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Vishay General Semiconductor - Diodes Division VGSOT04-G3-08
- Part No.:
- VGSOT04-G3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VGSOT04-G3-08.pdf
- Description:
- TVS DIODE 4VWM 14.3VC SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,909
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Product details
Overview
VGSOT04-G3-08 from Vishay Semiconductors is a single-line unidirectional ESD protection diode in SOT-23 package, designed for high-reliability data line protection with 4 V reverse stand-off voltage (VRWM), ±30 kV IEC 61000-4-2/ISO 10605 ESD immunity, and 540 W peak pulse power (8/20 μs). It serves as a transient voltage suppressor on low-voltage signal paths such as USB 2.0, HDMI DDC, or I²C bus lines.
For engineers reviewing the VGSOT04-G3-08 datasheet, VGSOT04-G3-08 pinout, VGSOT04-G3-08 application, or VGSOT04-G3-08 equivalent, this page delivers verified electrical characteristics, BiAs-mode clamping behavior, AEC-Q101 qualification status, and real-world design implications for ESD-hardened interface circuits.
Technical Context
The VGSOT04-G3-08 implements Bidirectional Asymmetrical (BiAs-MODE) protection: pin 1 connects to ground, pin 3 to the protected line, enabling distinct forward (VF ≤ 1.2 V) and reverse (VBR = 5–7 V) clamping thresholds. Its unidirectional polarity ensures low leakage (<20 μA at VR = 4 V) and high isolation below VRWM.
It meets AEC-Q101 stress requirements including HBM Class H3B (>8 kV), operates from –55 °C to +150 °C, and features UL 94 V-0 molding compound with MSL level 1 soldering compatibility up to 260 °C peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 4 V - Maximum continuous operating voltage before conduction; sets upper limit for protected signal swing (e.g., 3.3 V logic rails). |
| VBR (at 1 mA) | 5–7 V - Reverse breakdown threshold; defines onset of clamping during positive transients. |
| VC (at 40 A, 8/20 μs) | 10.3–13.5 V - Peak clamping voltage under worst-case surge; determines maximum voltage seen by downstream IC. |
| VF (at 40 A, 8/20 μs) | ≤ 4.2 V - Forward clamping level during negative ESD events; keeps negative excursions near ground. |
| Capacitance (0 V, 1 MHz) | 360–450 pF - Signal-line loading effect; impacts high-speed integrity (e.g., limits usable bandwidth on >10 Mbps lines). |
| ESD Immunity | ±30 kV contact/air discharge (IEC 61000-4-2 & ISO 10605) - Validated robustness against human-body and system-level ESD events. |
| PPPM (8/20 μs) | 540 W - Surge energy handling capacity; supports protection of medium-energy interfaces like CAN FD or RS-485 stubs. |
Pinout & Package
SOT-23 package: 3-pin, surface-mount, green RoHS-compliant molded case (9.2 mg weight, UL 94 V-0 rating, MSL level 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground (Anode connection) | Low-inductance return path for ESD current; must be connected to solid system ground plane. |
| Pin 2 | No internal connection | Electrically isolated; no PCB trace or thermal pad required. |
| Pin 3 | Protected line (Cathode connection) | Input for signal/data line; clamps transients to ground via bidirectional asymmetrical conduction. |
Key Features
| Feature | Design Value |
|---|---|
| BiAs-MODE clamping | Distinct forward (≤1.2 V) and reverse (5–7 V) thresholds enable precise voltage limiting without compromising DC signal integrity. |
| AEC-Q101 qualified | Validated for automotive environments including temperature cycling, humidity bias, and mechanical shock per AEC-Q101 Rev D. |
| e3 Sn terminations | Lead (Pb)-free, matte tin plating ensures reliable solderability and long-term intermetallic stability on PCBs. |
| Low leakage current | <20 μA at VR = 4 V - Minimizes standby power loss and avoids false triggering in battery-powered sensor nodes. |
| High ESD robustness | ±30 kV air/contact discharge - Exceeds IEC 61000-4-2 Level 4, enabling single-device compliance for industrial control I/O ports. |
Applications
| USB 2.0 Data Lines | HDMI DDC Channel |
|---|---|
Use Scenario: Protecting differential USB 2.0 D+/D− signals from ESD events during hot-plug insertion in portable docking stations. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed inline between connector and USB PHY, with ground-referenced clamping. Use Value: Limits peak voltage to <13.5 V during 40 A surges, preventing latch-up or gate oxide damage in USB transceivers while maintaining <450 pF loading. |
Use Scenario: Safeguarding HDMI Display Data Channel (DDC) I²C bus (SCL/SDA) against ESD in consumer AV receivers. IC Role / Device Role / Timing Role: Single-line ESD clamp on each DDC line, leveraging low 4 V VRWM to avoid interfering with 3.3 V I²C logic levels. Use Value: Provides ±30 kV ESD immunity without adding series resistance or distorting rise/fall times due to absence of internal resistors. |
| Automotive LIN Bus | Industrial RS-232 Interface |
Use Scenario: Hardening LIN bus master node against ESD in vehicle body control modules exposed to service technician contact. IC Role / Device Role / Timing Role: Ground-referenced unidirectional protector on LIN signal line, compliant with AEC-Q101 for under-hood deployment. Use Value: Maintains signal fidelity over –40 °C to +125 °C ambient with <20 μA leakage, ensuring reliable wake-up pulse detection. |
Use Scenario: Protecting legacy RS-232 transceiver pins (TxD/RxD) in factory automation HMIs subjected to frequent operator ESD events. IC Role / Device Role / Timing Role: Discrete ESD clamp per signal line, selected for 4 V VRWM to match RS-232 driver output swing tolerance. Use Value: Delivers 540 W surge handling to absorb multiple 8/20 μs transients without degradation, supporting 25-year equipment lifecycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ4.0A | Higher VRWM (4.0 V), but higher clamping voltage (VC = 12.5 V at 40 A) and larger SMA package (5.3 × 4.3 mm vs. SOT-23's 2.9 × 1.3 mm). | Less suitable for space-constrained high-density PCBs; requires more board area and has higher parasitic inductance. | Select VGSOT04-G3-08 when footprint size, low capacitance, and tight clamping are critical. |
| TPD1E10B06DPYR | Lower capacitance (12 pF typical), but lower PPPM (350 W) and VRWM (3.6 V); not AEC-Q101 qualified. | Better for high-speed USB 3.0 or MIPI, but insufficient for automotive-grade surge robustness or 4 V rail compatibility. | Select VGSOT04-G3-08 when AEC-Q101 compliance and 540 W surge margin are mandatory. |
Compared with SMAJ4.0A and TPD1E10B06DPYR, the VGSOT04-G3-08 uniquely balances compact SOT-23 packaging, AEC-Q101 qualification, 4 V VRWM compatibility with 3.3 V systems, and 540 W surge capability-making it optimal for automotive and industrial signal-line hardening where space, reliability, and clamping precision are jointly constrained.
Availability
VGSOT04-G3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive LIN bus hardening, and industrial RS-232 port safeguarding requiring stable component supply across production lifecycles.
Supply support for VGSOT04-G3-08 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 Intertechnology is a global semiconductor manufacturer specializing in discrete components, sensors, and passive elements, with leadership in reliability-tested ESD protection solutions.
The VGSOTxx family was developed specifically for high-reliability unidirectional ESD suppression in automotive, industrial, and consumer interface applications where compact size, AEC-Q101 compliance, and precise clamping are essential.
FAQ
What is the maximum reverse working voltage (VRWM) of the VGSOT04-G3-08?
The VGSOT04-G3-08 has a maximum reverse working voltage (VRWM) of 4 V, meaning it remains non-conductive up to this DC or steady-state AC voltage level on the protected line. This value ensures compatibility with 3.3 V digital interfaces while providing margin against normal signal overshoot. The VGSOT04-G3-08 maintains leakage current below 20 μA at VR = 4 V, preserving signal integrity in low-power applications.
Does the VGSOT04-G3-08 meet automotive qualification standards?
Yes, the VGSOT04-G3-08 is AEC-Q101 qualified, having passed stress tests including human body model (HBM) Class H3B (>8 kV), temperature cycling, and high-temperature operating life. Its SOT-23 package uses UL 94 V-0 molding compound and supports peak reflow temperatures up to 260 °C, fulfilling automotive manufacturing and under-hood reliability requirements. The VGSOT04-G3-08 is explicitly listed in Vishay's AEC-Q101 qualified product documentation.
How does the BiAs-MODE operation affect circuit design for the VGSOT04-G3-08?
BiAs-MODE enables asymmetric clamping: positive transients trigger reverse-biased conduction (VBR = 5–7 V), while negative transients conduct forward (VF ≤ 1.2 V), clamping near ground. This eliminates need for external series resistors or dual-diode configurations. For the VGSOT04-G3-08, pin 1 must connect directly to low-impedance ground and pin 3 to the signal line-no polarity reversal or additional biasing is required.
What is the peak pulse power rating of the VGSOT04-G3-08 under IEC 61000-4-5 conditions?
The VGSOT04-G3-08 delivers 540 W peak pulse power (PPPM) under 8/20 μs waveform per IEC 61000-4-5, tested at 40 A peak current. This rating reflects its ability to absorb transient energy without failure during lightning-induced surges or inductive switching events. At the longer 10/1000 μs waveform, its PPPM drops to 44 W-critical for evaluating sustained overvoltage scenarios in industrial power supplies or motor drives using the VGSOT04-G3-08.
Is the VGSOT04-G3-08 compatible with lead-free reflow processes?
Yes, the VGSOT04-G3-08 features e3 matte tin (Sn) terminations and is rated for peak reflow temperatures up to 260 °C per J-STD-020, meeting IPC/JEDEC standard for lead-free assembly. Its MSL level 1 classification means unlimited floor life at ≤30 °C/60% RH, eliminating bake requirements prior to soldering. The VGSOT04-G3-08's green molding compound and halogen-free construction further support modern RoHS-compliant manufacturing flows.
VGSOT04-G3-08 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 4V (Max)
- Voltage - Breakdown (Min):
- 5V
- Voltage - Clamping (Max) @ Ipp:
- 13.5V
- Current - Peak Pulse (10/1000µs):
- 40A (8/20µs)
- Power - Peak Pulse:
- 540W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 360pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VGSOT04-G3-08 FAQ
1.How can I place an order for VGSOT04-G3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VGSOT04-G3-08 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 VGSOT04-G3-08 reliable?
The price and inventory of VGSOT04-G3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VGSOT04-G3-08 is usually 5 days.
3.What payment methods are accepted for VGSOT04-G3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VGSOT04-G3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VGSOT04-G3-08?
VGSOT04-G3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VGSOT04-G3-08 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 VGSOT04-G3-08?
For technical support, including VGSOT04-G3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VGSOT04-G3-08 requirements.
6.How does Aetrix verify that VGSOT04-G3-08 is sourced from the original manufacturer or authorized distributors?
All VGSOT04-G3-08 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 VGSOT04-G3-08 meets industry standards.
7.What is the process for return or replacement of VGSOT04-G3-08?
All VGSOT04-G3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VGSOT04-G3-08, 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 VGSOT04-G3-08 part is unused and in its original packaging.
Return procedure for VGSOT04-G3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VGSOT04-G3-08 Tags
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