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Vishay General Semiconductor - Diodes Division GSOT24-HT3-GS08
- Part No.:
- GSOT24-HT3-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 3-WDFN
- Datasheet:
-
GSOT24-HT3-GS08.pdf
- Description:
- TVS DIODE 24VWM 47VC LLP75-3B
- Quantity:
- Payment:
- Shipping:
Inventory:9,870
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Product details
Overview
GSOT24-HT3-GS08 from Vishay Semiconductors is a single-line bidirectional asymmetrical (BiAs) ESD protection diode in LLP75-3B package, rated for 24 V reverse standoff voltage (VRWM), 5 A peak pulse current (IPPM), and ±30 kV IEC 61000-4-2 ESD immunity. It protects high-speed data lines such as USB 2.0, HDMI, or industrial sensor interfaces against transient overvoltage events.
For engineers reviewing the GSOT24-HT3-GS08 datasheet, GSOT24-HT3-GS08 pinout, GSOT24-HT3-GS08 application, or GSOT24-HT3-GS08 equivalent, key selection criteria include clamping voltage at 5 A (41–47 V), low 65–80 pF capacitance at 0 V bias, BiAs-mode operation enabling ground-referenced signal protection, and LLP75-3B footprint compatibility with space-constrained PCB layouts.
Technical Context
The GSOT24-HT3-GS08 operates in BiAs (Bidirectional Asymmetrical) mode: pin 1 is grounded, pin 3 connects to the protected line, and pin 2 serves as internal connection point between protection paths. It provides asymmetric clamping-reverse breakdown at 27–30 V (VBR), forward conduction near 1.2 V (VF)-to minimize ground bounce during negative transients.
Its protection mechanism relies on controlled avalanche breakdown under positive transients and low-forward-voltage conduction under negative transients, delivering precise clamping at 41–47 V (VC) for 5 A pulses while maintaining <1 µA leakage at 24 V (IR). The device meets IEC 61000-4-5 (8/20 µs) surge immunity up to 235 W peak pulse power.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 24 V - Maximum continuous operating voltage before clamping begins; sets upper limit for protected signal swing. |
| Peak Pulse Current (IPPM) | 5 A - Maximum single-shot 8/20 µs surge current it safely shunts to ground without failure. |
| Reverse Clamping Voltage (VC) | 41–47 V at 5 A - Actual voltage seen by protected IC during worst-case positive ESD event; critical for downstream IC survival. |
| Capacitance (CD) | 65–80 pF at 0 V / 20 pF at 12 V - Low dynamic capacitance preserves signal integrity on high-speed lines like USB 2.0. |
| ESD Immunity | ±30 kV contact & air discharge per IEC 61000-4-2 - Full compliance with Level 4 system-level ESD robustness requirements. |
| Package | LLP75-3B - 1.6 × 1.6 × 0.55 mm surface-mount package with e3 matte tin finish; MSL level 1, RoHS-compliant. |
Pinout & Package
GSOT24-HT3-GS08 uses the LLP75-3B package: 3-terminal leadless plastic package with exposed thermal pad, dimensions 1.6 mm × 1.6 mm × 0.55 mm, pin 1 marked by dot, terminals arranged linearly (1–2–3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Ground reference | Connected directly to PCB ground plane; serves as return path for both positive and negative transient currents. |
| Pin 2 | Internal node | Not externally accessible; electrically ties cathode of forward diode and anode of reverse avalanche structure. |
| Pin 3 | Protected signal line | Connects to data/signal trace requiring ESD protection; voltage clamped relative to pin 1 during transients. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Asymmetrical (BiAs) clamping | Enables low forward-voltage clamping (~1.2 V) for negative transients and controlled avalanche clamping (~41–47 V) for positive transients-reducing ground noise and improving system-level ESD margin. |
| Low leakage current | <1 µA at 24 V VR - Minimizes DC loading on sensitive analog or low-power sensor inputs without affecting baseline operation. |
| Low capacitance at operating bias | 20 pF at 12 V reverse bias - Preserves signal rise/fall times and eye diagram integrity on 480 Mbps USB 2.0 or similar interfaces. |
| Robust surge handling | 235 W peak pulse power (8/20 µs) - Withstands multiple IEC 61000-4-5 surges without degradation, supporting industrial-grade reliability. |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Channels |
|---|---|
|
Use Scenario: Protecting differential USB 2.0 D+ and D− lines in portable docking stations against user-handling ESD. IC Role / Device Role / Timing Role: Signal-line ESD clamp placed immediately before USB transceiver IC input pins. Use Value: Prevents latch-up or gate oxide damage in USB PHY ICs while maintaining <100 ps propagation delay and minimal signal distortion due to 65–80 pF capacitance. |
Use Scenario: Safeguarding HDMI DDC (I²C) and CEC control lines in AV receivers exposed to frequent cable insertion/removal. IC Role / Device Role / Timing Role: Bidirectional clamp on 5 V-tolerant I²C bus lines, referenced to system ground. Use Value: Maintains I²C timing margins (400 kHz standard mode) with sub-1.2 V forward clamping, avoiding false ACK/NACK errors during ESD events. |
| Industrial Sensor Interfaces | Automotive Infotainment USB Ports |
|
Use Scenario: Shielding 24 V-rated analog sensor outputs (e.g., pressure transducers) in factory automation PLC modules. IC Role / Device Role / Timing Role: High-VRWM ESD protector on single-ended output line referenced to chassis ground. Use Value: Enables direct protection at sensor output stage without level-shifting, leveraging 24 V VRWM to avoid false triggering during normal 20–24 V operation. |
Use Scenario: Hardening front-panel USB charging/data ports in automotive head units against ESD in dry cabin environments. IC Role / Device Role / Timing Role: Primary ESD interface device meeting ISO 10605 (330 pF/330 Ω) and IEC 61000-4-2 requirements. Use Value: Delivers ±30 kV contact discharge immunity while operating across -40 °C to +125 °C junction temperature range, certified for automotive ambient conditions. |
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, DO-214AC package, 38.9 V VBR, 100 pF capacitance | Requires external series resistor for bidirectional behavior; unsuitable for low-capacitance high-speed lines | Use only where board space allows larger package and signal speed <10 Mbps |
| TPD2E001DRYR | 2-channel, 0.8 pF typical capacitance, 12 V VRWM, SOT-563 package | Lower VRWM limits use to 3.3 V systems; optimized for ultra-high-speed digital interfaces | Select when protecting dual low-voltage data lines (e.g., I²C, UART) with strict <1 pF budget |
Compared with SMAJ24A-E3/57T and TPD2E001DRYR, GSOT24-HT3-GS08 uniquely balances 24 V VRWM, 5 A surge rating, BiAs clamping, and 65–80 pF capacitance in a 1.6 mm × 1.6 mm footprint-making it optimal for industrial and automotive USB/HDMI interfaces where voltage margin, speed, and size are jointly constrained.
Availability
GSOT24-HT3-GS08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, industrial sensor signal conditioning, and automotive infotainment port hardening requiring stable component supply and long-term lifecycle support.
Supply support for GSOT24-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 protection devices with emphasis on automotive, industrial, and computing applications.
The GSOT-HT3 family was designed specifically for compact, high-performance ESD protection of single-ended data and signal lines in space-constrained, high-reliability systems-emphasizing BiAs clamping, low capacitance, and extended temperature operation.
FAQ
What is the maximum operating temperature range for GSOT24-HT3-GS08?
The GSOT24-HT3-GS08 supports a junction temperature range of -40 °C to +125 °C and storage temperature from -55 °C to +150 °C. This full industrial temperature capability ensures reliable operation in harsh environments such as automotive engine bays or industrial control cabinets where ambient temperatures exceed 85 °C. The GSOT24-HT3-GS08 maintains specified clamping performance across this entire range without derating.
Does GSOT24-HT3-GS08 require external components for basic ESD protection?
No, GSOT24-HT3-GS08 functions as a standalone ESD protection device with no external components required. Its integrated BiAs architecture enables direct placement between signal line (pin 3) and ground (pin 1), eliminating the need for series resistors or RC filters in most applications. Layout best practice is to minimize trace length between GSOT24-HT3-GS08 and protected IC input pins to preserve high-frequency transient response.
How does the BiAs mode of GSOT24-HT3-GS08 improve ESD protection compared to standard bidirectional TVS diodes?
GSOT24-HT3-GS08's BiAs (Bidirectional Asymmetrical) mode delivers ~1.2 V forward clamping during negative transients-minimizing ground bounce-and ~41–47 V reverse clamping during positive transients, precisely matched to 24 V system rails. Standard bidirectional TVS diodes clamp symmetrically (e.g., ±30 V), causing excessive voltage overshoot on positive edges or unnecessary stress on low-voltage logic. The GSOT24-HT3-GS08 thus improves system-level immunity without compromising signal integrity.
What is the moisture sensitivity level (MSL) rating for GSOT24-HT3-GS08?
GSOT24-HT3-GS08 is rated MSL level 1 per J-STD-020, meaning it has unlimited floor life at ≤30 °C/85 % RH and can be reflow soldered at 260 °C for 10 seconds at terminals without baking. This eliminates moisture-related popcorning risk and simplifies manufacturing for high-volume SMT assembly lines using standard lead-free reflow profiles.
Can GSOT24-HT3-GS08 protect high-speed differential signals like USB 2.0 without degrading signal integrity?
Yes, GSOT24-HT3-GS08 is qualified for USB 2.0 protection with 65–80 pF capacitance at 0 V and only 20 pF at 12 V reverse bias-well within the <100 pF budget recommended for 480 Mbps signaling. Its low 1.2 V forward voltage and fast response time (<1 ns) prevent jitter accumulation or eye closure. When placed per USB 2.0 layout guidelines (short traces, ground stitching), the GSOT24-HT3-GS08 maintains signal fidelity while delivering ±30 kV ESD immunity.
GSOT24-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:
- 1
- 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
GSOT24-HT3-GS08 FAQ
1.How can I place an order for GSOT24-HT3-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT24-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 GSOT24-HT3-GS08 reliable?
The price and inventory of GSOT24-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 GSOT24-HT3-GS08 is usually 5 days.
3.What payment methods are accepted for GSOT24-HT3-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT24-HT3-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT24-HT3-GS08?
GSOT24-HT3-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT24-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 GSOT24-HT3-GS08?
For technical support, including GSOT24-HT3-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT24-HT3-GS08 requirements.
6.How does Aetrix verify that GSOT24-HT3-GS08 is sourced from the original manufacturer or authorized distributors?
All GSOT24-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 GSOT24-HT3-GS08 meets industry standards.
7.What is the process for return or replacement of GSOT24-HT3-GS08?
All GSOT24-HT3-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT24-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 GSOT24-HT3-GS08 part is unused and in its original packaging.
Return procedure for GSOT24-HT3-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT24-HT3-GS08 Tags
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