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Vishay General Semiconductor - Diodes Division GSOT03-E3-08
- Part No.:
- GSOT03-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
GSOT03-E3-08.pdf
- Description:
- TVS DIODE 3.3VWM 12.3VC SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:14,486
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Product details
Overview
GSOT03-E3-08 from Vishay Semiconductors is a single-line bidirectional asymmetrical ESD protection diode in SOT-23 package, rated for ±30 kV IEC 61000-4-2 contact/air discharge, 3.3 V reverse stand-off voltage (VRWM), and 30 A peak pulse current (IPPM), deployed on high-speed data lines such as USB 2.0 or HDMI interfaces.
For engineers reviewing the GSOT03-E3-08 datasheet, GSOT03-E3-08 pinout, GSOT03-E3-08 application, or GSOT03-E3-08 equivalent, this page delivers verified electrical specs, BiAs-mode clamping behavior, SOT-23 terminal mapping, automotive-grade AEC-Q101 qualification status, and direct alternative part guidance aligned with Vishay's official end-of-life transition path.
Technical Context
The GSOT03-E3-08 implements BiAs-MODE (Bidirectional Asymmetrical) protection: pin 1 is grounded, pin 3 connects to the protected signal line, and clamping occurs at 4.0–5.5 V (VBR) in reverse and ≤1.2 V (VF) in forward direction under transient stress. Its asymmetry enables low-voltage signal integrity preservation while maintaining robust ESD immunity.
It operates across –40 °C to +125 °C junction temperature, complies with AEC-Q101 for automotive use, and features 420–600 pF capacitance at 0 V bias-optimized for <10 Mbps digital interfaces where capacitive loading must remain below 600 pF without compromising ESD margin.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | ±30 kV contact & air discharge per IEC 61000-4-2 - meets highest system-level ESD immunity requirement for consumer and automotive ports. |
| Reverse Stand-off Voltage | 3.3 V VRWM - matches 3.3 V logic supply rails, preventing leakage during normal operation while enabling fast turn-on during transients. |
| Peak Pulse Current | 30 A per IEC 61000-4-5 (8/20 μs) - sustains high-energy surges without failure, supporting industrial-grade surge resilience. |
| Clamping Voltage | ≤12.3 V at 30 A IPPM - limits downstream IC voltage stress to safe levels during worst-case ESD events. |
| Capacitance | 420–600 pF at 0 V, 260 pF at 1.6 V - balances ESD robustness and signal integrity for USB 2.0, SDIO, and I²C buses. |
| Operating Temperature | –40 °C to +125 °C TJ - qualified for under-hood automotive and extended-temperature industrial environments. |
| AEC-Q101 Qualified | Yes - validated for automotive electronics per stress test standard, including HBM >8 kV (Class H3B). |
Pinout & Package
SOT-23 package: 3-pin surface-mount plastic case, 2.8 × 2.35 × 1.15 mm body dimensions, e3 Sn plating, MSL level 1, peak reflow ≤260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground reference | Connected directly to PCB ground plane; serves as return path for both forward and reverse transient currents. |
| Pin 2 | No connection (NC) | Internally unconnected; must be left floating or tied to ground only if required by layout symmetry - no electrical function. |
| Pin 3 | Protected signal line | Connected to data line (e.g., USB D+, HDMI TMDS+); clamped to ground via BiAs diode structure during ESD events. |
Key Features
| Feature | Design Value |
|---|---|
| BiAs-MODE clamping | Asymmetric forward (≤1.2 V) and reverse (≤12.3 V) clamping enables low-voltage signal compatibility while preserving high-energy surge handling. |
| SOT-23 footprint | Standardized 3-pin package allows drop-in replacement in existing layouts designed for similar TVS diodes without redesign. |
| AEC-Q101 qualification | Validated for automotive applications including infotainment, ADAS sensor interfaces, and body control modules requiring reliability over full temperature range. |
| e3 matte tin termination | RoHS-compliant Sn plating ensures solderability, wire-bond compatibility, and resistance to whisker formation in long-life deployments. |
| Low leakage current | ≤100 μA at 3.3 V VR - minimizes standby power loss and avoids false triggering in battery-powered portable systems. |
Applications
| USB 2.0 Interface Protection | HDMI Source Port Protection |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines against ESD events during hot-plug insertion in portable media players and docking stations. IC Role / Device Role / Timing Role: Single-line ESD clamp placed immediately before the USB transceiver IC input pins to limit transient voltage excursion. Use Value: Maintains signal integrity with ≤600 pF capacitance while delivering ±30 kV ESD immunity - prevents latch-up or damage to PHY layer ICs. |
Use Scenario: Shielding HDMI TMDS+ differential pairs from ESD during cable mating in set-top boxes and AV receivers. IC Role / Device Role / Timing Role: Per-line protection device mounted at connector side of HDMI receptacle to shunt transients before reaching serializer IC. Use Value: 3.3 V VRWM aligns with HDMI 1.4/2.0 receiver input thresholds; BiAs clamping avoids DC offset distortion on high-speed video signals. |
| Automotive Infotainment Display Link | Industrial SD Card Interface |
Use Scenario: Safeguarding MIPI D-PHY or LVDS display data lanes in automotive head units exposed to cabin ESD sources. IC Role / Device Role / Timing Role: Point-of-entry protection on display flex cable connectors to suppress transients before reaching timing controller IC. Use Value: AEC-Q101 qualification and –40 °C to +125 °C operation ensure compliance with automotive environmental stress requirements. |
Use Scenario: Securing SDIO command/data lines in programmable logic controllers and HMIs where card insertion generates ESD. IC Role / Device Role / Timing Role: Low-capacitance ESD suppressor placed between SD card slot and host controller to preserve 25 MHz clock timing margins. Use Value: 420–600 pF capacitance at 0 V bias avoids signal rise-time degradation while meeting IEC 61000-4-2 Level 4 immunity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VGSOT03-08 | Successor series with identical SOT-23 pinout, same VRWM (3.3 V), but improved 35 A IPPM rating and lower 11.5 V clamping at 30 A. | Direct replacement in new designs targeting extended surge margin; requires validation of layout thermal relief due to higher power dissipation capability. | Select VGSOT03-08 for new automotive or industrial designs requiring longer product lifecycle beyond January 2025 EOL date of GSOT03-E3-08. |
| SMF3.3A | Unidirectional 3.3 V TVS diode in SOD-123; 30 A IPPM, 12.5 V VC at 30 A, but lacks BiAs asymmetry and has higher 150 pF typical capacitance. | Suitable for DC-biased lines only; not recommended for AC-coupled or bidirectional data buses like USB or HDMI without additional circuitry. | Choose SMF3.3A only when protecting unidirectional power or control lines where polarity is fixed and capacitance sensitivity is low. |
Compared with GSOT03-E3-08, VGSOT03-08 offers enhanced surge endurance and extended availability, while SMF3.3A provides unidirectional protection at lower cost but sacrifices signal integrity on high-speed bidirectional interfaces due to higher capacitance and lack of asymmetrical clamping.
Availability
GSOT03-E3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment display links, and industrial SD card interface applications requiring stable component supply through its scheduled end-of-life window.
Supply support for GSOT03-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 high-reliability passive and protection components for automotive, industrial, and computing markets.
The GSOTxx family was developed specifically for board-level ESD protection of high-speed digital interfaces, emphasizing low capacitance, precise clamping, and AEC-Q101 qualification for automotive electronics.
FAQ
What is the exact pin configuration and grounding requirement for GSOT03-E3-08?
The GSOT03-E3-08 uses a 3-pin SOT-23 package with Pin 1 as ground, Pin 2 as no-connect (NC), and Pin 3 as the protected signal line. Pin 1 must be connected to a low-impedance PCB ground plane to ensure effective transient current shunting; Pin 2 must remain unconnected. This configuration enables its BiAs-MODE clamping behavior, where transients on Pin 3 are routed to ground via internal diode structures. The GSOT03-E3-08 datasheet confirms this terminal assignment across all absolute maximum ratings and electrical characteristics tables.
Does GSOT03-E3-08 meet AEC-Q101 qualification, and what test conditions does that cover?
Yes, GSOT03-E3-08 is AEC-Q101 qualified, specifically meeting Class H3B human body model (HBM) with >8 kV ESD immunity. This qualification covers stress testing for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life - all performed per AEC-Q101 Rev D requirements. The qualification applies to the standard (non-green) version; the "E3" suffix denotes matte tin plating, which is included in the qualified construction. GSOT03-E3-08 maintains full AEC-Q101 compliance across its –40 °C to +125 °C operating junction temperature range.
What is the clamping voltage behavior of GSOT03-E3-08 under real-world ESD stress?
Under IEC 61000-4-2 ESD stress, GSOT03-E3-08 clamps at ≤12.3 V when subjected to its rated 30 A peak pulse current (IPPM), and at ≤7.5 V for 1 A pulses. Its BiAs-MODE design yields asymmetric response: forward clamping remains ≤1.2 V (enabling low-voltage signal preservation), while reverse clamping starts at 4.0–5.5 V breakdown (VBR) and rises with current. This behavior is verified in Figure 6 and Table "ELECTRICAL CHARACTERISTICS GSOT03" of the official Vishay document 85807, confirming performance across multiple pulse amplitudes and bias conditions.
How does GSOT03-E3-08 compare to GSOT05-E3-08 in terms of voltage rating and application suitability?
GSOT03-E3-08 has a 3.3 V reverse stand-off voltage (VRWM) and 4.0–5.5 V breakdown (VBR), making it suitable for 3.3 V logic interfaces like USB 2.0 and SDIO. In contrast, GSOT05-E3-08 has a 5.0 V VRWM and 6.0–8.0 V VBR, targeting 5 V systems such as legacy UART or parallel bus interfaces. Their capacitance also differs: GSOT03-E3-08 offers 420–600 pF, while GSOT05-E3-08 is lower at 260–350 pF. Thus, GSOT03-E3-08 is preferred for 3.3 V high-speed lines where tighter voltage matching matters, whereas GSOT05-E3-08 suits higher-voltage, lower-capacitance needs - both share identical SOT-23 packaging and BiAs clamping architecture.
Is GSOT03-E3-08 still available for purchase, and what is its end-of-life timeline?
GSOT03-E3-08 is currently available at Aetrix Electronics with confirmed stock and scheduled production through its announced end-of-life date of January 2025, as documented in Vishay's official notice (Rev. 2.9, 13-Feb-2025, Doc. #85807). Vishay recommends migrating to the VGSOTxx series (e.g., VGSOT03-08) for new designs. Aetrix supports last-time buy planning, extended inventory holding, and cross-reference assistance to ensure continuity for customers using GSOT03-E3-08 in active production programs prior to the EOL cutoff.
GSOT03-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- 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:
- General Purpose
- Capacitance @ Frequency:
- 420pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
GSOT03-E3-08 FAQ
1.How can I place an order for GSOT03-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT03-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 GSOT03-E3-08 reliable?
The price and inventory of GSOT03-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 GSOT03-E3-08 is usually 5 days.
3.What payment methods are accepted for GSOT03-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT03-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT03-E3-08?
GSOT03-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT03-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 GSOT03-E3-08?
For technical support, including GSOT03-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT03-E3-08 requirements.
6.How does Aetrix verify that GSOT03-E3-08 is sourced from the original manufacturer or authorized distributors?
All GSOT03-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 GSOT03-E3-08 meets industry standards.
7.What is the process for return or replacement of GSOT03-E3-08?
All GSOT03-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT03-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 GSOT03-E3-08 part is unused and in its original packaging.
Return procedure for GSOT03-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT03-E3-08 Tags
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