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Vishay General Semiconductor - Diodes Division VGSOT08C-HG3-08
- Part No.:
- VGSOT08C-HG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VGSOT08C-HG3-08.pdf
- Description:
- TVS DIODE 8VWM 19.2VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:3,799
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Product details
Overview
VGSOT08C-HG3-08 from Vishay Semiconductors is a two-line unidirectional ESD protection diode in SOT-23 package, featuring common-anode dual-channel configuration, 8 V maximum reverse working voltage (VRWM), ±30 kV IEC 61000-4-2/ISO 10605 ESD immunity, and 500 W peak pulse power (8/20 μs). It protects high-speed data lines such as USB 2.0 and HDMI interfaces against electrostatic discharge.
For engineers reviewing the VGSOT08C-HG3-08 datasheet, VGSOT08C-HG3-08 pinout, VGSOT08C-HG3-08 application, or VGSOT08C-HG3-08 equivalent, this page delivers verified electrical characteristics, BiAs/BiSy dual-mode operation details, SOT-23 terminal mapping, AEC-Q101 qualification status, and real-world ESD clamping behavior under 28 A 8/20 μs transients.
Technical Context
The VGSOT08C-HG3-08 implements a dual-diode common-anode structure enabling BiAs-MODE (bidirectional asymmetrical) protection: positive transients clamp via reverse breakdown (VBR = 9–11 V), negative transients clamp via forward conduction (VF ≤ 1.2 V at 1 A). Its 175–250 pF line capacitance at 0 V supports signal integrity in <100 Mbps interfaces.
In BiSy-MODE (single-line symmetrical), pins 1 and 2 form a bidirectional path with VRWM = 8.5 V, VBR = 9.5–11.7 V, and clamping voltage VC = 11.7–22.2 V at 28 A - leveraging matched diode pairs for balanced positive/negative transient suppression without grounding pin 3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | Two-line unidirectional ESD protection diode, common-anode dual-channel |
| VRWM | 8 V - maximum continuous reverse voltage before leakage exceeds 5 μA; sets operating margin for 5 V logic/data lines |
| VBR (IR = 1 mA) | 9–11 V - reverse breakdown threshold defining clamping onset; ensures robust margin above VRWM |
| VC @ IPPM = 28 A (8/20 μs) | 14.4–18 V - peak clamping voltage during worst-case surge; limits downstream IC stress |
| CD @ VR = 0 V, 1 MHz | 175–250 pF - line-to-ground capacitance affecting signal rise time and bandwidth in high-speed links |
| ESD Immunity | ±30 kV contact/air discharge per IEC 61000-4-2 and ISO 10605 - meets industrial and automotive ESD robustness requirements |
| AEC-Q101 Qualified | Yes - qualified for automotive applications including infotainment and body electronics |
Pinout & Package
SOT-23 plastic surface-mount package (JEDEC TO-236AB), 9.2 mg weight, UL 94 V-0 flammability rating, MSL level 1, peak reflow temperature 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Connects to protected signal line L1 in BiAs mode; forms symmetrical path with Pin 2 in BiSy mode |
| Pin 2 | Anode of Diode 2 | Connects to protected signal line L2 in BiAs mode; paired with Pin 1 for single-line bidirectional protection |
| Pin 3 | Common Cathode | Must be grounded in BiAs mode; left floating in BiSy mode to enable symmetrical clamping |
Key Features
| Feature | Design Value |
|---|---|
| BiAs-MODE operation | Enables independent protection of two data lines (L1/L2) with shared ground return, reducing component count vs. discrete diodes |
| BiSy-MODE operation | Supports single-line bidirectional protection by using Pins 1–2 only - eliminates need for external series resistors or layout changes |
| Low forward clamping | VF ≤ 1.2 V at 1 A ensures negative transients clamp near ground, preserving logic low-level integrity |
| AEC-Q101 qualification | Validated for automotive environments including temperature cycling (-55 °C to +150 °C) and mechanical shock |
| e3 Sn terminations | RoHS-compliant matte tin plating ensures solderability and intermetallic reliability in lead-free assembly |
Applications
| USB 2.0 Interface Protection | HDMI Data Lane Protection |
|---|---|
Use Scenario: Protecting D+ and D− differential pair in USB 2.0 host/device ports against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Dual-channel unidirectional clamp placed between connector and PHY, with Pin 3 grounded. Use Value: 8 V VRWM matches 3.3 V USB I/O voltage; 175–250 pF capacitance avoids signal integrity degradation at 480 Mbps. |
Use Scenario: Safeguarding TMDS data channels in HDMI 1.4 receivers against contact discharge during cable mating. IC Role / Device Role / Timing Role: Common-anode ESD array suppressing transients on each data lane while sharing ground path. Use Value: ±30 kV ESD immunity exceeds IEC 61000-4-2 Level 4; 14.4–18 V clamping at 28 A prevents HDMI PHY latch-up. |
| Automotive Infotainment Display Link | Industrial RS-485 Transceiver Port |
Use Scenario: Shielding LVDS or FPD-Link II video data lines connecting head unit to display in automotive cabins. IC Role / Device Role / Timing Role: Dual-line protector deployed per differential pair, leveraging AEC-Q101 qualification for under-hood reliability. Use Value: -55 °C to +150 °C operating range supports extended temperature environments; 5 μA IR at 8 V minimizes standby power loss. |
Use Scenario: Adding secondary ESD protection to RS-485 transceiver A/B lines in factory automation gateways. IC Role / Device Role / Timing Role: BiSy-mode configuration (Pins 1–2 only) provides symmetrical clamping without requiring ground connection at remote nodes. Use Value: 8.5 V VRWM aligns with ±7 V RS-485 common-mode range; 11.7–22.2 V clamping preserves receiver input thresholds. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Single-line unidirectional TVS; 8.0 V VRWM, 12.5 V VC @ 22.5 A; SMC package (larger footprint, higher inductance) | Requires two devices for dual-line protection; no common-cathode integration; unsuitable for space-constrained layouts | Select when board area permits discrete placement and BiAs/BiSy flexibility is unnecessary |
| TPD2E001DRSR | Two-line unidirectional ESD array; 5 V VRWM, 15 pF CD @ 0 V; 0.65 mm pitch QFN-6 package | Lower capacitance suits >480 Mbps interfaces (e.g., USB 3.0); incompatible with 8 V rail systems due to lower VRWM | Select for high-speed digital interfaces where low capacitance outweighs voltage rating needs |
Compared with SMAJ8.0A and TPD2E001DRSR, the VGSOT08C-HG3-08 uniquely combines dual-line common-anode topology, 8 V VRWM, ±30 kV ESD rating, and SOT-23 compactness - making it optimal for cost-sensitive, space-constrained 5–8 V data line protection where integrated dual-channel operation is required.
Availability
VGSOT08C-HG3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment display links, and industrial RS-485 transceiver ports requiring stable component supply across production lifecycles.
Supply support for VGSOT08C-HG3-08 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 designs and manufactures discrete semiconductors, including diodes, MOSFETs, and ESD protection devices, with emphasis on reliability, precision, and automotive-grade qualification.
The VGSOTxxC family targets high-density ESD protection for data and signal lines in automotive, industrial, and consumer electronics - delivering dual-mode (BiAs/BiSy) flexibility within standard SOT-23 footprints.
FAQ
What is the maximum reverse working voltage (VRWM) of the VGSOT08C-HG3-08?
The VGSOT08C-HG3-08 has a maximum reverse working voltage (VRWM) of 8 V, specified at IR ≤ 5 μA. This value defines the highest continuous DC or peak AC voltage the device can withstand in reverse bias without significant leakage, making it suitable for protecting 5 V and 8 V logic/data lines while maintaining margin against transient overvoltage.
How does the VGSOT08C-HG3-08 support both BiAs-MODE and BiSy-MODE configurations?
The VGSOT08C-HG3-08 supports BiAs-MODE (dual-line unidirectional) by grounding Pin 3 and connecting Pins 1 and 2 to separate signal lines (L1/L2); it supports BiSy-MODE (single-line bidirectional) by leaving Pin 3 unconnected and using only Pins 1 and 2 as a symmetrical clamp pair. Both modes are enabled by its internal common-anode dual-diode structure.
Is the VGSOT08C-HG3-08 qualified to AEC-Q101 standards?
Yes, the VGSOT08C-HG3-08 is AEC-Q101 qualified, confirming its suitability for automotive applications. This qualification covers stress tests including temperature cycling, humidity bias, and ESD - validating performance across -55 °C to +150 °C junction temperatures and ensuring reliability in infotainment, ADAS, and body electronics systems.
What is the clamping voltage (VC) of the VGSOT08C-HG3-08 under a 28 A 8/20 μs surge?
Under a 28 A 8/20 μs peak pulse current, the VGSOT08C-HG3-08 exhibits a reverse clamping voltage (VC) of 14.4–18 V. This value represents the maximum voltage seen at the protected line during worst-case surge conditions and is critical for ensuring downstream ICs remain within their absolute maximum ratings.
What is the typical line-to-ground capacitance of the VGSOT08C-HG3-08 at 0 V bias?
The VGSOT08C-HG3-08 has a typical line-to-ground capacitance (CD) of 175–250 pF measured at 0 V reverse bias and 1 MHz. This capacitance directly impacts signal integrity in high-speed interfaces; values in this range are optimized for USB 2.0 and HDMI 1.4 data rates while balancing ESD robustness and bandwidth preservation.
VGSOT08C-HG3-08 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:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 8V (Max)
- Voltage - Breakdown (Min):
- 9V
- Voltage - Clamping (Max) @ Ipp:
- 18V
- Current - Peak Pulse (10/1000µs):
- 28A (8/20µs)
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 175pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VGSOT08C-HG3-08 FAQ
1.How can I place an order for VGSOT08C-HG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VGSOT08C-HG3-08 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 VGSOT08C-HG3-08 reliable?
The price and inventory of VGSOT08C-HG3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VGSOT08C-HG3-08 is usually 5 days.
3.What payment methods are accepted for VGSOT08C-HG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VGSOT08C-HG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VGSOT08C-HG3-08?
VGSOT08C-HG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VGSOT08C-HG3-08 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 VGSOT08C-HG3-08?
For technical support, including VGSOT08C-HG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VGSOT08C-HG3-08 requirements.
6.How does Aetrix verify that VGSOT08C-HG3-08 is sourced from the original manufacturer or authorized distributors?
All VGSOT08C-HG3-08 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 VGSOT08C-HG3-08 meets industry standards.
7.What is the process for return or replacement of VGSOT08C-HG3-08?
All VGSOT08C-HG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VGSOT08C-HG3-08, 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 VGSOT08C-HG3-08 part is unused and in its original packaging.
Return procedure for VGSOT08C-HG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VGSOT08C-HG3-08 Tags
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