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Vishay General Semiconductor - Diodes Division VGSOT24-HG3-18
- Part No.:
- VGSOT24-HG3-18
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VGSOT24-HG3-18.pdf
- Description:
- TVS DIODE 24VWM 47VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:7,445
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Product details
Overview
VGSOT24-HG3-18 from Vishay Semiconductors is a unidirectional single-line ESD protection diode in SOT-23 package, designed for high-reliability data line protection. It delivers 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), making it suitable for USB 2.0, HDMI, and industrial sensor interface lines.
For engineers reviewing the VGSOT24-HG3-18 datasheet, VGSOT24-HG3-18 pinout, VGSOT24-HG3-18 application, or VGSOT24-HG3-18 equivalent, this device offers verified AEC-Q101 qualification, low 65–80 pF capacitance at 0 V bias, and asymmetrical bidirectional clamping behavior critical for signal integrity in high-speed analog and digital interfaces.
Technical Context
The VGSOT24-HG3-18 implements BiAs-MODE (Bidirectional Asymmetrical) protection: pin 1 grounded, pin 3 connected to protected line. During positive transients, conduction occurs above 27–33 V breakdown (VBR); during negative transients, forward clamping limits voltage to ≤1.7 V at 8.4 A peak current.
Its thermal design supports continuous operation from –55 °C to +150 °C junction temperature, with MSL level 1 moisture sensitivity and UL 94 V-0 molding compound-enabling reflow compatibility up to 260 °C peak and suitability for automotive and industrial PCB assembly.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 24 V - Maximum continuous reverse working voltage before leakage exceeds 1 μA; sets upper limit for safe signal swing in protected line. |
| VBR (min/typ/max) | 27 / 30 / 33 V - Reverse breakdown threshold at 1 mA; defines onset of clamping for positive ESD events. |
| VC @ IPPM = 8.4 A | 37.5–46 V - Clamped voltage during worst-case 8/20 μs surge; determines maximum stress on downstream IC input. |
| VF @ IPPM = 8.4 A | ≤1.7 V - Forward clamping voltage under same surge; ensures negative transients are suppressed near ground potential. |
| Capacitance @ 0 V | 65–80 pF - Signal-line loading at DC bias; low enough for <480 Mbps USB 2.0 and 720p HDMI applications. |
| ESD immunity | ±30 kV contact/air discharge - Meets IEC 61000-4-2 and ISO 10605 requirements for robust system-level ESD survivability. |
| PPPM (8/20 μs) | 400 W - Peak pulse power handling capacity; enables protection against lightning-induced surges per IEC 61000-4-5. |
Pinout & Package
SOT-23 package: 3-pin, surface-mount, gull-wing leads; 2.9 mm × 1.3 mm × 1.01 mm body; e3 Sn plating; RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground (Anode connection) | Low-inductance return path for transient current; must be connected to solid system ground plane. |
| Pin 2 | No internal connection | Electrically isolated; no bonding wire or die attachment; serves mechanical support only. |
| Pin 3 | Protected line (Cathode connection) | Input node for data/signal line; clamps to ground during overvoltage via integrated PN junction. |
Key Features
| Feature | Design Value |
|---|---|
| BiAs-MODE clamping | Asymmetrical response: 37.5–46 V clamping for +ve surges, ≤1.7 V for –ve surges-preserves signal DC offset and minimizes distortion. |
| AEC-Q101 qualification | Qualified for automotive applications including infotainment and ADAS sensor interfaces requiring extended temperature and reliability validation. |
| Low capacitance (65–80 pF) | Enables use on high-speed lines without degrading rise/fall times or causing signal reflection in sub-500 MHz bandwidth systems. |
| e3 Sn termination | Tin-plated leads compatible with standard Pb-free reflow profiles; eliminates lead contamination risk in green manufacturing. |
| MSL level 1 rating | Unlimited floor life at ≤30 °C/60% RH; no baking required prior to assembly-reduces production overhead and moisture-related defects. |
Applications
| USB 2.0 Data Lines | HDMI TMDS Channels |
|---|---|
Use Scenario: Protecting D+ and D− pins of USB 2.0 transceivers against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Standalone unidirectional clamp placed between connector and PHY IC; no timing impact on 480 Mbps signaling. Use Value: Maintains signal integrity with ≤80 pF loading while delivering ±30 kV ESD immunity-meeting IEC 61000-4-2 Level 4 compliance. |
Use Scenario: Safeguarding HDMI TMDS differential pairs against electrostatic discharge in consumer AV equipment and automotive displays. IC Role / Device Role / Timing Role: Single-line protection per channel; placed adjacent to HDMI connector to minimize trace inductance. Use Value: 24 V VRWM aligns with HDMI common-mode voltage range; asymmetrical clamping avoids DC offset shift in AC-coupled channels. |
| Automotive Sensor Interfaces | Industrial RS-485 Nodes |
Use Scenario: Shielding LIN or CAN FD physical layer inputs in engine control modules exposed to harsh ESD environments. IC Role / Device Role / Timing Role: Front-end transient suppressor on sensor signal lines; operates independently of bus protocol timing. Use Value: AEC-Q101 qualification and –55 °C to +150 °C operation ensure reliability across under-hood temperature extremes. |
Use Scenario: Protecting RS-485 receiver inputs in factory automation gateways subjected to cable discharge events. IC Role / Device Role / Timing Role: Unidirectional clamp on A/B lines; preserves differential noise rejection by matching capacitance on both sides. Use Value: 400 W peak power rating handles induced surges from nearby motor switching; low leakage (<1 μA at 24 V) prevents bus bias drift. |
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 600 W PPPM (8/20 μs), but 190 pF capacitance and DO-214AC package-larger footprint and higher signal loading. | Best suited for lower-speed power/data lines where board space permits larger package and capacitance is not critical. | Select SMAJ24A only when surge energy exceeds 400 W and layout allows SMC footprint; avoid for USB/HDMI. |
| TPD2E001DRYR | 2-channel, 10 pF typical capacitance, but lower 30 V VRWM and non-AEC-Q101 rated; uses DRY (SOT-553) package. | Targeted at portable electronics with tight capacitance budgets; lacks automotive qualification and single-line flexibility. | Choose TPD2E001DRYR for space-constrained consumer devices needing ultra-low capacitance; not recommended for automotive or industrial use. |
Compared with SMAJ24A and TPD2E001DRYR, VGSOT24-HG3-18 uniquely balances AEC-Q101 qualification, SOT-23 compactness, 24 V VRWM, and 65–80 pF capacitance-making it optimal for automotive sensor interfaces and industrial high-speed data links where reliability, size, and signal fidelity are jointly constrained.
Availability
VGSOT24-HG3-18 is available at Aetrix Electronics and suitable for USB 2.0 interfaces, automotive sensor nodes, and industrial RS-485 communication systems requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant ESD protection.
Supply support for VGSOT24-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 passive and protection components for automotive, industrial, and computing markets.
The VGSOTxx family was developed specifically for high-speed data line ESD protection with asymmetrical clamping behavior, targeting applications demanding low capacitance, AEC-Q101 qualification, and SOT-23 form factor compatibility.
FAQ
What is the maximum operating junction temperature for VGSOT24-HG3-18?
The VGSOT24-HG3-18 has a maximum junction temperature (TJ) of +150 °C, validated per absolute maximum ratings in Vishay document 86326. This rating enables reliable operation in under-hood automotive environments and industrial enclosures without derating. The device maintains specified electrical performance across its full –55 °C to +150 °C TJ range, and VGSOT24-HG3-18 thermal impedance supports sustained power dissipation within this envelope.
Is VGSOT24-HG3-18 qualified to AEC-Q101 standards?
Yes, VGSOT24-HG3-18 is explicitly AEC-Q101 qualified, as confirmed in the Vishay VGSOT03–VGSOT36 datasheet (Rev. 1.1, Feb 2025). This qualification covers temperature cycling, humidity testing, mechanical shock, and ESD robustness-validating its suitability for automotive electronics. VGSOT24-HG3-18 meets all stress test requirements defined in AEC-Q101, and the "HG" in its part number denotes AEC-Q101 qualification per Vishay's ordering code convention.
What is the reverse leakage current specification for VGSOT24-HG3-18 at rated VRWM?
At VR = 24 V (its rated reverse stand-off voltage), VGSOT24-HG3-18 exhibits a maximum reverse leakage current (IR) of 1 μA, measured at Tamb = 25 °C. This low leakage ensures minimal impact on bias networks and signal integrity in high-impedance interfaces. The specification is guaranteed per the ELECTRICAL CHARACTERISTICS table for VGSOT24 in document 86326, and VGSOT24-HG3-18 maintains this performance across its full operating temperature range.
Does VGSOT24-HG3-18 support bidirectional ESD protection?
VGSOT24-HG3-18 implements BiAs-MODE (Bidirectional Asymmetrical) protection: it clamps positive transients above VBR (27–33 V) to ground via reverse conduction, and negative transients to ~1.7 V via forward conduction. While functionally bidirectional in suppression, it is electrically unidirectional-pin 1 must be grounded and pin 3 connected to the protected line. This architecture is intrinsic to VGSOT24-HG3-18 and documented in the BiAs-MODE section of its datasheet.
What is the capacitance of VGSOT24-HG3-18 at 12 V reverse bias?
At VR = 12 V and f = 1 MHz, VGSOT24-HG3-18 exhibits a typical capacitance of 23 pF, as specified in the ELECTRICAL CHARACTERISTICS table for VGSOT24 (document 86326, page 7). This low-bias capacitance confirms minimal high-frequency loading on signal lines operating near mid-rail voltages, supporting clean signal transmission in applications like RS-485 receivers and sensor analog outputs. The value is measured and guaranteed-not derived-and applies directly to VGSOT24-HG3-18.
VGSOT24-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:
- 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:
- -
- 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
VGSOT24-HG3-18 FAQ
1.How can I place an order for VGSOT24-HG3-18 through Aetrix?
Please submit a Request for Quotation (RFQ) for VGSOT24-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 VGSOT24-HG3-18 reliable?
The price and inventory of VGSOT24-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 VGSOT24-HG3-18 is usually 5 days.
3.What payment methods are accepted for VGSOT24-HG3-18?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VGSOT24-HG3-18 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VGSOT24-HG3-18?
VGSOT24-HG3-18 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VGSOT24-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 VGSOT24-HG3-18?
For technical support, including VGSOT24-HG3-18 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VGSOT24-HG3-18 requirements.
6.How does Aetrix verify that VGSOT24-HG3-18 is sourced from the original manufacturer or authorized distributors?
All VGSOT24-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 VGSOT24-HG3-18 meets industry standards.
7.What is the process for return or replacement of VGSOT24-HG3-18?
All VGSOT24-HG3-18 units undergo pre-shipment inspection (PSI). If there is an issue with VGSOT24-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 VGSOT24-HG3-18 part is unused and in its original packaging.
Return procedure for VGSOT24-HG3-18:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VGSOT24-HG3-18 Tags
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