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Vishay General Semiconductor - Diodes Division GSOT24-E3-08
- Part No.:
- GSOT24-E3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
GSOT24-E3-08.pdf
- Description:
- TVS DIODE 24VWM 47VC SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,358
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Product details
Overview
GSOT24-E3-08 from Vishay Semiconductors is a single-line bidirectional asymmetrical ESD protection diode in SOT-23 package, rated for 24 V reverse stand-off voltage (VRWM), ±30 kV IEC 61000-4-2 ESD immunity, and 5 A peak pulse current (IPPM). It delivers 41–47 V clamping at full surge and <80 pF capacitance at 0 V bias, enabling robust transient suppression on high-speed data lines such as USB 2.0 or CAN FD interfaces.
For engineers reviewing the GSOT24-E3-08 datasheet, GSOT24-E3-08 pinout, GSOT24-E3-08 application, or GSOT24-E3-08 equivalent, this device serves as a space-efficient, AEC-Q101-qualified solution for automotive infotainment, industrial sensor I/O, and telecom port protection where low capacitance and precise 24 V standoff are required.
Technical Context
The GSOT24-E3-08 implements BiAs-MODE (Bidirectional Asymmetrical) protection: reverse clamping occurs above 27–33 V breakdown (VBR), while forward clamping holds near 1.0–1.4 V during negative transients. Its internal structure uses a single silicon avalanche diode between pins 1 and 3, with no series resistor or integrated capacitor.
It operates across –40 °C to +125 °C junction temperature, conforms to J-STD-020 MSL level 1, and features Sn (e3) matte tin plating. The device is not a TVS array or multi-line protector - it safeguards exactly one signal line referenced to ground, with pin 1 as ground terminal and pin 3 as protected line.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage (VRWM) | 24 V - maximum continuous DC or RMS signal voltage the device blocks without leakage; sets upper limit for protected line operating voltage. |
| Peak Pulse Current (IPPM) | 5 A - maximum 8/20 μs surge current it safely shunts to ground per IEC 61000-4-5; defines surge handling capacity for lightning-induced transients. |
| Clamping Voltage (VC) | 41–47 V at 5 A - maximum voltage seen by protected circuit during full-rated surge; determines residual stress on downstream ICs. |
| Capacitance (CD) | 65–80 pF at 0 V - parasitic capacitance across pins 1–3; directly impacts signal integrity on >10 Mbps data lines like RS-485 or CAN. |
| ESD Immunity | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - validated ESD robustness for human-handling events in assembly and end-use environments. |
| Operating Temperature | –40 °C to +125 °C - qualified range for under-hood automotive and industrial control applications without derating. |
| AEC-Q101 Qualified | Yes - certified for automotive electronics per stress test standard, including HTGB, HTRB, and temperature cycling. |
Pinout & Package
SOT-23 package: 3-pin surface-mount, 2.8 × 2.35 × 1.15 mm body, gull-wing leads, e3 matte tin plating, MSL level 1, peak reflow ≤260 °C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground (GND) | Low-impedance return path for ESD current; must connect directly to system ground plane with minimal trace inductance. |
| Pin 2 | No Connection (NC) | Internally unconnected; left floating or tied to ground per layout best practice - no electrical function. |
| Pin 3 | Protected Line (L1) | Input/output signal terminal; placed in series with data line upstream of IC input to clamp transients before they reach sensitive circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| BiAs-MODE Protection | Asymmetric clamping: ~1.4 V forward vs. ~41 V reverse at 5 A - enables low-voltage logic compatibility while maintaining high-voltage surge tolerance. |
| Low Capacitance | 65–80 pF at 0 V - minimizes signal distortion on 480 Mbps USB 2.0 or 1 Mbps CAN FD buses without requiring equalization. |
| AEC-Q101 Qualification | Validated for automotive use including temperature cycling, high-temp reverse bias, and ESD robustness - supports ASIL-B system integration. |
| e3 Matte Tin Termination | Lead (Pb)-free, RoHS-compliant Sn plating - ensures solderability and intermetallic reliability in lead-free reflow processes. |
| Single-Line Architecture | One-channel protection per device - simplifies layout, avoids crosstalk, and eliminates channel-to-channel mismatch in multi-line systems. |
Applications
| Automotive Infotainment Interface | Industrial RS-485 Port |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines in head unit docking connectors exposed to repeated hot-plug and static discharge. IC Role / Device Role / Timing Role: Standalone ESD suppressor placed immediately at connector entry point, before USB transceiver IC. Use Value: Prevents latch-up or gate oxide damage in USB PHY ICs during ±30 kV contact discharge events while adding <80 pF loading. |
Use Scenario: Securing differential RS-485 transceiver inputs in factory automation PLC modules mounted near motor drives. IC Role / Device Role / Timing Role: Point-of-entry transient suppressor on each A/B bus line, referenced to local chassis ground. Use Value: Limits induced surges from nearby switching noise to <47 V peak, preserving transceiver common-mode range and preventing false triggering. |
| Telecom Ethernet PHY Interface | Medical Sensor Signal Conditioning |
Use Scenario: Shielding 10/100BASE-TX MDI lines in PoE-powered network switches against ESD and fast transients. IC Role / Device Role / Timing Role: Per-line protection on TX+/TX− pairs, installed after magnetics but before PHY input pins. Use Value: Maintains signal integrity with sub-80 pF loading and clamps 5 A surges to ≤47 V - compatible with IEEE 802.3 timing budgets. |
Use Scenario: Safeguarding analog output lines from patient-connected biosensors (e.g., ECG, SpO₂) against operator touch discharge. IC Role / Device Role / Timing Role: Final-stage ESD guard on low-noise amplifier outputs prior to cable connectors. Use Value: Adds <1 μA leakage at 24 V and <80 pF capacitance - avoids gain error or bandwidth reduction in microvolt-level signal paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VGSOT24 | Successor family with identical VRWM (24 V), same SOT-23 package, but improved thermal performance and extended lifetime beyond Jan 2025 EOL date. | Drop-in replacement for new designs; requires no layout change but offers longer product availability and enhanced surge endurance. | Select VGSOT24 for production programs launching after Q2 2025 or requiring >10-year supply assurance. |
| SMF24A | Unidirectional TVS diode (SMA package), 24 V VRWM, 5.5 A IPPM, 49 V VC - lacks asymmetrical clamping and has higher capacitance (~120 pF). | Suitable only for DC-biased lines where negative transients are absent; not recommended for AC-coupled or bidirectional data lines. | Choose SMF24A only if protecting power rails or unidirectional signals with no high-speed timing constraints. |
Compared with GSOT24-E3-08, VGSOT24 provides assured long-term supply and marginally better thermal stability, while SMF24A trades bidirectional capability and low capacitance for higher surge rating and lower cost in non-data applications.
Availability
GSOT24-E3-08 is available at Aetrix Electronics and suitable for automotive infotainment, industrial RS-485 networks, and telecom Ethernet PHY interfaces requiring stable component supply through its End-of-Life date in January 2025.
Supply support for GSOT24-E3-08 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 GSOTxx series was developed specifically for single-line ESD protection in space-constrained, high-reliability applications - emphasizing low capacitance, AEC-Q101 qualification, and precise voltage standoff across automotive and industrial voltage rails.
FAQ
What is the exact pin configuration and connection method for GSOT24-E3-08?
The GSOT24-E3-08 uses a 3-pin SOT-23 package with Pin 1 as ground, Pin 2 as no-connect (NC), and Pin 3 as the protected signal line. It must be placed with Pin 1 tied directly to a low-inductance ground plane and Pin 3 inserted in series with the line being protected - no external bias or resistors are required. This configuration enables its BiAs-MODE clamping behavior.
Is GSOT24-E3-08 qualified for automotive applications, and what does AEC-Q101 qualification cover?
Yes, GSOT24-E3-08 is AEC-Q101 qualified. This certification covers stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), temperature cycling, and ESD robustness - all performed per JEDEC standards. It confirms suitability for under-hood and cabin electronics where reliability over 15+ years is required.
How does the BiAs-MODE operation of GSOT24-E3-08 differ from standard bidirectional TVS diodes?
Unlike symmetrical bidirectional TVS devices, GSOT24-E3-08's BiAs-MODE delivers ~1.4 V forward clamping during negative transients and ~41–47 V reverse clamping during positive surges. This asymmetry allows safe protection of logic-level signals referenced to ground while maintaining high surge tolerance - eliminating need for series resistors or voltage translators.
What is the maximum allowable trace length between GSOT24-E3-08 and the protected IC input?
To maintain effective clamping, the trace from GSOT24-E3-08 Pin 3 to the protected IC input should be ≤3 mm, and the ground path from Pin 1 to the nearest ground via must be ≤2 mm with ≥2 vias. Longer traces add inductance that raises clamped voltage during fast ESD events - verified in TLP testing per Figure 6 of the GSOTxx datasheet.
Does GSOT24-E3-08 support hot-swap or live-insertion scenarios in USB or Ethernet ports?
Yes, GSOT24-E3-08 supports hot-swap scenarios due to its ±30 kV IEC 61000-4-2 rating and low leakage (<1 μA at 24 V). Its 65–80 pF capacitance avoids signal degradation on USB 2.0 (480 Mbps) and 100BASE-TX lines, and its 125 °C max junction temperature accommodates sustained operation during repeated plug/unplug cycles.
GSOT24-E3-08 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:
- Last Time Buy
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 27V
- Voltage - Clamping (Max) @ Ipp:
- 47V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 235W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 65pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
GSOT24-E3-08 FAQ
1.How can I place an order for GSOT24-E3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT24-E3-08 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 GSOT24-E3-08 reliable?
The price and inventory of GSOT24-E3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GSOT24-E3-08 is usually 5 days.
3.What payment methods are accepted for GSOT24-E3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT24-E3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT24-E3-08?
GSOT24-E3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT24-E3-08 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 GSOT24-E3-08?
For technical support, including GSOT24-E3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT24-E3-08 requirements.
6.How does Aetrix verify that GSOT24-E3-08 is sourced from the original manufacturer or authorized distributors?
All GSOT24-E3-08 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 GSOT24-E3-08 meets industry standards.
7.What is the process for return or replacement of GSOT24-E3-08?
All GSOT24-E3-08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT24-E3-08, 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 GSOT24-E3-08 part is unused and in its original packaging.
Return procedure for GSOT24-E3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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