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Vishay General Semiconductor - Diodes Division GSOT08C-E3-08
- Part No.:
- GSOT08C-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
GSOT08C-E3-08.pdf
- Description:
- TVS DIODE 8VWM 19.2VC SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:16,759
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Product details
Overview
GSOT08C-E3-08 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, 8 V reverse stand-off voltage (VRWM), and 18 A peak pulse current (IPPM) per path. It protects high-speed data lines such as USB 2.0 or HDMI interfaces against transient overvoltage events.
For engineers reviewing the GSOT08C-E3-08 datasheet, GSOT08C-E3-08 pinout, GSOT08C-E3-08 application, or GSOT08C-E3-08 equivalent, key selection criteria include clamping voltage at 18 A (≤19.2 V), low 160–250 pF capacitance at 0 V bias, AEC-Q101 qualification status, BiAs-mode dual-line operation, and SOT-23 footprint compatibility with space-constrained PCB layouts.
Technical Context
The GSOT08C-E3-08 implements BiAs-MODE (Bidirectional Asymmetrical) protection: pins 1 and 2 connect to protected signal lines, pin 3 to ground, enabling independent clamping of positive transients (via reverse-biased diodes) and negative transients (via forward conduction). Its asymmetry yields lower forward clamping (~3.0 V at 18 A) versus reverse clamping (~19.2 V at 18 A).
It supports dual operational modes - two-line BiAs mode (pin 3 grounded) and single-line BiSy mode (pin 3 floating, pins 1–2 used across line-to-ground) - with verified 8.5 V VRWM and 11.7 V typical VBR in BiSy configuration. All variants meet MSL level 1 per J-STD-020 and are RoHS-compliant with Sn (e3) plating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD immunity | ±30 kV contact/air discharge per IEC 61000-4-2 - ensures robust system-level ESD survivability without external shielding. |
| Reverse stand-off voltage (VRWM) | 8 V - defines maximum continuous operating voltage before leakage exceeds 5 μA; matches 3.3 V/5 V logic rails with margin. |
| Peak pulse current (IPPM) | 18 A per path (IEC 61000-4-5, 8/20 μs) - sustains high-energy surges without failure in industrial or automotive environments. |
| Clamping voltage (VC) | ≤19.2 V at 18 A (pin 1–3 or 2–3) - limits transient voltage seen by downstream ICs, protecting 20 V-tolerant receivers. |
| Capacitance (CD) | 160–250 pF at 0 V, 80 pF at 4 V - balances ESD robustness and signal integrity for ≤100 Mbps data lines. |
| Operating temperature | −55 °C to +150 °C - supports under-hood automotive, industrial control, and extended-range consumer applications. |
Pinout & Package
SOT-23 package (JEDEC TO-236AB), 3-pin surface-mount, 2.8 × 2.35 × 1.15 mm body size, e3 matte tin plating, MSL level 1, 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 line (e.g., USB D+); forms one half of dual-channel ESD path to ground (pin 3). |
| Pin 2 | Line 2 anode/cathode | Connects to second protected signal line (e.g., USB D−); symmetrically paired with pin 1 for balanced BiAs protection. |
| Pin 3 | Ground reference | Must be connected to system ground plane; serves as common return for both ESD current paths in BiAs mode. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional asymmetrical (BiAs) clamping | Enables separate optimization: low forward VF (~3.0 V at 18 A) for negative transients, controlled reverse VC (~19.2 V) for positive surges. |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - suitable for infotainment, ADAS sensor interfaces, and body control modules. |
| Low leakage current | IR ≤ 5 μA at 8 V - prevents signal distortion or power drain in always-on circuits like battery-backed sensors. |
| Space-saving SOT-23 footprint | Replaces discrete dual-diode arrays while maintaining 100 % PCB area reduction versus SO-8 or SC-70 alternatives. |
| Two operational modes | Supports both dual-line BiAs (pins 1/2 → signals, pin 3 → GND) and single-line BiSy (pins 1–2 → line/GND, pin 3 open) configurations. |
Applications
| USB 2.0 Interface Protection | HDMI Data Lane Protection |
|---|---|
Use Scenario: Protecting differential USB 2.0 D+/D− lines from ESD events during hot-plug insertion in portable docking stations. IC Role / Device Role / Timing Role: Two-line ESD clamp placed directly at connector, shunting transients before they reach USB transceiver IC. Use Value: 160–250 pF capacitance avoids signal integrity degradation at 480 Mbps; ±30 kV rating exceeds IEC 61000-4-2 Level 4 requirement. | Use Scenario: Safeguarding HDMI TMDS clock and data channels against user-handling ESD in home theater AV receivers. IC Role / Device Role / Timing Role: Bidirectional asymmetrical protector on each TMDS pair, referenced to chassis ground via pin 3. Use Value: 8 V VRWM accommodates HDMI DC bias; 19.2 V clamping preserves receiver input tolerance margin under surge conditions. |
| Automotive Infotainment Display Link | Industrial RS-485 Transceiver Interface |
Use Scenario: ESD hardening of MIPI DSI or LVDS video links between head unit and digital instrument cluster. IC Role / Device Role / Timing Role: Dual-channel TVS diode array on high-speed serial video bus, leveraging BiAs mode for minimal forward-voltage impact. Use Value: −55 °C to +150 °C operating range meets AEC-Q100 Grade 2; AEC-Q101 qualification confirms reliability in automotive thermal cycles. | Use Scenario: Transient suppression on RS-485 A/B differential pairs in factory automation PLC I/O modules exposed to field wiring noise. IC Role / Device Role / Timing Role: Line-to-ground ESD clamp in BiSy configuration (pin 1–2 across A–B, pin 3 unused), providing symmetrical clamping. Use Value: 18.5 V clamping at 18 A ensures compliance with IEC 61000-4-5 surge immunity (Level 3, 1 kV); 80 pF at 4 V minimizes data edge distortion. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VGSOT08C-E3-08 | Successor series with identical SOT-23 footprint, same 8 V VRWM, ±30 kV ESD rating, and BiAs/BiSy dual-mode support; improved thermal resistance and updated AEC-Q101 test report. | Drop-in replacement with no layout change; recommended for new designs due to extended product lifecycle beyond January 2025. | Select VGSOT08C-E3-08 for long-term supply assurance and latest qualification evidence; GSOT08C-E3-08 remains viable for legacy BOM continuity until EOL. |
| TPD2E001DRYR | TI dual-channel ESD protector in SOT-5X3 (1.6 × 1.6 mm); lower 12 pF capacitance but only 12 A IPPM and 5.5 V VRWM - not suitable for 8 V rail systems. | Targeted at ultra-high-speed interfaces (e.g., USB 3.0, PCIe); insufficient voltage rating for 8 V applications. | Choose TPD2E001DRYR only when <15 pF capacitance is mandatory and operating voltage ≤5.5 V; otherwise, GSOT08C-E3-08 provides superior voltage headroom and surge handling. |
Compared with VGSOT08C-E3-08, the GSOT08C-E3-08 offers identical electrical performance and footprint but lacks the updated thermal and reliability documentation; versus TPD2E001DRYR, it trades higher capacitance for significantly greater voltage rating and surge current capability - making it optimal for industrial and automotive 8 V signal protection.
Availability
GSOT08C-E3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment display links, and industrial RS-485 transceiver interfaces requiring stable component supply through its end-of-life date in January 2025.
Supply support for GSOT08C-E3-08 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 power management, sensing, and circuit protection components with emphasis on reliability and automotive-grade qualification.
The GSOTxxC family was designed specifically for high-reliability bidirectional ESD protection of high-speed data lines in automotive, industrial, and consumer electronics - emphasizing low clamping voltage, dual-mode flexibility, and AEC-Q101 compliance.
FAQ
What is the maximum operating temperature range for the GSOT08C-E3-08?
The GSOT08C-E3-08 operates reliably from −55 °C to +150 °C, meeting AEC-Q101 thermal stress requirements. This wide junction temperature range enables use in under-hood automotive modules, industrial motor drives, and outdoor-rated equipment where ambient temperatures exceed 100 °C. The GSOT08C-E3-08 maintains specified clamping and leakage performance across this full range.
Does the GSOT08C-E3-08 support both bidirectional asymmetrical and symmetrical protection modes?
Yes, the GSOT08C-E3-08 supports two distinct protection configurations: BiAs-MODE (bidirectional asymmetrical) with pin 3 grounded for dual-line protection, and BiSy-MODE (bidirectional symmetrical) with pin 3 left unconnected and pins 1–2 used across a single line-to-ground path. Both modes are validated in the official Vishay datasheet for GSOT08C-E3-08, with separate electrical characteristics provided for each.
What is the reverse leakage current specification for the GSOT08C-E3-08 at its rated VRWM?
At its 8 V reverse stand-off voltage (VRWM), the GSOT08C-E3-08 exhibits a maximum reverse leakage current (IR) of 5 μA, measured at 8 V and 25 °C. This low leakage ensures minimal power loss and signal loading on protected lines - critical for battery-powered devices and high-impedance sensor interfaces where current draw must remain below microampere thresholds.
Is the GSOT08C-E3-08 pin-compatible with other devices in the GSOTxxC family?
Yes, all GSOTxxC devices - including GSOT03C-E3-08, GSOT05C-E3-08, and GSOT08C-E3-08 - share identical SOT-23 package dimensions, pin numbering, and mechanical footprint. This allows direct substitution within the same PCB layout when adjusting VRWM or IPPM requirements, provided the system's voltage and surge specifications align with the selected variant's ratings.
What is the clamping voltage of the GSOT08C-E3-08 under full-rated surge current?
Under IEC 61000-4-5 8/20 μs surge conditions at its full 18 A peak pulse current (IPPM), the GSOT08C-E3-08 clamps to a maximum of 19.2 V between either pin 1–3 or pin 2–3. This value is measured per the official Vishay absolute maximum ratings table for GSOT08C and ensures downstream ICs with ≥20 V absolute maximum input ratings remain protected during worst-case transients.
GSOT08C-E3-08 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):
- 8V (Max)
- Voltage - Breakdown (Min):
- 9V
- Voltage - Clamping (Max) @ Ipp:
- 19.2V
- Current - Peak Pulse (10/1000µs):
- 18A (8/20µs)
- Power - Peak Pulse:
- 345W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 160pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
GSOT08C-E3-08 FAQ
1.How can I place an order for GSOT08C-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT08C-E3-08 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 GSOT08C-E3-08 reliable?
The price and inventory of GSOT08C-E3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GSOT08C-E3-08 is usually 5 days.
3.What payment methods are accepted for GSOT08C-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT08C-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT08C-E3-08?
GSOT08C-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT08C-E3-08 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 GSOT08C-E3-08?
For technical support, including GSOT08C-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT08C-E3-08 requirements.
6.How does Aetrix verify that GSOT08C-E3-08 is sourced from the original manufacturer or authorized distributors?
All GSOT08C-E3-08 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 GSOT08C-E3-08 meets industry standards.
7.What is the process for return or replacement of GSOT08C-E3-08?
All GSOT08C-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT08C-E3-08, 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 GSOT08C-E3-08 part is unused and in its original packaging.
Return procedure for GSOT08C-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT08C-E3-08 Tags
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