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Vishay General Semiconductor - Diodes Division GSOT36C-HE3-08
- Part No.:
- GSOT36C-HE3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
GSOT36C-HE3-08.pdf
- Description:
- TVS DIODE 36VWM 71VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:13,742
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Product details
Overview
GSOT36C-HE3-08 from Vishay Semiconductors is a two-line bidirectional asymmetrical ESD protection diode in SOT-23 package, rated for 36 V reverse stand-off voltage (VRWM), ±30 kV IEC 61000-4-2 ESD immunity, and 3.5 A peak pulse current (IPPM) per line to ground. It protects high-speed data lines such as USB 2.0 or CAN FD interfaces against transient overvoltage events.
For engineers reviewing the GSOT36C-HE3-08 datasheet, GSOT36C-HE3-08 pinout, GSOT36C-HE3-08 application, or GSOT36C-HE3-08 equivalent, key selection criteria include clamping voltage at 3.5 A (≤71 V), low 26–33 pF capacitance at 1 MHz under bias, AEC-Q101 qualification, and dual-mode BiAs/BiSy operation flexibility.
Technical Context
The GSOT36C-HE3-08 implements BiAs-MODE (Bidirectional Asymmetrical) protection when pins 1 and 2 connect to signal lines and pin 3 to ground-enabling independent clamping of positive transients via reverse breakdown and negative transients via forward conduction. Its asymmetry yields lower forward clamping (~1.3 V at 3.5 A) versus reverse clamping (~59–71 V).
In BiSy-MODE (single-line symmetrical), pin 3 is left unconnected and pins 1–2 form a bipolar path, delivering matched clamping in both polarities (e.g., 60–72 V at 3.5 A), with capacitance reduced to 26–33 pF-critical for >100 Mbps serial interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage (VRWM) | 36 V - maximum continuous DC or RMS signal voltage before leakage exceeds 1 μA; sets upper limit for protected bus voltage (e.g., 24 V industrial CAN). |
| Peak Pulse Current (IPPM) | 3.5 A per line (IEC 61000-4-5, 8/20 μs) - defines surge handling capability; sufficient for Level 4 automotive load dump immunity in auxiliary lines. |
| Clamping Voltage (VC) | ≤71 V at IPPM = 3.5 A (BiAs mode) - ensures downstream ICs with 75 V abs max rating remain within safe operating area during ESD events. |
| Capacitance (CD) | 26–33 pF at VR = 18 V, 1 MHz - low enough to avoid signal integrity degradation on 480 Mbps USB 2.0 or 5 Mbps CAN FD buses. |
| ESD Immunity | ±30 kV contact / ±30 kV air (IEC 61000-4-2) - exceeds IEC 61000-4-2 Level 4 requirement, enabling robust front-end protection for handheld and automotive ECUs. |
| AEC-Q101 Qualified | Yes - validated for automotive temperature range (−55 °C to +150 °C junction), supporting under-hood and infotainment module deployment. |
Pinout & Package
SOT-23 package (JEDEC TO-236AB), 3-pin surface-mount, 2.8 mm × 2.35 mm footprint, MSL level 1, lead (Pb)-free Sn plating (e3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Line 1 Anode/Cathode | Connects to first protected signal line (L1); forms one half of dual-channel ESD path to ground (pin 3) in BiAs mode. |
| Pin 2 | Line 2 Anode/Cathode | Connects to second protected signal line (L2); symmetrically mirrors pin 1 for parallel two-line protection. |
| Pin 3 | Ground Reference | Must be connected to system ground in BiAs mode; left floating in BiSy mode to enable single-line symmetrical clamping. |
Key Features
| Feature | Design Value |
|---|---|
| Two-line BiAs protection | Enables simultaneous protection of differential pairs (e.g., RS-485 A/B) with asymmetric clamping optimized for mixed-signal ICs. |
| Single-line BiSy configuration | Supports re-use as symmetrical protector for UART, LIN, or analog sensor lines without redesigning PCB layout. |
| Low 26–33 pF capacitance | Minimizes insertion loss and timing skew on high-speed digital lines up to 100 Mbps, preserving eye diagram integrity. |
| ±30 kV ESD rating | Eliminates need for secondary board-level ESD suppression in consumer and industrial USB/UART ports. |
| AEC-Q101 qualification | Validates reliability for automotive applications including body control modules and ADAS sensor interfaces. |
Applications
| USB 2.0 Data Lines | CAN FD Bus Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines of USB 2.0 host/device ports against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Two-line ESD clamp placed immediately after connector, shunting transients to chassis ground before reaching USB transceiver. Use Value: 26–33 pF capacitance avoids signal rise-time degradation; 36 V VRWM accommodates USB 2.0's 3.3 V nominal with margin for noise peaks. | Use Scenario: Safeguarding CAN FD high-speed (5 Mbps) differential pair in automotive gateway modules exposed to ISO 10605 pulses. IC Role / Device Role / Timing Role: Bidirectional asymmetrical clamp (BiAs) on CANH/CANL lines referenced to vehicle ground, limiting voltage excursions during load dump. Use Value: 3.5 A IPPM and ≤71 V clamping ensure CAN transceiver (e.g., TJA1057) stays within absolute max ratings during 100 ns ESD bursts. |
| Industrial RS-485 Transceivers | Automotive LIN Bus Nodes |
Use Scenario: Protecting A/B lines of isolated RS-485 transceivers (e.g., ADM2483) in factory automation PLCs subject to cable discharge events. IC Role / Device Role / Timing Role: Dual-channel ESD suppressor mounted at connector interface, with pin 3 tied to isolated ground plane. Use Value: 36 V VRWM matches RS-485 common-mode range; low leakage (<1 μA at 36 V) prevents bias current errors in precision receiver circuits. | Use Scenario: Securing LIN bus master/slave nodes in automotive door modules against ESD from human touch or harness coupling. IC Role / Device Role / Timing Role: Single-line BiSy configuration (pins 1–2 only) used on LIN signal line, with pin 3 unconnected to simplify routing. Use Value: 60–72 V clamping at 3.5 A protects LIN transceivers (e.g., TLE7259) while 26–33 pF capacitance maintains <20 kbps timing accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VGSOT36C | Successor device with identical SOT-23 package, same VRWM (36 V), and improved thermal performance; end-of-life notice for GSOT36C-HE3-08 effective Jan 2025. | Drop-in replacement for new designs; supports same BiAs/BiSy modes and pinout; qualified to latest AEC-Q101 revision. | Select VGSOT36C for long-term supply continuity and enhanced surge robustness in automotive programs. |
| SMF36A | Single-line unidirectional TVS (SOD-123), 36 V VRWM, 100 W peak power, but no dual-line or BiSy capability; higher capacitance (≈100 pF). | Limited to single-rail protection; requires separate devices per line; unsuitable for differential bus protection without added components. | Use SMF36A only for cost-sensitive non-differential applications where layout space allows discrete placement per line. |
Compared with VGSOT36C, the GSOT36C-HE3-08 offers identical electrical specs but lacks updated thermal derating curves and extended lifetime assurance; versus SMF36A, it delivers integrated dual-line protection with 60% lower capacitance-critical for high-speed buses-though at higher unit cost.
Availability
GSOT36C-HE3-08 is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive CAN FD node hardening, and industrial RS-485 transceiver safeguarding requiring stable component supply through Q2 2025.
Supply support for GSOT36C-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 diodes, MOSFETs, optoelectronics, and protection devices with emphasis on reliability and AEC-Q qualification.
The GSOTxxC family was designed specifically for high-density, low-capacitance ESD protection of high-speed data buses in automotive, industrial, and consumer electronics-balancing clamping performance, signal integrity, and package scalability.
FAQ
What is the maximum operating temperature for the GSOT36C-HE3-08?
The GSOT36C-HE3-08 has a junction temperature range of −55 °C to +150 °C, fully compliant with AEC-Q101 requirements for under-hood automotive applications. This rating is confirmed in the Absolute Maximum Ratings table on page 4 of Vishay document 85824, and applies across all operating modes (BiAs and BiSy).
Can the GSOT36C-HE3-08 be used in BiSy mode for single-line protection?
Yes, the GSOT36C-HE3-08 supports BiSy-MODE by leaving pin 3 unconnected and using pins 1 and 2 as a symmetrical bipolar clamp. In this configuration, it delivers matched clamping for both polarities (e.g., 60–72 V at 3.5 A) with 26–33 pF capacitance-ideal for LIN or UART lines where layout simplicity is prioritized over dual-line integration.
What is the reverse leakage current specification for the GSOT36C-HE3-08 at its rated VRWM?
At VR = 36 V and Tamb = 25 °C, the GSOT36C-HE3-08 exhibits a maximum reverse leakage current (IR) of 1 μA, as specified in the Electrical Characteristics table on page 8 of Vishay document 85824. This ultra-low leakage preserves signal integrity in high-impedance sensor or analog front-end circuits.
Is the GSOT36C-HE3-08 RoHS-compliant and lead-free?
Yes, the GSOT36C-HE3-08 carries the "HE3" suffix indicating RoHS-compliant, lead (Pb)-free construction with matte tin (Sn) plating (e3). This is explicitly stated in the Ordering Information table on page 1 and confirmed in the Environmental and Quality Code legend of Vishay document 85824.
What is the clamping voltage of the GSOT36C-HE3-08 at 1 A peak pulse current?
In BiAs mode (pins 1–3 or 2–3), the GSOT36C-HE3-08 clamps to ≤60 V at 1 A peak pulse current (IPP), per the Electrical Characteristics table on page 8 of Vishay document 85824. This low-voltage clamping at low currents helps protect sensitive logic inputs during early-stage ESD events before full surge develops.
GSOT36C-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):
- 36V (Max)
- 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:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
GSOT36C-HE3-08 FAQ
1.How can I place an order for GSOT36C-HE3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT36C-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 GSOT36C-HE3-08 reliable?
The price and inventory of GSOT36C-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 GSOT36C-HE3-08 is usually 5 days.
3.What payment methods are accepted for GSOT36C-HE3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT36C-HE3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT36C-HE3-08?
GSOT36C-HE3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT36C-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 GSOT36C-HE3-08?
For technical support, including GSOT36C-HE3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT36C-HE3-08 requirements.
6.How does Aetrix verify that GSOT36C-HE3-08 is sourced from the original manufacturer or authorized distributors?
All GSOT36C-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 GSOT36C-HE3-08 meets industry standards.
7.What is the process for return or replacement of GSOT36C-HE3-08?
All GSOT36C-HE3-08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT36C-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 GSOT36C-HE3-08 part is unused and in its original packaging.
Return procedure for GSOT36C-HE3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT36C-HE3-08 Tags
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