Vishay General Semiconductor - Diodes Division VGSOT24C-HG3-08
- Part No.:
- VGSOT24C-HG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VGSOT24C-HG3-08.pdf
- Description:
- TVS DIODE 24VWM 47VC SOT23
- Quantity:
- Payment:

- Shipping:

Inventory:3,983
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Product details
Overview
VGSOT24C-HG3-08 from Vishay Semiconductors is a two-line unidirectional ESD protection diode in SOT-23 package, featuring common-anode dual-channel configuration, 24 V reverse stand-off 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 RS-485 interfaces against electrostatic discharge.
For engineers reviewing the VGSOT24C-HG3-08 datasheet, VGSOT24C-HG3-08 pinout, VGSOT24C-HG3-08 application, or VGSOT24C-HG3-08 equivalent, this page delivers verified electrical characteristics, BiAs/BiSy dual-mode operation details, SOT-23 terminal mapping, and AEC-Q101-qualified alternatives for automotive and industrial interface protection design.
Technical Context
The VGSOT24C-HG3-08 implements a dual-diode common-anode topology enabling two independent signal-line protection paths (L1 and L2) referenced to ground (pin 3). Its BiAs-MODE supports asymmetrical clamping-reverse breakdown at 27–33 V with 37.5–46 V clamping at 8.4 A, and forward clamping at ≤1.7 V-ideal for DC-biased data lines.
In BiSy-MODE (pins 1–2 only, pin 3 open), it functions as a single-line bidirectional protector with 24.5 V VRWM, 27.5–33.7 V VBR, and 40–48 V clamping at 8.4 A, leveraging matched diode pairs for symmetrical transient suppression in AC-coupled or floating interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 24 V - maximum continuous reverse voltage before leakage exceeds 1 μA; sets operating margin for 24 V nominal systems. |
| VBR (min/typ/max) | 27 V / 30 V / 33 V - precise reverse breakdown threshold ensures predictable turn-on during transients. |
| VC @ IPPM | 37.5–46 V - clamping voltage at 8.4 A (8/20 μs) defines worst-case overvoltage seen by protected ICs. |
| CD @ 0 V | 65–80 pF - low line capacitance preserves signal integrity on USB 2.0 and CAN FD interfaces. |
| ESD immunity | ±30 kV contact/air (IEC 61000-4-2 & ISO 10605) - meets Level 4 system-level ESD requirements. |
| PPPM (8/20 μs) | 400 W - surge handling capability for lightning-induced surges per IEC 61000-4-5. |
| TJ max. | 150 °C - enables use in under-hood automotive environments and industrial enclosures. |
Pinout & Package
SOT-23 package (JEDEC TO-236AB), 3-terminal surface-mount device with 1.3 mm × 2.9 mm footprint, 1.1 mm height, MSL level 1, and lead (Pb)-free e3 Sn terminations.
| 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-path structure. |
| Pin 2 | Anode of Diode 2 | Connects to second protected signal line (L2); shares cathode (pin 3) with Pin 1 for compact dual-line protection. |
| Pin 3 | Common Cathode | Ground reference for both diodes; must be connected to system ground for BiAs-MODE operation. |
Key Features
| Feature | Design Value |
|---|---|
| Dual-line unidirectional protection | Simultaneous safeguarding of two independent data lines (e.g., CAN_H/CAN_L or RS-485 A/B) with shared ground return. |
| BiAs/BiSy dual-mode operation | Selectable between asymmetrical (BiAs) for DC-biased lines or symmetrical (BiSy) for AC-coupled lines via pin 3 connection status. |
| AEC-Q101 qualified | Validated for automotive applications including infotainment and body control modules requiring robust ESD resilience. |
| Low clamping VF | Forward clamping ≤1.7 V at 8.4 A ensures minimal negative transient overshoot on grounded signal paths. |
| Ultra-low leakage | IR ≤1 μA at 24 V enables use in battery-powered systems without significant standby current drain. |
Applications
| Automotive CAN Bus Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting CAN_H and CAN_L lines in vehicle ECUs against ESD events during connector mating/unmating or cable discharge. IC Role / Device Role / Timing Role: Two-line unidirectional ESD clamp with common cathode (pin 3) tied to chassis ground. Use Value: Maintains CAN signal integrity with 65–80 pF line capacitance while suppressing ±30 kV transients to <46 V clamping. | Use Scenario: Safeguarding differential RS-485 transceivers in factory automation PLCs exposed to field wiring ESD and surge. IC Role / Device Role / Timing Role: Dual-channel transient voltage suppressor placed at connector entry point, with pins 1/2 on A/B lines and pin 3 grounded. Use Value: Delivers 400 W surge rating and 24 V VRWM compatibility with 3.3 V/5 V RS-485 PHYs without compromising data rate. |
| USB 2.0 Data Line Protection | Smart Meter Communication Port |
Use Scenario: Shielding D+ and D− lines of USB 2.0 ports in medical devices and test equipment from user-handling ESD. IC Role / Device Role / Timing Role: Low-capacitance dual-diode array configured in BiAs mode to preserve 480 Mbps signal fidelity. Use Value: 65–80 pF capacitance at 0 V ensures <0.1 UI jitter impact; ±30 kV immunity exceeds IEC 61000-4-2 Level 4. | Use Scenario: Hardening optical or RS-232/485 communication ports in utility smart meters against meter-reader ESD and induced surges. IC Role / Device Role / Timing Role: Primary front-end ESD suppressor in bi-directional communication path, rated for 150 °C junction temperature. Use Value: AEC-Q101 qualification and -55 °C to +150 °C operating range ensure reliability in outdoor meter enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMA6J24A | Single-line unidirectional TVS; 24 V VRWM, 38.9 V VC @ 7.7 A; SMC package (larger footprint). | Protects only one line; requires two devices for dual-line coverage; higher clamping voltage. | Choose when board space allows larger SMC and discrete line protection is preferred over integrated dual-channel solution. |
| TPD2E001DRSR | Two-line unidirectional ESD array; 5 V VRWM, 15 pF CD @ 0 V; 0.65 mm × 1.0 mm DRS package. | Optimized for low-voltage, high-speed interfaces (e.g., HDMI, USB 3.0); insufficient for 24 V systems. | Choose for sub-5 V digital interfaces where ultra-low capacitance and miniaturization outweigh voltage rating needs. |
Compared with SMA6J24A and TPD2E001DRSR, VGSOT24C-HG3-08 uniquely delivers dual-line 24 V protection in SOT-23 with balanced clamping (≤46 V), AEC-Q101 qualification, and BiAs/BiSy mode flexibility-enabling fewer components, smaller layout, and broader voltage-range applicability.
Availability
VGSOT24C-HG3-08 is available at Aetrix Electronics and suitable for automotive CAN bus protection, industrial RS-485 interface hardening, and USB 2.0 data line safeguarding requiring stable component supply across production lifecycles.
Supply support for VGSOT24C-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 passive components for automotive, industrial, and computing markets.
The VGSOTxxC family was engineered specifically for compact, high-performance ESD protection of differential and single-ended data lines in space-constrained, mission-critical applications demanding AEC-Q101 compliance and multi-kV immunity.
FAQ
What is the maximum reverse working voltage (VRWM) of the VGSOT24C-HG3-08?
The VGSOT24C-HG3-08 has a maximum reverse working voltage (VRWM) of 24 V, defined as the highest DC or continuous peak reverse voltage at which the device exhibits ≤1 μA leakage current. This rating ensures reliable operation in 24 V nominal systems such as automotive body control modules and industrial sensors without premature conduction.
How does the VGSOT24C-HG3-08 support both BiAs and BiSy protection modes?
The VGSOT24C-HG3-08 supports BiAs-MODE (bidirectional asymmetrical) when pin 3 is grounded and pins 1/2 connect to separate signal lines, enabling independent clamping for positive/negative transients. For BiSy-MODE (bidirectional symmetrical), pin 3 is left unconnected and pins 1–2 form a single-line protector-leveraging internal diode pairing to deliver matched clamping in both polarities.
What is the clamping voltage of the VGSOT24C-HG3-08 at its peak pulse current?
At its peak pulse current (IPPM) of 8.4 A (8/20 μs waveform), the VGSOT24C-HG3-08 delivers a reverse clamping voltage (VC) of 37.5–46 V. This value represents the maximum voltage imposed on protected circuitry during worst-case surge events, directly determined by the device's dynamic impedance and breakdown characteristics.
Is the VGSOT24C-HG3-08 qualified for automotive applications?
Yes, the VGSOT24C-HG3-08 is AEC-Q101 qualified, having passed stress tests including high-temperature operating life, temperature cycling, and ESD robustness required for automotive electronics. Its -55 °C to +150 °C operating temperature range and 150 °C maximum junction temperature support under-hood and infotainment module deployment.
What package type and termination does the VGSOT24C-HG3-08 use?
The VGSOT24C-HG3-08 uses the industry-standard SOT-23 package (JEDEC TO-236AB) with e3 Sn (tin) matte finish terminations, compliant with RoHS and lead-free assembly requirements. It weighs 9.2 mg, carries UL 94 V-0 flammability rating, and is rated MSL level 1 for unlimited floor life at ambient conditions.
VGSOT24C-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):
- 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:
- -
- Capacitance @ Frequency:
- 65pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VGSOT24C-HG3-08 FAQ
1.How can I place an order for VGSOT24C-HG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VGSOT24C-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 VGSOT24C-HG3-08 reliable?
The price and inventory of VGSOT24C-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 VGSOT24C-HG3-08 is usually 5 days.
3.What payment methods are accepted for VGSOT24C-HG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VGSOT24C-HG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VGSOT24C-HG3-08?
VGSOT24C-HG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VGSOT24C-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 VGSOT24C-HG3-08?
For technical support, including VGSOT24C-HG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VGSOT24C-HG3-08 requirements.
6.How does Aetrix verify that VGSOT24C-HG3-08 is sourced from the original manufacturer or authorized distributors?
All VGSOT24C-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 VGSOT24C-HG3-08 meets industry standards.
7.What is the process for return or replacement of VGSOT24C-HG3-08?
All VGSOT24C-HG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VGSOT24C-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 VGSOT24C-HG3-08 part is unused and in its original packaging.
Return procedure for VGSOT24C-HG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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