3.3 V logic and I²C/SPI buses. | Prefer for multi-line, low-voltage digital interfaces where ultra-low capacitance and integrated resistance are critical. |
Compared with SMAJ15A-E3/57T and TPD2E001DRYR, GSOT15-HT3-GS08 uniquely balances 15 V VRWM, 8 A surge capability, sub-120 pF capacitance, and 1.2 × 0.8 mm LLP75-3B footprint - making it optimal for space-constrained, medium-voltage, high-speed single-line protection where BiAs clamping improves system-level ESD margin.
Availability
GSOT15-HT3-GS08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI signal line hardening, and industrial sensor interface designs requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for GSOT15-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 passive components for industrial, automotive, and computing markets.
The GSOT-HT3 family was engineered specifically for compact, high-performance ESD protection of high-speed data lines - emphasizing low capacitance, asymmetrical clamping, and robust IEC 61000-4-2 compliance in ultra-small packages.
FAQ
What is the maximum operating temperature range for GSOT15-HT3-GS08?
The GSOT15-HT3-GS08 has a junction temperature range of −40 °C to +125 °C and a storage temperature range of −55 °C to +150 °C. This wide thermal envelope allows deployment in harsh environments including automotive engine bays, industrial control cabinets, and outdoor consumer electronics where ambient temperatures exceed 85 °C.
Does GSOT15-HT3-GS08 support IEC 61000-4-5 surge protection?
Yes, GSOT15-HT3-GS08 is rated for 8 A peak pulse current (IPPM) per IEC 61000-4-5 (8/20 µs waveform), delivering 230 W peak pulse power. While not a full surge protector, it provides essential secondary-level protection downstream of bulk TVS devices in multi-stage ESD/surge architectures.
How does the BiAs-mode operation of GSOT15-HT3-GS08 improve ESD robustness?
GSOT15-HT3-GS08 uses BiAs-mode to deliver asymmetric clamping: positive transients clamp at 24.8–28.8 V (reverse), while negative transients clamp below 1.8 V (forward). This reduces ground bounce and signal undershoot during negative ESD events, improving system immunity beyond symmetrical diodes - a key advantage verified in IEC 61000-4-2 testing.
What is the capacitance of GSOT15-HT3-GS08 at operating bias?
At 7.5 V reverse bias (half of VRWM), GSOT15-HT3-GS08 exhibits 35 pF capacitance measured at 1 MHz. This low-bias capacitance minimizes signal degradation on high-speed lines like USB 2.0 and HDMI, preserving eye diagram integrity and reducing jitter compared to higher-capacitance alternatives.
Is GSOT15-HT3-GS08 compatible with lead-free reflow processes?
Yes, GSOT15-HT3-GS08 features matte tin (e3) lead finish and is qualified for Pb-free reflow per J-STD-020. Its MSL Level 1 rating permits unlimited exposure to ambient conditions before soldering, and it withstands peak temperatures of 260 °C for 10 seconds at terminals - fully compliant with standard SnAgCu reflow profiles.
GSOT15-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):
- 15V (Min)
- Voltage - Breakdown (Min):
- 16.5V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 8A (8/20µs)
- Power - Peak Pulse:
- 230W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 90pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LLP75-3B
GSOT15-HT3-GS08 FAQ
1.How can I place an order for GSOT15-HT3-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT15-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 GSOT15-HT3-GS08 reliable?
The price and inventory of GSOT15-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 GSOT15-HT3-GS08 is usually 5 days.
3.What payment methods are accepted for GSOT15-HT3-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT15-HT3-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT15-HT3-GS08?
GSOT15-HT3-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT15-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 GSOT15-HT3-GS08?
For technical support, including GSOT15-HT3-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT15-HT3-GS08 requirements.
6.How does Aetrix verify that GSOT15-HT3-GS08 is sourced from the original manufacturer or authorized distributors?
All GSOT15-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 GSOT15-HT3-GS08 meets industry standards.
7.What is the process for return or replacement of GSOT15-HT3-GS08?
All GSOT15-HT3-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT15-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 GSOT15-HT3-GS08 part is unused and in its original packaging.
Return procedure for GSOT15-HT3-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT15-HT3-GS08 Tags
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