My Inquiry
My Account
Vishay General Semiconductor - Diodes Division VGSOT03-G3-08
- Part No.:
- VGSOT03-G3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VGSOT03-G3-08.pdf
- Description:
- TVS DIODE 3.3VWM 12.3VC SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:5,144
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
VGSOT03-G3-08 from Vishay Semiconductors is a unidirectional single-line ESD protection diode in SOT-23 package, rated for 3.3 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 delivers 44 A peak pulse current and clamps transients to ≤12.3 V at full stress, protecting USB 2.0 data lines in industrial human-interface devices.
For engineers reviewing the VGSOT03-G3-08 datasheet, VGSOT03-G3-08 pinout, VGSOT03-G3-08 application, or VGSOT03-G3-08 equivalent, this page provides verified electrical parameters, BiAs-mode clamping behavior, AEC-Q101 qualification status, SOT-23 footprint details, and direct alternatives with documented parameter divergence.
Technical Context
The VGSOT03-G3-08 implements Bidirectional Asymmetrical (BiAs) protection mode: pin 1 grounded, pin 3 connected to signal line; reverse conduction begins at VBR ≥4 V, forward clamping holds VF ≤1.2 V at 1 A. Its asymmetry enables low-voltage signal integrity preservation during negative transients while maintaining robust positive surge suppression.
Designed for IEC 61000-4-2 and ISO 10605 compliance, it sustains ±30 kV contact/air discharge (330 pF / 330 Ω), operates from –55 °C to +150 °C, and meets AEC-Q101 Class H3B (>8 kV HBM) with MSL level 1 moisture sensitivity and UL 94 V-0 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 3.3 V - Maximum continuous working voltage before leakage exceeds 100 µA; sets upper limit for protected signal swing. |
| VBR (min) | 4 V - Reverse breakdown threshold at 1 mA; defines earliest onset of clamping for positive transients. |
| VC @ IPPM | ≤12.3 V - Clamping voltage at 44 A (8/20 µs); determines maximum voltage seen by downstream IC during worst-case surge. |
| VF @ IPPM | ≤4.5 V - Forward clamping voltage at 44 A; ensures negative transients are suppressed close to ground potential. |
| CD @ 0 V | 460–600 pF - Junction capacitance at zero bias; impacts high-speed signal rise time and insertion loss on data lines. |
| PPPM (8/20 µs) | 540 W - Peak pulse power handling; quantifies transient energy absorption capability without failure. |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive or sealed industrial enclosures. |
Pinout & Package
SOT-23 package: 3-pin, surface-mount, green molded, 9.2 mg weight, UL 94 V-0 flammability rating, MSL level 1, compatible with standard reflow profiles (peak 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Ground (Anode common) | Low-inductance return path for ESD current; must connect directly to system ground plane. |
| 2 | No connection (NC) | Internally isolated; no bond wire or die connection; must remain floating per design. |
| 3 | Protected line (Cathode) | Input for signal/data line; reverse-biased during normal operation; conducts to pin 1 during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| BiAs-mode clamping | Asymmetric forward/reverse clamping (VF ≤1.2 V / VC ≤12.3 V) preserves signal integrity while enabling robust dual-polarity protection. |
| AEC-Q101 qualified | Qualified to automotive-grade reliability standards including HBM >8 kV, supporting deployment in automotive infotainment and body electronics. |
| e3 Sn termination | Lead (Pb)-free, matte tin plating compliant with RoHS and JEDEC J-STD-020; ensures solderability and long-term intermetallic stability. |
| IEC/ISO-certified ESD immunity | ±30 kV contact/air discharge validated per IEC 61000-4-2 and ISO 10605 - exceeds most end-equipment immunity requirements. |
| Low thermal impedance | Junction-to-lead Zth ≈ 40 K/W (typical) enables rapid heat dissipation during repetitive surges without thermal runaway. |
Applications
| USB 2.0 Interface Protection | Industrial HMI Touch Panels |
|---|---|
Use Scenario: Protecting D+ and D− lines in USB 2.0 peripheral ports against ESD events during cable insertion or user contact. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed between connector and USB transceiver IC. Use Value: Limits clamped voltage to ≤12.3 V at 44 A, preventing latch-up or damage to 3.3 V USB PHY while maintaining <600 pF capacitance for 480 Mbps signaling. |
Use Scenario: Safeguarding resistive/capacitive touch controller inputs exposed on front-panel overlays in factory HMIs. IC Role / Device Role / Timing Role: Point-of-entry ESD clamp on analog sense lines and digital interrupt signals. Use Value: Withstands repeated ±30 kV discharges without degradation, ensuring field reliability in dusty, high-static environments where maintenance access is limited. |
| Automotive Body Control Modules | Medical Patient Monitor Ports |
Use Scenario: Protecting LIN bus or sensor input lines in door modules, seat controllers, or lighting ECUs subject to AEC-Q101 requirements. IC Role / Device Role / Timing Role: Single-line ESD suppressor on 12 V-tolerant signal paths interfacing with microcontrollers. Use Value: AEC-Q101 qualification and –55 °C to +150 °C operating range ensure compliance with automotive environmental stress testing and lifetime durability targets. |
Use Scenario: Shielding serial communication (RS-232/UART) and analog sensor inputs on bedside patient monitors exposed to clinical ESD sources. IC Role / Device Role / Timing Role: Primary ESD barrier on external I/O connectors per IEC 60601-1-2 4th edition requirements. Use Value: 3.3 V VRWM aligns with low-voltage logic interfaces; ±30 kV immunity exceeds clinical ESD test levels (±8 kV contact, ±15 kV air). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ3.3A | DO-214AC package; 3.3 V VRWM; 600 W PPPM; higher CD (≈1000 pF); unidirectional only. | Larger footprint (7.1 × 4.5 mm vs. SOT-23's 2.9 × 1.3 mm); unsuitable for space-constrained USB layouts. | Select when board area permits larger package and higher surge margin is prioritized over capacitance. |
| TPD2E001DRYR | 2-channel, bidirectional; 3.6 V VRWM; 3.5 pF CD; 150 W PPPM; same SOT-23-6 package. | Lower clamping (VC ≤8.5 V @ 4 A) but lower surge capacity; optimized for high-speed data, not high-energy transients. | Select for differential high-speed interfaces (e.g., HDMI, DisplayPort) where ultra-low capacitance outweighs peak power needs. |
Compared with SMAJ3.3A and TPD2E001DRYR, VGSOT03-G3-08 uniquely balances compact SOT-23 size, 540 W surge rating, and 3.3 V VRWM for cost-sensitive, space-limited industrial USB and sensor protection - offering higher energy handling than TPD2E001DRYR and smaller footprint than SMAJ3.3A.
Availability
VGSOT03-G3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, industrial HMI touch panels, and automotive body control modules requiring stable component supply across multi-year production cycles.
Supply support for VGSOT03-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 protection devices.
The VGSOT family was developed for high-reliability, single-line ESD protection in automotive, industrial, and medical applications where AEC-Q101 qualification, precise clamping, and compact SOT-23 packaging are mandatory.
FAQ
What is the exact reverse stand-off voltage (VRWM) of VGSOT03-G3-08?
The VGSOT03-G3-08 has a maximum reverse stand-off voltage (VRWM) of 3.3 V, verified per Vishay's datasheet Document Number 86326. At this voltage, reverse leakage remains ≤100 µA, ensuring minimal loading on 3.3 V signal lines during normal operation. This value is fixed for the VGSOT03 variant and confirmed in the ELECTRICAL CHARACTERISTICS table on page 5.
Does VGSOT03-G3-08 support bidirectional ESD protection?
No - VGSOT03-G3-08 is unidirectional. Its BiAs-mode operation provides asymmetric clamping: low forward voltage (≤1.2 V) for negative transients and controlled reverse breakdown (≥4 V) for positive transients. True bidirectional behavior requires separate devices like VGSOT03-G3-08's sibling VGSOT22, which protects two lines with symmetrical characteristics.
Is VGSOT03-G3-08 AEC-Q101 qualified?
Yes - VGSOT03-G3-08 is AEC-Q101 qualified and rated Class H3B for human body model (HBM) with >8 kV tolerance. This qualification is explicitly stated in the FEATURES section of the Vishay datasheet (Rev. 1.1, Feb 2025) and confirmed in the PACKAGE DATA table for VGSOT03.
What is the pin 2 function on VGSOT03-G3-08?
Pin 2 of VGSOT03-G3-08 is a no-connect (NC) terminal - internally unconnected with no bond wire or die attachment. The Vishay datasheet specifies this in the SOT-23 pinout diagram (page 10) and package drawings; it must remain unconnected on PCB layout to avoid parasitic coupling or unintended current paths.
Can VGSOT03-G3-08 be used on 5 V logic lines?
No - VGSOT03-G3-08 is not suitable for 5 V logic lines. Its 3.3 V VRWM means sustained operation above that voltage causes excessive leakage (>100 µA) and risks premature breakdown. For 5 V systems, use VGSOT05-G3-08 (VRWM = 5 V) or VGSOT08-G3-08 (VRWM = 8 V), both in the same SOT-23 family and documented on pages 5–6 of the datasheet.
VGSOT03-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):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 4V
- Voltage - Clamping (Max) @ Ipp:
- 12.3V
- Current - Peak Pulse (10/1000µs):
- 44A (8/20µs)
- Power - Peak Pulse:
- 540W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 460pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VGSOT03-G3-08 FAQ
1.How can I place an order for VGSOT03-G3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VGSOT03-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 VGSOT03-G3-08 reliable?
The price and inventory of VGSOT03-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 VGSOT03-G3-08 is usually 5 days.
3.What payment methods are accepted for VGSOT03-G3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VGSOT03-G3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VGSOT03-G3-08?
VGSOT03-G3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VGSOT03-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 VGSOT03-G3-08?
For technical support, including VGSOT03-G3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VGSOT03-G3-08 requirements.
6.How does Aetrix verify that VGSOT03-G3-08 is sourced from the original manufacturer or authorized distributors?
All VGSOT03-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 VGSOT03-G3-08 meets industry standards.
7.What is the process for return or replacement of VGSOT03-G3-08?
All VGSOT03-G3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VGSOT03-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 VGSOT03-G3-08 part is unused and in its original packaging.
Return procedure for VGSOT03-G3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VGSOT03-G3-08 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
