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Vishay General Semiconductor - Diodes Division VETH100A203SHG3-08
- Part No.:
- VETH100A203SHG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
VETH100A203SHG3-08.pdf
- Description:
- BIDIRECTIONAL DUAL LINE ESD PROT
- Quantity:
- Payment:
- Shipping:
Inventory:12,300
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Product details
Overview
VETH100A203SHG3-08 from Vishay Semiconductors is a two-line bidirectional ESD-protection diode in SOT-23 package, rated for ±24 V working voltage, >100 V trigger voltage, and <2 pF capacitance, designed specifically for Automotive Ethernet 100BASE-T1 and 1000BASE-T1 interfaces with AEC-Q101 qualification.
For engineers reviewing the VETH100A203SHG3-08 datasheet, VETH100A203SHG3-08 pinout, VETH100A203SHG3-08 application, or VETH100A203SHG3-08 equivalent, key selection criteria include snap-back clamping performance at 1 A TLP (VC ≤ 31 V), dynamic resistance ≤ 0.4 Ω, ISO 10605/IEC 61000-4-2 ±15 kV contact discharge immunity, and OPEN Alliance compliance for automotive unshielded twisted-pair networks.
Technical Context
The VETH100A203SHG3-08 implements a snap-back triggered silicon avalanche structure optimized for high-voltage transient suppression on differential Ethernet pairs. Its trigger voltage exceeds 100 V to avoid interference with normal signal swing while enabling low-clamping operation below 31 V at 1 A TLP current.
It delivers bidirectional protection across two independent channels with leakage current ≤ 0.1 μA at 24 V reverse bias, dynamic resistance ≤ 0.4 Ω in snap-back state, and capacitance of 1.75 pF (typ.) at 0 V bias and 1 MHz - ensuring minimal signal integrity impact on 100 Mbps and 1 Gbps automotive Ethernet links.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Protection Channels | 2 independent bidirectional lines - supports full-duplex 100BASE-T1/1000BASE-T1 differential pair protection |
| Working Voltage (VRWM) | ±24 V - compatible with automotive Ethernet common-mode voltage range and supply rail margins |
| Trigger Voltage (VT) | >100 V (TLP, 1 A) - prevents false triggering during normal signal operation up to ±24 V |
| Clamping Voltage (VC) | 31 V max at 1 A TLP - limits transient overvoltage to safe levels for PHY ICs and magnetics |
| Capacitance (CD) | 1.75 pF typ. at 0 V, 1 MHz - preserves signal integrity and meets IEEE 802.3bw/bp return loss requirements |
| ESD Immunity | ±15 kV contact discharge per ISO 10605 & IEC 61000-4-2 - satisfies automotive EMC test plans |
| Dynamic Resistance (rdyn) | 0.4 Ω typ. - ensures stable clamping voltage across pulse current variations |
Pinout & Package
SOT-23 package (Type Code 2S), 3-pin surface-mount device with standard footprint per Vishay document S8-V-3929.01-009; MSL Level 1, peak reflow temperature 260 °C, UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 | Channel 1 Anode / Cathode (bidirectional) | Connected to first Ethernet differential line (e.g., CH0+); symmetric conduction path for ±ESD events |
| Pin 2 | GND | Common ground reference for both protection channels; must be low-inductance connection to system chassis ground |
| Pin 3 | Channel 2 Anode / Cathode (bidirectional) | Connected to second Ethernet differential line (e.g., CH0−); enables dual-line protection without external components |
Key Features
| Feature | Design Value |
|---|---|
| OPEN Alliance 100BASE-T1/1000BASE-T1 Compliance | Validated per IEEE EMC Test Specifications for Suppression Devices - required for automotive Ethernet Tier-1 qualification |
| Snap-back Triggering | Enables low clamping voltage (≤31 V @ 1 A) only after >100 V transient - avoids interference with 24 V operating window |
| Sub-2 pF Capacitance | 1.75 pF typ. minimizes insertion loss and return loss degradation at 100 MHz–1 GHz - critical for 1 Gbps link margin |
| AEC-Q101 Qualification | Qualified for automotive underhood and cabin environments - supports -55 °C to +150 °C junction temperature operation |
| Low-Leakage Protection | 0.1 μA max IR at 24 V - prevents DC loading of Ethernet termination resistors and PHY bias networks |
Applications
| Automotive Ethernet Gateway | ADAS Camera Link |
|---|---|
Use Scenario: Protecting 1000BASE-T1 links between domain controller and central gateway in zonal architecture. IC Role / Device Role / Timing Role: Bidirectional ESD clamp on differential pair, placed adjacent to connector before magnetics. Use Value: Maintains signal integrity at 1 Gbps while surviving ±15 kV ESD events per ISO 10605 - eliminates PHY resets during vehicle assembly and service. |
Use Scenario: Shieldless camera-to-ECU connection in rear-view or surround-view systems using 100BASE-T1. IC Role / Device Role / Timing Role: Line-side transient suppressor on unshielded twisted-pair cable interface. Use Value: Enables use of cost-effective UTP cabling without compromising EMC robustness - validated per OPEN Alliance test plan for camera links. |
| Infotainment Head Unit | Vehicle OTA Update Interface |
Use Scenario: Securing Ethernet backhaul between head unit MCU and telematics control unit (TCU). IC Role / Device Role / Timing Role: Dual-channel ESD protection on differential data lanes supporting firmware updates and audio streaming. Use Value: Prevents latch-up or damage during hot-plug events and electrostatic handling - ensures uninterrupted infotainment operation in production and field. |
Use Scenario: Protecting 100BASE-T1 interface used for secure over-the-air software updates via cellular-connected TCU. IC Role / Device Role / Timing Role: Front-end transient guard on Ethernet PHY side of update channel. Use Value: Guarantees update reliability by preventing ESD-induced packet corruption or PHY lockup - required for ASAM MCD-2 MC compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SEMTECH RCLAMP0524P.TCT | Unidirectional configuration; 5.5 V VRWM; 0.3 pF capacitance; no AEC-Q101 or OPEN Alliance validation | Targeted at low-voltage consumer USB/MIPI interfaces - not rated for ±24 V automotive Ethernet operation | Select only for non-automotive, low-voltage, high-speed serial links where snap-back behavior is unnecessary |
| ON Semiconductor NUF2221MUTAG | 2-channel bidirectional; 5 V VRWM; 0.65 pF; AEC-Q101 qualified but not OPEN Alliance tested | Suitable for CAN FD or LIN bus protection - insufficient working voltage margin for 100BASE-T1 common-mode transients | Use where lower clamping voltage (<12 V) is prioritized over high-voltage tolerance - not compliant with IEEE 802.3bw EMC requirements |
Compared with RCLAMP0524P.TCT and NUF2221MUTAG, the VETH100A203SHG3-08 uniquely combines ±24 V working voltage, >100 V snap-back trigger, OPEN Alliance certification, and automotive-grade reliability - making it the only qualified solution for production 100BASE-T1/1000BASE-T1 physical layer protection.
Availability
VETH100A203SHG3-08 is available at Aetrix Electronics and suitable for automotive Ethernet gateway design, ADAS camera module integration, infotainment backhaul, and OTA update interface development requiring stable component supply and long-term lifecycle support.
Supply support for VETH100A203SHG3-08 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 Intertechnology is a global manufacturer of discrete semiconductors and passive components, specializing in high-reliability solutions for automotive, industrial, and computing markets with vertical integration from wafer fabrication to packaging.
The VETH100A203SHG3-08 belongs to Vishay's automotive-qualified ESD protection portfolio, engineered specifically to meet OPEN Alliance 100BASE-T1/1000BASE-T1 EMC requirements and replace legacy TVS arrays in next-generation vehicle Ethernet architectures.
FAQ
What is the maximum clamping voltage of the VETH100A203SHG3-08 under ESD stress?
The VETH100A203SHG3-08 clamps to 31 V maximum at 1 A transmission line pulse (TLP) with 100 ns pulse width. At 10 A TLP, clamping voltage rises to 34 V max. This low clamping level protects sensitive Ethernet PHY ICs while maintaining compatibility with 24 V automotive supply rails and common-mode voltage tolerances.
Is the VETH100A203SHG3-08 qualified for automotive underhood applications?
Yes, the VETH100A203SHG3-08 is AEC-Q101 qualified and rated for junction temperatures from -55 °C to +150 °C. Its SOT-23 package meets MSL Level 1 moisture sensitivity and supports peak reflow at 260 °C - fulfilling requirements for engine bay, transmission control, and other high-temperature automotive zones.
Does the VETH100A203SHG3-08 support both 100BASE-T1 and 1000BASE-T1 standards?
Yes, the VETH100A203SHG3-08 is explicitly validated per OPEN Alliance IEEE 100BASE-T1 and 1000BASE-T1 EMC Test Specifications for Suppression Devices. Its 1.75 pF capacitance, low insertion loss, and snap-back behavior ensure compliance with signal integrity and transient immunity requirements for both speeds.
How is the VETH100A203SHG3-08 configured for bidirectional protection?
The VETH100A203SHG3-08 uses an integrated dual-channel symmetric snap-back structure: Pin 1 and Pin 3 serve as bidirectional terminals for two independent Ethernet lines, while Pin 2 is the shared ground. Each channel conducts equally for positive and negative transients - eliminating need for external series resistors or polarity-aware layout.
What packaging and reel options are available for the VETH100A203SHG3-08?
The VETH100A203SHG3-08 ships in SOT-23 package on 8 mm carrier tape: standard option is 3,000 units per 7-inch reel (code "08"), with 10,000 units per 13-inch reel also available (code "18"). Both variants feature Sn (e3) lead plating and comply with RoHS and lead-free soldering standards.
VETH100A203SHG3-08 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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 2
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- 34V (Typ)
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 1.75pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
VETH100A203SHG3-08 FAQ
1.How can I place an order for VETH100A203SHG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for VETH100A203SHG3-08 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 VETH100A203SHG3-08 reliable?
The price and inventory of VETH100A203SHG3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for VETH100A203SHG3-08 is usually 5 days.
3.What payment methods are accepted for VETH100A203SHG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for VETH100A203SHG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for VETH100A203SHG3-08?
VETH100A203SHG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your VETH100A203SHG3-08 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 VETH100A203SHG3-08?
For technical support, including VETH100A203SHG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your VETH100A203SHG3-08 requirements.
6.How does Aetrix verify that VETH100A203SHG3-08 is sourced from the original manufacturer or authorized distributors?
All VETH100A203SHG3-08 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 VETH100A203SHG3-08 meets industry standards.
7.What is the process for return or replacement of VETH100A203SHG3-08?
All VETH100A203SHG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with VETH100A203SHG3-08, 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 VETH100A203SHG3-08 part is unused and in its original packaging.
Return procedure for VETH100A203SHG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
VETH100A203SHG3-08 Tags
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