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Vishay General Semiconductor - Diodes Division VGSOT36C-G3-18
- Part No.:
- VGSOT36C-G3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VGSOT36C-G3-18.pdf
- Description:
- TVS DIODE 36VWM 71VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:5,167
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Product details
Overview
VGSOT36C-G3-18 from Vishay Semiconductors is a two-line unidirectional ESD protection diode in SOT-23 package, featuring common-anode dual-channel configuration, 36 V maximum reverse working voltage (VRWM), ±30 kV IEC 61000-4-2 ESD immunity, and 400 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 VGSOT36C-G3-18 datasheet, VGSOT36C-G3-18 pinout, VGSOT36C-G3-18 application, or VGSOT36C-G3-18 equivalent, key selection criteria include VRWM = 36 V, clamping voltage ≤71 V at 5.6 A (8/20 μs), low 45–65 pF capacitance at 0 V bias, AEC-Q101 qualification, and SOT-23 footprint compatibility with space-constrained PCB layouts.
Technical Context
The VGSOT36C-G3-18 implements BiAs-MODE (Bidirectional Asymmetrical) protection when pins 1 and 2 connect to protected signal lines and pin 3 to ground-enabling independent forward clamping (~1.4 V) and reverse clamping (≤71 V). Its dual-diode common-anode topology allows asymmetric transient suppression optimized for DC-biased interfaces.
In BiSy-MODE (Bidirectional Symmetrical), it operates as a single-line protector with pins 1 and 2 forming the protected path and pin 3 left unconnected, delivering matched positive/negative clamping via series diode conduction-achieving VRWM = 36.5 V and VC ≤72 V at 5.6 A with 23–33 pF capacitance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 36 V - Maximum continuous reverse voltage before leakage exceeds 1 μA; sets upper limit for safe operation on 3.3 V/5 V/12 V/24 V signal rails. |
| VBR (min) | 39 V - Reverse breakdown voltage at 1 mA; ensures robust turn-on margin above VRWM for reliable ESD triggering. |
| VC @ IPPM | ≤71 V at 5.6 A (8/20 μs) - Peak clamping voltage during worst-case surge; determines maximum voltage seen by downstream ICs. |
| CD @ 0 V | 45–65 pF - Signal-line capacitance at zero bias; critical for preserving signal integrity in USB 2.0 (≤60 pF requirement) and HDMI DDC lines. |
| ESD immunity | ±30 kV contact/air (IEC 61000-4-2 & ISO 10605) - Meets Level 4 industrial and automotive ESD robustness standards. |
| TJ max | +150 °C - Enables use in under-hood automotive modules and industrial enclosures without derating. |
| PPPM (8/20 μs) | 400 W - Peak pulse power handling capacity; defines survivability against lightning-induced surges per IEC 61000-4-5. |
Pinout & Package
SOT-23 package (JEDEC TO-236AB), 3-pin, e3 Sn-plated terminations, MSL level 1, 9.2 mg weight, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Anode of Diode 1 | Connects to first protected signal line (L1); forms one half of dual-channel ESD path to ground. |
| Pin 2 | Anode of Diode 2 | Connects to second protected signal line (L2); shares cathode (Pin 3) for common-ground configuration. |
| Pin 3 | Common Cathode | Must be connected to system ground; provides return path for both ESD current channels in BiAs-MODE. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line unidirectional protection | Simultaneously safeguards two independent data lines (e.g., USB D+/D−) with shared ground reference and minimal layout area. |
| BiAs-MODE asymmetry | Clamps negative transients near ground (VF ≤1.4 V) while limiting positive surges to ≤71 V-ideal for DC-biased interfaces like RS-485 or CAN FD. |
| AEC-Q101 qualified | Validated for automotive applications including infotainment, ADAS camera links, and body control modules requiring extended temperature and reliability compliance. |
| Low 23–33 pF BiSy capacitance | Enables single-line bidirectional protection of high-speed buses (e.g., I²C, SMBus) without violating timing or rise-time specifications. |
| Parallelable architecture | Two VGSOT36C-G3-18 units can be paralleled to double IPPM (to 11.2 A) and halve effective clamping impedance-reducing VC by up to 15 %. |
Applications
| USB 2.0 Interface Protection | HDMI DDC Channel Protection |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines from ESD events during hot-plug insertion in portable docking stations. IC Role / Device Role / Timing Role: Dual-channel transient voltage suppressor placed directly at connector, operating in BiAs-MODE with Pin 3 grounded. Use Value: 45–65 pF capacitance preserves 480 Mbps signaling integrity; ±30 kV ESD rating exceeds IEC 61000-4-2 Level 4 requirements. | Use Scenario: Safeguarding HDMI Display Data Channel (DDC) SDA/SCL lines against user-handling ESD in home theater receivers. IC Role / Device Role / Timing Role: Two-line ESD clamp with common cathode, installed adjacent to HDMI receptacle to minimize trace inductance. Use Value: VRWM = 36 V accommodates DDC's 3.3–5 V operating range; low leakage (<1 μA) prevents bus contention or pull-up loading. |
| Automotive Camera Link (FPD-Link III) | Industrial RS-485 Transceiver Protection |
Use Scenario: Shielding FPD-Link III serial video and control lines between ADAS camera and ECU in harsh automotive environments. IC Role / Device Role / Timing Role: Unidirectional dual-diode array deployed per differential pair, leveraging AEC-Q101 qualification and TJ = −55 to +150 °C operation. Use Value: 400 W peak pulse power withstands load-dump induced transients; 36 V VRWM matches typical camera supply rail headroom. | Use Scenario: Protecting RS-485 transceiver A/B terminals from ESD and fast transients in factory automation PLC I/O modules. IC Role / Device Role / Timing Role: Common-anode dual TVS used in BiAs-MODE to clamp positive surges on A line and negative surges on B line to ground. Use Value: Asymmetric clamping (≤1.4 V negative, ≤71 V positive) maintains common-mode noise rejection while limiting differential overvoltage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J36A | Single-line, 36 V unidirectional TVS; 600 W PPPM (8/20 μs); SMC package (larger than SOT-23). | Requires two devices for dual-line protection; higher parasitic inductance limits high-speed performance. | Select when higher surge rating is needed and board space permits larger SMC footprint. |
| TPD2E001DRSR | Two-line, 5.5 V VRWM; 0.8 pF/channel; SC-70 package; integrated ESD protection for USB 2.0. | Optimized for low-capacitance <10 Mbps interfaces; insufficient VRWM for 24 V industrial lines. | Select for ultra-high-speed, low-voltage data lines where sub-1 pF capacitance is mandatory. |
Compared with SMA6J36A and TPD2E001DRSR, the VGSOT36C-G3-18 uniquely balances dual-line integration, 36 V VRWM, SOT-23 compactness, and ±30 kV ESD immunity-making it optimal for space-constrained 24 V industrial and automotive data links where both voltage headroom and layout density matter.
Availability
VGSOT36C-G3-18 is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial RS-485 networks, and consumer HDMI interface designs requiring stable component supply and long-term production continuity.
Supply support for VGSOT36C-G3-18 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 designed specifically for compact, high-performance ESD protection of multi-line data interfaces-including USB, HDMI, FPD-Link, and RS-485-where low capacitance, precise VRWM matching, and AEC-Q101 compliance are essential.
FAQ
What is the maximum reverse working voltage (VRWM) of the VGSOT36C-G3-18?
The VGSOT36C-G3-18 has a maximum reverse working voltage (VRWM) of 36 V, verified per Vishay's Electrical Characteristics table for VGSOT36C (Rev. 1.1, p.8). This value defines the highest continuous DC or peak AC voltage the device blocks before leakage exceeds 1 μA, making it suitable for 24 V industrial signal lines and automotive subsystems with adequate headroom.
Does the VGSOT36C-G3-18 support bidirectional ESD protection?
Yes-the VGSOT36C-G3-18 supports bidirectional protection in two distinct modes: BiAs-MODE (asymmetrical, using all three pins with Pin 3 grounded) for differential or DC-biased lines, and BiSy-MODE (symmetrical, using only Pins 1 and 2 with Pin 3 open) for single-ended bipolar signals. Both modes deliver ±30 kV ESD immunity per IEC 61000-4-2.
What is the clamping voltage of the VGSOT36C-G3-18 at its rated peak pulse current?
At its rated 8/20 μs peak pulse current of 5.6 A, the VGSOT36C-G3-18 exhibits a maximum reverse clamping voltage (VC) of 71 V, as specified in the "ELECTRICAL CHARACTERISTICS VGSOT36C" table (Rev. 1.1, p.8). This value ensures downstream ICs see no more than 71 V during worst-case ESD events.
Is the VGSOT36C-G3-18 qualified for automotive applications?
Yes-the VGSOT36C-G3-18 is AEC-Q101 qualified, as confirmed in the "FEATURES" section (p.1) and "PACKAGE DATA" table (p.2) of the Vishay datasheet (Doc. #86325, Rev. 1.1). It meets stress test requirements for temperature cycling, humidity, mechanical shock, and ESD, enabling use in automotive infotainment, camera links, and body electronics.
What is the typical capacitance of the VGSOT36C-G3-18 at zero bias?
The typical capacitance of the VGSOT36C-G3-18 at 0 V reverse bias and 1 MHz is 45–65 pF, per the "ELECTRICAL CHARACTERISTICS VGSOT36C" table (Rev. 1.1, p.8). This low, well-characterized capacitance enables reliable protection of USB 2.0 and HDMI DDC lines without degrading signal edge rates or causing timing violations.
VGSOT36C-G3-18 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):
- 36V (Max)
- Voltage - Breakdown (Min):
- 39V
- Voltage - Clamping (Max) @ Ipp:
- 71V
- Current - Peak Pulse (10/1000µs):
- 5.6A (8/20µs)
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 45pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VGSOT36C-G3-18 FAQ
1.How can I place an order for VGSOT36C-G3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VGSOT36C-G3-18 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 VGSOT36C-G3-18 reliable?
The price and inventory of VGSOT36C-G3-18 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VGSOT36C-G3-18 is usually 5 days.
3.What payment methods are accepted for VGSOT36C-G3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VGSOT36C-G3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VGSOT36C-G3-18?
VGSOT36C-G3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VGSOT36C-G3-18 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 VGSOT36C-G3-18?
For technical support, including VGSOT36C-G3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VGSOT36C-G3-18 requirements.
6.How does Aetrix verify that VGSOT36C-G3-18 is sourced from the original manufacturer or authorized distributors?
All VGSOT36C-G3-18 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 VGSOT36C-G3-18 meets industry standards.
7.What is the process for return or replacement of VGSOT36C-G3-18?
All VGSOT36C-G3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VGSOT36C-G3-18, 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 VGSOT36C-G3-18 part is unused and in its original packaging.
Return procedure for VGSOT36C-G3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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