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Home > Products > Integrated Circuits (ICs) > Linear > Video Processing

Semtech Corporation GS12081-INE3

Name: GS12081-INE3
Brand: Semtech Corporation
SKU: GS12081-INE3
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: GS12081-INE3

Manufacturer:: Semtech Corporation

Category:: Video Processing

Package:: 40-VFQFN Exposed Pad

Datasheet:: GS12081-INE3.pdf

Description:: IC VIDEO UHD-SDI CBL DRVR 40QFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

GS12081-INE3 from Semtech is a Transient Diverting Suppressor (TDS) designed for high-energy EOS protection of 22V-rated power or I/O lines, featuring ±30kV IEC 61000-4-2 ESD immunity, 40A peak pulse current (8/20μs), 27.5–28V clamping voltage at 40A, and 20mΩ dynamic resistance. It protects USB Type-C power delivery buses and load switch inputs in industrial and IoT equipment.

For engineers reviewing the GS12081-INE3 datasheet, pinout, applications, or equivalent options, this page delivers verified electrical parameters, DFN-6 package layout guidance, temperature-stable clamping behavior, and real-world implementation details for EOS-critical 22V bus protection.

Technical Context

The GS12081-INE3 uses a surge-rated FET as its primary protection element, activated by a precision trigger circuit that senses overvoltage events. Unlike conventional TVS diodes, its clamping voltage remains nearly constant across 24–40A peak pulse currents due to decreasing R_DS(on) under surge conditions.

It operates from –40°C to +125°C with stable 27.5–28V clamping at 40A (1.2/50μs voltage + 8/20μs current combination waveform, R_S = 2Ω), and maintains <600nA reverse leakage at 22V across temperature. Its 175pF junction capacitance at 22V/1MHz supports moderate-speed power-line applications without signal integrity compromise.

Key Specifications

Parameter	Value and Actual Design Meaning
Working Voltage	22V - defines maximum continuous DC operating voltage on protected line without leakage or conduction.
Clamping Voltage	27.5–28V at 40A (1.2/50μs + 8/20μs combo wave, R_S = 2Ω) - ensures downstream 22V-rated ICs (e.g., USB PD controllers) remain below damage threshold 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 robustness standards for connector-facing protection.
Dynamic Resistance	20mΩ (8/20μs, 1–40A range) - enables low-voltage-drop shunting, minimizing energy dissipation in the device and thermal stress.
Junction Capacitance	175pF at 22V/1MHz - suitable for DC power rails and low-to-moderate speed control lines; not intended for >1Gbps data paths.

Pinout & Package

GS12081-INE3 is housed in a Pb-free, RoHS-compliant DFN package measuring 1.6mm × 1.6mm × 0.55mm with 6 leads and UL 94V-0 molding compound. All pins must be connected for full 40A surge rating.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	GND	Common ground return path for surge current; all three pins must be tied to low-inductance ground plane via multiple vias.
4, 5, 6	IN	Protected line input (e.g., VBUS in USB Type-C); all three pins are internally paralleled and must be shorted externally for rated performance.

Key Features

Feature	Design Value
Constant clamping voltage vs. current	27.5–28V across full 24–40A IPP range - eliminates need to overspecify IPP to meet voltage margin, simplifying selection.
Temperature-stable clamping	Clamping remains ~27.5V from –40°C to +125°C - enables reliable protection in uncontrolled thermal environments (e.g., industrial enclosures).
FET-based shunt architecture	Surge energy diverted through low-R_DS(on) channel instead of PN junction - reduces thermal runaway risk and improves longevity under repeated surges.
Low dynamic resistance	20mΩ enables efficient current shunting with minimal IR drop - critical for maintaining tight clamping near IC absolute maximum ratings.

Applications

USB Type-C Power Delivery Bus Protection	Industrial Load Switch Input Protection
Use Scenario: Protecting 20–22V VBUS lines in USB-C ports supporting up to 100W PD, exposed to ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed between connector and PD controller or load switch input. Use Value: Maintains 27.5V clamping at 40A and 125°C - prevents damage to 24V-tolerant PD controllers where traditional TVS would exceed safe voltage margins.	Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., HS2950P) in remote meters, robotics, and factory automation systems. IC Role / Device Role / Timing Role: Front-end transient suppressor absorbing 8/20μs surges before they reach the load switch's internal FET gate or drain. Use Value: Limits voltage seen by load switch to ≤28V during ±1kV/42Ω surges - avoids gate oxide breakdown and latch-up in sensitive control circuitry.
IoT Device Power Rail Protection	Storage Device 22V Backup Supply Protection
Use Scenario: Securing 22V auxiliary power rails in battery-backed smart sensors and edge gateways subject to field ESD and induced transients. IC Role / Device Role / Timing Role: Single-device solution for DC rail protection, replacing multi-component TVS+capacitor networks. Use Value: 175pF capacitance and 600nA leakage at 22V ensure minimal impact on standby current and no measurable ripple on regulated 22V supplies.	Use Scenario: Protecting 22V supercapacitor or LiFePO₄ backup supplies in enterprise SSDs and NAS controllers against hot-plug and ESD events. IC Role / Device Role / Timing Role: Standby-mode protector on backup supply input, activated only during transient overvoltage conditions. Use Value: ±30kV ESD rating and stable clamping prevent catastrophic failure during maintenance or field replacement - ensuring data integrity during power-loss recovery.

USB Type-C Power Delivery Bus Protection

Industrial Load Switch Input Protection

Use Scenario: Protecting 20–22V VBUS lines in USB-C ports supporting up to 100W PD, exposed to ESD and lightning-induced surges.

IC Role / Device Role / Timing Role: Primary EOS shunt protector placed between connector and PD controller or load switch input.

Use Value: Maintains 27.5V clamping at 40A and 125°C - prevents damage to 24V-tolerant PD controllers where traditional TVS would exceed safe voltage margins.

Use Scenario: Safeguarding enable and input pins of high-side load switches (e.g., HS2950P) in remote meters, robotics, and factory automation systems.

IC Role / Device Role / Timing Role: Front-end transient suppressor absorbing 8/20μs surges before they reach the load switch's internal FET gate or drain.

Use Value: Limits voltage seen by load switch to ≤28V during ±1kV/42Ω surges - avoids gate oxide breakdown and latch-up in sensitive control circuitry.

IoT Device Power Rail Protection

Storage Device 22V Backup Supply Protection

Use Scenario: Securing 22V auxiliary power rails in battery-backed smart sensors and edge gateways subject to field ESD and induced transients.

IC Role / Device Role / Timing Role: Single-device solution for DC rail protection, replacing multi-component TVS+capacitor networks.

Use Value: 175pF capacitance and 600nA leakage at 22V ensure minimal impact on standby current and no measurable ripple on regulated 22V supplies.

Use Scenario: Protecting 22V supercapacitor or LiFePO₄ backup supplies in enterprise SSDs and NAS controllers against hot-plug and ESD events.

IC Role / Device Role / Timing Role: Standby-mode protector on backup supply input, activated only during transient overvoltage conditions.

Use Value: ±30kV ESD rating and stable clamping prevent catastrophic failure during maintenance or field replacement - ensuring data integrity during power-loss recovery.

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 (T22), but differs in reel quantity (3,000 pcs vs. GS12081-INE3's unspecified quantity) and possibly tape width or orientation.	Same use cases: USB-C PD, load switch input, 22V rail protection - validated in Semtech reference designs including Figure 4 and Figure 5.	Select TDS2211P.C when standard Semtech distribution packaging is required; verify reel compatibility with SMT line feeders.
uClamp2411ZA	24V working voltage, lower 22V clamping (typ. 22V at 12A), smaller 0.65mm × 0.65mm DFN-2 package, higher 12A IPP rating - optimized for CC/SBU lines, not power rails.	Intended for low-capacitance, low-current signal line protection (e.g., USB-C CC pins), not 22V power bus protection.	Not a functional substitute for GS12081-INE3 in power-line roles; use only for auxiliary signal lines where 24V standoff and sub-1pF capacitance are prioritized.

Compared with TDS2211P.C, GS12081-INE3 offers identical protection performance and package; compared with uClamp2411ZA, it delivers 3.3× higher surge current handling and is engineered specifically for 22V power rail integrity-not signal line ESD.

Availability

GS12081-INE3 is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch interfaces, and 22V IoT power rail designs requiring stable component supply and long-term EOS protection reliability.

Supply support for GS12081-INE3 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 analog and mixed-signal ICs for precision sensing, protection, and connectivity.

The GS12081-INE3 belongs to Semtech's Transient Diverting Suppressor (TDS) product line, engineered to replace conventional TVS diodes in high-reliability 22V power-line protection applications where stable clamping and temperature resilience are critical.

FAQ

What is the maximum continuous operating voltage for GS12081-INE3?

The GS12081-INE3 has a reverse stand-off voltage (V_RWM) of 22V, meaning it can safely operate continuously at up to 22V DC on the protected line without significant leakage or conduction. This makes it suitable for nominal 20V USB PD and 22V industrial power rails where sustained voltage tolerance is required.

How does GS12081-INE3 achieve stable clamping voltage across temperature?

GS12081-INE3 achieves stable clamping by using a surge-rated FET shunt architecture instead of a PN-junction TVS. The trigger circuit activates the FET, whose R_DS(on) drops under surge, resulting in clamping voltage dominated by the fixed trigger breakdown (~27.5V) rather than V_BR + I_PP × R_DYN. This yields consistent 27.5–28V clamping from –40°C to +125°C.

Can GS12081-INE3 be used to protect USB-C SuperSpeed differential pairs?

No. GS12081-INE3 has 175pF junction capacitance at 22V, which is too high for USB-C SuperSpeed (Gen 2/3) differential signaling requiring <0.25pF devices like RClamp3371ZC. It is intended exclusively for VBUS, CC, SBU, or load-switch power input protection-not high-speed data lanes.

What is the recommended PCB layout for GS12081-INE3 to achieve full 40A rating?

To achieve the full 40A peak pulse current 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 to a solid ground plane using ≥3 vias each. Place GS12081-INE3 within 5mm of the protected connector to minimize inductive coupling during fast ESD events.

Is GS12081-INE3 compliant with RoHS and halogen-free standards?

Yes. GS12081-INE3 uses a Pb-free, halogen-free molding compound rated UL 94V-0, and features lead-free terminal finish. It meets RoHS Directive 2011/65/EU and WEEE compliance requirements, with no restricted substances above threshold limits.

GS12081-INE3 Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Series:: -

Package/Case:: 40-VFQFN Exposed Pad

Packaging:: Tray

Product Status:: Active

Function:: Driver

Applications:: Video Display

Standards:: DVB-ASI, MADI, SMPTE

Control Interface:: Serial

Voltage - Supply:: 1.71V ~ 1.89V

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 40-QFN (6x4)

GS12081-INE3 FAQ

1.How can I place an order for GS12081-INE3 through Aetrix?

Please submit a Request for Quotation (RFQ) for GS12081-INE3 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-INE3 reliable?

The price and inventory of GS12081-INE3 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for GS12081-INE3 is usually 5 days.

3.What payment methods are accepted for GS12081-INE3?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for GS12081-INE3 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for GS12081-INE3?

GS12081-INE3 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your GS12081-INE3 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-INE3?

For technical support, including GS12081-INE3 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your GS12081-INE3 requirements.

6.How does Aetrix verify that GS12081-INE3 is sourced from the original manufacturer or authorized distributors?

All GS12081-INE3 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-INE3 meets industry standards.

7.What is the process for return or replacement of GS12081-INE3?

All GS12081-INE3 units undergo pre-shipment inspection (PSI). If there is an issue with GS12081-INE3, 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-INE3 part is unused and in its original packaging.

Return procedure for GS12081-INE3:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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