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Vishay General Semiconductor - Diodes Division GSOT36C-HT3-GS08
- Part No.:
- GSOT36C-HT3-GS08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- 3-WDFN
- Datasheet:
-
GSOT36C-HT3-GS08.pdf
- Description:
- TVS DIODE 36VWM 71VC LLP75-3B
- Quantity:
- Payment:
- Shipping:
Inventory:2,850
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Product details
Overview
GSOT36C-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, 36 V reverse standoff voltage (VRWM), and 3.5 A peak pulse current (IPPM) per line to ground. It protects high-speed data lines such as USB 2.0, HDMI, or industrial serial interfaces against electrostatic discharge events.
For engineers reviewing the GSOT36C-HT3-GS08 datasheet, GSOT36C-HT3-GS08 pinout, GSOT36C-HT3-GS08 application, or GSOT36C-HT3-GS08 equivalent, this device delivers low clamping voltage (VC = 59–71 V at IPPM), sub-1.3 V forward clamping, and 52–65 pF capacitance at 0 V bias - critical for preserving signal integrity in 36 V-rated interface protection.
Technical Context
The GSOT36C-HT3-GS08 operates in BiAs mode (pin 1–3 and pin 2–3 paths to ground) for dual-line protection with asymmetrical clamping: reverse breakdown at 39–43 V and forward clamping near 1.3 V. Its internal dual-diode structure enables independent transient suppression on two signal lines sharing a common ground reference.
In BiSy mode (pin 1–2 only, pin 3 open), it functions as a single-line symmetrical protector with VRWM = 36.5 V and VC = 60–72 V at 3.5 A, leveraging matched diode pairs for balanced positive/negative transient response - suitable for RS-485 or CAN FD bus lines requiring bipolar surge immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Immunity | ±30 kV contact & air discharge (IEC 61000-4-2); meets Level 4 system-level ESD robustness without external shielding. |
| Reverse Standoff Voltage (VRWM) | 36 V at IR = 1 µA; ensures no leakage or conduction during normal 36 V interface operation (e.g., automotive LIN, industrial 24–48 V buses). |
| Peak Pulse Current (IPPM) | 3.5 A per line (8/20 µs waveform); sustains transient energy up to 252 W (pin 1–2 path) without failure. |
| Clamping Voltage (VC) | 59–71 V at IPPM = 3.5 A (BiAs mode); limits downstream IC stress below 71 V during worst-case surge. |
| Diode Capacitance (CD) | 52–65 pF at 0 V / 1 MHz; low enough for <100 Mbps data rates in USB 2.0 or RS-422 applications. |
| Operating Temperature | −40 °C to +125 °C junction; qualified for under-hood automotive and industrial control environments. |
Pinout & Package
Package: LLP75-3B - 3-pin leadless plastic package (1.2 × 0.8 × 0.5 mm), MSL level 1, matte tin (e3) finish, RoHS-compliant, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Signal Line 1 Anode/Cathode | Input for first protected line (L1); connects to diode anode in BiSy mode or cathode in BiAs mode to ground (pin 3). |
| Pin 2 | Signal Line 2 Anode/Cathode | Input for second protected line (L2); symmetrically structured to Pin 1 for dual-line protection. |
| Pin 3 | Ground Reference | Common cathode connection point in BiAs mode; must be tied to system ground for dual-line clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Asymmetrical (BiAs) Protection | Enables independent 36 V standoff on two signal lines with low forward clamping (~1.3 V) and controlled reverse clamping (≤71 V), minimizing voltage overshoot on sensitive receivers. |
| Low Capacitance (52–65 pF) | Preserves signal edge rate and eye diagram integrity in high-speed digital interfaces up to 100 Mbps without added termination or equalization. |
| Space-Saving LLP75-3B Package | 0.96 mm² footprint supports dense PCB layouts in portable electronics and automotive ECUs where board area is constrained. |
| Lead (Pb)-Free & RoHS-Compliant | Matte tin (e3) termination and green molding compound meet global environmental compliance requirements for consumer and industrial shipments. |
Applications
| USB 2.0 Interface Protection | HDMI DDC Channel Protection |
|---|---|
Use Scenario: Protecting USB 2.0 data lines (D+, D−) from ESD events during hot-plug insertion in industrial docking stations. IC Role / Device Role / Timing Role: Two-line ESD clamp placed directly at connector, shunting transients to chassis ground before reaching USB transceiver. Use Value: Maintains 480 Mbps signaling integrity with <65 pF loading while surviving ±30 kV contact discharge per IEC 61000-4-2. |
Use Scenario: Safeguarding HDMI Display Data Channel (DDC) lines (SCL/SDA) against ESD in commercial AV equipment. IC Role / Device Role / Timing Role: Dual-line protector on 5 V-tolerant I²C bus, operating in BiAs mode with pin 3 grounded to suppress both positive and negative transients. Use Value: Prevents latch-up or damage to HDMI source/sink EEPROMs with 36 V VRWM margin over 5 V logic rails and low 1.3 V forward clamping. |
| Automotive LIN Bus Protection | Industrial RS-485 Transceiver Protection |
Use Scenario: Securing LIN bus physical layer in body control modules exposed to 12 V battery transients and ESD in vehicle assembly. IC Role / Device Role / Timing Role: BiAs-mode protector on LIN signal line and ground return, leveraging 36 V VRWM to withstand load-dump spikes up to 40 V. Use Value: Ensures uninterrupted 20 kbps communication by clamping surges to ≤71 V while drawing <1 µA leakage at 12 V nominal supply. |
Use Scenario: Hardening RS-485 transceivers in factory automation systems against ESD and lightning-induced surges on twisted-pair cables. IC Role / Device Role / Timing Role: Used in BiSy mode (pin 1–2) to provide symmetrical ±36.5 V standoff and 60–72 V clamping on differential A/B lines. Use Value: Supports fail-safe operation across −40 °C to +125 °C with MSL level 1 reflow compatibility and no derating required for 3.5 A surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | Single-line unidirectional TVS; 36 V VBR, 100 W peak power, DO-214AC package (larger, higher inductance). | Requires two devices for dual-line protection; lacks integrated dual-path architecture and low-capacitance optimization. | Choose when discrete layout flexibility is prioritized over space-constrained designs or when unidirectional clamping suffices. |
| TPD2E001DRYR | Two-line ESD protector; 5 V VRWM, 10 pF capacitance, SOT-553 package; lower voltage rating and smaller footprint. | Not suitable for 36 V systems; optimized for USB/MIPI in mobile devices, not industrial or automotive 24–48 V interfaces. | Choose only for low-voltage, ultra-high-speed (<1 Gbps) applications where sub-10 pF loading is mandatory. |
Compared with SMAJ36A-E3/57T and TPD2E001DRYR, the GSOT36C-HT3-GS08 uniquely combines dual-line BiAs/BiSy configurability, 36 V standoff, ±30 kV ESD rating, and 52–65 pF capacitance in a 1.2 × 0.8 mm LLP75-3B package - making it the only option qualified for compact, high-voltage, multi-protocol interface protection without design trade-offs.
Availability
GSOT36C-HT3-GS08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive LIN bus hardening, and industrial RS-485 transceiver safeguarding requiring stable component supply and long-term lifecycle continuity.
Supply support for GSOT36C-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, and protection devices engineered for automotive, industrial, and computing applications.
The GSOT36C-HT3-GS08 belongs to Vishay's GSOTxxC-HT3 family of two-line ESD protectors designed specifically for space-constrained, high-voltage interface circuits requiring IEC 61000-4-2 Level 4 immunity and minimal signal distortion.
FAQ
What protection modes does the GSOT36C-HT3-GS08 support?
The GSOT36C-HT3-GS08 supports two distinct protection configurations: Bidirectional Asymmetrical (BiAs) mode with pins 1 and 2 connected to separate signal lines and pin 3 grounded - enabling independent 36 V standoff and low forward clamping; and Bidirectional Symmetrical (BiSy) mode with pin 3 left unconnected and pins 1–2 used as a single differential path - delivering balanced ±36.5 V clamping for RS-485 or CAN FD. Both modes are validated in the official Vishay datasheet (Doc. #85825, Rev. 1.7).
What is the maximum clamping voltage of the GSOT36C-HT3-GS08 under full-rated surge current?
Under IEC 61000-4-5 8/20 µs surge conditions at its rated peak pulse current of 3.5 A, the GSOT36C-HT3-GS08 exhibits a reverse clamping voltage (VC) of 59–71 V in BiAs mode (pins 1–3 or 2–3) and 60–72 V in BiSy mode (pins 1–2). These values are measured per Vishay's datasheet (Document 85825, page 8), ensuring downstream ICs remain within safe voltage limits during worst-case transients.
Can the GSOT36C-HT3-GS08 be used in automotive under-hood applications?
Yes, the GSOT36C-HT3-GS08 is qualified for automotive under-hood use: it operates across −40 °C to +125 °C junction temperature, carries AEC-Q200-recognized construction (LLP75-3B package, e3 matte tin finish), and meets IEC 61000-4-2 ±30 kV ESD immunity - satisfying key requirements for engine control units, body modules, and LIN bus nodes. Its 36 V VRWM provides margin above 12 V/24 V battery systems during load-dump events.
How does the capacitance of GSOT36C-HT3-GS08 affect high-speed signal integrity?
The GSOT36C-HT3-GS08 exhibits 52–65 pF capacitance at 0 V bias (1 MHz), dropping to 12 pF at 18 V reverse bias. This low, voltage-dependent capacitance minimizes signal rise-time degradation and jitter in interfaces up to 100 Mbps (e.g., USB 2.0, RS-422), as confirmed in Vishay's electrical characteristics table (page 8). Unlike higher-capacitance TVS arrays, it avoids RC filtering that distorts eye diagrams or necessitates receiver equalization.
Is the GSOT36C-HT3-GS08 compatible with lead-free reflow soldering processes?
Yes, the GSOT36C-HT3-GS08 is fully compatible with lead-free reflow soldering: its LLP75-3B package is rated MSL level 1 per J-STD-020, with a maximum peak temperature tolerance of 260 °C for 10 seconds at terminals. The matte tin (e3) lead finish and UL 94 V-0 green molding compound ensure reliable wetting and thermal stability during standard Pb-free reflow profiles used in industrial and automotive manufacturing.
GSOT36C-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):
- 36V (Min)
- Voltage - Breakdown (Min):
- 39V
- Voltage - Clamping (Max) @ Ipp:
- 71V
- Current - Peak Pulse (10/1000µs):
- 3.5A (8/20µs)
- Power - Peak Pulse:
- 248W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 52pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- LLP75-3B
GSOT36C-HT3-GS08 FAQ
1.How can I place an order for GSOT36C-HT3-GS08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT36C-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 GSOT36C-HT3-GS08 reliable?
The price and inventory of GSOT36C-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 GSOT36C-HT3-GS08 is usually 5 days.
3.What payment methods are accepted for GSOT36C-HT3-GS08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT36C-HT3-GS08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT36C-HT3-GS08?
GSOT36C-HT3-GS08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT36C-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 GSOT36C-HT3-GS08?
For technical support, including GSOT36C-HT3-GS08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT36C-HT3-GS08 requirements.
6.How does Aetrix verify that GSOT36C-HT3-GS08 is sourced from the original manufacturer or authorized distributors?
All GSOT36C-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 GSOT36C-HT3-GS08 meets industry standards.
7.What is the process for return or replacement of GSOT36C-HT3-GS08?
All GSOT36C-HT3-GS08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT36C-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 GSOT36C-HT3-GS08 part is unused and in its original packaging.
Return procedure for GSOT36C-HT3-GS08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT36C-HT3-GS08 Tags
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