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Vishay General Semiconductor - Diodes Division GSOT12C-HG3-08
- Part No.:
- GSOT12C-HG3-08
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
GSOT12C-HG3-08.pdf
- Description:
- TVS DIODE 12VWM 26VC SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:14,950
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Product details
Overview
GSOT12C-HG3-08 from Vishay Semiconductors is a two-line bidirectional asymmetrical ESD protection diode in SOT-23 package, rated for 12 V reverse stand-off voltage (VRWM), ±30 kV IEC 61000-4-2 ESD immunity, and 12 A peak pulse current (IPPM) per line to ground. It delivers 21.2 V clamping voltage at 12 A and 115 pF capacitance at 0 V bias, targeting high-speed data lines in automotive infotainment and industrial USB interfaces.
For engineers reviewing the GSOT12C-HG3-08 datasheet, GSOT12C-HG3-08 pinout, GSOT12C-HG3-08 application, or GSOT12C-HG3-08 equivalent, key selection criteria include VRWM matching system rail voltage, clamping voltage margin below IC absolute maximum ratings, low capacitance for signal integrity, and AEC-Q101 qualification for automotive deployment.
Technical Context
GSOT12C-HG3-08 operates in BiAs-MODE (Bidirectional Asymmetrical), with pins 1 and 2 protecting separate signal lines referenced to pin 3 (ground). Each protection path features distinct forward (VF ≈ 1.0–2.2 V) and reverse (VC ≈ 21.2–26.0 V at IPPM) clamping behavior, enabling precise transient suppression without DC loading on data lines.
It supports dual configuration modes: two-line protection (pin 3 grounded, pins 1/2 to signals) and single-line symmetrical protection (pin 3 unconnected, pins 1/2 across line-to-ground). The device meets AEC-Q101 stress testing and is RoHS-compliant with Sn plating (e3).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Stand-off Voltage (VRWM) | 12 V - Maximum continuous operating voltage before conduction; sets upper limit for protected signal rail. |
| Peak Pulse Current (IPPM) | 12 A per line-to-ground path - Withstands 8/20 μs surges per IEC 61000-4-5 without failure. |
| Clamping Voltage (VC) | 21.2 V max at 12 A - Limits transient voltage seen by downstream ICs; critical for 15 V-tolerant interface protection. |
| ESD Immunity | ±30 kV contact / ±30 kV air discharge - Meets highest IEC 61000-4-2 level for robust system-level ESD resilience. |
| Capacitance (CD) | 115 pF typical at 0 V - Low enough for USB 2.0 (480 Mbps) and CAN FD (5 Mbps) signal integrity. |
| Leakage Current (IR) | 1 μA max at 12 V - Ensures minimal power loss and no measurable impact on high-impedance sensor inputs. |
| Operating Temperature | −55 °C to +150 °C - Supports under-hood automotive and industrial environments without derating. |
Pinout & Package
SOT-23 package (JEDEC TO-236AB), 3-pin, surface-mount, e3 Sn-plated terminals, MSL Level 1, 8.8 mg weight, 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 half of bidirectional asymmetrical clamp to ground. |
| Pin 2 | Line 2 Anode/Cathode | Connects to second protected signal line (L2); independent clamp path identical to Pin 1. |
| Pin 3 | Ground Reference | Must be connected to system ground for BiAs-MODE operation; left floating for BiSy-MODE single-line use. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional Asymmetrical Clamping (BiAs) | Enables independent, low-VF negative clamping and controlled VC for positive transients-ideal for mixed-signal data lines. |
| AEC-Q101 Qualified | Validated for automotive applications including infotainment, body control modules, and ADAS sensor interfaces. |
| Low Capacitance (115 pF) | Maintains signal rise/fall times and eye diagram integrity on USB, RS-485, and CAN bus lines up to 5 Mbps. |
| Space-Saving SOT-23 | Reduces PCB area vs. discrete dual-diode solutions while preserving thermal performance and layout simplicity. |
| e3 Sn Plating | Lead-free, RoHS-compliant termination compatible with standard reflow profiles (peak 260 °C). |
Applications
| Automotive Infotainment USB Interface | Industrial RS-485 Data Line Protection |
|---|---|
Use Scenario: Protecting USB 2.0 D+ and D− lines in head unit or display module against ESD events during cable insertion or handling. IC Role / Device Role / Timing Role: Two-line ESD suppressor placed directly at connector, clamping transients before they reach USB transceiver IC. Use Value: Prevents latch-up or damage to USB PHY while maintaining <1 ns jitter impact due to 115 pF capacitance. | Use Scenario: Safeguarding differential RS-485 bus (A/B) in factory automation PLCs exposed to lightning-induced surges and cable ESD. IC Role / Device Role / Timing Role: Dual-channel TVS diode providing common-mode and differential-mode surge suppression referenced to chassis ground. Use Value: Delivers 12 A per line surge handling and 21.2 V clamping-well below RS-485 receiver's ±15 V abs max rating. |
| Automotive Body Control Module (BCM) LIN Bus | Medical Patient Monitor Sensor Interface |
Use Scenario: Shielding LIN bus signal (LIN-BUS) and wake-up line (WAKE) in door module or seat controller from battery dump and ESD. IC Role / Device Role / Timing Role: Dual-path protector using BiAs mode: LIN-BUS to Pin 1/GND, WAKE to Pin 2/GND. Use Value: 12 V VRWM matches 12 V vehicle supply; 1 μA leakage avoids false wake-ups in sleep mode. | Use Scenario: Protecting analog sensor inputs (e.g., ECG leads, temperature probes) from electrostatic discharge in handheld patient monitors. IC Role / Device Role / Timing Role: Low-leakage (1 μA), low-capacitance (115 pF) ESD clamp on each sensor channel, referenced to medical-grade isolated ground. Use Value: Preserves microvolt-level signal fidelity and avoids DC offset errors caused by higher IR or parasitic capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| VGSOT12C | Successor series with identical VRWM (12 V), IPPM (12 A), and SOT-23 footprint; improved thermal resistance and updated AEC-Q101 test compliance. | Same BiAs/BiSy functionality and pinout; intended for new designs where long-term supply continuity is required beyond Jan 2025 EOL date. | Select VGSOT12C for production ramp after Q1 2025; GSOT12C-HG3-08 remains valid for legacy builds and existing BOMs. |
| SMF12CT | Single-line SOD-123 package; 12 V VRWM, 12 A IPPM, but only one protection path; 130 pF capacitance; no BiAs capability. | Requires two devices for dual-line protection; larger board area; lacks integrated dual-channel coordination and lower total capacitance. | Use only when dual-line integration is not required or SOT-23 footprint is unavailable; not a drop-in replacement. |
Compared with VGSOT12C, GSOT12C-HG3-08 offers identical electrical specs and mechanical fit but reaches end-of-life in January 2025; SMF12CT provides single-line protection only and increases component count, making it less optimal for space-constrained dual-data-line systems.
Availability
GSOT12C-HG3-08 is available at Aetrix Electronics and suitable for automotive infotainment, industrial RS-485 networks, and medical sensor interfaces requiring stable component supply through its end-of-life date in January 2025.
Supply support for GSOT12C-HG3-08 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 automotive, industrial, and computing markets.
The GSOTxxC family was designed specifically for compact, high-performance ESD protection of high-speed data lines in harsh environments, emphasizing AEC-Q101 qualification, low capacitance, and dual-channel integration in SOT-23.
FAQ
What is the maximum clamping voltage of GSOT12C-HG3-08 at its rated peak pulse current?
The maximum clamping voltage (VC) of GSOT12C-HG3-08 is 26.0 V when subjected to its full 12 A peak pulse current (IPPM) per line-to-ground path, measured per IEC 61000-4-5 8/20 μs waveform. This value ensures protected ICs with 30 V absolute maximum ratings retain safe operating margins. The GSOT12C-HG3-08 achieves this while maintaining low leakage and tight tolerance across temperature.
Can GSOT12C-HG3-08 be used for single-line symmetrical protection?
Yes, GSOT12C-HG3-08 supports BiSy-MODE (bidirectional symmetrical) operation: leave pin 3 unconnected, connect pin 1 to the signal line and pin 2 to ground (or vice versa). In this configuration, it provides 12.5 V VRWM and 23.4 V clamping at 12 A, with symmetrical positive/negative clamping behavior. The GSOT12C-HG3-08 retains all electrical specs except capacitance, which drops to 58 pF in this mode.
Is GSOT12C-HG3-08 qualified for automotive applications?
Yes, GSOT12C-HG3-08 is AEC-Q101 qualified, having passed stress tests including HTGB, AC/DC life test, ESD HBM/MM, and temperature cycling. Its −55 °C to +150 °C operating range, 1 μA leakage at 12 V, and ±30 kV ESD immunity make it suitable for automotive infotainment, body control, and ADAS subsystems. The GSOT12C-HG3-08 carries Vishay's automotive-grade traceability and lot control.
What is the capacitance of GSOT12C-HG3-08 at 12 V reverse bias?
At 12 V reverse bias and 1 MHz frequency, the capacitance (CD) of GSOT12C-HG3-08 is 50 pF maximum. This low-bias capacitance is critical for minimizing signal distortion on high-impedance or high-frequency lines such as LIN bus or sensor analog outputs. The GSOT12C-HG3-08 maintains this value across temperature and ensures predictable impedance matching in precision analog paths.
How does GSOT12C-HG3-08 differ from GSOT05C-HG3-08 in system protection design?
GSOT12C-HG3-08 has 12 V VRWM and 21.2 V clamping at 12 A, targeting 12 V rail systems like automotive LIN or industrial 10–15 V buses; GSOT05C-HG3-08 offers 5 V VRWM and 12 V clamping, suited for 3.3 V/5 V logic and USB data lines. Their different breakdown voltages (15 V vs. 6.8 V typ) and capacitances (115 pF vs. 260 pF) require matching to specific interface voltage levels and bandwidth needs. Selecting GSOT12C-HG3-08 avoids over-clamping risk in 12 V domains.
GSOT12C-HG3-08 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):
- 12V (Max)
- Voltage - Breakdown (Min):
- 13.5V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 12A (8/20µs)
- Power - Peak Pulse:
- 312W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 115pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
GSOT12C-HG3-08 FAQ
1.How can I place an order for GSOT12C-HG3-08 through Aetrix?
Please submit a Request for Quotation (RFQ) for GSOT12C-HG3-08 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 GSOT12C-HG3-08 reliable?
The price and inventory of GSOT12C-HG3-08 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GSOT12C-HG3-08 is usually 5 days.
3.What payment methods are accepted for GSOT12C-HG3-08?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GSOT12C-HG3-08 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GSOT12C-HG3-08?
GSOT12C-HG3-08 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GSOT12C-HG3-08 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 GSOT12C-HG3-08?
For technical support, including GSOT12C-HG3-08 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GSOT12C-HG3-08 requirements.
6.How does Aetrix verify that GSOT12C-HG3-08 is sourced from the original manufacturer or authorized distributors?
All GSOT12C-HG3-08 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 GSOT12C-HG3-08 meets industry standards.
7.What is the process for return or replacement of GSOT12C-HG3-08?
All GSOT12C-HG3-08 units undergo pre-shipment inspection (PSI). If there is an issue with GSOT12C-HG3-08, 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 GSOT12C-HG3-08 part is unused and in its original packaging.
Return procedure for GSOT12C-HG3-08:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
GSOT12C-HG3-08 Tags
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