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Vishay General Semiconductor - Diodes Division VGSOT15C-HG3-18
- Part No.:
- VGSOT15C-HG3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VGSOT15C-HG3-18.pdf
- Description:
- TVS DIODE 15VWM 28.8VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,182
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Product details
Overview
VGSOT15C-HG3-18 from Vishay Semiconductors is a two-line unidirectional ESD protection diode in SOT-23 package, featuring common-anode dual-channel configuration, 15 V reverse stand-off voltage (VRWM), ±30 kV IEC 61000-4-2 ESD immunity, and 450 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 VGSOT15C-HG3-18 datasheet, VGSOT15C-HG3-18 pinout, VGSOT15C-HG3-18 application, or VGSOT15C-HG3-18 equivalent, key selection criteria include its 15 V VRWM rating, 23.5 V max clamping voltage at 15.5 A surge, 100 pF line capacitance at 0 V bias, AEC-Q101 qualification, and SOT-23 footprint compatibility with space-constrained PCB layouts.
Technical Context
The VGSOT15C-HG3-18 implements BiAs-MODE (Bidirectional Asymmetrical) protection when pins 1 and 2 connect to signal lines and pin 3 to ground - enabling independent forward and reverse clamping paths with VF ≈ 1.2 V and VC ≤ 28.8 V. Its dual-diode common-anode topology allows simultaneous protection of two data lines without cross-talk coupling.
In BiSy-MODE (single-line bidirectional symmetrical operation), pins 1 and 2 form a bipolar clamp with pin 3 left unconnected, delivering matched ±26.6 V clamping at 15.5 A while maintaining 50–60 pF capacitance - suitable for RS-485 or CAN bus termination where polarity symmetry is required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 15 V - maximum continuous operating voltage before clamping begins; sets upper limit for protected interface (e.g., 12 V automotive data buses) |
| VBR (min) | 16.5 V - guaranteed reverse breakdown threshold at 1 mA; ensures reliable turn-on above system operating voltage |
| VC @ IPPM | 23.5 V max - peak clamping voltage during 15.5 A 8/20 μs surge; defines worst-case voltage seen by downstream ICs |
| CD @ 0 V | 100 pF - low line capacitance preserves signal integrity on 480 Mbps USB 2.0 channels with minimal rise-time degradation |
| ESD immunity | ±30 kV contact/air - exceeds IEC 61000-4-2 Level 4 and ISO 10605 requirements for industrial and automotive end-equipment |
| TJ max | +150 °C - supports under-hood automotive applications and extended industrial temperature environments |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including HTOL, temperature cycling, and ESD stress testing |
Pinout & Package
SOT-23 package (JEDEC TO-236AB), 3-pin surface-mount, 9.2 mg weight, UL 94 V-0 molding compound, MSL level 1, peak reflow ≤ 260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Connects to first protected signal line (L1); forms clamping path to ground via shared cathode (Pin 3) |
| Pin 2 | Anode of Diode 2 | Connects to second protected signal line (L2); enables dual-line protection with single device |
| Pin 3 | Common Cathode | Must be connected to system ground; provides return path for both ESD current transients |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line unidirectional protection | Simultaneously safeguards two independent data lines (e.g., D+ and D−) with isolated clamping paths and no inter-channel leakage |
| Bidirectional asymmetrical (BiAs) mode | Clamps positive transients at ~23.5 V and negative transients near ground (VF ≤ 2.2 V), optimizing protection for DC-biased interfaces |
| Low 100 pF capacitance | Minimizes signal distortion on high-speed serial links up to 480 Mbps without requiring equalization or layout compensation |
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HBM > 8 kV and robust thermal cycling performance |
| e3 Sn terminations | Lead-free, RoHS-compliant matte tin plating ensures solderability and long-term intermetallic stability in automated assembly |
Applications
| USB 2.0 Interface Protection | HDMI Data Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− differential pair in portable media devices against user-handling ESD events. IC Role / Device Role / Timing Role: Two-line unidirectional ESD clamp placed immediately before USB transceiver IC input pins. Use Value: 100 pF capacitance avoids signal integrity loss at 480 Mbps; 23.5 V clamping prevents damage to 3.3 V tolerant PHY circuitry. | Use Scenario: Safeguarding TMDS clock and data channels in automotive infotainment head units exposed to harsh ESD environments. IC Role / Device Role / Timing Role: Dual-channel ESD suppressor mounted at HDMI connector entry point with common-cathode grounding. Use Value: AEC-Q101 qualification ensures reliability in vehicle cabin; ±30 kV immunity meets ISO 10605 requirements for 12 V systems. |
| RS-485 Transceiver Protection | Automotive LIN Bus Node |
Use Scenario: Shielding half-duplex RS-485 transceivers in factory automation controllers from cable-discharge events. IC Role / Device Role / Timing Role: BiSy-mode configuration (pins 1–2 across A/B lines, pin 3 open) providing symmetrical ±26.6 V clamping. Use Value: 50–60 pF capacitance maintains signal fidelity over 10 Mbps; 15.5 A surge rating handles induced lightning surges. | Use Scenario: Protecting LIN slave nodes (e.g., door modules) from ESD during service or assembly in 12 V automotive networks. IC Role / Device Role / Timing Role: Unidirectional BiAs-mode clamp on LIN bus line with pin 3 grounded and pin 1 connected to bus. Use Value: 15 V VRWM matches typical LIN operating range; +150 °C TJ max supports under-dash mounting locations. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A | Single-line, 15 V unidirectional TVS; 400 W PPPM; SMC package (larger footprint) | Requires two devices for dual-line protection; higher 1.5 nF junction capacitance limits speed | Select when board space permits larger package and only one line needs protection |
| TPD2E001DRSR | Two-line, 5 V VRWM; 0.8 pF per line; 30 kV ESD; 6-pin SON package | Optimized for ultra-high-speed USB 3.0/PCIe; insufficient for 12–15 V automotive data buses | Select for sub-5 V logic interfaces where ultra-low capacitance is critical |
Compared with SMAJ15A and TPD2E001DRSR, the VGSOT15C-HG3-18 uniquely balances 15 V VRWM, dual-line integration in SOT-23, and automotive-grade reliability - making it optimal for space-constrained 12 V data bus protection where both voltage margin and footprint efficiency matter.
Availability
VGSOT15C-HG3-18 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial RS-485 networks, and consumer USB peripheral designs requiring stable component supply and long-term production continuity.
Supply support for VGSOT15C-HG3-18 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 passive components for automotive, industrial, and computing markets.
The VGSOTxxC family was engineered specifically for high-density, dual-line ESD protection in automotive and industrial data interfaces - emphasizing low capacitance, AEC-Q101 compliance, and SOT-23 scalability across 3.3 V to 36 V VRWM ratings.
FAQ
What is the maximum clamping voltage of VGSOT15C-HG3-18 during an ESD event?
The VGSOT15C-HG3-18 exhibits a maximum reverse clamping voltage (VC) of 28.8 V at its rated peak pulse current of 15.5 A (8/20 μs waveform), measured per IEC 61000-4-5. This value ensures downstream 15 V-rated ICs remain within safe operating limits during transient suppression. The forward clamping voltage remains ≤2.2 V under the same condition, preserving ground reference integrity.
Can VGSOT15C-HG3-18 protect both USB D+ and D− lines simultaneously?
Yes, the VGSOT15C-HG3-18 is explicitly designed for dual-line protection: Pin 1 connects to D+, Pin 2 to D−, and Pin 3 to ground. Its common-anode architecture delivers independent, low-capacitance (100 pF) clamping on each line without crosstalk - meeting USB 2.0 signal integrity requirements up to 480 Mbps while maintaining ±30 kV ESD immunity.
Is VGSOT15C-HG3-18 qualified for automotive applications?
Yes, VGSOT15C-HG3-18 is AEC-Q101 qualified and rated for operation from −55 °C to +150 °C junction temperature. It meets human body model (HBM) Class H3B (>8 kV) and passes all stress tests required for automotive electronics, including temperature cycling, high-temperature operating life, and ESD robustness per ISO 10605 and IEC 61000-4-2.
How does the BiAs-MODE configuration differ from BiSy-MODE in VGSOT15C-HG3-18?
In BiAs-MODE (pins 1 & 2 to signals, pin 3 grounded), VGSOT15C-HG3-18 provides asymmetrical clamping: positive transients clamp at ≤28.8 V, negative transients clamp near ground (≤2.2 V). In BiSy-MODE (pin 3 open, pins 1–2 across one line), it delivers symmetrical ±26.6 V clamping - ideal for bidirectional buses like RS-485 where polarity balance matters.
What is the typical junction capacitance of VGSOT15C-HG3-18 at zero bias?
The typical junction capacitance (CD) of VGSOT15C-HG3-18 is 100 pF at 0 V reverse bias and 1 MHz frequency, with a maximum of 120 pF. At 7.5 V bias, capacitance drops to 43 pF - enabling clean signal transmission on high-speed digital interfaces while minimizing loading effects on source drivers.
VGSOT15C-HG3-18 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):
- 15V (Max)
- Voltage - Breakdown (Min):
- 16.5V
- Voltage - Clamping (Max) @ Ipp:
- 28.8V
- Current - Peak Pulse (10/1000µs):
- 15.5A (8/20µs)
- Power - Peak Pulse:
- 450W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 100pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VGSOT15C-HG3-18 FAQ
1.How can I place an order for VGSOT15C-HG3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VGSOT15C-HG3-18 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 VGSOT15C-HG3-18 reliable?
The price and inventory of VGSOT15C-HG3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VGSOT15C-HG3-18 is usually 5 days.
3.What payment methods are accepted for VGSOT15C-HG3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VGSOT15C-HG3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VGSOT15C-HG3-18?
VGSOT15C-HG3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VGSOT15C-HG3-18 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 VGSOT15C-HG3-18?
For technical support, including VGSOT15C-HG3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VGSOT15C-HG3-18 requirements.
6.How does Aetrix verify that VGSOT15C-HG3-18 is sourced from the original manufacturer or authorized distributors?
All VGSOT15C-HG3-18 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 VGSOT15C-HG3-18 meets industry standards.
7.What is the process for return or replacement of VGSOT15C-HG3-18?
All VGSOT15C-HG3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VGSOT15C-HG3-18, 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 VGSOT15C-HG3-18 part is unused and in its original packaging.
Return procedure for VGSOT15C-HG3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VGSOT15C-HG3-18 Tags
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