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Vishay General Semiconductor - Diodes Division GSOT36C-G3-08
- Part No.:
- GSOT36C-G3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
GSOT36C-G3-08.pdf
- Description:
- TVS DIODE 36VWM 71VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:8,605
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Product details
Overview
GSOT36C-G3-08 from Vishay Semiconductors is a two-line bidirectional asymmetrical ESD protection diode in SOT-23 package, rated for ±30 kV IEC 61000-4-2 contact/air discharge, 36 V reverse stand-off voltage (VRWM), and 3.5 A peak pulse current (IPPM), used to safeguard high-voltage data lines such as RS-485, CAN FD, or industrial Ethernet interfaces.
For engineers reviewing the GSOT36C-G3-08 datasheet, GSOT36C-G3-08 pinout, GSOT36C-G3-08 application, or GSOT36C-G3-08 equivalent, key selection factors include its BiAs-mode dual-line clamping behavior, low 1 μA reverse leakage at 36 V, 52–65 pF capacitance at 0 V bias, AEC-Q101 qualification option, and SOT-23 footprint compatibility with space-constrained PCB layouts.
Technical Context
The GSOT36C-G3-08 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 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 at 3.5 A).
It also supports BiSy-MODE (Bidirectional Symmetrical) operation when pin 3 is left unconnected and pins 1–2 form a single protected line, delivering matched positive/negative clamping via series diode conduction paths - useful for balanced analog or differential bus applications requiring symmetrical transient suppression.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| ESD Rating | ±30 kV contact & air discharge per IEC 61000-4-2 - meets highest system-level ESD immunity requirements for industrial and automotive ports. |
| VRWM | 36 V max reverse working voltage - protects 24–36 V industrial buses (e.g., Profibus, CAN FD) without leakage-induced signal distortion. |
| IPPM | 3.5 A peak pulse current (8/20 μs) - handles moderate surge events in wired communication interfaces with margin for repetitive transients. |
| Clamping Voltage VC | 59–71 V at IPPM = 3.5 A (pin 1–3 or 2–3) - limits voltage seen by downstream PHY ICs during surge, preserving 36 V-rated receivers. |
| Capacitance CD | 52–65 pF at 0 V, 12 pF at 18 V - low enough for ≤10 Mbps RS-485/CAN while minimizing signal rise-time degradation. |
| Reverse Leakage IR | ≤1 μA at 36 V - negligible loading on high-impedance sensor or control lines, avoiding DC offset or power loss. |
| Package | SOT-23 (JEDEC TO-236) - industry-standard 3-pin footprint enabling drop-in replacement and automated assembly in dense layouts. |
Pinout & Package
SOT-23 package: 3-pin surface-mount plastic case, 2.8 × 2.35 × 1.15 mm body, gull-wing leads, MSL level 1, lead-free (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 leg of BiAs protection path to ground (pin 3). |
| Pin 2 | Line 2 Anode / Cathode | Connects to second protected signal line (L2); forms second leg of BiAs protection path to ground (pin 3). |
| Pin 3 | Ground Reference | Must be connected to system ground plane; serves as common return for both protection diodes in BiAs mode. |
Key Features
| Feature | Design Value |
|---|---|
| BiAs-MODE dual-line protection | Simultaneously safeguards two independent data lines (e.g., RS-485 A/B) with shared ground reference, reducing component count vs. discrete diodes. |
| Low clamping in forward direction | Forward clamping ≤1.3 V at 3.5 A ensures negative transients are suppressed near ground potential, protecting CMOS inputs from latch-up. |
| AEC-Q101 qualified variant available | Supports automotive-grade deployment in infotainment, ADAS camera links, or body control modules requiring validated reliability. |
| Voltage-selectable family | GSOTxxC series spans 3.3 V to 36 V VRWM - GSOT36C-G3-08 enables direct matching to 36 V system rails without derating. |
| Green RoHS-compliant packaging | e3 Sn plating and halogen-free molding compound meet global environmental compliance mandates for industrial and consumer electronics. |
Applications
| Industrial RS-485 Interface | Automotive CAN FD Bus |
|---|---|
Use Scenario: Protecting half-duplex RS-485 transceivers in factory automation PLCs exposed to cable discharge events and EFT bursts. IC Role / Device Role / Timing Role: Two-line ESD clamp placed directly at connector entry point, shunting transients before they reach the transceiver's A/B pins. Use Value: Maintains signal integrity up to 10 Mbps while surviving ±30 kV ESD strikes - eliminates need for external TVS arrays or layout-intensive guard rings. | Use Scenario: Safeguarding high-speed CAN FD nodes (5 Mbps) in vehicle ECUs against battery dump and load-switch induced surges. IC Role / Device Role / Timing Role: BiAs-mode protector on CAN_H/CAN_L lines referenced to chassis ground, absorbing asymmetric transients typical in 12 V/24 V systems. Use Value: 36 V VRWM matches CAN FD's extended common-mode range; low 12 pF capacitance at 18 V bias avoids signal edge rounding at 5 Mbps. |
| Smart Grid Metering Port | Industrial Ethernet PHY Interface |
Use Scenario: Securing optical isolator-coupled RS-485 ports on smart electricity meters installed in outdoor substations. IC Role / Device Role / Timing Role: Primary ESD barrier at meter's external COM port, operating across -40 °C to +85 °C ambient with no derating. Use Value: -55 °C to +150 °C junction temperature rating ensures long-term reliability in thermally cycling enclosures; 1 μA leakage prevents metering accuracy drift. | Use Scenario: Protecting 100BASE-TX PHY differential pairs in industrial switches subjected to lightning-induced surges on PoE-enabled UTP cables. IC Role / Device Role / Timing Role: Dual-channel clamp on MDI pair (TX+/TX-, RX+/RX-) using BiAs configuration with shared ground return. Use Value: 248–252 W peak pulse power (8/20 μs) withstands IEC 61000-4-5 Level 3 surges; SOT-23 footprint allows placement within 5 mm of RJ45 jack. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VGSOT36C-G3-08 | Successor device with identical SOT-23 footprint, same 36 V VRWM and ±30 kV ESD rating, but improved thermal robustness and extended lifecycle beyond January 2025. | Drop-in replacement for new designs; supports same BiAs/BiSy modes and pinout; qualified for AEC-Q101 without optional suffix. | Select VGSOT36C-G3-08 for production programs requiring post-2025 availability and enhanced surge endurance. |
| SMAJ36A | Single-line 36 V unidirectional TVS in DO-214AC package; 400 W peak power; higher 150 pF capacitance; no dual-line integration. | Requires two devices plus routing for dual-line protection; unsuitable for space-constrained or high-speed (>1 Mbps) interfaces due to capacitance. | Use SMAJ36A only when board area is unconstrained and cost-per-line is prioritized over integration and signal fidelity. |
Compared with GSOT36C-G3-08, VGSOT36C-G3-08 offers guaranteed supply continuity past EOL and refined surge handling, while SMAJ36A provides higher single-line power rating at the expense of layout complexity, speed limitation, and lack of integrated dual-path architecture.
Availability
GSOT36C-G3-08 is available at Aetrix Electronics and suitable for industrial RS-485 interfaces, automotive CAN FD nodes, and smart grid metering ports requiring stable component supply through end-of-life in January 2025.
Supply support for GSOT36C-G3-08 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 industrial, automotive, and computing markets.
The GSOTxxC family was engineered specifically for compact, high-voltage ESD protection of differential data buses - balancing low capacitance, precise clamping symmetry/asymmetry, and rugged surge performance in standard SOT-23 packaging.
FAQ
What protection modes does the GSOT36C-G3-08 support?
The GSOT36C-G3-08 supports two distinct protection configurations: BiAs-MODE (Bidirectional Asymmetrical) when pin 3 is grounded and pins 1/2 protect separate lines, delivering different forward/reverse clamping voltages; and BiSy-MODE (Bidirectional Symmetrical) when pin 3 is left floating and pins 1–2 protect a single line, providing matched clamping in both polarities. Both modes are explicitly documented in the GSOT36C-G3-08 datasheet.
What is the maximum operating temperature for GSOT36C-G3-08?
The GSOT36C-G3-08 has a junction temperature range of -55 °C to +150 °C and a storage temperature range of -55 °C to +150 °C, enabling reliable operation in harsh environments such as under-hood automotive locations, industrial motor drives, and outdoor utility equipment where thermal extremes occur.
Is GSOT36C-G3-08 qualified to AEC-Q101?
The GSOT36C-G3-08 itself is not AEC-Q101 qualified; however, the GSOT36C family includes AEC-Q101 qualified variants (e.g., GSOT36C-HE3-08), and the successor part VGSOT36C-G3-08 is AEC-Q101 qualified without requiring a special suffix. For automotive applications requiring qualification, VGSOT36C-G3-08 is the recommended drop-in alternative.
How does GSOT36C-G3-08 compare to GSOT05C-G3-08 in terms of voltage rating?
The GSOT36C-G3-08 has a 36 V maximum reverse working voltage (VRWM), making it suitable for 24–36 V industrial buses, whereas the GSOT05C-G3-08 is rated for 5 V VRWM and targets USB, HDMI, or low-voltage logic interfaces. Their clamping voltages, capacitance, and surge ratings differ significantly - GSOT36C-G3-08 delivers 59–71 V clamping at 3.5 A, while GSOT05C-G3-08 clamps at 12–16 V at 30 A.
What is the lead finish and moisture sensitivity level of GSOT36C-G3-08?
The GSOT36C-G3-08 features e3 matte tin (Sn) lead finish per J-STD-020, and is rated MSL level 1 - meaning it has unlimited floor life at ≤30 °C/85 % RH and requires no baking prior to reflow soldering, simplifying manufacturing for high-volume SMT lines.
GSOT36C-G3-08 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:
- General Purpose
- Capacitance @ Frequency:
- 52pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
GSOT36C-G3-08 FAQ
1.How can I place an order for GSOT36C-G3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT36C-G3-08 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-G3-08 reliable?
The price and inventory of GSOT36C-G3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GSOT36C-G3-08 is usually 5 days.
3.What payment methods are accepted for GSOT36C-G3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT36C-G3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT36C-G3-08?
GSOT36C-G3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT36C-G3-08 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-G3-08?
For technical support, including GSOT36C-G3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT36C-G3-08 requirements.
6.How does Aetrix verify that GSOT36C-G3-08 is sourced from the original manufacturer or authorized distributors?
All GSOT36C-G3-08 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-G3-08 meets industry standards.
7.What is the process for return or replacement of GSOT36C-G3-08?
All GSOT36C-G3-08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT36C-G3-08, 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-G3-08 part is unused and in its original packaging.
Return procedure for GSOT36C-G3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT36C-G3-08 Tags
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