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Vishay General Semiconductor - Diodes Division VGSOT12C-HG3-08
- Part No.:
- VGSOT12C-HG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VGSOT12C-HG3-08.pdf
- Description:
- TVS DIODE 12VWM 26VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:7,795
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Product details
Overview
VGSOT12C-HG3-08 from Vishay Semiconductors is a two-line unidirectional ESD protection diode in SOT-23 package, featuring common-anode configuration, 12 V reverse stand-off voltage (VRWM), ±30 kV IEC 61000-4-2 ESD immunity, and 480 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 VGSOT12C-HG3-08 datasheet, VGSOT12C-HG3-08 pinout, VGSOT12C-HG3-08 application, or VGSOT12C-HG3-08 equivalent, key selection considerations include its dual-line BiAs-mode clamping behavior, low 115 pF line capacitance at 0 V, AEC-Q101 qualification, and compatibility with automated SMT assembly on consumer and automotive PCBs.
Technical Context
The VGSOT12C-HG3-08 implements a dual-channel, common-anode unidirectional ESD protection architecture optimized for BiAs-mode (Bidirectional Asymmetrical) operation: pins 1 and 2 connect to protected signal lines, pin 3 to ground. During positive transients, current flows through reverse-biased diodes to clamp at ~20.2 V (IPPM = 18.5 A); during negative transients, forward conduction limits clamping to ≤2.5 V.
It supports both BiAs-mode (two-line protection with ground reference) and BiSy-mode (single-line bidirectional protection with pin 3 floating), enabling flexible layout integration. Its 1 μA max reverse leakage at 12 V and 54 pF capacitance at 6 V VR enable use in 12 V-rated industrial sensor interfaces and CAN FD data lines without signal integrity degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | Two-line unidirectional ESD protection diode, common-anode configuration |
| VRWM | 12 V - maximum continuous working voltage before clamping initiates on each protected line |
| VBR (min) | 13.5 V - guaranteed reverse breakdown threshold ensures robust margin above VRWM |
| VC @ IPPM | 20.2 V (max) - peak clamping voltage during 18.5 A 8/20 μs surge, limiting IC stress |
| CD @ 0 V | 115 pF (typ) - low line capacitance preserves signal integrity in 480 Mbps USB 2.0 links |
| ESD Immunity | ±30 kV contact/air discharge per IEC 61000-4-2 and ISO 10605 - meets Level 4 system-level ESD requirements |
| AEC-Q101 | Qualified - validated for automotive under-hood and infotainment applications per stress test conditions |
Pinout & Package
SOT-23 package (JEDEC TO-236AB), 3-terminal surface-mount device with gull-wing leads, MSL level 1, 260 °C peak reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Connects to first protected signal line (L1); forms one half of common-anode dual-diode structure |
| Pin 2 | Anode of Diode 2 | Connects to second protected signal line (L2); enables simultaneous protection of differential or parallel data paths |
| Pin 3 | Common Cathode | Must be connected to system ground to enable BiAs-mode clamping; left floating for BiSy-mode single-line use |
Key Features
| Feature | Design Value |
|---|---|
| BiAs-mode operation | Enables asymmetric clamping (≤2.5 V negative / ≤20.2 V positive) for optimal protection of CMOS I/O with ground-referenced rails |
| Low 1 μA IR at VRWM | Minimizes standby power loss and avoids false triggering in battery-powered sensor nodes |
| 480 W PPPM (8/20 μs) | Withstands high-energy surges from IEC 61000-4-5 lightning-induced transients in industrial control cabinets |
| e3 Sn termination | RoHS-compliant matte tin plating ensures reliable solderability and long-term intermetallic stability |
| 150 °C TJ max | Supports operation in engine-control units and powertrain modules without thermal derating |
Applications
| USB 2.0 Interface Protection | HDMI Data Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 ports in automotive infotainment head units against ESD events during connector insertion. IC Role / Device Role / Timing Role: Dual-line unidirectional transient voltage suppressor placed directly at USB connector, referenced to chassis ground. Use Value: 115 pF line capacitance prevents signal rise-time degradation; ±30 kV ESD rating exceeds IEC 61000-4-2 Level 4 requirement. | Use Scenario: Safeguarding TMDS clock and data pairs in HDMI 1.4 receivers used in digital signage displays exposed to handling ESD. IC Role / Device Role / Timing Role: Common-anode ESD array suppressing fast transients on differential HDMI lanes while maintaining impedance matching. Use Value: 12 V VRWM aligns with HDMI receiver I/O voltage range; 20.2 V clamping voltage stays below absolute maximum ratings of downstream SerDes. |
| Automotive CAN FD Bus Protection | Industrial RS-485 Transceiver I/O |
Use Scenario: Shielding CAN FD high-speed (5 Mbps) bus lines in ADAS domain controllers from cable-discharge events and board-level ESD. IC Role / Device Role / Timing Role: Two-line ESD protector on CANH/CANL, grounded via pin 3, operating in BiAs mode to preserve common-mode noise rejection. Use Value: AEC-Q101 qualification confirms reliability under automotive temperature cycling; 1 μA leakage avoids bus bias shift. | Use Scenario: Protecting RS-485 transceiver A/B terminals in factory automation PLC I/O modules subjected to 4 kV EFT bursts and 8 kV contact ESD. IC Role / Device Role / Timing Role: Unidirectional clamp on differential bus lines, leveraging common-cathode grounding to minimize ground bounce during surge conduction. Use Value: 480 W peak pulse power handles repetitive surges per IEC 61000-4-4; 54 pF capacitance at 6 V VR maintains >12 Mbps data rate integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A | Single-line, 12 V unidirectional TVS; 400 W PPPM; SMC package (larger footprint) | Requires two devices for dual-line protection; higher parasitic inductance due to larger package | Select when board space allows discrete placement and lower cost per channel is prioritized over integration |
| TPD2E001DRSR | Two-line, 5.5 V VRWM; 0.8 pF typical CD; SC-70 package; not AEC-Q101 qualified | Better for high-speed USB 3.0 but insufficient for 12 V industrial buses; lacks automotive qualification | Select for ultra-low-capacitance consumer port protection where VRWM ≤ 5.5 V and AEC-Q101 is not required |
Compared with SMAJ12A and TPD2E001DRSR, VGSOT12C-HG3-08 uniquely delivers integrated dual-line protection in SOT-23 with AEC-Q101 validation, 12 V VRWM headroom for 12 V systems, and balanced clamping performance-making it optimal for space-constrained automotive and industrial data interfaces requiring certified reliability.
Availability
VGSOT12C-HG3-08 is available at Aetrix Electronics and suitable for automotive infotainment, industrial RS-485 networks, and consumer HDMI interface designs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for VGSOT12C-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 is a global leader in discrete semiconductors, specializing in high-reliability diodes, MOSFETs, optoelectronics, and protection devices for demanding industrial and automotive environments.
The VGSOTxxC family was designed specifically for compact, high-performance ESD protection of high-speed data lines in space-constrained applications, with emphasis on AEC-Q101 compliance, low capacitance, and dual-line integration.
FAQ
What is the maximum clamping voltage of VGSOT12C-HG3-08 during an 18.5 A ESD event?
The maximum clamping voltage (VC) of VGSOT12C-HG3-08 at IPPM = 18.5 A (8/20 μs waveform) is 26 V. This value represents the worst-case voltage seen by protected circuitry during a full-rated surge, ensuring downstream components remain within safe operating limits when the device conducts.
Can VGSOT12C-HG3-08 be used for bidirectional protection of a single data line?
Yes, VGSOT12C-HG3-08 supports BiSy-mode (bidirectional symmetrical) operation: connect pin 1 to the signal line and pin 2 to ground (or vice versa), leaving pin 3 unconnected. In this configuration, it delivers symmetrical clamping with 12.5 V VRWM and 23.4 V max VC at 18.5 A, suitable for single-ended interfaces like RS-232.
Is VGSOT12C-HG3-08 qualified to AEC-Q101, and what does that mean for automotive use?
Yes, VGSOT12C-HG3-08 is AEC-Q101 qualified. This certification verifies its reliability under accelerated stress tests-including temperature cycling, humidity bias HAST, and ESD-required for passive semiconductor components in automotive electronic systems, enabling use in powertrain, body control, and ADAS modules.
What is the reverse leakage current of VGSOT12C-HG3-08 at its rated VRWM of 12 V?
The reverse leakage current (IR) of VGSOT12C-HG3-08 is guaranteed ≤1 μA at VR = 12 V and Tamb = 25 °C. This ultra-low leakage minimizes power drain in always-on circuits and prevents unintended biasing of sensitive analog or digital inputs in battery-operated sensors and IoT edge nodes.
How does the capacitance of VGSOT12C-HG3-08 vary with applied reverse voltage?
VGSOT12C-HG3-08 exhibits voltage-dependent capacitance: 115–150 pF at 0 V VR, dropping to 54 pF at 6 V VR. This characteristic reduces effective line loading at operating bias, supporting high-speed protocols like USB 2.0 (480 Mbps) without compromising eye diagram integrity or jitter budget.
VGSOT12C-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):
- 12V (Max)
- Voltage - Breakdown (Min):
- 13.5V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 18.5A (8/20µs)
- Power - Peak Pulse:
- 480W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 115pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VGSOT12C-HG3-08 FAQ
1.How can I place an order for VGSOT12C-HG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VGSOT12C-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 VGSOT12C-HG3-08 reliable?
The price and inventory of VGSOT12C-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 VGSOT12C-HG3-08 is usually 5 days.
3.What payment methods are accepted for VGSOT12C-HG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VGSOT12C-HG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VGSOT12C-HG3-08?
VGSOT12C-HG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VGSOT12C-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 VGSOT12C-HG3-08?
For technical support, including VGSOT12C-HG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VGSOT12C-HG3-08 requirements.
6.How does Aetrix verify that VGSOT12C-HG3-08 is sourced from the original manufacturer or authorized distributors?
All VGSOT12C-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 VGSOT12C-HG3-08 meets industry standards.
7.What is the process for return or replacement of VGSOT12C-HG3-08?
All VGSOT12C-HG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VGSOT12C-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 VGSOT12C-HG3-08 part is unused and in its original packaging.
Return procedure for VGSOT12C-HG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VGSOT12C-HG3-08 Tags
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