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Semtech Corporation GS12081-INTE3
- Part No.:
- GS12081-INTE3
- Manufacturer:
- Semtech Corporation
- Category:
- Video Processing
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
GS12081-INTE3.pdf
- Description:
- 12G UHD-SDI CABLE DRIVER
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
GS12081-INTE3 from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines. It delivers ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), and stable 27.5–28V clamping across temperature and current range. Used in USB Type-C PD input protection to safeguard controllers from voltage overshoot beyond 22V operating limits.
For engineers reviewing the GS12081-INTE3 datasheet, pinout, applications, or equivalent options, this page provides verified electrical parameters, DFN-6 package layout guidance, clamping stability data across -40°C to +125°C, and direct alternatives for industrial and USB PD system-level surge protection design.
Technical Context
The GS12081-INTE3 implements a precision-triggered shunt FET architecture - not a conventional TVS diode - enabling near-constant clamping voltage independent of peak pulse current magnitude. Its dynamic resistance is 20mΩ (8/20μs), and clamping remains stable from -40°C to +125°C due to active gate control rather than junction-limited conduction.
It protects one unidirectional line with reverse stand-off voltage (VRWM) of 22V, breakdown voltage (VBR) of 25–27.9V at 1mA, and low 175pF junction capacitance at 22V/1MHz. The device operates with <600nA leakage at VRWM and features solid-state, RoHS-compliant DFN packaging optimized for PCB space-constrained USB PD and load switch inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Working Voltage | 22V VRWM - defines maximum continuous bus voltage before activation; matches USB PD 20V nominal + margin. |
| Clamping Voltage | 27.5–28V at 40A (8/20μs) - ensures protected ICs (e.g., USB PD controllers) remain below absolute max ratings during surge. |
| Peak Pulse Current | 40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements for 22V systems. |
| ESD Withstand | ±30kV contact & air (IEC 61000-4-2) - exceeds automotive and industrial ESD test thresholds without degradation. |
| Junction Capacitance | 175pF at 22V/1MHz - low enough to avoid signal integrity impact on DC/low-speed power lines; not suitable for high-speed data lanes. |
| Dynamic Resistance | 20mΩ (8/20μs) - enables flat clamping curve; contrasts sharply with TVS diodes whose VC rises linearly with IPP. |
| Operating Temp. | -40°C to +125°C - supports industrial and automotive under-hood environments without derating. |
Pinout & Package
GS12081-INTE3 uses a Pb-free, halogen-free DFN-6 package measuring 1.6mm × 1.6mm × 0.55mm (UL 94V-0 molding compound). Thermal performance relies on full GND pad connection; no thermal pad required as energy is dissipated via active FET conduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 2, 3 | GND | Common ground return path for surge current; all three pins must be connected to maximize current handling and minimize inductance. |
| 4, 5, 6 | IN | Protected line input (e.g., VBUS in USB PD); all three pins are internally paralleled and must be shorted externally for rated 40A performance. |
Key Features
| Feature | Design Value |
|---|---|
| Constant-clamp architecture | Clamping voltage stays within 27.5–28V from 24A to 40A and -40°C to +125°C - eliminates need for over-spec'ing IPP to meet VC budget. |
| Surge-rated FET core | Replaces PN-junction TVS with low-RDS(on) shunt FET activated by precision trigger circuit - avoids thermal runaway and junction heating limitations. |
| Low dynamic resistance | 20mΩ measured between 1A–40A (8/20μs) - enables minimal voltage rise under high di/dt transients, critical for protecting sensitive load switches. |
| High-energy ESD robustness | ±30kV contact/air per IEC 61000-4-2 - survives repeated ESD events without parameter shift or failure, unlike standard TVS diodes. |
| Space-optimized DFN | 1.6mm × 1.6mm footprint - saves >50% board area vs. SO-8 or SOT-23 TVS solutions rated for equivalent 40A surge capability. |
Applications
| USB Type-C Power Delivery Input Protection | Industrial Load Switch Input Protection |
|---|---|
|
Use Scenario: Protecting VBUS line in USB-C receptacles supporting up to 20V/5A PD, exposed to lightning-induced surges and hot-plug ESD. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed immediately after connector, clamping transients before reaching PD controller and e-fuse. Use Value: Maintains 27.5–28V clamping at full 40A surge - keeps PD controller within its 30V absolute maximum rating even at 125°C ambient. |
Use Scenario: Safeguarding input of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment. IC Role / Device Role / Timing Role: Front-end transient suppressor that diverts surge energy away from the load switch's internal MOSFET drain-source junction. Use Value: Prevents catastrophic failure of the load switch by limiting clamping voltage to ≤28V - well below typical 30–40V VDS(max) ratings. |
| IoT Edge Device Power Rail Protection | Storage Device 22V Bus Protection |
|
Use Scenario: Securing 22V auxiliary power rails in battery-backed IoT gateways subjected to EFT bursts and cable discharge events. IC Role / Device Role / Timing Role: Single-device solution for IEC 61000-4-4 (±4kV EFT) and IEC 61000-4-5 (±1kV surge) compliance on DC input lines. Use Value: Delivers 40A surge handling in 1.6mm² footprint - enables compact, certified designs without external RC snubbers or multi-stage protection. |
Use Scenario: Protecting 22V power buses in NVMe SSD enclosures and enterprise storage backplanes against hot-swap transients and backplane coupling. IC Role / Device Role / Timing Role: High-reliability rail clamp positioned at board edge to intercept surges entering via power connectors or backplane slots. Use Value: Stable clamping across temperature ensures consistent protection margin during sustained operation in 70°C+ server chassis environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TDS2211P.C | Identical electrical specs, same DFN-6 package, identical marking code T22; manufactured by Semtech as direct variant. | No functional difference; used interchangeably in USB PD and industrial designs per Semtech ordering documentation. | Select when requiring Semtech's standard tape-and-reel packaging (3,000 pcs/reel) and official traceability. |
| SMAJ22A | Standard unidirectional TVS diode; 22V VRWM, 35.5V VC @ 12.3A (8/20μs); higher clamping, lower IPP (12.3A), larger DO-214AC package. | Limited to lower-energy surges; clamping rises with temperature and current - unsuitable for 40A or high-temp industrial use. | Choose only for cost-sensitive, non-critical 22V lines where 40A surge immunity and temperature stability are not required. |
Compared with GS12081-INTE3, TDS2211P.C offers identical performance and form factor with standardized logistics, while SMAJ22A trades clamping stability and surge rating for lower unit cost and wider distributor availability - but requires careful thermal and voltage-margin analysis in demanding applications.
Availability
GS12081-INTE3 is available at Aetrix Electronics and suitable for USB Type-C PD interfaces, industrial load switch inputs, and IoT edge device power rails requiring stable component supply with guaranteed long-term lifecycle support.
Supply support for GS12081-INTE3 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
Semtech Corporation is a U.S.-based fabless semiconductor company specializing in high-performance analog and mixed-signal semiconductors for power management, protection, and signal integrity.
The GS12081-INTE3 belongs to Semtech's Transient Diverting Suppressor (TDS) product line - engineered specifically to replace conventional TVS diodes in high-reliability 22V power rail protection where stable clamping and wide temperature operation are mandatory.
FAQ
What is the primary circuit role of GS12081-INTE3 in a USB Type-C PD design?
The GS12081-INTE3 serves as the front-line transient suppressor on the VBUS line, clamping EOS events such as ESD, lightning-induced surges, and cable discharge before they reach the USB PD controller or load switch. Its 22V working voltage and stable 27.5–28V clamping ensure protected ICs remain within absolute maximum ratings - a critical function confirmed in Semtech's USB Type-C protection reference design using GS12081-INTE3.
Does GS12081-INTE3 require a thermal pad on the PCB?
No, GS12081-INTE3 does not require a thermal pad. Unlike TVS diodes that dissipate surge energy in the PN junction, GS12081-INTE3 uses an active shunt FET whose RDS(on) drops under surge, converting energy primarily into conduction loss rather than localized heating. Semtech's datasheet explicitly states "no thermal pad is needed" and recommends connecting all GND pins directly to the ground plane via multiple vias instead.
Can GS12081-INTE3 be used on high-speed data lines like USB SuperSpeed or PCIe?
No, GS12081-INTE3 is not suitable for high-speed data lines. Its 175pF junction capacitance at 22V/1MHz is too high for signal integrity on differential pairs operating above ~100MHz. Semtech's application notes specify GS12081-INTE3 exclusively for DC or low-frequency power/data lines (e.g., VBUS, CC, SBU), while recommending sub-0.25pF devices like RClamp3371ZC for SuperSpeed lanes - a distinction clearly defined in the TDS2211P datasheet.
How does GS12081-INTE3's clamping behavior differ from a standard TVS diode at elevated temperature?
GS12081-INTE3 maintains 27.5–28V clamping from -40°C to +125°C, whereas standard TVS diodes exhibit rising clamping voltage with temperature due to increased dynamic resistance. This stability arises from its FET-based architecture: the trigger circuit's breakdown voltage dominates clamping, and the FET's RDS(on) decreases with temperature - counteracting thermal drift. Data in Figure 3 of the datasheet confirms flat clamping vs. temperature, unlike TVS curves that rise >5V over the same range.
What is the minimum recommended PCB layout practice for GS12081-INTE3 to achieve rated 40A surge performance?
To achieve full 40A (8/20μs) rating, all three IN pins (4,5,6) must be shorted together with a low-inductance trace, and all three GND pins (1,2,3) must connect directly to a solid ground plane using ≥3 vias. Semtech's layout guidelines emphasize placing GS12081-INTE3 within 5mm of the connector and avoiding stubs or splits in the IN/GND paths - deviations reduce effective surge current handling and increase clamping voltage beyond the specified 28V limit.
GS12081-INTE3 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Semtech Corporation
- Series:
- -
- Package/Case:
- 40-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Driver
- Applications:
- Professional Video
- Standards:
- DVB-ASI
- Control Interface:
- Serial
- Voltage - Supply:
- 1.71V ~ 1.89V
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 40-QFN (6x4)
GS12081-INTE3 FAQ
1.How can I place an order for GS12081-INTE3 through Aetrix?
Please submit a Request for Quotation (RFQ) for GS12081-INTE3 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 GS12081-INTE3 reliable?
The price and inventory of GS12081-INTE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GS12081-INTE3 is usually 5 days.
3.What payment methods are accepted for GS12081-INTE3?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GS12081-INTE3 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for GS12081-INTE3?
GS12081-INTE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your GS12081-INTE3 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 GS12081-INTE3?
For technical support, including GS12081-INTE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GS12081-INTE3 requirements.
6.How does Aetrix verify that GS12081-INTE3 is sourced from the original manufacturer or authorized distributors?
All GS12081-INTE3 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 GS12081-INTE3 meets industry standards.
7.What is the process for return or replacement of GS12081-INTE3?
All GS12081-INTE3 units undergo pre-shipment inspection (PSI). If there is an issue with GS12081-INTE3, 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 GS12081-INTE3 part is unused and in its original packaging.
Return procedure for GS12081-INTE3:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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