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Vishay General Semiconductor - Diodes Division GSOT04-E3-08
- Part No.:
- GSOT04-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
GSOT04-E3-08.pdf
- Description:
- TVS DIODE 4VWM 14.3VC SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,948
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Product details
Overview
GSOT04-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, 4 V reverse stand-off voltage (VRWM), and 429 W peak pulse power (PPP) at 8/20 μs. It protects one signal line in USB 2.0 data paths, HDMI hot-swap interfaces, and industrial sensor I/O.
For engineers reviewing the GSOT04-E3-08 datasheet, GSOT04-E3-08 pinout, GSOT04-E3-08 application, or GSOT04-E3-08 equivalent, key selection criteria include clamping voltage at 30 A (11.2–14.3 V), low leakage (<20 μA at 4 V), 310–450 pF capacitance at 0 V bias, and AEC-Q101 qualification for automotive-grade reliability.
Technical Context
The GSOT04-E3-08 implements BiAs-MODE (Bidirectional Asymmetrical) protection: reverse breakdown at 5–7 V enables high-impedance isolation below 4 V VRWM, while forward conduction clamps negative transients near ground (VF ≤ 1.2 V at 30 A). Its SOT-23 footprint supports compact PCB layouts with MSL level 1 handling.
Designed for transient suppression per IEC 61000-4-5 (8/20 μs waveform), it delivers 30 A peak pulse current (IPPM) and sustains junction temperatures from –40 °C to +125 °C. The e3 Sn plating ensures RoHS-compliant, lead-free solderability with peak reflow up to 260 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | ±30 kV contact & air discharge (IEC 61000-4-2); meets automotive ESD immunity requirements |
| Reverse Stand-off Voltage | 4 V VRWM - blocks normal signal voltages up to 4 V while remaining non-conductive |
| Clamping Voltage | 11.2–14.3 V at 30 A IPPM - limits transient overvoltage to safe levels for downstream ICs |
| Capacitance | 310–450 pF at 0 V - optimized for USB 2.0 (≤480 Mbps) and low-speed serial interfaces |
| Leakage Current | ≤20 μA at 4 V - minimizes DC loading on sensitive analog or logic inputs |
| Package | SOT-23 - industry-standard 3-pin surface-mount footprint compatible with automated assembly |
| AEC-Q101 Qualified | Yes - validated for automotive applications including infotainment and body electronics |
Pinout & Package
SOT-23 package: 3-pin, gull-wing leads, 2.8 × 2.35 × 1.15 mm body, MSL level 1, peak reflow 260 °C, e3 matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground reference | Low-impedance return path for ESD current; must connect directly to system ground plane |
| Pin 2 | No connection (NC) | Internally unconnected; left floating or tied to ground per layout best practice |
| Pin 3 | Protected line input | Connects to signal/data line (e.g., USB D+, HDMI TMDS+); clamped during transients |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Asymmetrical Clamping (BiAs-MODE) | Enables low forward-voltage clamping (~1 V) for negative transients and controlled reverse breakdown (~6 V) for positive surges |
| High ESD Immunity | ±30 kV per IEC 61000-4-2 ensures robustness against human-body and system-level ESD events |
| Automotive Qualification | AEC-Q101 qualified - validated for temperature cycling, humidity, and mechanical stress in automotive environments |
| Low Capacitance Variation | Capacitance drops to ~200 pF at 2 V reverse bias - maintains signal integrity across operating voltage range |
| Green Packaging | e3 Sn plating and halogen-free molding compound meet RoHS and ELV compliance requirements |
Applications
| USB 2.0 Data Lines | HDMI Hot-Swap Interfaces |
|---|---|
Use Scenario: Protecting D+ and D− lines in portable USB peripherals against user-induced ESD during cable insertion. IC Role / Device Role / Timing Role: Single-line transient voltage suppressor placed between connector and USB transceiver IC. Use Value: Limits clamping voltage to ≤14.3 V at 30 A, preventing damage to 3.3 V tolerant PHY circuitry while maintaining <450 pF loading for 480 Mbps signaling. | Use Scenario: Safeguarding TMDS clock and data channels in display adapters exposed to repeated plug/unplug cycles. IC Role / Device Role / Timing Role: Point-of-entry ESD clamp on each differential pair, referenced to chassis ground. Use Value: Delivers ±30 kV ESD immunity without degrading signal rise/fall times due to controlled 310–450 pF capacitance at DC bias. |
| Industrial Sensor I/O | Automotive Body Control Modules |
Use Scenario: Shielding analog and digital I/O pins of pressure, temperature, or proximity sensors in factory automation equipment. IC Role / Device Role / Timing Role: Per-signal-line protection device mounted adjacent to connector or ASIC interface. Use Value: Withstands 429 W peak pulse power and operates from –40 °C to +125 °C, ensuring reliability in harsh ambient conditions. | Use Scenario: Protecting LIN bus or switch inputs in door modules, seat controllers, and lighting ECUs subject to ISO 10605 ESD stress. IC Role / Device Role / Timing Role: AEC-Q101-qualified ESD suppressor on low-voltage control lines interfacing with microcontrollers. Use Value: Meets automotive H3B-class ESD (≥8 kV HBM) and provides stable 4 V VRWM to avoid false triggering on 5 V logic rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VGSOT04 | Successor series with identical VRWM (4 V), lower leakage (≤10 μA), and improved thermal performance; same SOT-23 footprint | Targeted for new designs requiring extended lifecycle beyond January 2025 EOL date of GSOT04-E3-08 | Select VGSOT04 for long-term supply assurance and marginally tighter parametric specs. |
| SMF4.0A | Unidirectional TVS; 4.0 V standoff, 13.4 V clamping at 1 A; higher capacitance (~600 pF); no AEC-Q101 qualification | Suitable for cost-sensitive industrial applications where bidirectional clamping and automotive qualification are not required | Choose SMF4.0A only when unidirectional protection suffices and AEC-Q101 is unnecessary. |
Compared with VGSOT04, GSOT04-E3-08 offers identical electrical protection but lacks the successor's enhanced surge lifetime and updated qualification; versus SMF4.0A, it provides superior bidirectional response, lower capacitance, and automotive-grade reliability-critical for USB, HDMI, and vehicle ECUs.
Availability
GSOT04-E3-08 is available at Aetrix Electronics and suitable for USB 2.0 interfaces, HDMI hot-swap circuits, and automotive body control modules requiring stable component supply through its End-of-Life date in January 2025.
Supply support for GSOT04-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 protection devices with emphasis on reliability and application-specific performance.
The GSOTxx family was developed to deliver high-energy ESD protection in miniature SOT-23 packages for space-constrained, high-reliability signal-line applications across automotive, industrial, and consumer electronics.
FAQ
What is the maximum clamping voltage of GSOT04-E3-08 under full-rated ESD stress?
The GSOT04-E3-08 clamps to 11.2–14.3 V at its peak pulse current rating of 30 A (IEC 61000-4-5, 8/20 μs). This value ensures protected ICs see limited overvoltage during worst-case transients. The GSOT04-E3-08 datasheet specifies this as the reverse clamping voltage (VC) under IPPM conditions, directly bounding the voltage seen by downstream circuitry.
Is GSOT04-E3-08 suitable for protecting high-speed USB 2.0 signals?
Yes, GSOT04-E3-08 is suitable for USB 2.0 data lines due to its 310–450 pF capacitance at 0 V bias and low clamping voltage profile. Its capacitance remains well below the 1 nF limit recommended for 480 Mbps operation, and its BiAs-MODE architecture avoids signal distortion from symmetrical clamping. The GSOT04-E3-08 has been validated in USB port protection reference designs by Vishay.
Does GSOT04-E3-08 require a heatsink or thermal pad?
No, GSOT04-E3-08 does not require a heatsink or thermal pad. Its SOT-23 package is designed for transient energy dissipation without sustained thermal buildup; the 429 W peak pulse power rating applies to single-shot 8/20 μs events. Layout best practice is short, low-inductance traces to ground - not thermal mass. The GSOT04-E3-08 operates reliably within its –40 °C to +125 °C junction temperature range under normal use.
What is the meaning of "E3-08" in GSOT04-E3-08?
In GSOT04-E3-08, "E3" denotes matte tin (Sn) plating per JEDEC J-STD-020, indicating RoHS-compliant, lead-free termination; "08" specifies the packaging configuration: 3K per 7″ reel on 8 mm tape. This coding aligns with Vishay's standard ordering nomenclature. The GSOT04-E3-08 part number uniquely identifies this environmental and packaging variant of the GSOT04 device.
How does GSOT04-E3-08 differ from GSOT05-E3-08 in system-level protection?
GSOT04-E3-08 has a 4 V VRWM and 5–7 V VBR, making it optimal for 3.3 V systems like USB and HDMI; GSOT05-E3-08 uses 5 V VRWM and 6–8 V VBR, better suited for 5 V logic rails. Their clamping voltages diverge at high current: GSOT04-E3-08 clamps to ≤14.3 V at 30 A, while GSOT05-E3-08 reaches ≤16 V. Both share ±30 kV ESD rating, but the GSOT04-E3-08 offers lower capacitance (310–450 pF vs. 260–350 pF) and higher PPP (429 W vs. 480 W).
GSOT04-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):
- 4V (Max)
- Voltage - Breakdown (Min):
- 5V
- Voltage - Clamping (Max) @ Ipp:
- 14.3V
- Current - Peak Pulse (10/1000µs):
- 30A (8/20µs)
- Power - Peak Pulse:
- 429W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 310pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
GSOT04-E3-08 FAQ
1.How can I place an order for GSOT04-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT04-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 GSOT04-E3-08 reliable?
The price and inventory of GSOT04-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 GSOT04-E3-08 is usually 5 days.
3.What payment methods are accepted for GSOT04-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT04-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT04-E3-08?
GSOT04-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT04-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 GSOT04-E3-08?
For technical support, including GSOT04-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT04-E3-08 requirements.
6.How does Aetrix verify that GSOT04-E3-08 is sourced from the original manufacturer or authorized distributors?
All GSOT04-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 GSOT04-E3-08 meets industry standards.
7.What is the process for return or replacement of GSOT04-E3-08?
All GSOT04-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT04-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 GSOT04-E3-08 part is unused and in its original packaging.
Return procedure for GSOT04-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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