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Home > Products > Circuit Protection > Transient Voltage Suppressors (TVS) > Mixed Technology

Semtech Corporation ECLAMP10012PQTCT

Name: ECLAMP10012PQTCT
Brand: Semtech Corporation
SKU: ECLAMP10012PQTCT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ECLAMP10012PQTCT

Manufacturer:: Semtech Corporation

Category:: Mixed Technology

Package:: 5-UFDFN

Datasheet:: ECLAMP10012PQTCT.pdf

Description:: TVS DEVICE TVS DIODE 25V 5-DFN

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Product details

Overview

ECLAMP10012PQTCT from Semtech is a transient diverting suppressor designed for high-energy EOS/ESD protection of 22V-rated I/O or power lines in USB Type-C, USB PD, and industrial interfaces. 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 using a surge-rated FET shunt architecture.

For engineers reviewing the ECLAMP10012PQTCT datasheet, pinout, applications, or equivalent options, key selection criteria include clamping voltage stability under 40A surges, low dynamic resistance (20mΩ), 175pF junction capacitance at 22V, DFN 1.6×1.6mm package compatibility, and suitability for load switch input protection in IoT and industrial equipment.

Technical Context

ECLAMP10012PQTCT implements a precision-triggered, FET-based shunt topology - not a conventional TVS diode - enabling near-constant clamping voltage (27.5–28V) from 24A to 40A and across –40°C to +125°C. Its trigger circuit activates the low-R_DS(on) FET when transient voltage exceeds ~25V breakdown, bypassing energy to ground via three parallel IN pins and three GND pins.

The device operates with 22V reverse stand-off voltage, 130–600nA leakage at VRWM, and 175pF capacitance at 22V/1MHz - optimized for high-speed bus protection without signal integrity degradation. Its 1.6×1.6mm DFN package integrates all six terminals with symmetrical layout to minimize parasitic inductance during 8/20μs surge events.

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 (8/20μs) - ensures downstream ICs (e.g., USB PD controllers) remain below damage threshold during worst-case surge.
Peak Pulse Current	40A (8/20μs) - meets IEC 61000-4-5 Level 4 industrial surge immunity requirements with 2Ω source impedance.
ESD Withstand	±30kV contact & air (IEC 61000-4-2) - exceeds Level 4 immunity for handheld and connector-exposed interfaces.
Dynamic Resistance	20mΩ - enables flat clamping response by minimizing IR drop increase as surge current rises from 1A to 40A.
Junction Capacitance	175pF at 22V/1MHz - low enough for USB 2.0 and power-line protection without degrading signal rise/fall times.
Package	DFN 1.6×1.6×0.55mm, 6-lead - enables ultra-compact placement adjacent to connectors with minimal PCB area and thermal mass.

Pinout & Package

Package: DFN 1.6 mm × 1.6 mm × 0.55 mm, 6-lead, Pb-free, RoHS/WEEE compliant, UL 94V-0 molding compound.

Pin/Terminal	Circuit Role	Design Meaning
1, 2, 3	GND	Common ground return path for surge current; all three must be connected to maximize current sharing and minimize inductance.
4, 5, 6	IN	Parallel-connected input terminals for protected line (e.g., VBUS); all three required for full 40A rating and optimal ESD coupling path.

Key Features

Feature	Design Value
FET-based shunt architecture	Replaces traditional TVS diodes with active switching - clamping voltage remains stable across 24–40A and –40°C to +125°C.
Low dynamic resistance	20mΩ ensures <0.8V additional voltage rise from 24A to 40A surge, critical for tight voltage-margin systems like USB PD.
High EFT immunity	±4kV per IEC 61000-4-4 (5/50ns, 100kHz/5kHz) - protects against repetitive fast transients in industrial control and metering environments.
Compact DFN footprint	1.6×1.6mm area saves >50% board space vs. SOIC-8 or SOT-23 alternatives while maintaining 1120W peak power handling.
Lead-free & halogen-free	Meets RoHS/WEEE and JEDEC MSL-1 standards - suitable for lead-free reflow and long-term reliability in consumer and industrial applications.

Applications

USB Type-C Power Delivery Protection	Industrial Load Switch Input Protection
Use Scenario: Protecting VBUS lines in USB Type-C ports supporting up to 20V/5A PD negotiation, exposed to ESD at connectors and lightning-induced surges on attached cables. IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at the Type-C receptacle, clamping transients before they reach the PD controller or load switch. Use Value: Maintains 27.5–28V clamping at 40A and 125°C - avoids overvoltage damage to 30V-rated PD controllers where conventional TVS would exceed 38V at same conditions.	Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment subject to 1kV/42Ω surges. IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage seen by the load switch's internal FET gate oxide and drain-source junction. Use Value: Prevents latch-up or permanent failure of the load switch by holding clamping voltage below its absolute maximum ratings, even during repeated 40A surges.
IoT Device Power Bus Protection	Storage Device Interface Protection
Use Scenario: Securing 22V-capable power rails in battery-powered edge sensors and gateway modules deployed in electrically noisy environments (e.g., smart building HVAC). IC Role / Device Role / Timing Role: Single-component solution for combined ESD, EFT, and surge protection on main supply input, eliminating need for multi-stage TVS+MOV designs. Use Value: Reduces BOM count and layout complexity while delivering guaranteed ±30kV ESD and 40A surge capability in <2.6mm² footprint.	Use Scenario: Shielding SATA or eMMC power lines in SSDs and embedded storage modules from EOS events during hot-plug, cable disconnect, or power sequencing faults. IC Role / Device Role / Timing Role: Standalone overvoltage clamp on VCC/VDD lines, coordinated with low-capacitance TVS (e.g., RClamp3371ZC) on data lanes. Use Value: Enables robust 22V rail protection without adding signal distortion - 175pF capacitance avoids timing skew on 6Gbps SATA links.

USB Type-C Power Delivery Protection

Industrial Load Switch Input Protection

Use Scenario: Protecting VBUS lines in USB Type-C ports supporting up to 20V/5A PD negotiation, exposed to ESD at connectors and lightning-induced surges on attached cables.

IC Role / Device Role / Timing Role: Primary EOS shunt protector placed directly at the Type-C receptacle, clamping transients before they reach the PD controller or load switch.

Use Value: Maintains 27.5–28V clamping at 40A and 125°C - avoids overvoltage damage to 30V-rated PD controllers where conventional TVS would exceed 38V at same conditions.

Use Scenario: Safeguarding input terminals of industrial-grade load switches (e.g., HS2950P) in remote meters, robotics, and factory automation equipment subject to 1kV/42Ω surges.

IC Role / Device Role / Timing Role: Front-end transient diverter that limits voltage seen by the load switch's internal FET gate oxide and drain-source junction.

Use Value: Prevents latch-up or permanent failure of the load switch by holding clamping voltage below its absolute maximum ratings, even during repeated 40A surges.

IoT Device Power Bus Protection

Storage Device Interface Protection

Use Scenario: Securing 22V-capable power rails in battery-powered edge sensors and gateway modules deployed in electrically noisy environments (e.g., smart building HVAC).

IC Role / Device Role / Timing Role: Single-component solution for combined ESD, EFT, and surge protection on main supply input, eliminating need for multi-stage TVS+MOV designs.

Use Value: Reduces BOM count and layout complexity while delivering guaranteed ±30kV ESD and 40A surge capability in <2.6mm² footprint.

Use Scenario: Shielding SATA or eMMC power lines in SSDs and embedded storage modules from EOS events during hot-plug, cable disconnect, or power sequencing faults.

IC Role / Device Role / Timing Role: Standalone overvoltage clamp on VCC/VDD lines, coordinated with low-capacitance TVS (e.g., RClamp3371ZC) on data lanes.

Use Value: Enables robust 22V rail protection without adding signal distortion - 175pF capacitance avoids timing skew on 6Gbps SATA links.

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	Same die, identical electrical specs, identical DFN 1.6×1.6mm package; differs only in tape-and-reel packaging (3,000 pcs/reel vs. ECLAMP10012PQTCT's 1,000 pcs/reel) and marking code.	No functional difference; validated for identical USB PD, industrial, and IoT use cases per Semtech documentation.	Select TDS2211P.C for higher-volume procurement where reel size and logistics align with production planning.
SMAJ22A	Standard unidirectional TVS diode; 22V standoff, 35.5V min clamping at 11.3A (8/20μs); no FET-based regulation - clamping rises with current and temperature.	Limited to lower-energy transients; unsuitable for 40A surges or high-temp operation where clamping must stay ≤28V.	Consider SMAJ22A only for cost-sensitive, non-critical 22V lines with <15A surge exposure and ambient <85°C.

Compared with TDS2211P.C, ECLAMP10012PQTCT offers identical protection performance but different packaging logistics; compared with SMAJ22A, ECLAMP10012PQTCT provides superior clamping stability, 2.5× higher surge rating, and guaranteed operation up to 125°C - essential for USB PD and industrial load switch inputs.

Availability

ECLAMP10012PQTCT is available at Aetrix Electronics and suitable for USB Type-C power delivery systems, industrial load switch inputs, and IoT device power bus protection requiring stable component supply, consistent parametric performance, and long-term lifecycle support.

Supply support for ECLAMP10012PQTCT 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 signal integrity.

ECLAMP10012PQTCT belongs to Semtech's Transient Diverting Suppressor (TDS) family - engineered to replace conventional TVS diodes with active FET-based clamping for applications demanding stable voltage limiting under high-current, high-temperature stress.

FAQ

What is the maximum continuous operating voltage for ECLAMP10012PQTCT?

ECLAMP10012PQTCT has a reverse stand-off voltage (V_RWM) of 22V, meaning it can continuously block up to 22V DC or RMS AC without significant leakage or conduction. This makes it suitable for protecting 20V USB PD VBUS lines and other 22V-rated industrial power rails. Exceeding 22V risks premature triggering or accelerated degradation of the internal FET trigger circuit.

How does ECLAMP10012PQTCT achieve stable clamping voltage across temperature and current?

ECLAMP10012PQTCT uses a precision-triggered, surge-rated FET as its primary protection element. When an EOS event exceeds the trigger threshold (~25V), the FET turns on with extremely low R_DS(on), causing clamping voltage to stabilize near the trigger circuit's breakdown voltage - not the FET's V_GS or V_DS. This architecture yields 27.5–28V clamping from –40°C to +125°C and 24A to 40A, unlike conventional TVS diodes whose clamping rises linearly with both parameters.

Can ECLAMP10012PQTCT be used for USB 3.2 SuperSpeed data line protection?

No - ECLAMP10012PQTCT is not intended for high-speed data line protection. Its 175pF junction capacitance at 22V is too high for USB 3.2 Gen 1/2 (5–10Gbps), which requires sub-0.3pF devices like RClamp3371ZC. ECLAMP10012PQTCT is specifically designed for VBUS, CC, SBU, or power-line protection where bandwidth constraints are relaxed and surge energy absorption is prioritized.

What is the recommended PCB layout for ECLAMP10012PQTCT to ensure full 40A surge capability?

To achieve rated 40A (8/20μs) performance, all three IN pins (4,5,6) must be shorted together with a single low-inductance trace to the protected line, and all three GND pins (1,2,3) must connect directly to a solid ground plane using multiple vias. Placement must be within 3mm of the connector, and no thermal pad is required - energy is dissipated in the silicon FET, not the package substrate.

Is ECLAMP10012PQTCT compatible with lead-free reflow soldering processes?

Yes - ECLAMP10012PQTCT is fully compatible with standard lead-free reflow profiles (J-STD-020, MSL-1). Its DFN package uses lead-free terminal finish and UL 94V-0 molding compound, supporting peak temperatures up to 260°C. No special pre-bake or moisture sensitivity handling is required due to its MSL-1 classification.

ECLAMP10012PQTCT Specifications

Product attributes: Attribute value

Manufacturer:: Semtech Corporation

Package/Case:: 5-UFDFN

Series:: -

Packaging:: Tape & Reel (TR)

Product Status:: Active

Voltage - Clamping:: 25V (Typ)

Technology:: TVS Diode

Number of Circuits:: 2

Applications:: -

Grade:: Automotive

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 5-DFN (2x1)

ECLAMP10012PQTCT FAQ

1.How can I place an order for ECLAMP10012PQTCT through Aetrix?

Please submit a Request for Quotation (RFQ) for ECLAMP10012PQTCT 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 ECLAMP10012PQTCT reliable?

The price and inventory of ECLAMP10012PQTCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ECLAMP10012PQTCT is usually 5 days.

3.What payment methods are accepted for ECLAMP10012PQTCT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ECLAMP10012PQTCT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ECLAMP10012PQTCT?

ECLAMP10012PQTCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ECLAMP10012PQTCT 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 ECLAMP10012PQTCT?

For technical support, including ECLAMP10012PQTCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ECLAMP10012PQTCT requirements.

6.How does Aetrix verify that ECLAMP10012PQTCT is sourced from the original manufacturer or authorized distributors?

All ECLAMP10012PQTCT 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 ECLAMP10012PQTCT meets industry standards.

7.What is the process for return or replacement of ECLAMP10012PQTCT?

All ECLAMP10012PQTCT units undergo pre-shipment inspection (PSI). If there is an issue with ECLAMP10012PQTCT, 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 ECLAMP10012PQTCT part is unused and in its original packaging.

Return procedure for ECLAMP10012PQTCT:

1.Submit a request within 90 days.

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

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