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Vishay General Semiconductor - Diodes Division GSOT15C-HG3-08
- Part No.:
- GSOT15C-HG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
GSOT15C-HG3-08.pdf
- Description:
- TVS DIODE 15VWM 28.8VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:9,597
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Product details
Overview
GSOT15C-HG3-08 from Vishay Semiconductors is a two-line bidirectional asymmetrical ESD protection diode in SOT-23 package, rated for 15 V reverse stand-off voltage, ±30 kV IEC 61000-4-2 ESD immunity, and 8 A peak pulse current (8/20 μs), deployed for USB 2.0 data line protection in automotive infotainment systems.
For engineers reviewing the GSOT15C-HG3-08 datasheet, GSOT15C-HG3-08 pinout, GSOT15C-HG3-08 application, or GSOT15C-HG3-08 equivalent, key selection criteria include clamping voltage at 8 A (24.8–28.8 V), 90–120 pF capacitance at 0 V bias, AEC-Q101 qualification, SOT-23 footprint compatibility, and BiAs-mode dual-line transient suppression capability.
Technical Context
The GSOT15C-HG3-08 implements BiAs-MODE (Bidirectional Asymmetrical) protection: pins 1 and 2 connect to protected signal lines (e.g., D+ and D−), while pin 3 is grounded. Each internal diode provides independent reverse-biased clamping with 16.5–20 V breakdown and forward-biased clamping at ≤1.8 V under 8 A surge.
It supports BiSy-MODE as a single-line symmetrical protector when pin 3 is left unconnected and pins 1–2 form the protected path, delivering matched positive/negative clamping via series diode conduction - enabling flexible layout reuse across differential and single-ended interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Protection Type | Two-line bidirectional asymmetrical (BiAs) or one-line bidirectional symmetrical (BiSy) |
| Reverse Stand-off Voltage | 15 V - ensures no leakage during normal 15 V rail operation; compatible with 12 V automotive bus signaling |
| ESD Immunity | ±30 kV contact/air discharge per IEC 61000-4-2 - meets Level 4 system-level ESD robustness for exposed ports |
| Peak Pulse Current | 8 A (8/20 μs) - sustains automotive load-dump transients without failure |
| Clamping Voltage | 24.8–28.8 V at 8 A - limits downstream IC stress below 30 V absolute maximum ratings |
| Capacitance | 90–120 pF at 0 V - low enough for USB 2.0 (480 Mbps) signal integrity with <0.5 dB insertion loss |
| AEC-Q101 Qualified | Yes - validated for automotive temperature range (−55 °C to +150 °C) and reliability testing |
Pinout & Package
SOT-23 package (JEDEC TO-236AB), 3-pin, e3 Sn-plated, MSL level 1, 8.8 mg weight, UL 94 V-0 molding compound, compatible with standard reflow profiles (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Line 1 Anode / Cathode | Connects to first protected signal (e.g., USB D+); forms one half of BiAs protection path to ground (pin 3) |
| Pin 2 | Line 2 Anode / Cathode | Connects to second protected signal (e.g., USB D−); forms second half of BiAs path to ground (pin 3) |
| Pin 3 | Ground Reference | Must be connected to system ground for BiAs mode; left floating for BiSy single-line mode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Asymmetrical Clamping | Enables independent high-voltage reverse clamping (≥19.4 V) and low-voltage forward clamping (≤1.8 V) on each line - ideal for differential data buses |
| Low Capacitance (90–120 pF) | Preserves signal edge rate and eye diagram integrity in 480 Mbps USB 2.0 applications without added termination |
| AEC-Q101 Qualification | Validated for automotive use including HTOL, TC, UHAST, and ESD testing - supports ASIL-B system integration |
| SOT-23 Footprint | Standard 3-pin surface-mount package enables drop-in replacement in existing layouts and automated assembly compatibility |
| ±30 kV ESD Rating | Exceeds IEC 61000-4-2 Level 4 - eliminates need for secondary board-level ESD components in cost-sensitive modules |
Applications
| USB 2.0 Interface Protection | Automotive Infotainment Display Link |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 host/device ports against ESD events during cable hot-plug in vehicle center consoles. IC Role / Device Role / Timing Role: Two-line ESD clamp placed directly at connector, shunting transients to chassis ground before reaching USB transceiver. Use Value: Prevents latch-up or damage to USB PHY ICs while maintaining <100 ps propagation delay and full 480 Mbps bandwidth. | Use Scenario: Safeguarding LVDS or FPD-Link II video data pairs between head unit and TFT display in dashboards. IC Role / Device Role / Timing Role: Bidirectional asymmetrical protector on each differential pair, referenced to vehicle ground plane. Use Value: Maintains common-mode noise rejection and signal symmetry while clamping ±30 kV ESD without adding skew or jitter. |
| Industrial CAN FD Data Lines | Medical Patient Monitor Sensor Ports |
Use Scenario: Adding secondary ESD hardening to CAN FD physical layer (CANH/CANL) in factory automation gateways. IC Role / Device Role / Timing Role: Low-capacitance parallel clamp on each CAN line, operating in BiAs mode with shared ground reference. Use Value: Adds ±30 kV contact discharge immunity without degrading 5 Mbps CAN FD signal rise time or common-mode range. | Use Scenario: Protecting analog sensor inputs (e.g., ECG leads, SpO₂ connectors) from electrostatic discharge in handheld patient monitors. IC Role / Device Role / Timing Role: Single-line BiSy configuration on each input channel, with pin 3 unconnected and pins 1–2 forming protected path. Use Value: Delivers symmetrical clamping (<±1.8 V) to preserve microvolt-level signal fidelity while meeting IEC 61000-4-2 clinical equipment requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VGSOT15C-HG3-08 | Direct successor family; identical SOT-23 footprint, same VRWM (15 V), improved leakage (<0.5 μA vs. 1 μA) | End-of-life replacement with extended lifecycle support beyond January 2025 | Select for new designs requiring long-term supply continuity and marginally lower IR. |
| SMF15CTHE3_A/H | Single-line TVS (SOD-123), 15 V VRWM, 12 A IPPM, higher capacitance (150 pF) | Requires two devices for dual-line protection; unsuitable for space-constrained USB layouts | Use only when BiAs functionality is unnecessary and board area permits discrete placement per line. |
Compared with VGSOT15C-HG3-08, the original GSOT15C-HG3-08 offers proven field reliability but lacks future supply assurance; versus SMF15CTHE3_A/H, it delivers integrated dual-line protection with 30% lower capacitance and 40% smaller footprint - critical for miniaturized medical and automotive modules.
Availability
GSOT15C-HG3-08 is available at Aetrix Electronics and suitable for automotive infotainment, industrial CAN FD gateways, medical patient monitor sensor interfaces, and USB 2.0 peripheral ports requiring stable component supply through end-of-life in January 2025.
Supply support for GSOT15C-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 passive components for automotive, industrial, and computing markets.
The GSOTxxC family was engineered specifically for compact, high-performance ESD protection in space-constrained automotive and portable electronics, emphasizing low capacitance, AEC-Q101 compliance, and dual-mode (BiAs/BiSy) flexibility.
FAQ
What is the maximum clamping voltage of GSOT15C-HG3-08 under 8 A IEC 61000-4-5 surge conditions?
The GSOT15C-HG3-08 exhibits a reverse clamping voltage of 24.8–28.8 V when subjected to an 8 A peak pulse current (8/20 μs waveform) per IEC 61000-4-5. This value is measured between pins 1–3 or 2–3 with pin 3 grounded, and ensures protected ICs remain within safe operating voltage margins during surge events. The GSOT15C-HG3-08 datasheet specifies this range under standard test conditions at Tamb = 25 °C.
Can GSOT15C-HG3-08 be used for single-line protection, and how is it configured?
Yes, GSOT15C-HG3-08 supports single-line bidirectional symmetrical (BiSy) protection. To configure it, leave pin 3 unconnected and route the signal between pins 1 and 2. In this mode, the device delivers matched clamping for both polarities - with forward voltage ≤1.8 V at 8 A - making it suitable for analog sensor inputs or CAN FD lines where polarity symmetry is required. The GSOT15C-HG3-08 maintains its 15.5 V reverse stand-off rating in BiSy mode.
Is GSOT15C-HG3-08 qualified for automotive applications, and what standards does it meet?
Yes, GSOT15C-HG3-08 is AEC-Q101 qualified for automotive use, having passed stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST). It also complies with IEC 61000-4-2 (±30 kV contact/air discharge) and IEC 61000-4-5 (8/20 μs surge), supporting deployment in ASIL-B systems such as infotainment head units and body control modules. The GSOT15C-HG3-08 operates across −55 °C to +150 °C junction temperature.
What is the typical capacitance of GSOT15C-HG3-08 at 0 V bias, and why does it matter for high-speed interfaces?
The GSOT15C-HG3-08 has a typical capacitance of 90–120 pF at 0 V reverse bias and 1 MHz frequency. This low value minimizes signal distortion and insertion loss on high-speed differential lines like USB 2.0 (480 Mbps), preserving eye opening and reducing bit error rates. At 7.5 V bias, capacitance drops to ≤35 pF - further enhancing performance in biased data paths. The GSOT15C-HG3-08's capacitance profile is optimized to avoid resonance issues near 480 MHz harmonics.
How does the BiAs-MODE operation of GSOT15C-HG3-08 differ from conventional dual-diode ESD arrays?
BiAs-MODE in GSOT15C-HG3-08 provides asymmetric clamping: reverse conduction (e.g., positive transients) triggers high-voltage clamping (~24.8 V at 8 A), while forward conduction (e.g., negative transients) clamps tightly near ground (<1.8 V at 8 A). This differs from symmetrical arrays by enabling precise voltage limiting on differential pairs without compromising low-side signal integrity. The GSOT15C-HG3-08 achieves this using matched internal diodes with controlled series impedance and breakdown characteristics.
GSOT15C-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):
- 15V (Max)
- Voltage - Breakdown (Min):
- 16.5V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 8A (8/20µs)
- Power - Peak Pulse:
- 345W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 90pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
GSOT15C-HG3-08 FAQ
1.How can I place an order for GSOT15C-HG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT15C-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 GSOT15C-HG3-08 reliable?
The price and inventory of GSOT15C-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 GSOT15C-HG3-08 is usually 5 days.
3.What payment methods are accepted for GSOT15C-HG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT15C-HG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT15C-HG3-08?
GSOT15C-HG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT15C-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 GSOT15C-HG3-08?
For technical support, including GSOT15C-HG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT15C-HG3-08 requirements.
6.How does Aetrix verify that GSOT15C-HG3-08 is sourced from the original manufacturer or authorized distributors?
All GSOT15C-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 GSOT15C-HG3-08 meets industry standards.
7.What is the process for return or replacement of GSOT15C-HG3-08?
All GSOT15C-HG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT15C-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 GSOT15C-HG3-08 part is unused and in its original packaging.
Return procedure for GSOT15C-HG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT15C-HG3-08 Tags
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