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Vishay General Semiconductor - Diodes Division VGSOT24-G3-18
- Part No.:
- VGSOT24-G3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VGSOT24-G3-18.pdf
- Description:
- TVS DIODE 24VWM 47VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:5,506
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Product details
Overview
VGSOT24-G3-18 from Vishay Semiconductors is a unidirectional single-line ESD protection diode in SOT-23 package, designed for high-reliability data line protection with 24 V reverse stand-off voltage (VRWM), ±30 kV IEC 61000-4-2/ISO 10605 ESD immunity, and 400 W peak pulse power (8/20 μs). It serves as transient voltage suppression for USB, HDMI, and industrial sensor interfaces.
For engineers reviewing the VGSOT24-G3-18 datasheet, VGSOT24-G3-18 pinout, VGSOT24-G3-18 application, or VGSOT24-G3-18 equivalent, this page delivers verified electrical parameters, BiAs-mode clamping behavior, AEC-Q101 qualification status, and real-world design implications for high-speed signal integrity and automotive-grade ESD robustness.
Technical Context
The VGSOT24-G3-18 implements Bidirectional Asymmetrical (BiAs) protection mode: pin 1 grounded, pin 3 connected to protected line. During positive transients, it conducts above VBR (27–33 V) with reverse clamping up to 46 V at 8.4 A; during negative transients, it clamps near ground via low VF (≤1.2 V at 1 A).
Its 65–80 pF capacitance at 0 V reverse bias and 23 pF at 12 V enables use on 24 V logic and analog lines where signal integrity and bandwidth preservation are critical-e.g., CAN FD physical layer interfaces and industrial I/O modules requiring <1 μA leakage at VRWM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 24 V - Maximum continuous operating voltage before conduction; sets upper limit for protected line's nominal DC voltage. |
| VBR (min/typ/max) | 27 / 30 / 33 V - Breakdown threshold at 1 mA; defines onset of clamping for positive ESD events. |
| VC @ IPPM = 8.4 A | ≤46 V - Peak clamping voltage under worst-case 8/20 μs surge; determines maximum stress on downstream IC. |
| VF @ 1 A | ≤1.2 V - Forward clamping level during negative transients; ensures sub-1.2 V overvoltage on protected line. |
| CD @ 0 V / 1 MHz | 65–80 pF - Signal-line loading capacitance; impacts rise time and bandwidth in high-speed interfaces like RS-485. |
| ESD immunity | ±30 kV contact/air discharge - Meets IEC 61000-4-2 Level 4 and ISO 10605 for automotive and industrial environments. |
| TJ max | +150 °C - Enables operation in under-hood automotive ECUs and industrial motor drives without derating. |
Pinout & Package
SOT-23 package: 3-pin, surface-mount, green molding compound (UL 94 V-0), 9.2 mg weight, MSL level 1, compatible with standard reflow profiles (peak ≤260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground (cathode connection) | Low-inductance return path for ESD current; must be tied directly to system ground plane with minimal trace length. |
| Pin 2 | No connection (NC) | Internal die pad; electrically isolated and thermally inactive-no PCB routing required. |
| Pin 3 | Protected line (anode connection) | Input for signal/data line; clamping occurs between Pin 3 and Pin 1 during both polarities of ESD event. |
Key Features
| Feature | Design Value |
|---|---|
| BiAs-mode clamping | Asymmetric forward/reverse clamping (VF ≤1.2 V / VC ≤46 V) preserves signal integrity while enabling robust bidirectional protection. |
| AEC-Q101 qualified | Qualified for automotive applications per AEC-Q101 Rev D; supports under-hood and infotainment system deployment. |
| e3 Sn termination | Lead (Pb)-free, matte tin plating compliant with RoHS and JEDEC J-STD-020; ensures solderability and long-term reliability. |
| Low leakage current | IR ≤1 μA at VR = 24 V - Minimizes standby power loss and avoids false triggering in high-impedance sensor circuits. |
| High ESD immunity | ±30 kV per IEC 61000-4-2 and ISO 10605 - Exceeds Level 4 requirements for consumer, industrial, and automotive end equipment. |
Applications
| Automotive Sensor Interface | Industrial RS-485 Transceiver Protection |
|---|---|
Use Scenario: Protecting LIN/CAN sensor nodes against ESD in engine control units and body electronics. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed between sensor signal line and ground. Use Value: Maintains 24 V VRWM compatibility with automotive supply rails while delivering ±30 kV ESD immunity and <1 μA leakage at full rating. |
Use Scenario: Safeguarding RS-485 differential pairs in factory automation PLCs exposed to cable discharge events. IC Role / Device Role / Timing Role: Single-line ESD clamp on each data line (A/B), leveraging low 65–80 pF capacitance to preserve signal edge rates. Use Value: Limits clamping voltage to ≤46 V during 8.4 A surges, preventing damage to MAX1487-level transceivers without degrading 10 Mbps data integrity. |
| USB 2.0 Data Line Protection | Industrial Analog Input Module |
Use Scenario: ESD hardening of USB D+/D− lines in medical handheld devices and test equipment. IC Role / Device Role / Timing Role: Per-line unidirectional TVS diode with ground reference, installed adjacent to USB connector. Use Value: 23 pF capacitance at 12 V bias minimizes signal distortion on 480 Mbps USB 2.0 links while meeting IEC 61000-4-2 Level 4. |
Use Scenario: Protecting 0–10 V or 4–20 mA analog input channels in programmable logic controllers. IC Role / Device Role / Timing Role: Standoff-rated ESD clamp on each analog channel, selected for 24 V VRWM matching common industrial supply rails. Use Value: Ensures ≤1 μA leakage at full 24 V bias, avoiding measurement offset errors in 16-bit ADC front-ends while surviving repeated ±30 kV contact discharges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A | Higher VRWM (24 V), but bidirectional, higher capacitance (150 pF), lower PPPM (400 W), no AEC-Q101 qualification. | Used in general-purpose AC/DC power rail protection; not optimized for high-speed data lines. | Select VGSOT24-G3-18 when low capacitance (<80 pF), AEC-Q101 compliance, and BiAs-mode clamping are required. |
| TPD2E001DRSR | Lower VRWM (5.5 V), dual-channel, ultra-low capacitance (11 pF), integrated ESD array, no AEC-Q101 qualification. | Targeted at USB/DisplayPort interface protection in portable electronics-not suitable for 24 V industrial lines. | Choose VGSOT24-G3-18 for 24 V standoff, automotive qualification, and discrete per-line control in harsh environments. |
Compared with SMAJ24A and TPD2E001DRSR, VGSOT24-G3-18 uniquely combines 24 V VRWM, ±30 kV ESD immunity, AEC-Q101 qualification, and 65–80 pF capacitance-making it the only option validated for 24 V industrial sensor and automotive LIN bus protection where leakage, clamping precision, and thermal robustness are critical.
Availability
VGSOT24-G3-18 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial RS-485 networks, USB 2.0 data line protection, and analog input modules requiring stable component supply across production lifecycles.
Supply support for VGSOT24-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 engineered specifically for high-speed data line ESD protection with BiAs-mode clamping, targeting automotive infotainment, industrial I/O, and sensor interface applications demanding AEC-Q101 qualification and precise voltage standoff.
FAQ
What is the maximum reverse working voltage (VRWM) of the VGSOT24-G3-18?
The VGSOT24-G3-18 has a maximum reverse working voltage (VRWM) of 24 V, meaning it can continuously withstand up to 24 V DC on the protected line without conducting. This value is confirmed in the Electrical Characteristics table for VGSOT24 on page 7 of Vishay document 86326, where VRWM is specified as "24 V" with IR ≤1 μA at VR = 24 V.
Does the VGSOT24-G3-18 meet AEC-Q101 qualification standards?
Yes, the VGSOT24-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 supported by its packaging data listing "AEC-Q101 QUALIFIED" in the Ordering Information table. This qualification covers temperature cycling, mechanical shock, and ESD testing per Rev D requirements.
What is the clamping voltage of the VGSOT24-G3-18 under a full 8.4 A 8/20 μs surge?
Under an 8.4 A 8/20 μs peak pulse current (IPPM), the VGSOT24-G3-18 exhibits a maximum reverse clamping voltage (VC) of 46 V, as specified in the ELECTRICAL CHARACTERISTICS table for VGSOT24 on page 7 of document 86326. This value defines the worst-case voltage seen by downstream circuitry during a high-energy transient.
How many signal lines can the VGSOT24-G3-18 protect simultaneously?
The VGSOT24-G3-18 protects exactly one signal or data line, as confirmed by the "Number of lines which can be protected" parameter (Nchannel = 1) in the ELECTRICAL CHARACTERISTICS table for VGSOT24 on page 7 of Vishay document 86326. Its SOT-23 3-pin configuration supports only a single unidirectional protection path between pin 3 (signal) and pin 1 (ground).
What is the typical capacitance of the VGSOT24-G3-18 at zero bias?
The typical capacitance of the VGSOT24-G3-18 at 0 V reverse bias and 1 MHz is 65–80 pF, as listed in the ELECTRICAL CHARACTERISTICS table on page 7 of Vishay document 86326. This low, controlled capacitance enables use on high-speed lines such as USB 2.0 and RS-485 without significant signal degradation.
VGSOT24-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):
- 24V (Max)
- Voltage - Breakdown (Min):
- 27V
- Voltage - Clamping (Max) @ Ipp:
- 46V
- Current - Peak Pulse (10/1000µs):
- 8.4A (8/20µs)
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 65pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VGSOT24-G3-18 FAQ
1.How can I place an order for VGSOT24-G3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VGSOT24-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 VGSOT24-G3-18 reliable?
The price and inventory of VGSOT24-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 VGSOT24-G3-18 is usually 5 days.
3.What payment methods are accepted for VGSOT24-G3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VGSOT24-G3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VGSOT24-G3-18?
VGSOT24-G3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VGSOT24-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 VGSOT24-G3-18?
For technical support, including VGSOT24-G3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VGSOT24-G3-18 requirements.
6.How does Aetrix verify that VGSOT24-G3-18 is sourced from the original manufacturer or authorized distributors?
All VGSOT24-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 VGSOT24-G3-18 meets industry standards.
7.What is the process for return or replacement of VGSOT24-G3-18?
All VGSOT24-G3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VGSOT24-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 VGSOT24-G3-18 part is unused and in its original packaging.
Return procedure for VGSOT24-G3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VGSOT24-G3-18 Tags
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