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Vishay General Semiconductor - Diodes Division GSOT24C-HE3-08
- Part No.:
- GSOT24C-HE3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
GSOT24C-HE3-08.pdf
- Description:
- TVS DIODE 24VWM 47VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:5,580
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Product details
Overview
GSOT24C-HE3-08 from Vishay Semiconductors is a two-line bidirectional ESD protection diode in SOT-23 package, rated for ±30 kV IEC 61000-4-2 contact/air discharge, 24 V reverse stand-off voltage (VRWM), and 5 A peak pulse current (IPPM). It protects high-speed data lines such as USB 2.0, HDMI, or industrial serial interfaces against transient overvoltage events.
For engineers reviewing the GSOT24C-HE3-08 datasheet, GSOT24C-HE3-08 pinout, GSOT24C-HE3-08 application, or GSOT24C-HE3-08 equivalent, key selection criteria include clamping voltage at 5 A (41–47 V), low 1 μA reverse leakage at 24 V, 65–80 pF capacitance at 0 V bias, BiAs-mode dual-line operation, and AEC-Q101 qualification readiness.
Technical Context
The GSOT24C-HE3-08 implements BiAs-MODE (Bidirectional Asymmetrical) protection: pins 1 and 2 connect to protected signal lines, pin 3 to ground, enabling independent clamping of positive transients (via reverse-biased diodes) and negative transients (via forward conduction). Its asymmetry delivers ~1.4 V forward clamping at 5 A while maintaining 41–47 V reverse clamping under surge.
It also supports BiSy-MODE (Bidirectional Symmetrical) operation with pin 3 unconnected-pins 1 and 2 form a single-channel path-yielding 24.5 V VRWM and 33–40 pF capacitance, suitable for balanced analog or legacy bus lines requiring matched positive/negative clamping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD immunity | ±30 kV contact/air discharge per IEC 61000-4-2 - meets Level 4 system-level ESD robustness for industrial and automotive ECUs. |
| Reverse stand-off voltage (VRWM) | 24 V - ensures no conduction during normal 24 V supply or signal swing, critical for 24 V industrial I/O protection. |
| Peak pulse current (IPPM) | 5 A (8/20 μs) - sustains surge energy up to 235 W (pin 1–3) or 240 W (pin 1–2), sufficient for IEC 61000-4-5 Level 3. |
| Clamping voltage (VC) | 41–47 V at 5 A - limits transient voltage seen by downstream ICs, preserving 3.3 V/5 V logic interface integrity. |
| Capacitance (CD) | 65–80 pF at 0 V / 20 pF at 12 V - low enough for USB 2.0 (≤100 pF) and RS-485, minimizing signal distortion. |
| Reverse leakage (IR) | ≤1 μA at 24 V - prevents measurable DC loading on 24 V sensor or actuator lines. |
| Operating temperature | −55 °C to +150 °C - supports under-hood automotive, factory automation, and outdoor industrial deployment. |
Pinout & Package
SOT-23 package (JEDEC TO-236AB), 3-terminal surface-mount device with standard footprint (2.8 × 2.35 × 1.15 mm), MSL level 1, lead (Pb)-free e3 Sn plating, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Line 1 anode / cathode | Connects to first protected signal line (L1); forms one half of BiAs dual-path or BiSy single-path clamp. |
| Pin 2 | Line 2 anode / cathode | Connects to second protected signal line (L2) in BiAs mode; or ground in BiSy mode (pin 3 open). |
| Pin 3 | Ground reference | Common cathode connection for BiAs operation; must be tied to clean system ground for effective transient shunting. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional asymmetrical (BiAs) protection | Enables simultaneous protection of two independent data lines (e.g., CAN_H/CAN_L) with shared ground, reducing component count vs. discrete diodes. |
| Low clamping in forward direction | 1.4 V max at 5 A - minimizes voltage overshoot during negative transients, safeguarding CMOS inputs with tight VIL/VIH margins. |
| High-temperature reliability | Rated to +150 °C junction - validated for engine control modules, motor drives, and power supply monitoring circuits. |
| AEC-Q101 qualified option available | Variants like GSOT24C-HG3-08 meet stress-test requirements for automotive electronics, supporting functional safety design. |
| Low capacitance at operating bias | 20 pF at 12 V reverse bias - preserves signal rise/fall times in 24 V analog sensor interfaces (e.g., 4–20 mA loop receivers). |
Applications
| Industrial Serial Interface Protection | Automotive Sensor Signal Conditioning |
|---|---|
Use Scenario: Protecting RS-485 transceivers in programmable logic controllers (PLCs) exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Two-line ESD/transient suppressor placed at connector entry point, clamping common-mode and differential surges before the transceiver. Use Value: Maintains 65–80 pF total capacitance to preserve 10 Mbps data integrity while surviving 5 A 8/20 μs surges per IEC 61000-4-5. |
Use Scenario: Shielding LIN bus nodes in body control modules from ESD events during assembly or service. IC Role / Device Role / Timing Role: Bidirectional clamp on LIN data line (pin 1–2 in BiSy mode), referenced to chassis ground via pin 3. Use Value: Delivers ±30 kV ESD immunity and 24.5 V VRWM compatibility with 12 V automotive systems, ensuring robust start-up and sleep-mode operation. |
| 24 V Analog Input Protection | USB 2.0 Port ESD Suppression |
Use Scenario: Safeguarding 24 V analog input channels in industrial I/O modules from field-wiring induced transients. IC Role / Device Role / Timing Role: Dual-path protector (BiAs) on differential pair (e.g., voltage/current sense lines), with pin 3 grounded. Use Value: 24 V VRWM and 1 μA IR prevent DC error in precision 24 V measurement paths; 20 pF at 12 V bias avoids filtering effects on <10 kHz signals. |
Use Scenario: Adding board-level ESD protection to USB 2.0 upstream ports in embedded gateways or HMI panels. IC Role / Device Role / Timing Role: Two-line clamp on D+ and D− lines, using BiAs configuration with shared ground (pin 3). Use Value: 65–80 pF capacitance stays within USB 2.0 specification limit (max 100 pF), ensuring full-speed (480 Mbps) eye diagram compliance after ESD stress. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VGSOT24C-G3-08 | Same electrical specs and SOT-23 package; green (halogen-free) molding compound vs. standard UL 94 V-0 compound in GSOT24C-HE3-08. | Required where RoHS-compliant, halogen-free materials are mandated (e.g., EU medical devices, consumer electronics). | Select VGSOT24C-G3-08 when environmental compliance documentation (e.g., IPC-1752) is required; otherwise GSOT24C-HE3-08 offers identical protection performance. |
| SMF24A | Single-line unidirectional TVS (SMA package); 24 V VRWM, 5.5 A IPPM, but lacks dual-line capability and BiAs/BiSy flexibility. | Only suitable for single-ended 24 V lines; requires two devices for dual-line protection, increasing PCB area and BOM count. | Choose SMF24A only if space allows discrete placement and dual-line coordination is unnecessary; GSOT24C-HE3-08 provides integrated dual-path efficiency. |
Compared with VGSOT24C-G3-08, GSOT24C-HE3-08 uses standard molding compound and shares identical electrical ratings, making it preferable for cost-sensitive industrial designs without halogen restrictions; versus SMF24A, GSOT24C-HE3-08 reduces component count by 50% and enables coordinated dual-line clamping essential for differential buses.
Availability
GSOT24C-HE3-08 is available at Aetrix Electronics and suitable for industrial automation, automotive body electronics, and 24 V sensor interface designs requiring stable component supply through January 2025 (end-of-life date).
Supply support for GSOT24C-HE3-08 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 demanding industrial and automotive applications.
The GSOTxxC family was engineered specifically for compact, high-efficiency ESD and surge protection of data and signal lines in space-constrained environments, emphasizing low capacitance, precise clamping, and AEC-Q101 readiness.
FAQ
What is the maximum operating temperature for GSOT24C-HE3-08?
The GSOT24C-HE3-08 has a specified junction temperature range of −55 °C to +150 °C. This wide thermal envelope allows reliable operation in under-hood automotive locations, industrial motor control cabinets, and outdoor telecom equipment where ambient temperatures exceed 100 °C. The SOT-23 package's thermal resistance enables effective heat dissipation even at full 5 A surge duty.
Can GSOT24C-HE3-08 protect both differential and single-ended signal lines?
Yes - GSOT24C-HE3-08 supports two distinct configurations: BiAs-MODE (pins 1 & 2 to signal lines, pin 3 to ground) for differential or dual single-ended lines, and BiSy-MODE (pin 3 unconnected, pins 1 & 2 forming a single path) for symmetrical clamping on single-ended buses like LIN or analog inputs. Both modes are fully characterized in the GSOT24C-HE3-08 datasheet.
What is the clamping voltage of GSOT24C-HE3-08 at its rated 5 A peak pulse current?
At 5 A (8/20 μs waveform), the reverse clamping voltage (VC) of GSOT24C-HE3-08 is 41–47 V when tested between pin 1 and pin 3 (or pin 2 and pin 3). In BiSy mode (pin 1–2), VC is 40–48 V. These values ensure downstream 24 V-rated ICs remain within safe absolute maximum ratings during surge events.
Is GSOT24C-HE3-08 compliant with AEC-Q101 for automotive use?
The GSOT24C-HE3-08 itself is not AEC-Q101 qualified; however, the GSOT24C family includes AEC-Q101 variants (e.g., GSOT24C-HG3-08). GSOT24C-HE3-08 shares identical die and electrical characteristics but is manufactured under standard industrial qualification. For automotive production, specify the HG3 suffix variant.
How does the capacitance of GSOT24C-HE3-08 vary with applied reverse voltage?
GSOT24C-HE3-08 exhibits voltage-dependent capacitance: 65–80 pF at 0 V bias, dropping to 20 pF at 12 V reverse bias. This behavior minimizes signal loading on 24 V analog lines operating near VRWM, preserving bandwidth and reducing crosstalk in dense PCB layouts where multiple protected lines run in parallel.
GSOT24C-HE3-08 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:
- 2
- 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:
- -
- 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
GSOT24C-HE3-08 FAQ
1.How can I place an order for GSOT24C-HE3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT24C-HE3-08 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 GSOT24C-HE3-08 reliable?
The price and inventory of GSOT24C-HE3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GSOT24C-HE3-08 is usually 5 days.
3.What payment methods are accepted for GSOT24C-HE3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT24C-HE3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT24C-HE3-08?
GSOT24C-HE3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT24C-HE3-08 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 GSOT24C-HE3-08?
For technical support, including GSOT24C-HE3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT24C-HE3-08 requirements.
6.How does Aetrix verify that GSOT24C-HE3-08 is sourced from the original manufacturer or authorized distributors?
All GSOT24C-HE3-08 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 GSOT24C-HE3-08 meets industry standards.
7.What is the process for return or replacement of GSOT24C-HE3-08?
All GSOT24C-HE3-08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT24C-HE3-08, 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 GSOT24C-HE3-08 part is unused and in its original packaging.
Return procedure for GSOT24C-HE3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT24C-HE3-08 Tags
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