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Vishay General Semiconductor - Diodes Division GSOT24C-HT3-GS08
- Part No.:
- GSOT24C-HT3-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 3-WDFN
- Datasheet:
-
GSOT24C-HT3-GS08.pdf
- Description:
- TVS DIODE 24VWM 47VC LLP75-3B
- Quantity:
- Payment:
- Shipping:
Inventory:6,298
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Product details
Overview
GSOT24C-HT3-GS08 from Vishay Semiconductors is a two-line bidirectional asymmetrical (BiAs) ESD protection diode in LLP75-3B package, rated for ±30 kV IEC 61000-4-2 contact/air discharge, 24 V reverse standoff voltage (VRWM), and 5 A peak pulse current (IPPM) per path. It protects high-speed data lines such as USB 2.0, HDMI, or industrial serial interfaces against transient overvoltages.
For engineers reviewing the GSOT24C-HT3-GS08 datasheet, GSOT24C-HT3-GS08 pinout, GSOT24C-HT3-GS08 application, or GSOT24C-HT3-GS08 equivalent, this device offers verified BiAs-mode clamping with 41 V max reverse clamping at 5 A, low 65–80 pF capacitance at 0 V, and RoHS-compliant matte tin (e3) termination for high-reliability PCB layouts.
Technical Context
The GSOT24C-HT3-GS08 implements a dual-diode architecture enabling two independent protection paths (Pin 1–3 and Pin 2–3) when Pin 3 is grounded - supporting simultaneous protection of two signal lines. Its BiAs-mode operation delivers asymmetric clamping: low forward-voltage (≤1.4 V at 5 A) for negative transients and controlled reverse clamping (≤47 V at 5 A) for positive surges.
In BiSy-mode (Pin 1–2, Pin 3 open), it functions as a single symmetrical protector with 24.5 V VRWM and 40–48 V clamping at 5 A. Both modes operate across –40 °C to +125 °C junction temperature, with MSL Level 1 moisture sensitivity and UL 94 V-0 molding compound.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD immunity | ±30 kV contact & air discharge per IEC 61000-4-2 - meets highest system-level ESD robustness requirements without external shielding. |
| Reverse standoff voltage (VRWM) | 24 V at IR = 1 µA - supports 24 V nominal industrial bus lines (e.g., CAN FD, RS-485) while maintaining low leakage (<1 µA). |
| Peak pulse current (IPPM) | 5 A per path (8/20 µs waveform) - handles typical lightning-induced surges in factory automation and building control systems. |
| Reverse clamping voltage (VC) | ≤47 V at IPPM = 5 A - limits voltage stress on downstream 24 V-rated transceivers and microcontrollers during surge events. |
| Diode capacitance (CD) | 65–80 pF at 0 V, 20 pF at 12 V - preserves signal integrity on moderate-speed digital lines (≤10 Mbps) with minimal rise-time degradation. |
| Operating temperature | –40 °C to +125 °C TJ - qualified for under-hood automotive, industrial PLC, and outdoor telecom equipment deployments. |
| Package | LLP75-3B (1.6 × 1.6 × 0.55 mm) - ultra-compact footprint with 0.5 mm pitch, compatible with fine-pitch SMT reflow and automated optical inspection. |
Pinout & Package
GSOT24C-HT3-GS08 uses the LLP75-3B surface-mount package: 3-terminal, lead (Pb)-free matte tin (e3) finish, UL 94 V-0 molding compound, MSL Level 1, weight 5.1 mg.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Line 1 anode/cathode (BiAs mode) | Connects to first protected signal line (e.g., CAN_H); forms one half of dual-diode clamp to ground (Pin 3). |
| Pin 2 | Line 2 anode/cathode (BiAs mode) | Connects to second protected signal line (e.g., CAN_L); forms second half of dual-diode clamp to ground (Pin 3). |
| Pin 3 | Common cathode/anode (BiAs) or floating (BiSy) | Ground reference in BiAs mode; left unconnected in BiSy mode where Pin 1–2 provide symmetrical clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Two-line ESD protection | Single-device protection of two independent signal paths - reduces BOM count and PCB area vs. discrete diode arrays. |
| Bidirectional Asymmetrical (BiAs) clamping | Low VF (≤1.4 V) for negative transients + controlled VBR-based reverse clamping (≤47 V) - optimizes protection margin for 24 V systems. |
| Low capacitance at operating bias | 20 pF at 12 V reverse bias - minimizes loading on 24 V data lines like Profibus or Modbus RTU, preserving edge rates. |
| RoHS-compliant & green compound | e3 matte tin finish and UL 94 V-0 molding - satisfies environmental compliance for global industrial and automotive supply chains. |
| MSL Level 1 rating | Rated for 260 °C/10 s soldering - supports standard lead-free reflow profiles without baking or special handling. |
Applications
| Industrial CAN Bus Protection | 24 V RS-485 Interface Protection |
|---|---|
Use Scenario: Protecting CAN_H/CAN_L differential pair in factory automation controllers exposed to ESD from operator touch or relay switching noise. IC Role / Device Role / Timing Role: Two-line BiAs-mode ESD suppressor placed directly at connector entry, shunting transients to chassis ground before reaching CAN transceiver. Use Value: Maintains 24 V common-mode range while clamping fast ESD pulses to ≤47 V - prevents latch-up or damage in ISO 11898-2 compliant transceivers. |
Use Scenario: Safeguarding RS-485 nodes in building management systems where long cable runs induce surge coupling from nearby AC power lines. IC Role / Device Role / Timing Role: Dual-path protector on A/B lines referenced to local ground, absorbing 5 A 8/20 µs surges per line without degrading 10 Mbps signal fidelity. Use Value: 65–80 pF capacitance at DC bias ensures <1 ns added rise-time distortion - critical for error-free multi-drop communication over 1200 m cables. |
| 24 V Sensor Interface Protection | Outdoor Telecom Power-Line Monitoring |
Use Scenario: Shielding analog/digital sensor outputs (e.g., 4–20 mA loop-powered sensors) mounted in electrically noisy environments like substations or motor drives. IC Role / Device Role / Timing Role: BiAs-mode clamp on signal and return lines, referenced to system ground, suppressing both contact ESD and inductive kickback. Use Value: 1 µA max reverse leakage at 24 V ensures negligible impact on precision current-loop accuracy - maintains <0.1% full-scale error. |
Use Scenario: Protecting voltage-sensing inputs on smart grid meters monitoring 24 V auxiliary power rails subject to lightning-induced surges on adjacent conductors. IC Role / Device Role / Timing Role: Single BiSy-mode protector (Pin 1–2) across sense input, with Pin 3 unused - provides symmetrical ±24.5 V standoff and 40–48 V clamping. Use Value: 33–40 pF capacitance at 0 V enables stable ADC sampling without filtering-induced phase lag - essential for real-time power quality analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-E3/57T | Unidirectional 24 V TVS; 5.0 kW peak power; 100 pF @ 0 V; DO-214AC package (4.5 × 3.3 mm) | Requires two devices for dual-line protection; higher capacitance limits use on >5 Mbps lines; larger footprint increases layout complexity. | Choose for cost-sensitive, lower-speed applications where board space permits larger packages and unidirectional protection suffices. |
| TPD2EUSB30DRYR | 2-channel 3.3 V ESD protector; 0.7 pF @ 0 V; 3.6 V VRWM; 1.5 A IPPM; X2SON-6 package | Designed for USB 3.0 (5 Gbps); incompatible with 24 V systems due to low standoff voltage; insufficient surge rating for industrial transients. | Choose only for high-speed, low-voltage consumer interfaces - not suitable as functional replacement for GSOT24C-HT3-GS08 in 24 V industrial designs. |
Compared with SMAJ24A-E3/57T and TPD2EUSB30DRYR, GSOT24C-HT3-GS08 uniquely delivers integrated dual-line 24 V protection in a 1.6 mm² footprint with asymmetrical clamping optimized for industrial bus reliability - neither alternative matches its combination of voltage rating, compactness, and BiAs-mode functionality.
Availability
GSOT24C-HT3-GS08 is available at Aetrix Electronics and suitable for industrial automation, building control systems, and 24 V sensor interface designs requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for GSOT24C-HT3-GS08 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 industrial, automotive, and computing markets.
The GSOTxxC-HT3 family was designed specifically for compact, high-performance ESD protection of industrial data buses and sensor interfaces - emphasizing low capacitance, precise standoff voltage grading, and robust surge handling in miniature LLP packages.
FAQ
What protection modes does the GSOT24C-HT3-GS08 support?
The GSOT24C-HT3-GS08 supports two distinct protection configurations: Bidirectional Asymmetrical (BiAs) mode with Pin 3 grounded for dual-line protection (e.g., CAN_H/CAN_L), and Bidirectional Symmetrical (BiSy) mode with Pin 3 unconnected for single-line applications (e.g., RS-485 A/B). Each mode has verified clamping characteristics documented in the Vishay datasheet Document Number 85825 Rev. 1.7.
What is the maximum clamping voltage of GSOT24C-HT3-GS08 under surge conditions?
In BiAs mode (Pin 1–3 or Pin 2–3), the GSOT24C-HT3-GS08 exhibits a maximum reverse clamping voltage (VC) of 47 V at 5 A peak pulse current (8/20 µs waveform). In BiSy mode (Pin 1–2), the clamping voltage reaches up to 48 V at the same current level - values confirmed in the Electrical Characteristics table on page 8 of the official datasheet.
Can GSOT24C-HT3-GS08 be used on 24 V power rails?
No - GSOT24C-HT3-GS08 is designed exclusively for signal-line protection, not power-rail clamping. Its 24 V reverse standoff voltage (VRWM) and 5 A surge rating apply only to transient suppression on data/control lines. For 24 V power rail protection, a dedicated high-power TVS like SMAJ24A or SM8S24A is required; using GSOT24C-HT3-GS08 on power rails risks thermal failure.
What is the diode capacitance of GSOT24C-HT3-GS08 at operating bias?
The GSOT24C-HT3-GS08 has a capacitance of 65–80 pF at 0 V reverse bias (1 MHz), dropping to 20 pF at 12 V reverse bias. This voltage-dependent capacitance profile is specified in the "Electrical Characteristics" section (page 8) and enables effective high-frequency ESD suppression while minimizing signal distortion on 24 V industrial data lines.
Is GSOT24C-HT3-GS08 compatible with lead-free reflow processes?
Yes - GSOT24C-HT3-GS08 carries MSL Level 1 rating per J-STD-020 and is qualified for 260 °C peak solder temperature for 10 seconds at terminals. Its e3 matte tin (Sn) lead finish and LLP75-3B package are fully compatible with standard lead-free reflow profiles used in modern SMT assembly lines.
GSOT24C-HT3-GS08 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- 3-WDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V (Min)
- 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:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LLP75-3B
GSOT24C-HT3-GS08 FAQ
1.How can I place an order for GSOT24C-HT3-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT24C-HT3-GS08 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-HT3-GS08 reliable?
The price and inventory of GSOT24C-HT3-GS08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GSOT24C-HT3-GS08 is usually 5 days.
3.What payment methods are accepted for GSOT24C-HT3-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT24C-HT3-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT24C-HT3-GS08?
GSOT24C-HT3-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT24C-HT3-GS08 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-HT3-GS08?
For technical support, including GSOT24C-HT3-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT24C-HT3-GS08 requirements.
6.How does Aetrix verify that GSOT24C-HT3-GS08 is sourced from the original manufacturer or authorized distributors?
All GSOT24C-HT3-GS08 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-HT3-GS08 meets industry standards.
7.What is the process for return or replacement of GSOT24C-HT3-GS08?
All GSOT24C-HT3-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT24C-HT3-GS08, 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-HT3-GS08 part is unused and in its original packaging.
Return procedure for GSOT24C-HT3-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT24C-HT3-GS08 Tags
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