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Vishay General Semiconductor - Diodes Division VGSOT05-G3-18
- Part No.:
- VGSOT05-G3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VGSOT05-G3-18.pdf
- Description:
- TVS DIODE 5VWM 16VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:8,533
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Product details
Overview
VGSOT05-G3-18 from Vishay Semiconductors is a unidirectional single-line ESD protection diode in SOT-23 package, designed for high-reliability signal line protection in automotive and industrial interfaces. It delivers ±30 kV IEC 61000-4-2/ISO 10605 ESD immunity, 5 V reverse stand-off voltage (VRWM), 36 A peak pulse current (8/20 μs), and 500 W peak pulse power - enabling robust transient suppression on USB, CAN, or sensor I/O lines.
For engineers reviewing the VGSOT05-G3-18 datasheet, VGSOT05-G3-18 pinout, VGSOT05-G3-18 application, or VGSOT05-G3-18 equivalent, this device supports AEC-Q101 qualified designs requiring low-leakage (<10 μA at VR = 5 V), bidirectional asymmetrical clamping (BiAs mode), and tight capacitance control (279–350 pF at 0 V) for high-speed data integrity.
Technical Context
The VGSOT05-G3-18 implements BiAs-MODE (Bidirectional Asymmetrical) protection: pin 1 grounded, pin 3 connected to the protected line. During positive transients, it conducts above VBR (6–8 V) with reverse clamping up to 14 V at 36 A; during negative transients, it forward-clamps near ground (VF ≤ 1.2 V at 1 A, ≤3.9 V at 36 A).
Its SOT-23 package features MSL level 1 moisture sensitivity, UL 94 V-0 molding compound, and 9.2 mg mass. The device operates from –55 °C to +150 °C junction temperature and meets AEC-Q101 qualification for automotive under-hood applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 5 V - maximum continuous operating voltage before conduction; sets upper limit for safe signal swing on protected line |
| VBR (IR = 1 mA) | 6–8 V - precise breakdown threshold triggering clamping; ensures fast response to overvoltage events |
| VC (IPPM = 36 A, 8/20 μs) | 11–14 V - peak clamping voltage under worst-case surge; defines maximum stress seen by downstream IC |
| IR (at VR = 5 V) | ≤10 μA - ultra-low leakage preserves signal integrity and battery life in always-on circuits |
| CD (VR = 0 V, 1 MHz) | 279–350 pF - controlled capacitance minimizes signal distortion on high-speed lines like USB 2.0 |
| ESD Immunity | ±30 kV contact/air discharge per IEC 61000-4-2 & ISO 10605 - exceeds Level 4 system-level ESD requirements |
| PPP (8/20 μs) | 500 W - energy-handling capability sufficient for IEC 61000-4-5 surge events in industrial environments |
Pinout & Package
SOT-23 package: 3-pin, surface-mount, gull-wing leads; 2.9 mm × 1.3 mm footprint; 0.95 mm height; RoHS-compliant, matte tin (e3) terminations.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground (Anode common) | Low-inductance return path for transient current; must be connected to solid system ground plane |
| Pin 2 | No connection (NC) | Internal die pad; electrically isolated - no PCB trace or thermal pad required |
| Pin 3 | Protected Line (Cathode) | Input/output node for signal/data line; clamping occurs between Pin 3 and Pin 1 during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| BiAs-MODE clamping | Asymmetric forward/reverse clamping enables tighter negative-side suppression (≤1.2 V) while maintaining 5 V VRWM for signal headroom |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress - suitable for ADAS sensor interfaces |
| e3 Sn termination | Lead-free matte tin plating ensures solderability and long-term intermetallic stability under thermal cycling |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/60 % RH - eliminates bake requirements prior to reflow assembly |
| UL 94 V-0 molding | Flame-retardant epoxy compound meets safety standards for enclosed industrial and automotive enclosures |
Applications
| Automotive Sensor Interface | Industrial RS-485 Transceiver Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., pressure, temperature) in engine control units against ESD and load dump-induced transients. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed between sensor output and microcontroller ADC input. Use Value: Maintains <10 μA leakage at 5 V to avoid sensor offset error; clamps 36 A surges to ≤14 V, preserving ADC input stage integrity. |
Use Scenario: Safeguarding RS-485 transceiver I/O pins in factory automation PLCs exposed to cable ESD and inductive switching noise. IC Role / Device Role / Timing Role: Line-side ESD clamp on differential A/B bus lines, mounted adjacent to connector. Use Value: 279–350 pF capacitance avoids signal rise-time degradation on 10 Mbps RS-485; ±30 kV ESD rating exceeds IEC 61000-4-2 Level 4. |
| USB 2.0 Data Line Protection | Automotive Infotainment Display Interface |
Use Scenario: Shielding D+/D− lines of USB 2.0 ports in vehicle infotainment head units from user-port ESD events. IC Role / Device Role / Timing Role: Single-line unidirectional protector per data line, placed immediately after USB connector. Use Value: Low 279–350 pF capacitance prevents eye diagram closure at 480 Mbps; 5 V VRWM aligns with USB signaling voltage range. |
Use Scenario: Protecting MIPI DSI or LVDS display interface traces in automotive digital clusters from board-level ESD coupling. IC Role / Device Role / Timing Role: Point-of-entry ESD suppressor on high-speed video lanes between SoC and display timing controller. Use Value: Tight clamping (≤14 V at 36 A) prevents latch-up in display driver ICs; AEC-Q101 qualification ensures operation at 125 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ5.0A | DO-214AC package; higher VRWM (5.0 V), but larger 5.8 mm × 4.6 mm footprint and 1.78 mm height; 400 W PPP (8/20 μs) | Used where board space allows larger discrete TVS; not suitable for dense SMT layouts or automated placement with fine-pitch feeders | Select when higher surge margin is needed and SOT-23 size is impractical; verify PCB thermal relief for higher power dissipation |
| TPD2E001DRSR | 2-channel bidirectional array in UQFN-6; 5.5 V VRWM; 12 pF typical capacitance; ±8 kV contact ESD rating | Optimized for ultra-high-speed interfaces (e.g., HDMI, PCIe); lower capacitance but lower ESD rating than VGSOT05-G3-18 | Choose for multi-line, low-capacitance needs; avoid where ±30 kV system-level ESD compliance is mandatory |
Compared with SMAJ5.0A and TPD2E001DRSR, VGSOT05-G3-18 uniquely balances AEC-Q101 qualification, ±30 kV ESD immunity, and SOT-23 compactness - making it optimal for space-constrained automotive and industrial signal protection where both reliability and layout density matter.
Availability
VGSOT05-G3-18 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, and USB 2.0 data line protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for VGSOT05-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 passive and protection components for automotive, industrial, and computing markets.
The VGSOTxx family was developed specifically for AEC-Q101-compliant, single-line ESD protection in harsh-environment signal paths - emphasizing low leakage, repeatable clamping, and SOT-23 manufacturability.
FAQ
What is the exact reverse stand-off voltage (VRWM) of VGSOT05-G3-18?
The VGSOT05-G3-18 has a maximum reverse stand-off voltage (VRWM) of 5 V, meaning it remains non-conductive up to this DC or continuous AC voltage level on the protected line. This value is confirmed in the "ELECTRICAL CHARACTERISTICS VGSOT05" table on page 6 of Vishay document 86326, where VRWM is specified as "– – 5 V" under test condition "Max. reverse working voltage".
Does VGSOT05-G3-18 support AEC-Q101 qualification?
Yes, VGSOT05-G3-18 is AEC-Q101 qualified, as explicitly stated in the "FEATURES" section on page 1 of Vishay document 86326 ("AEC-Q101 qualified available") and reinforced in the "PACKAGE DATA" table on page 2, which lists VGSOT05 with "AEC-Q101 QUALIFIED" status in the ordering information matrix.
What is the peak pulse power rating of VGSOT05-G3-18 under IEC 61000-4-5 conditions?
The VGSOT05-G3-18 delivers 500 W peak pulse power (PPP) under 8/20 μs waveform per IEC 61000-4-5, as documented in the "ABSOLUTE MAXIMUM RATINGS VGSOT05" table on page 3 of Vishay document 86326. This rating applies to single-shot surge events and supports robust protection in industrial power-line coupled transient environments.
How does the BiAs-MODE operation affect VGSOT05-G3-18's clamping behavior?
BiAs-MODE enables asymmetric clamping: positive transients trigger reverse conduction above VBR (6–8 V), clamping to ≤14 V at 36 A; negative transients forward-bias the diode, clamping tightly to ≤1.2 V at 1 A. This dual-mode behavior is defined in the "BiAs-MODE" section on page 5 of Vishay document 86326 and ensures minimal disruption to ground-referenced signals.
What is the capacitance of VGSOT05-G3-18 at zero bias, and why does it matter?
VGSOT05-G3-18 exhibits 279–350 pF capacitance at VR = 0 V and f = 1 MHz, per the "ELECTRICAL CHARACTERISTICS VGSOT05" table on page 6. This value directly impacts high-speed signal integrity - lower capacitance reduces RC time constant loading, preserving edge rates on USB 2.0 or RS-485 lines without requiring equalization or retiming.
VGSOT05-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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 6V
- Voltage - Clamping (Max) @ Ipp:
- 14V
- Current - Peak Pulse (10/1000µs):
- 36A (8/20µs)
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 279pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VGSOT05-G3-18 FAQ
1.How can I place an order for VGSOT05-G3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VGSOT05-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 VGSOT05-G3-18 reliable?
The price and inventory of VGSOT05-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 VGSOT05-G3-18 is usually 5 days.
3.What payment methods are accepted for VGSOT05-G3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VGSOT05-G3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VGSOT05-G3-18?
VGSOT05-G3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VGSOT05-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 VGSOT05-G3-18?
For technical support, including VGSOT05-G3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VGSOT05-G3-18 requirements.
6.How does Aetrix verify that VGSOT05-G3-18 is sourced from the original manufacturer or authorized distributors?
All VGSOT05-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 VGSOT05-G3-18 meets industry standards.
7.What is the process for return or replacement of VGSOT05-G3-18?
All VGSOT05-G3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VGSOT05-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 VGSOT05-G3-18 part is unused and in its original packaging.
Return procedure for VGSOT05-G3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VGSOT05-G3-18 Tags
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